Protein is an important component of all cells and tissues of the human body. All the important components of the body need to be involved in protein. Generally speaking, protein accounts for about 18% of the total mass of the human body, and the most important thing is that it is related to life phenomena.
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What is the difference between plant protein and animal protein?
From the perspective of protein molecules, proteins are a peptide chain (primary structure) connected by amino acids. The peptide chain forms a helix or fold (secondary structure), and further winds to form a group (tertiary structure). Various groups are combined in a certain pattern (quaternary structure). The secondary structure of plant proteins is dominated by β-sheets, while animal proteins are dominated by α-helices. From the state of protein in food, vegetable protein is often combined with carbohydrates (non-starch polysaccharides and dietary fiber), while animal protein mainly coexists with fat.
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What are the advantages and disadvantages of plant protein?
Of all plant sources, wheat provides the most protein in the human diet. The protein content of cereals and foods made from cereals is in the range of 7-15%, which is generally lower than animal protein foods. Wheat gluten, extracted from wheat, is a by-product of starch production. The protein content of gluten is as high as 75-80%, and it can be added to various foods. It is what we commonly call "gluten". However, although gluten can provide us with protein, it can also cause celiac disease in some people.
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