Amino Acids

Amino acids，a class of organic compounds that contain amino and carboxyl groups are one of the many biologically active macromolecules that build biological organisms, and are the basic materials for building cells and repairing tissues. Amino acids are utilized by the human body to make antibody proteins, hemoglobin, enzymes and hormones to maintain and regulate metabolism, and are therefore the source of all life. With a variety of special functional groups and diverse structures, amino acids have a wide range of applications in pharmaceutical, food, cosmetic and other fine chemical fields.

(1) Application in Food industry

Monosodium glutamate is the first amino acid used by human beings, and it is also one of the condiments with the widest range of application in the world. Glycine, alanine, aspartic acid, leucine and asparagine have been found one after another to have flavoring effects, such as glycine for sweetness and leucine for bitterness. Lysine is one of the essential amino acids and the first limiting amino acid of protein, and is often used as a nutrition reinforcer. Adding lysine to rice, wheat, corn and other cereal foods can substantially increase the nutritional value of this type of protein. The sweet dipeptide synthesized by aspartic acid and phenylalanine is about 150 times sweeter than sucrose, and has the characteristics of pure sweetness, low caloric value, and superior absorption by human body, making its widely application in beverages, coffee, dairy products, etc. As calcium supplement products, calcium amino acid chelate and calcium aspartate have been commercialized.

(2) Application in Pharmaceutical industry

Amino acids are the raw materials for synthesizing human proteins, hormones, enzymes and antibodies, and are involved in regulating human metabolism and physiological activities. Amino acids and their derivatives can be used as nutritional agents, metabolic modifiers and special diets for special people. The special infusion for liver disease patients is made from a variety of branched-chain amino acids in a certain ratio; the special infusion for tumor patients is designed and prepared according to the special amino acid profile of tumor patients and together with therapeutic drugs. The amino acid infusion for infants and young children is prepared according to the characteristics that the kidney function is not fully developed and the liver and other tissues are weak in metabolizing nutrients.

(3) Application in Cosmetics

The main amino acids used in cosmetics on the market are L-glutamic acid, L-proline, L-arginine, and L-serine. L-arginine is a precursor for the synthesis of nitric oxide, proline, creatine, etc. It plays a key role in cell proliferation, energy metabolism and endothelial function, and is considered a possible substitute for EGF as a repair component. Amino acid surfactant is a mild and degradable anionic surfactant. Its main active ingredient is the sodium salt of complex amino acids, which are mainly used in shampoos, baby toiletries, body washes and facial washes in daily chemical products. Amino acid surfactants are becoming more and more popular in the market because of their high safety, small usage, strong biological activity, good degradability and easy compounding.

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