Alexei Volkov
Cattle bones are cheaper than plastic because they are often treated as waste products after slaughter, with meat being the primary focus for most consumers. Cattle bones account for 10-20% of the animal's weight, and while they are a valuable source of nutrition and have various industrial applications, they are underutilized. The demand for bone broth and certain cuts of meat has increased prices, but cattle bones are still generally affordable. Plastic, on the other hand, is derived from petroleum, a non-renewable resource with a higher economic value.
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What You'll Learn
Cattle bones are a valuable source of nutrition
Cattle bones are also a good source of nutrition for animals, especially poultry. A study on the nutritive value of supplemental bone meal in diets for laying quail showed that quail fed diets supplemented with bone char produced heavier egg shells and had higher dry tibia bone mass. Bone char also had better digestibility of crude ash. The study concluded that bone char had a higher nutritive value and greater potential as a natural source of phosphorus in local feed fortification.
In addition to their nutritional value, cattle bones can also be used to produce bioplastics. A team from Clemson University engineered a bioplastic from a combination of meat and bone meal. This bioplastic has the added advantage of deactivating the infectious agent that causes Mad Cow Disease. While a combination of bioplastic and conventional plastic may not be the most sustainable solution, it can help reduce the need for petroleum feedstock in manufacturing.
Despite their nutritional value and potential for alternative uses, cattle bones often go underutilized and create disposal problems and environmental concerns. However, with proper thermal processing to eliminate unpleasant odors and kill pathogens, cattle bones can be safely used as a valuable source of nutrition and for other purposes.
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Cattle bones are used in medicine
Cattle bones have been used to create bioplastics, which can be used to manufacture a wide variety of items. This bioplastic is made from a combination of meat and bone meal. This process has the added benefit of deactivating the infectious agent that causes bovine spongiform encephalopathy, also known as Mad Cow Disease. This new bioplastic can be mixed with polyethylene plastic without significantly reducing its durability.
Cattle bones are also used in medicine. Cartilage helps make medicine for osteoarthritis sufferers, and the lungs are used in blood thinners like heparin. Additionally, collagen, which is derived from the hide, is purified and injected into the face in plastic surgery to create a younger look. However, the most common use of collagen is in food products such as gelatin, which is made by boiling cow bones and hide and gives a gummy texture to sweets like marshmallows, caramels, and gummies.
Only 60% of a cow is used for food, and the remaining 40% ends up in various places and products. For example, the adrenal glands are used in steroid drugs, and cattle leftovers are used in plastic surgery.
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Cattle bones are used in cosmetics
The use of cattle bones in cosmetics is controversial due to concerns about animal cruelty and slaughterhouse practices. With the rise of vegetarianism and veganism, consumers are becoming more aware of the animal by-products used in cosmetics and are demanding more transparency from cosmetic companies. However, economics plays a role in the continued use of animal derivatives in cosmetics, as the meat industry is a multi-billion-dollar business with high demand and volume.
In addition to gelatin, other animal derivatives used in cosmetics include keratin, a protein derived from animal horns, hooves, feathers, and hair. Keratin is added to shampoos, nail polish, and face creams to strengthen hair, nails, and skin. Collagen, derived from animal tendons, bones, ligaments, and skin, is also used in anti-aging facial creams and hair care products.
While there are alternatives to using cattle bones in cosmetics, such as carrageen, seaweed, and pectin from fruits, the high demand and profitability of the meat industry make it challenging to find less cruel sources for cosmetic ingredients.
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Cattle bones are used in industrial raw materials
Cattle bones are often treated as waste after slaughter, with meat being the primary focus for most consumers. However, the processing of animal bones can create valuable materials that can be used in various industrial applications.
Bone processing equipment, such as bone crushing and grinding machines, can transform animal bones into valuable resources. This process has been studied intensively, and it is known that bones contain a similar protein and fat content to meat, as well as other nutrients. The resulting bone paste and bone powder can be used as alternatives to meat or added to meat-based products to enhance their nutritional value and flavour.
The derivative products of cattle bones have a wide range of applications, including industrial raw materials. For example, bone meal can be used in the production of bioplastics, which can be mixed with conventional plastics to create a more sustainable alternative. This reduces the need for petroleum feedstock in manufacturing. Additionally, cattle bones can be used to produce gelatin, which is utilised in food, cosmetics, pharmaceuticals, and medical devices.
The rendering process plays a crucial role in transforming raw waste materials from the animal industry into valuable products. During rendering, the inedible parts of slaughtered cattle are transported to a rendering plant, where they are ground, cooked, and pressed into meat and bone meal. This process not only produces valuable materials but also helps prevent economic losses and environmental issues that would arise from disposing of these waste products in landfills.
In summary, cattle bones, when properly processed, can become valuable industrial raw materials. They can be utilised in the production of bioplastics, gelatin, and various nutritional and flavour-enhancing products. The rendering process is key to transforming these waste materials into stable and safe-to-use resources, contributing to both economic and environmental sustainability.
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Cattle bones are used in bioplastics
The idea of using cattle bones in bioplastics may seem unusual, but it is a viable option that has been explored by researchers. This concept has gained attention due to the growing waste disposal problem associated with increasing cattle populations. With the onset of the Mad Cow Disease scare in the late 1990s, certain practices, such as using cattle carcasses to make food for domestic animals, had to be discontinued. As a result, large quantities of cattle parts ended up in landfills.
To address this issue, scientists from Clemson University proposed a novel solution: converting cattle bone meal into bioplastic. This process not only helps reduce waste but also offers a transitional material that can decrease the reliance on petroleum feedstock in manufacturing. By combining meat and bone meal, the Clemson team engineered a bioplastic that can be mixed with ultra-durable polyethylene plastic without compromising its strength. This innovation opens up the possibility of incorporating bone meal into high-durability products like skis and snowboards.
The use of cattle bone meal in bioplastics has additional benefits. The plastic-making process deactivates the infectious agents responsible for Mad Cow Disease, enhancing the safety of the final product. Furthermore, this approach contributes to sustainability by utilizing waste products instead of relying solely on petroleum-based chemicals. While a combination of bioplastic and conventional plastic may not be the most sustainable long-term solution, it can serve as a transitional step toward more eco-friendly practices.
Despite the potential advantages, there are concerns about the use of bone meal in bioplastics. Some critics argue that bone meal is rich in fluoride, which could contribute to increased fluoride levels in individuals if applied to gardens or farms. Additionally, the idea of using ground-up animal parts in products like snowboards may not appeal to all consumers. Nevertheless, the concept of cattle bone bioplastics presents an intriguing opportunity to address waste disposal issues and reduce the environmental impact of plastic production.
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Frequently asked questions
Cattle bones are cheaper than plastic because they are a waste product of the meat industry. Bones account for 10-20% of an animal's body weight, and while they are nutritious and have industrial uses, they are often discarded. Cattle bones are also cheaper than plastic because they do not require the same level of processing as plastic, which is derived from petroleum.
Only about 60% of a cow is harvested for food. The remaining 40% ends up in surprising places, like cosmetics, medicine, and even jet fuel.
Bone processing is the use of equipment such as bone crushing machines and bone paste grinding machines to turn animal bones into valuable materials.
Bone processing reduces waste and has environmental benefits. It can also be profitable, as bone derivatives are used in multiple areas, including condiments, health-care products, nourishment, animal feeds, and industrial raw materials.
Bones have become more expensive due to increased demand for products like bone broth, as well as general inflation and issues with supply chains.
