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Types Of Amino Acids

Nov 17, 2021

Amino acids are a class of organic compounds containing amino and carboxyl groups, the chemical formula is RCHNH2COOH. Amino acids are one of the many bioactive macromolecules that make up a biological organism, which are the basic materials for constructing cells and repairing tissues. It is used by the body to make antibody proteins, hemoglobin, enzymes, and hormones to maintain and regulate metabolism.

Up to more than 100 amino acids are known to be isolated from various natural sources, but the amino acids that make up human proteins are only over 20, while to adapt to the needs of human metabolism, people have to take the human required amino acids from food.

amino acids

Among the more than 20 kinds of amino acids that constitute human protein, most of them can be synthesized directly in the human body or transformed from other amino acids, which are called non-essential amino acids; A few are that the human body cannot synthesize or the synthesis speed is slow, which can not meet the needs of metabolism. They must be supplied by the protein in food, which is called an essential amino acid. There are 8 kinds of essential amino acids, namely lysine, threonine, leucine, isoleucine, valine, methionine, tryptophan, and phenylalanine; In addition, the amount of arginine and histidine synthesized by the human body does not meet its own needs, and it also needs to take part from food, which we call semi-essential amino acids of the human body.


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