Two or more amino acids are connected by peptide bonds, and the "amino acid chain" or "amino acid string" formed is called peptide. Among them, peptides composed of more than 10- 15 amino acids are called polypeptides, peptides composed of 2-9 amino acids are called oligopeptides, and peptides composed of 2- 15 amino acids are called small molecular peptides or small peptides.

Function:

1. Adjust the balance of water and electrolyte in the body;

2. Make antibodies against bacteria and infections for the immune system to improve immune function;

3. Promote wound healing;

4. Making enzymes in the body helps to convert food into energy;

5. Repairing cells, improving cell metabolism and preventing cell degeneration can play a role in preventing cancer.

The nutritional value of extended data peptides is higher than that of free amino acids and complete protein for the following reasons:

1. Generally speaking, the antigenicity of small peptides is lower than that of large peptides or prototype proteins.

2. Compared with transporting free amino acids, the body transports small peptides through the small intestine wall faster.

3. The osmotic pressure of peptide is lower than that of free amino acid, so it can improve the absorption efficiency of small peptide and reduce the osmotic problem.

4. Small peptides also have good sensory/taste effects.

References:

Baidu encyclopedia-small molecular active peptide