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Amino acid details
Amino acid is a general term for a class of organic compounds containing amino and carboxyl groups. The basic component unit of biological functional macromolecular protein is the basic material that constitutes the protein required by animal nutrition. Efficacy and function: nourish the liver, protect the liver, improve immunity and enhance memory.
Amino acids are colorless crystals with a melting point of more than 200 ℃, which is much higher than that of ordinary organic compounds. α One amino acid has four different flavors: sour, sweet, bitter and fresh. Monosodium glutamate and glycine are the most delicious condiments. Amino acids are generally soluble in water, acid solution and alkali solution, insoluble or slightly soluble in organic solvents such as ethanol or ether.
The solubility of amino acids in water varies greatly. For example, the solubility of tyrosine is the smallest. At 25 ℃, only 0.045 g of tyrosine is dissolved in 100 g of water, but the solubility of tyrosine in hot water towel is large. Lysine and arginine often exist in the form of hydrochloride, because they are very soluble in water and difficult to crystallize due to deliquescence.
Essential amino acid: refers to the fact that the human body (or other vertebrates) cannot synthesize or the synthesis speed is far from meeting the needs of the body. It must be supplied by food protein. These amino acids are called essential amino acids. The requirement of essential amino acids for adults is about 20% - 37% of that of protein. There are 8 kinds of functions:
Lysine: it promotes brain development, is a component of liver and gallbladder, can promote fat metabolism, regulate pineal gland, mammary gland, corpus luteum and ovary, and prevent cell degeneration;
Tryptophan: promote the production of gastric juice and pancreatic juice; Phenylalanine: participate in eliminating the loss of kidney and bladder function; Methionine (methionine): participates in the composition of hemoglobin, tissue and serum, and has the function of promoting spleen, pancreas and lymph; Threonine: it has the function of transforming some amino acids to achieve balance.
Isoleucine: participate in the regulation and metabolism of thymus, spleen and sub brain gland; The subarachnoid gland belongs to the general command, which acts on the thyroid gland and gonads; Leucine: action balance isoleucine; Valine: acts on corpus luteum, mammary gland and ovary.
Amino,general
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