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Chemically, both fats and oils are composed of triglycerides. [2] [3] Although many animal parts and secretions may yield oil, in commercial practice, oil is extracted primarily from rendered tissue fats from livestock animals like pigs, chickens and cows. Dairy products yield animal fat and oil products such as butter.
Rendering is a process that converts waste animal tissue into stable, usable materials. Rendering can refer to any processing of animal products into more useful materials, or, more narrowly, to the rendering of whole animal fatty tissue into purified fats like lard or tallow. Rendering can be carried out on an industrial, farm, or kitchen scale.
Scholarly, the term animal source foods (ASFs) has been used to refer to these animal products and by-products collectively. [6] In international trade legislation, the terminology products of animal origin (POAO) is used for referring to foods and goods that are derived from animals or have close relation to them. [7]
Animal fats are largely saturated fat, the experts note. “These are typically solid at room temperature,” says Beal. Some animal fats contain a small amount of monounsaturated fats, Beal adds.
Some animal products, like beef and dairy products made with whole or reduced fat milk like yogurt, ice cream, cheese and butter have mostly saturated fatty acids (and some have significant contents of dietary cholesterol). Other animal products, like pork, poultry, eggs, and seafood have mostly unsaturated fats
In this context, tallow is animal fat that conforms to certain technical criteria, including its melting point. Commercial tallow commonly contains fat derived from other animals, such as lard from pigs, or even from plant sources. Tallow consists mainly of triglycerides (fat), whose major constituents are derived from stearic and oleic acids.
This is a $7.5 billion global industry compared to the $1.4 trillion animal meat industry. Meat analog products like ours have only been in-market for less than a decade and at mass in just the ...
Lard is a semi-solid white fat product obtained by rendering the fatty tissue of a pig. [3] [4] It is distinguished from tallow, a similar product derived from fat of cattle or sheep. Lard can be rendered by steaming, boiling, or dry heat.