My primary thesis in this series is that meat-based nutrition is remarkably complete and easily accessible to the human body. It is important to all humans but especially to athletes who train hard and who are involved in extreme sports like UFC fighters. Many of the expensive supplements can be discarded simply by following a meat-based diet. In this article, I want to focus attention on the value of meat proteins.
Meat Proteins are Gold
The most basic building block of meat is the protein. They are essential for life. When we ingest them they are broken down by our digestive system into the tiny building blocks of proteins called amino acids. Our bodies break the proteins down into their building blocks and then use the building blocks to “build” new proteins for various functions within the human body. Amino acids in turn are the building blocks of proteins. Our bodies are unable to create all the amino acids required. This is the most fundamental aspect of nutrition.
The proteins it can not create itself are called essential, meaning they must be part of what we eat which is the only way we can get it. Essential amino acids cannot be synthesized (created) by the body. In contrast, nonessential amino acids can be produced by the body. Animal proteins (meat) are complete proteins, containing all essential amino acids in sufficient quantities. This completeness is vital for the body to synthesize (build) its own proteins, a process where these amino acids are assembled into specific sequences based on genetic instructions, enabling the body to perform various functions like muscle repair and enzyme production. They are used for a variety of important functions. For instance, some are involved in supporting the immune system, aiding in wound healing, and providing energy for the body. Others play a role in neurotransmitter production, which is crucial for brain function and mood regulation. Essentially, these amino acids contribute to maintaining the overall health and proper functioning of our bodies, even though we don’t need to obtain them directly from our diet.
The earliest humans ate meat. Meat is the only source we have that contains all the essential amino acids we need but can’t create ourselves. Meat not only contains all the essential amino acids, but it also contains them in sufficient quantities. This completeness is vital for the body to synthesize or build its own proteins, a process where these amino acids are assembled into specific sequences based on genetic instructions, enabling the body to perform various functions like muscle repair and enzyme production. The body uses the building blocks of the animal protein to build its own proteins but when it builds its own protein, it does so according to the blueprint of its own DNA and not according to the blueprint of the animal’s DNA.
The essential amino acids are key in muscle building and repair, others are important for maintaining healthy skin and hair, and some play a role in the proper functioning of the digestive and nervous systems. Essential amino acids are integral to producing hormones and enzymes that regulate bodily functions. The essential amino acids are Histidine, Isoleucine, Leucine, Lysine, Methionine, Phenylalanine, Threonine, Tryptophan, and Valine.
Having established the supreme value of meat, I want to remind you why I chose the UFC fighter and their nutritional demand to highlight the value of meat-based nutrition.
Birth of the UFC
The Ultimate Fighting Championship (UFC) was created by Art Davie, Rorion Gracie, Robert Meyrowitz, and John Milius. The first event was held on November 12, 1993. Rorion Gracie, from the renowned Gracie family, wanted to create a tournament to showcase Brazilian jiu-jitsu as the most effective martial art, allowing fighters from different disciplines to compete under minimal rules. Art Davie proposed the business idea, Robert Meyrowitz’s Semaphore Entertainment Group provided the pay-per-view platform, and John Milius contributed to the conceptual framework of the event. The UFC has since evolved from its early no-holds-barred roots to a highly regulated and mainstream sport.
The UFC fighter’s body requires ultimate nutrition due to the intense training they undergo as well as the physical nature of this fighting sport. It is like other top contact fighting sports like boxing, and judo. In the realm of contact sports, UFC fighters are subjected to one of the highest risks of injury, a consequence of the sport’s intense physical demands and the diverse range of techniques employed during combat. This accentuates the nutritional needs associated with this sport.
Mixed Martial Arts (MMA), the foundation of UFC, amalgamates striking, grappling, and submission techniques, exposing athletes to a broad spectrum of injury risks including, but not limited to, concussions, fractures, and soft tissue damage. As outlined earlier, the UFC’s multifaceted approach contrasts with the more specialized physical demands and injury risks associated with sports like boxing and judo, thereby necessitating a comprehensive strategy for injury prevention and recovery.
For athletes, particularly those in high-impact sports such as UFC, the nutritional strategy for recovery is paramount. Animal proteins play a critical role in the repair and rebuilding of tissues damaged during intense physical encounters. Animal proteins, rich in essential amino acids, serve as the building blocks for new proteins, facilitating the repair of muscle fibres, connective tissues, and even bone structures impacted by the rigours of combat.
Protein Synthesis and Tissue Repair
Protein synthesis is a biological process in which cells generate new proteins. This process is crucial for repairing tissues damaged during physical activity. The body prioritizes repairs based on the severity of the damage and the physiological demands on specific tissues. For example, muscle tissues undergoing frequent and intense use during a fight might receive priority in the repair queue. The synthesis of new protein strands to repair or replace damaged ones is influenced by the availability of amino acids, which are more abundantly and readily available in animal proteins.
Animal proteins contain all nine essential amino acids necessary for human health, making them complete proteins. This completeness is vital for initiating efficient repair processes. After consumption, the body breaks down dietary proteins into their amino acid components, which are then transported to various tissues to support growth, repair, and maintenance processes.
The Advantages of Animal Fats and Proteins
Beyond amino acids, animal proteins often come with associated nutrients, including iron, vitamin B12, zinc, and omega-3 fatty acids, which can contribute to improved recovery times. These nutrients support not only the physical repair processes but also the inflammatory response necessary for recovery, enhancing overall healing.
Animal fats, particularly those from fish and grass-fed meats, provide omega-3 fatty acids, known for their anti-inflammatory properties. In the context of injury recovery, reducing inflammation can be crucial in speeding up the healing process and returning athletes to training and competition more quickly.
Comparison with Plant-based Proteins
While plant-based diets can offer health benefits and are an essential part of a balanced diet, plant proteins are typically incomplete, meaning they lack one or more of the essential amino acids. Athletes, especially those in high-demand sports like UFC, might find it challenging to rely solely on plant proteins for their recovery needs. The bioavailability of nutrients in animal sources is generally higher than in plant sources, meaning the body can absorb and utilize these nutrients more efficiently.
Conclusion
The recovery process is as critical as the training regimen for UFC fighters. Incorporating a diet rich in animal proteins and fats can provide the essential nutrients necessary for efficient tissue repair, reducing recovery times, and maintaining optimal performance levels. While plant-based proteins and diets play a significant role in overall health, the unique benefits of animal proteins in the context of injury recovery and tissue repair cannot be overlooked. Ensuring a balanced intake of these nutrients can help athletes navigate the challenges of recovery, returning stronger and more prepared for the demands of their sport.
All my work UFC articles are hosted at:
References
– “Is This Legal?: The Inside Story of The First UFC from the Man Who Created It” by Art Davie and Sean Wheelock.
– “Total MMA: Inside Ultimate Fighting” by Jonathan Snowden.
– The American Journal of Clinical Nutrition (AJCN)
– “Nutrition and Enhanced Sports Performance: Muscle Building, Endurance, and Strength” by Debasis Bagchi, Sreejayan Nair, and Chandan K. Sen.
–Optimal athletic performance is intricately linked to the principles of meat science, a field that continues to provide vital insights into health and human potential—
My work in meat science started in 2008 when I created a bacon brand. Initially, my goal was to understand my trade. Over the past 16 years, my work changed from purely a meat scientist to incorporating diet, nutrition and a healthy lifestyle.
There is no single aspect of my work that does not find direct application in these areas. The best application is in high-impact sports. One example of this is my work on nitrites in cured meat. What started as a curiosity became a major part of my life, and I debunked the notion that nitrites are bad for humans. I learned that the contrary is true. Nitrites are essential for human health. I learned that nitrites and nitrates are precursors to nitric oxide, being members of the reactive nitrogen species and they are in a real sense like the Father, Son and Holy Spirit in Christianity in that where you have the one, you will always have all three. Over time, I got to know the Texan medical doctor, Dr. Nathan Bryan
The spotlight on the physiologically important molecule of Nitric Oxide was first shone brightly on this compound in 1998 when Dr Ferid Murad, along with his colleagues Dr Robert F. Furchgott and Dr Louis J. Ignarro, who were awarded the Nobel Prize in Physiology or Medicine for their work on it. Their groundbreaking work unveiled nitric oxide as a critical signalling molecule in the cardiovascular system, revolutionizing our approach to cardiovascular health. Their Nobel citation highlighted their discoveries concerning “nitric oxide as a signalling molecule in the cardiovascular system,” a revelation that laid the groundwork for innovative treatments aimed at controlling blood pressure and enhancing blood flow through vessel dilation.
By understanding the process of meat curing, I managed to understand the crucial role it plays in human physiology and the discussion becomes critical in the environment of healthy living and top athletes, particularly in fighting sports. I have done Judo since I was 6 years old, have a first dan and achieved several medals in the South African National Championships over the years. The subject is close to my heart and I understand it!
How Meat Science Meets UFC, the Ultimate in Full-Contact Fighting
Rorion Gracie, bringing his profound Brazilian Jiu-Jitsu (BJJ) training—a martial art refined by the Gracie family from its Judo and Japanese Jiu-Jitsu roots—aimed to demonstrate BJJ’s superiority in real combat. The success of Royce Gracie, Rorion’s brother, in the inaugural UFC tournament, winning against opponents of various fighting backgrounds, solidified BJJ’s efficacy and UFC’s foundational premise: to determine the most effective martial art in situations resembling real combat.
Dr. Nathan Bryan is a protégé of Dr. Ferid Murad and significantly advanced the foundational knowledge established by his mentor and colleagues. Training under the guidance of a Nobel Laureate, Dr. Bryan was uniquely positioned to delve deeper into the multifaceted roles of nitric oxide within the human body. His career has been marked by a fervent pursuit to expand our understanding of NO, exploring its impact far beyond just cardiovascular health.
Dr Nathan Bryan’s research into nitric oxide (NO) transcends the traditional bounds of cardiovascular and immune system health, reaching into the demanding world of high-impact athletes, such as Mixed Martial Arts (MMA) fighters and other top-level competitors. His work on the practical applications of nitric oxide through nutrition and supplementation has unveiled significant benefits for athletes, particularly in areas critical to their performance and recovery.
Athletes, especially those engaged in high-intensity sports are constantly seeking ways to enhance their recovery from the rigorous demands of training and competition. The physical toll of intense workouts, fights, and the inevitable injuries that accompany high-level athletic endeavours necessitates a comprehensive approach to recovery. UFC emerged as the primary arena for me to put my theories to the test. Dr. Bryan’s research into nitric oxide becomes particularly relevant in this arena.
I give you a small taste of what is to come. Nitric oxide plays a pivotal role in several physiological processes vital to athletes, including blood flow regulation, oxygen delivery, nutrient transport, and muscle recovery. By enhancing the body’s natural production of NO through specific dietary choices and supplementation, athletes can experience improved blood flow. This, in turn, facilitates more efficient delivery of oxygen and essential nutrients to stressed or injured tissues, accelerating the recovery process. Improved blood flow also helps in the removal of metabolic waste products, which can reduce muscle soreness and decrease recovery time between intense training sessions and competitions.
Furthermore, Dr. Bryan’s advocacy for lifestyle interventions to boost nitric oxide levels introduces a holistic approach to athlete health and performance enhancement. Through dietary strategies that increase NO production, such as the consumption of nitrate-rich vegetables (e.g., beets, spinach, and arugula) and cured products like bacon and ham and supplementation with NO-boosting compounds, athletes can support their body’s recovery processes naturally and effectively. This nutritional strategy not only aids in the immediate recovery from intense physical exertion but also contributes to the long-term management and prevention of chronic conditions that can impede athletic performance, such as metabolic syndrome, obesity, and diabetes.
UFC as a Prime Example of High-Impact Sport
The Ultimate Fighting Championship (UFC), established in 1993 by Art Davie, Rorion Gracie, and their associates, exemplifies the zenith of high-impact sport, intertwining diverse martial arts disciplines into a singular, unparalleled competition. Rorion Gracie, bringing his profound Brazilian Jiu-Jitsu (BJJ) training—a martial art refined by the Gracie family from its Judo and Japanese Jiu-Jitsu roots—aimed to demonstrate BJJ’s superiority in real combat. The success of Royce Gracie, Rorion’s brother, in the inaugural UFC tournament, winning against opponents of various fighting backgrounds, solidified BJJ’s efficacy and UFC’s foundational premise: to determine the most effective martial art in situations resembling real combat.
Over the years, UFC has introduced the world to fighters of legendary status like Conor McGregor, Khabib Nurmagomedov, and Amanda Nunes, whose names have become synonymous with the sport itself. Moreover, the UFC has seen athletes from other high-contact disciplines step into the octagon, with varying degrees of success, further testament to MMA’s demanding and inclusive nature.
Conclusion
The use of UFC as a prime application of my work is natural and one I like. This rigorous and all-encompassing fighting platform perfectly aligns with the principles of meat science, particularly regarding the role of nutrition in athlete performance and recovery. I am a pragmatic food scientist with nearly two decades of research and study, who navigates through the intertwined realms of food science and athletic performance with unmatched expertise. My narrative, devoid of commercial bias, underscores the profound impact of meat science on athletic recovery and performance, offering a fact-based exploration into optimal nutrition. I did not arrive at my conclusions because someone paid me. I came to my convictions through the rigour of science!
Learning from and interacting with people like Dr Nathan Bryan, who with him brings groundbreaking discoveries by Nobel Laureates such as Dr Ferid Murad, Dr Robert F. Furchgott, and Dr Louis J. Ignarro regarding nitric oxide, serves as a cornerstone for understanding the nuanced relationship between nutrition and peak athletic performance. The UFC’s high-stakes environment underscores the critical role of scientifically grounded nutrition strategies, emphasizing how a diet rich in meats and complemented by specific plant-based foods can propel athletes to superior recovery and performance levels. My insightful journey, drawing from esteemed research and practical applications, showcases the undeniable truth: optimal athletic performance is intricately linked to the principles of meat science, a field that continues to provide vital insights into health and human potential.
Now it’s time to look at how we are going to process the bones and what we are going to do with the resultant broth. First, we need a recipe for the broth.
Ingredients:
100 kg beef bones (mixture of marrow bones, knuckle bones, and meaty bones)
40 liters water
10 kg onions, roughly chopped
5 kg carrots, roughly chopped
5 kg celery stalks, roughly chopped
1 kg leeks, roughly chopped
1 kg garlic cloves, smashed
20 bay leaves
1 bunch fresh thyme
1 bunch fresh parsley
500 g whole black peppercorns
Salt, to taste
Instructions
Preheat the oven to 400°F (200°C). Place the beef bones on large baking sheets and roast them in the oven for about 2 hours, or until they are deeply browned and caramelized.
Transfer the roasted bones to large stockpots or kettles. Add the water, onions, carrots, celery, leeks, garlic, bay leaves, thyme, parsley, and black peppercorns.
Bring the mixture to a boil over high heat, then reduce the heat to low and simmer, partially covered, for at least 24 hours, preferably 48 hours. Skim off any foam or impurities that rise to the surface.
After simmering, strain the broth through fine-mesh sieves or cheesecloth into other large pots or containers. Discard the solids.
Let the broth cool to room temperature, then portion it into clean 20-litre drums for long-term storage. Seal the drums tightly and store them in a cool, dark place or refrigerate them if possible.
Usage of Beef Bone Broth
Once the broth has been created, now we must consider where we will use it.
Sausages: Incorporate the beef bone broth into sausage formulations to enhance flavour and moisture retention. For example, for every 10 kg of ground meat, use 1 kg of beef bone broth in the sausage mixture.
Fresh Meat Products: Use beef bone broth as a liquid component in fresh meat products such as meatballs, meatloaf, and burgers to improve juiciness and flavour. Use approximately 10% of the total meat weight as beef bone broth in these formulations.
Bacon and Hams: Utilize the beef bone broth as a brine solution for curing bacon and hams to add richness and depth of flavour. Replace water with beef bone broth in the brine solution, following standard curing ratios and procedures.
Small Goods and Delicatessen: Use the beef bone broth as a base for soups, sauces, and gravies in the production of small goods such as pâtés, terrines, and sausages. Adjust the amount of broth according to desired flavour intensity and consistency in each recipe.
These applications of beef bone broth will enhance the flavour, moisture, and overall quality of your factory’s products, providing added value and customer satisfaction.
Storage of Broth
The optimal way to store beef bone broth in a freezer is to follow these steps:
Portioning: Divide the broth into manageable portions that are suitable for your production needs. For example, pour the broth into smaller containers or bags, ensuring that each portion is properly sealed to prevent freezer burn and contamination.
Cooling: Allow the broth to cool to room temperature before transferring it to the freezer. Rapid cooling can be achieved by placing the containers in an ice bath or using a blast chiller.
Freezing: Place the sealed containers of broth in the freezer, ensuring they are arranged in a single layer for even freezing. Leave some space between containers to allow for expansion during freezing.
Labelling: Clearly label each container with the date of production and contents to ensure proper inventory management and rotation.
Storage: Store the broth in the coldest part of the freezer, maintaining a consistent temperature of 0°F (-18°C) or below.
Thawing Procedure
When thawing beef bone broth for use in production, follow these steps:
Refrigerator Thawing: The safest method is to transfer the frozen broth from the freezer to the refrigerator and allow it to thaw overnight. This gradual thawing process maintains the quality and integrity of the broth.
Cold Water Thawing: If time is limited, submerge the sealed container of frozen broth in cold water. Change the water every 30 minutes to ensure it remains cold. This method will thaw the broth more quickly than refrigerator thawing but requires more attention to prevent bacterial growth.
Microwave Thawing: Thawing broth in the microwave is not recommended as it can result in uneven heating and potential food safety risks.
Thawing in Production: If immediate use of the broth is required, it can be thawed directly in the production process. Ensure that the broth is heated to a safe temperature (above 165°F or 74°C) to kill any potential bacteria before use.
Storage Duration
Beef bone broth can be stored in the freezer for up to 6 months without significant loss of quality. However, for optimal flavour and freshness, it is best to use the broth within 3 months of freezing. Proper storage and handling practices, such as maintaining a consistent freezer temperature and minimizing exposure to air, will help prolong the shelf life of the broth.
Storage Containers
Storing beef bone broth in sealed drums is a practical and efficient method for long-term storage. Here’s how you can do it:
Portioning: Divide the beef bone broth into manageable portions suitable for your production needs. Pour the broth into food-grade plastic bags or containers that are specifically designed for freezer use.
Sealing: Ensure that each bag or container is properly sealed to prevent leakage and contamination. For bags, use a heat sealer or twist tie to securely close the opening. For containers, use tight-fitting lids that form a complete seal.
Arranging in Drums: Once the broth is portioned and sealed, place the bags or containers inside clean and sanitized 20-litre drums. Arrange them in layers, ensuring that there is sufficient space between each container to allow for proper airflow and freezing.
Labelling: Clearly label each drum with the date of production, contents, and any other relevant information such as batch number or expiration date. This will facilitate proper inventory management and rotation.
Sealing Drums: Seal the drums tightly to prevent air and moisture from entering. Use sealing tape or locking rings to secure the lids in place and ensure a tight seal.
Freezing: Place the sealed drums of beef bone broth in the coldest part of the freezer, maintaining a consistent temperature of 0°F (-18°C) or below.
By storing beef bone broth in sealed drums, you can ensure that it remains fresh and flavorful for an extended period, ready to be used in various meat products whenever needed.
Conclusion
In summary, the discussion surrounding beef bone broth has shed light on its importance in the meat industry, particularly in the production of sausages, fresh meat, bacon, hams, and other small goods. By utilizing a carefully crafted recipe and production process, beef bone broth serves as a versatile ingredient that enhances flavour, moisture retention, and overall quality in various meat products.
The optimal recipe for beef bone broth involves simmering a mixture of beef bones, vegetables, and aromatics for an extended period to extract maximum flavour and nutrients. This rich and flavorful broth can then be stored for long-term use in sealed drums, ensuring its freshness and integrity.
Furthermore, the versatility of beef bone broth extends to its usage in a wide range of meat products, including sausages, fresh meat, bacon, hams, and small goods. Whether used as a liquid component in formulations or as a base for soups, sauces, and gravies, the beef bone broth adds depth of flavour and nutritional value to the final products.
In conclusion, the production, use, and storage of beef bone broth are essential aspects of meat processing operations, contributing to the overall quality and satisfaction of consumers. By following proper recipes, production techniques, and storage practices, meat manufacturers can harness the full potential of beef bone broth to elevate their products and meet the ever-evolving demands of the market.
In this article, I will give an example of how I intend to use the waste products from production. It will go through the production transit freezer and strict SOPs will be attached to it so that every item in this freezer is processed within 7 days of being stored there.
Efficient feedback loops are the lifeblood of any meat plant, ensuring seamless operations across departments. From production to sales, and quality control to food safety, the entire focus of management revolves around optimizing these processes. As someone deeply engaged in managing a meat operation in Nigeria, where resource optimization is paramount, I’ve come to appreciate the importance of utilizing every aspect of the carcass efficiently. This echoes the sentiments of industry pioneers like Phili Armour, who famously remarked that nothing should go to waste in meat processing except the squeal (in the case of pork production; David Graaff’s Armour – A Tale of Two Legends). However, in reflecting on past experiences, I’ve identified a significant area of neglect: the handling of unwanted materials namely the freezers, work-in-progress chillers and re-works.
At Woodys we packed trim away for years which we wanted to use at some future date and never got around to doing that. Same with fat from cutter-bellies we imported. At Van Wyngaardts in Johannesburg, I found even the blast freezer was used as a storage area for junk. Work-in-progress chillers were packed with sausage fillings that had not been filled and blended ham mixtures, mostly in the location for days and even weeks, seriously affecting the end-product quality. The reworks chiller is another area of huge concern. I dealt with the mistakes we made in this regard at Woody’s in Reflections on a Journey: From Memories to Mission. Here I develop a system that will prevent these mistakes.
Utilizing Matrix Software for Optimization
Implementing the Matrix Software system presents an ideal solution to address this issue. By utilizing its capabilities to track and manage every aspect of production, we can ensure that nothing goes to waste. Collaborating with experts like Pierce and Arno from Meat Matrix, we can design systems to effectively manage freezers and chillers, minimizing the storage of unwanted materials and maximizing efficiency. More important than the software is the thinking and the processes that must be designed and implemented. The software is a tool, but the work must begin with us!
Requirements and Specifications
In detailing my requirements for the Matrix Software system, I emphasize the need for comprehensive tracking and management protocols for freezers, blast freezers, work-in-progress chillers, and rework chillers. Each aspect must be meticulously documented, including recipes, production timelines, storage conditions, and responsible personnel. Drawing on studies such as “Optimal Storage Practices for Beef Bones: Ensuring Quality for Future Processing” and “Comprehensive Guidelines for Freezer Maintenance,” we can establish best practices to ensure product quality and safety (Smith, J., 2020; Jones, R., 2018).
I write the following to capture my own thoughts on the matter while it is fresh in my mind and to give to Pierce and Arno from Matrix Sofware so that I can see what capabilities the system has at the moment to accommodate what I require with the relevant daily and weekly reports along with some direction on what can be future QC and management direction in this matter. The power of their system is that every item is tagged, its ability to create batches and combine and take things apart from a single carcass tag, make multiple tasks for the product of deboning and portioning and keep full control and traceability by placing every item in an appropriate cost centre and new location.
Here are my requirements:
Freezers: In terms of freezers: everything that goes into the freezer must have
a recipe attached to it (what are we doing with it),
a production time of 7 days (when must something be done with them)
what condition can it be stored to ensure it remains within the best possible condition for processing?
how was it packed? (best method for quick freezing)
at what temperature must it come out
How are we going to control the freezing time/ monitor it?
Who is responsible for this?
Work in Progress Chillers: The following applies.
what is going in?
why is it going in?
how long must it stay there?
FIFO??
how are the items packed?
airflow (how can products be guarded against excessive airflow and possible negative impacts such as drying?)
who is responsible for managing the chillers?
Rework Chillers:
traceability
expiry dates
salt content and other ingredients such as preservatives
what is the intended recipe attached to everything in the chiller?
intended time frame to be clearance from the chiller (what is the SOP)
who is responsible for the chiller
should it be a chiller or a freezer?
Creating Standard Operating Procedures (SOPs)
Furthermore, these requirements must be translated into Standard Operating Procedures (SOPs) to provide clear guidelines for staff. SOPs will outline procedures for inventory management, temperature monitoring, and product rotation, ensuring consistency and adherence to quality standards (EarthwormExpress, 2023).
Feedback Loops and Optimization
While feedback loops typically exist in areas like sales and production, creating feedback mechanisms for freezer management is equally crucial. Through the Matrix Software system, we can establish feedback loops to monitor and optimize freezer usage, minimizing waste and maximizing profitability.
Time Frame and Efficiency
Setting a time frame for clearing unwanted stocks is essential, with a focus on weeks rather than months. Understanding key ratios, such as the 10% rule for formulation adjustments, allows for efficient utilization of resources and minimizes waste (EarthwormExpress, 2023).
Conclusion
In conclusion, my journey in the meat industry has taught me valuable lessons about efficiency, optimization, and the importance of leveraging technology to maximize productivity. As Wynand Nel from Eskort once welcomed me to work every morning at 5:45 when I reported for work, when we worked together at Stcoks Meat Market with the words “Welcome to the real world!”, I’m reminded that true wisdom lies in mastering both the technical aspects of the trade and the intricacies of human behaviour in line with the right focus areas. Freezers and chillers are a key focus area for profitability as is planning, SOPs and standards!
The risk of nitrites is to a large extent dose dose-dependent and in the well-regulated meat industry, minuscule amounts are used as an effective way to protect us from potentially deadly bacteria. In the dosages that it’s used in meat curing, nitrites are healthy! To understand why, we begin by looking at the mucosa and gastric mucosa in particular.
Gastric Mucosal and Its Health
“Mucosal” refers to anything pertaining to the mucosa, which is a type of membrane that lines various cavities in the body and covers the surface of internal organs. These membranes produce mucus, a thick protective fluid. The mucosa is found in several parts of the body, including the digestive tract (from the mouth to the anus), the respiratory tract, the urogenital tract, and the eyes (in the form of conjunctiva).
Gastric mucosal integrity refers to the health, structure, and function of the stomach lining, which plays a critical role in protecting the stomach’s inner layers from the harsh acidic environment. Humans have high acidity levels in their stomachs, similar to vultures to deal with harmful bacteria that scavengers typically consume. This is a clue to our past when humans existed as scavengers. The stomach lining, or gastric mucosa, is composed of a thick layer of mucus, bicarbonate, epithelial cells, and tight junctions between these cells, all of which contribute to its integrity and function. This protective barrier is essential for several reasons:
Protection Against Acid: The stomach produces hydrochloric acid (HCl) to aid in digestion. Gastric mucosal integrity ensures that this potent acid does not damage the stomach’s own tissues.
Enzyme Activity: The gastric mucosa contains cells that produce digestive enzymes, such as pepsinogen, which is activated into pepsin by stomach acid. A healthy mucosa allows for the proper functioning of these enzymes in digesting proteins.
Mucus Production: Mucus-secreting cells in the gastric mucosa produce a thick, bicarbonate-rich mucus that coats the stomach lining, providing a physical barrier against acid and digestive enzymes and preventing damage to the lining.
Tissue Repair and Renewal: The gastric mucosa has a high turnover rate, with cells being rapidly replaced to repair any damage from the acidic environment. Maintaining the integrity of the mucosa is crucial for this continual process of renewal and repair.
Prevention of Ulcers and Erosions: By protecting the stomach lining from acid-induced damage, a healthy gastric mucosal barrier prevents the development of ulcers (deep sores) and erosions (shallow breaks).
Defensive Mechanisms: Beyond physical and chemical barriers, the gastric mucosa also plays a role in immune defence, hosting immune cells that help prevent infection by pathogens that may enter the stomach with ingested food.
Thus, maintaining the integrity of the gastric mucosa is vital for digestive health and overall well-being.
Secretion of Gastric Juices: It contains glands that produce gastric juices, which include hydrochloric acid (HCl) to lower the stomach’s pH, enzymes like pepsin to initiate the digestion of proteins, and intrinsic factors essential for the absorption of vitamin B12.
Production of Mucus: The gastric mucosa secretes a thick layer of mucus that coats the stomach lining. This mucus is rich in bicarbonate ions, creating a neutralizing layer that protects the mucosa from the acidic gastric juice, preventing self-digestion.
Barrier Function: The integrity of the gastric mucosa acts as a barrier against mechanical, chemical, and bacterial insults. This is crucial for preventing damage from the highly acidic gastric environment.
Absorption: While the stomach is primarily a site of digestion, the gastric mucosa also absorbs certain substances, such as water, electrolytes, and some drugs like aspirin and alcohol.
Immune Function: The gastric mucosa contains immune cells that are part of the gut-associated lymphoid tissue (GALT). These cells help to defend against pathogens ingested with food.
Factors that can compromise gastric mucosal integrity include chronic use of nonsteroidal anti-inflammatory drugs (NSAIDs), excessive alcohol consumption, Helicobacter pylori infection, chronic stress, and certain diseases. A compromised gastric mucosa can lead to gastritis (inflammation of the stomach lining), peptic ulcers, and an increased risk of gastric cancer.
Endogenous and Dietary Sources of Nitric Oxide
This leads us to the discussion of the benefits of nitrites because nitrites lead directly to the formation of nitric oxide especially in an environment of high acidity as found in the human stomach. Nitric oxide directly impacts the health of the stomach lining. The source of Nitric Oxide is twofold. On the one hand, it is produced endogenously by gastric mucosa cells through nitric oxide synthase (NOS) enzymes and on the other hand, it comes from dietary nitrates and nitrites. NO generally plays a vital role in maintaining gastric mucosal integrity and modulating blood flow, underlining the importance of NO in gastric health.
Let’s look at the two ways that nitric oxide is produced more closely.
-> Endogenous Production
The body produces nitric oxide through two primary pathways: the enzymatic conversion of L-arginine into NO by nitric oxide synthase (NOS) enzymes, and the non-enzymatic reduction of dietary nitrates and nitrites. In the stomach, NO can be produced endogenously by the cells of the gastric mucosa, including endothelial cells and certain types of gastric epithelial cells, through the action of NOS enzymes. This endogenous NO plays a direct role in maintaining gastric mucosal integrity, modulating blood flow, and other protective functions.
-> Dietary Sources
Additionally, dietary nitrates and nitrites, found in certain vegetables and processed meats, can be converted into NO within the stomach. This conversion process is facilitated by the acidic environment of the stomach, where nitrates and nitrites can be reduced to nitric oxide. This NO can then exert local effects, including the modulation of mucosal blood flow and protective actions against mucosal damage.
-> Systemic vs. Local Effects
While NO produced systemically (i.e., in the bloodstream and tissues outside the stomach) has widespread effects on blood vessel dilation and cardiovascular health, the NO produced locally in the stomach primarily affects the gastric lining. This local production of NO is crucial for the specific benefits mentioned, such as protecting the mucosal integrity, regulating blood flow to the mucosa, and influencing gastric motility.
Therefore, the benefits of nitric oxide to the lining of the stomach can be attributed to both endogenously produced NO by the stomach’s own cells and NO generated from dietary nitrates and nitrites within the stomach’s environment. These mechanisms highlight the significance of nitric oxide in maintaining gastric health and preventing disorders such as gastritis and peptic ulcers.
Nitric oxide (NO) has several beneficial effects on the gastrointestinal tract, including the lining of the stomach, due to its roles in various physiological processes. Here are some key benefits:
I give the benefits of NO but I categorise the effects as stemming from local production within the stomach which is derived from dietary sources such as cured meats or systemic effects throughout the body, and noting which benefits are derived from both:
— Regulation of Blood Flow (Local and Systemic)
Local: Nitric oxide locally produced in the stomach’s mucosal cells induces vasodilation, enhancing blood flow to the gastric lining. This local effect is critical for the repair and maintenance of the gastric mucosa and for the efficient transport of nutrients and oxygen.
Systemic: Systemically produced NO also plays a role in overall vascular health, promoting blood flow throughout the body, including the gastrointestinal tract. This systemic action supports the local effects of maintaining gastric health.
— Protection of Mucosal Integrity (Local)
Local: NO’s role in protecting the gastric mucosa is primarily local. It defends against damage from acidic gastric juices and protects against ulcer formation by promoting mucus production. This action creates a protective barrier between the stomach lining and the acidic environment.
— Anti-inflammatory Effects (Local and Systemic)
Local: Locally produced NO within the stomach lining has anti-inflammatory properties that reduce inflammation, crucial for preventing and healing gastritis and ulcers.
Systemic: NO produced in other parts of the body contributes to a general anti-inflammatory response that can also benefit gastric health by reducing systemic inflammation that could otherwise affect the stomach.
— Modulation of Gastric Motility (Local)
Local: The modulation of gastric motility by NO is a local effect. NO acts as a neurotransmitter in the enteric nervous system, influencing the relaxation of smooth muscle in the gastrointestinal tract, thereby regulating gastric emptying and intestinal transit time.
— Antimicrobial Activity (Local)
Local: The antimicrobial properties of NO in the stomach are a local phenomenon. NO helps defend against pathogenic bacteria in the stomach, maintaining a healthy balance of gut flora and protecting the stomach lining from infections that could lead to gastritis or ulcers.
— Healing and Repair (Local and Systemic)
Local: In the stomach, NO directly contributes to the regeneration of the gastric mucosa following injury or irritation. This local effect is crucial for healing ulcers and preventing chronic gastric diseases.
Systemic: Systemic production of NO can support overall tissue repair and healing processes throughout the body, indirectly benefiting gastric health by promoting a conducive environment for healing.
By categorizing the effects of nitric oxide into local and systemic actions, it becomes clear how NO’s diverse roles are crucial for both the direct maintenance of gastric health and its contribution to overall physiological well-being. The value of cured meat is undeniable because of its nitrite content coupled with the ascorbate (vitamin C) which is always added wherever nitrite is used for curing.
The Chemistry of Amines, Nitrites, and Ascorbate
We have previously considered the fact that combining nitrite with ascorbate in cured meat formulations mimics the occurrence of nitrate in leafy green vegetables where it co-exists with vitamin C. It decisively mitigates the risk of nitrosamine formation in the cured meats and when ingested together when I summarised some of my work in EarthwormExpress in The Role of Ascorbate in the Nitrate-Nitrite-Nitric Oxide Pathway: Integrating Insights from Earthworm Express.
I deal with the history of the nitrosamine controversy as it impacted bacon production and the mandatory inclusion of vitamin C in curing brines in Chapter 15.06 of Bacon & the Art of Living, Regulations of Nitrate and Nitrite post-1920’s: The Problem of Residual Nitrite. The relevance of repeating the discussion within the context of the physiological value of nitrite in the human stomack is that this reaction, nitrites and Vitamin C, is what created nitric oxide from nitrite. Yes, it also prevents nitrosamine formation, but as I have explained in “The Low Risk of Nitrosamine and Amine Formation in Bacon: Temperature Evaluation” amines are unlikely to be formed from frying bacon and even if amines should be foemed in miniscule concentrations, vitamin C will prevemt the reaction with nitrosamines. In the reamining part of this article I will say a few more things about this reaction. The overwhelming different note to this particular article is the emphasis on the fact that nitrites is beneficial! Its beneficial nature stems from its marriage with Vitamin C in the cured meat brine, as it is in leafy green vegetables as well as the elevated acidity levels we have as humans with the birth of our evolutionary path, as scavangers.
A question comes up related to the reaction in the stomack between amines, vitamin C and nitrites which I want to adress briefly.
When ingested together, ascorbate prefers to react with nitrites, forming nitric oxide rather than allowing nitrites to interact with amines to create potentially harmful nitrosamines. This preference is due to ascorbate’s reducing properties, showcasing its protective role in the diet. The question comes up as to why the reaction of vitamin C is with nitrite and not also with the amines.
When ingested together, ascorbate (vitamin C) reacts with nitrites before amines do due to its strong reducing properties. Ascorbate is a potent antioxidant, meaning it can readily donate electrons to other molecules. Nitrites, under acidic conditions (such as those in the stomach), can form nitrosating agents, which are capable of reacting with amines to form nitrosamines. Nitrosamines are concerning because some are carcinogenic. However, the presence of ascorbate inhibits the formation of nitrosamines by reducing nitrite to nitric oxide, thereby preventing the nitrites from reacting with amines to form nitrosamines.
The reaction between ascorbate and nitrite is favoured first due to the redox potential of ascorbate, which makes it a preferred electron donor in the presence of nitrite, reducing nitrite to nitric oxide and other non-harmful molecules before the nitrite has a chance to interact significantly with amines to form nitrosamines.
As for the reaction between amines and ascorbate, under normal dietary conditions, this interaction is minimal and not of significant concern. Amines and ascorbate do not readily react with each other in the body under normal conditions. Ascorbate, through its reduction of nitrites and its role as an antioxidant, primarily acts to prevent harmful reactions rather than engage in direct reactions with amines.
Conclusion
The exploration of nitrites, their role in the diet, and their impact on health as delineated in “Navigating Nitrites: Understanding Their Role in Diet and Health” and subsequent articles and YouTube posts, presents a nuanced view of this often misunderstood compound. By delving into the historical context, the biochemical pathways, and the balance between potential risks and benefits, this body of work highlights the complexity of dietary nitrites. It challenges prevailing perceptions, particularly concerning nitrosamines and their association with cancer risk, and illuminates the positive aspects of nitrite consumption within regulated limits. The discussion extends beyond the confines of nitrites alone, considering the broader implications for food safety, nutritional science, and public health. It underscores the importance of a balanced perspective that acknowledges both the protective measures inherent in our dietary practices and the evolutionary adaptations that have shaped human interaction with food. This comprehensive analysis not only contributes to the scholarly discourse on nitrites but also offers practical insights for consumers seeking to make informed dietary choices.
“EarthwormExpress.” Insight into the historical use and dietary significance of nitrites.
“The Role of Ascorbate in the Nitrate-Nitrite-Nitric Oxide Pathway: Integrating Insights from Earthworm Express.” Analysis of ascorbate’s role in mitigating nitrosamine formation.
“Savouring the Safety: The Evolutionary Journey of Nitrosamine Risk Mitigation in Bacon.” Evolutionary perspective on dietary changes and nitrosamine risks.
“Bacon is Safe: Evaluating Frying and Perspectives from Evolution.” Examination of cooking practices and their implications for nitrosamine formation.
“Amines, Nitrosamines, Nitrite, and Bacon as a Superfood.” Discussion on the nutritional benefits of bacon when considering nitrite content and potential health risks.
“Balancing Gut Acidity, Diet, and N-Nitrosamine Risks.” Exploration of dietary factors influencing gut health and nitrosamine risk.
Hord, N.G., Tang, Y., Bryan, N.S. “Food sources of nitrates and nitrites: the physiologic context for potential health benefits.” American Journal of Clinical Nutrition, 2009.
Lundberg, J.O., Weitzberg, E., Gladwin, M.T. “The nitrate-nitrite-nitric oxide pathway in physiology and therapeutics.” Nature Reviews Drug Discovery, 2008.
Sindelar, J.J., Milkowski, A.L. “Human safety controversies surrounding nitrate and nitrite in the diet.” Nitric Oxide, 2012.
Tsoukalas, D., Fragoulakis, V., Sarandi, E., Docea, A.O., Papakonstantinou, E., Tsilimidos, G., Tsatsakis, A.M., Calina, D., Drakoulis, N. “Dietary Intake of Nitrate and Nitrite and Risk of Colorectal Cancer: A Systematic Review and Meta-Analysis of Prospective Studies.” Cancer Epidemiology, Biomarkers & Prevention, 2019.
This list includes a mix of primary research articles, reviews, and the author’s own publications to provide a comprehensive foundation for the conclusions drawn in the paper.
How does ascorbate or Vitamin C prevent nitrite from reacting with secondary amines to form nitrosamines which can be cancer-causing? The meat curing industry uses ascorbate wherever nitrite is used, thus mimicking conditions in leafy green vegetables.
More than this, the interplay between dietary components and physiological mechanisms has profound health implications, exemplified by the nitrate-nitrite-nitric oxide (NO) pathway. This pathway highlights the significance of diet in regulating bodily functions and showcases the potential of dietary elements to influence the synthesis of essential signalling molecules like nitric oxide. Ascorbate, or vitamin C, plays a pivotal role in this context, acting as a key agent in the reduction of nitrite to nitric oxide. This article integrates insights from Earthworm Express to further explore the biochemical reactions facilitated by ascorbate and the broader implications of the nitrate-nitrite-NO pathway for health.
Ascorbate’s Role in Nitrite Reduction
Ascorbate acts as a powerful reducing agent, catalyzing the conversion of nitrite (NO2-) into nitric oxide (NO). This reaction, essential for numerous physiological functions, involves the donation of electrons by ascorbate to nitrite, yielding NO, dehydroascorbate, and water.
The reaction between nitrite (NO₂⁻) and ascorbate (vitamin C, C₆H₇O₆⁻) can be represented as:
In this reaction, nitrite (NO₂⁻) reacts with ascorbate to produce nitric oxide (NO), dehydroascorbic acid (C₆H₆O₆), and water (H₂O). This process is significant in the context of meat curing, where nitrite serves as a preservative and colouring agent and can react with ascorbate added to the meat product to enhance colour formation and stability, as well as potentially contribute to the formation of nitric oxide, which has various biological effects.
Regarding the form in which nitrite exists in the stomach, it can be present as both NO₂⁻ and HNO₂ (nitrous acid), depending on the pH of the environment. In the acidic conditions of the stomach (pH ≈ 2), nitrite can be protonated to form nitrous acid (HNO₂).
In the realm of food science, particularly in meat curing processes, the inclusion of ascorbate accelerates this conversion, enhancing both the preservation efficacy colour and development of meat products. Earthworm Express provides practical insights into this application, emphasizing the importance of ascorbate in enhancing the quality and safety of cured meats.
The Nitrate-Nitrite-Nitric Oxide Pathway Explained
The pathway is a crucial biological process through which dietary or endogenously produced nitrate and nitrite are converted into nitric oxide. Serving as an auxiliary to the classical L-arginine-NO synthase pathway, it offers a vital mechanism for NO synthesis, especially under oxygen-limited conditions.
1. Dietary Intake and Conversion – The process begins with the intake of nitrate-rich foods, leading to the conversion of nitrate to nitrite by oral bacteria, a critical step for NO synthesis.
2. Formation of Nitric Oxide – Nitrite is then reduced to NO either enzymatically in tissues or non-enzymatically in acidic conditions, with ascorbate playing a significant role in facilitating this reduction.
Physiological Value of Nitrite
Contrary to its historical perception as an inert by-product or health hazard, nitrite is now recognized for its crucial physiological roles:
– Vascular Health: As a regulator of vascular tone and blood pressure, nitrite-derived NO plays a key role in cardiovascular health.
– Cytoprotection: Nitrite offers protection against ischemia-reperfusion injury by acting as a NO reservoir.
– Oxygen Delivery: It ensures efficient oxygen utilization in hypoxic tissues through vasodilation.
– Immune Function: The antimicrobial properties of NO, generated from nitrite, are essential for immune response.
Conclusion and References
The ascorbate-mediated reduction of nitrite to nitric oxide within the nitrate-nitrite-NO pathway demonstrates the complex interactions between diet, biochemistry, and physiology. This pathway not only underscores the biological importance of nitrite but also highlights the therapeutic potential of dietary nitrate and nitrite in cardiovascular and metabolic health management. The insights from Earthworm Express enrich our understanding of these processes, particularly in the context of food science and meat curing.
References:
1. **Earthworm Express**: Provides comprehensive insights into the practical applications of ascorbate in meat curing processes, emphasizing its role in enhancing meat quality and safety.
2. **Journal of Biological Chemistry**: Discusses the biochemical mechanisms by which ascorbate reduces nitrite to nitric oxide and the implications for human health.
3. **Circulation Research**: Explores the physiological and therapeutic potential of the nitrate-nitrite-nitric oxide pathway, particularly in cardiovascular health.
4. **Meat Science**: Offers an overview of the role of dietary components in meat curing and preservation, highlighting the importance of nitrite and ascorbate.
This integration of knowledge from various sources, including Earthworm Express, provides a comprehensive view of the significance of the nitrate-nitrite-NO pathway and ascorbate’s role within it, offering valuable insights into both the biological and practical applications of these processes.
The potential health risks associated with consuming processed meats like bacon have been a topic of discussion and research for many years. Central to these concerns are nitrosamines and amines, compounds that can form during the cooking process and have been linked to various health issues, including cancer. However, a closer examination of the cooking temperatures typically used for frying bacon suggests that the risk of forming harmful levels of these compounds may be lower than commonly perceived.
Temperature and Amine Formation
Amines and heterocyclic amines (HCAs) are formed when meat is cooked at high temperatures. Research indicates that HCAs begin to form at cooking temperatures exceeding 150°C (300°F), with a significant increase in formation above 200°C (392°F). The highest concentrations of these compounds are found in meats cooked at temperatures over 300°C (572°F), a range that includes intense grilling or barbecuing methods. These compounds arise from reactions between amino acids, sugars, and creatine or creatinine found in muscle meat, and their formation is influenced by cooking temperature, duration, and the type of meat being cooked.
Actual Frying Temp of Bacon
In contrast, the typical frying temperature for bacon ranges from 190°C to 200°C (375°F to 390°F). This temperature range is optimal for cooking bacon to a desired level of crispiness without excessively high temperatures that would significantly increase the formation of HCAs or nitrosamines. Furthermore, the preparation and cooking process for bacon often includes the addition of antioxidants such as ascorbic acid (vitamin C), which are known to inhibit nitrosamine formation. This precautionary measure significantly reduces the potential health risks associated with nitrosamine consumption.
Given the controlled cooking temperatures and the preventative measures taken during bacon preparation, the risk of forming harmful levels of nitrosamines and amines in bacon is considerably lower than in meats subjected to higher cooking temperatures.
Conclusion
In conclusion, while concerns regarding nitrosamine and amine formation in processed meats are valid, the specific case of bacon, when cooked at recommended temperatures and with added antioxidants, presents no risk.
References
Food Safety and Inspection Service. Cooking methods and temperature effects on the formation of amines and heterocyclic amines in meats. USDA.
National Cancer Institute. Chemicals in Meat Cooked at High Temperatures and Cancer Risk. Cancer.gov.
Skog, K.I., Johansson, M.A.E., Jägerstad, M.I. “Heterocyclic Amines in Grilled and Oven-broiled Meats: Implications for Cancer Risk.” Cancer Research.
Turesky, R.J. “Formation and Biochemistry of Carcinogenic Heterocyclic Aromatic Amines in Cooked Meats.” Toxicology Letters.
This article leverages findings and guidelines from authoritative sources such as the USDA and the National Cancer Institute, alongside research published in peer-reviewed journals, to provide a comprehensive overview of the risks associated with nitrosamine and amine formation in bacon.
