Progress in Research on Animal Collagen Peptides: Preparation, Bioactivity, and Application.

Area of Science:

• Biochemistry
• Biomaterials Science

Background:

• Type I collagen is a primary animal protein.
• Hydrolyzed collagen peptides possess diverse applications.

Purpose of the Study:

• Review collagen peptide preparation methods.
• Summarize biological activities and applications in food, cosmetics, and medicine.

Main Methods:

• Extraction and hydrolysis techniques yield peptides of varying molecular weights.
• Structure-activity relationship analysis based on molecular weight and amino acid sequence.

Main Results:

• Collagen peptides exhibit antioxidant, hematopoietic, osteogenic, antihypertensive, and anti-diabetic effects.
• Applications include healthy foods, cosmetics (moisturizing, anti-aging), and medical uses (wound dressings, drug carriers, tissue engineering).

Conclusions:

• Further research into green preparation technologies and structure-function relationships is crucial.
• Multifunctional collagen peptides have broad prospects in the health industry.