1, broad bean, millet, pumpkin, wax gourd,

2. Edible fungi, such as Lentinus edodes, Pleurotus ostreatus and Auricularia auricula.

3. Collagen, such as pigskin, trotters and fish skin.

4, vegetables and cereals, peanuts, corn, bitter gourd

Protein foods all contain peptides, which can be extracted from many animals and plants, such as walnuts, corn, peas, bitter gourd, mung beans, rice, peanuts and seafood, and wood frogs, deer and turtles in animals.

Extended data:

Active peptides are closely related to nutrition, hormones, enzyme inhibition, immune regulation, antibacterial, antiviral and antioxidant activities. Polypeptides are generally divided into: polypeptide drugs and polypeptide health products.

Traditional polypeptide drugs are mainly polypeptide hormones. 20 1 1 The development of polypeptide drugs has developed into various fields of disease prevention and treatment, especially the following fields.

Only those whose molecular weight ranges from 5000 to 50 can be called peptides. Fragments with molecular weight between 5000 ~ 10000 are called large peptides. The molecular weight segments between1000 and 50 are called small peptides, oligopeptides and oligopeptides, also known as small molecular active peptides. Biologists call peptides "amino acid chains" and small molecular active peptides "bioactive peptides".

References:

Peptide-Baidu Encyclopedia