Fish protein hydrolysates: proximate composition, amino acid composition, antioxidant activities and applications: a review

Food Chem. 2012 Dec 15;135(4):3020-38. doi: 10.1016/j.foodchem.2012.06.100. Epub 2012 Jul 11.

Abstract

The fish processing industry produces more than 60% by-products as waste, which includes skin, head, viscera, trimmings, liver, frames, bones, and roes. These by-product wastes contain good amount of protein rich material that are normally processed into low market-value products, such as animal feed, fish meal and fertilizer. In view of utilizing these fish industry wastes, and for increasing the value to several underutilised fish species, protein hydrolysates from fish proteins are being prepared by several researchers all over the world. Fish protein hydrolysates are breakdown products of enzymatic conversion of fish proteins into smaller peptides, which normally contain 2-20 amino acids. In recent years, fish protein hydrolysates have attracted much attention of food biotechnologists due to the availability of large quantities of raw material for the process, and presence of high protein content with good amino acid balance and bioactive peptides (antioxidant, antihypertensive, immunomodulatory and antimicrobial peptides).

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Amino Acids / chemistry*
  • Animal Feed / analysis
  • Animals
  • Antioxidants / chemistry*
  • Antioxidants / pharmacology
  • Fish Proteins / chemistry*
  • Fish Proteins / pharmacology
  • Fishes
  • Humans
  • Protein Hydrolysates / chemistry*
  • Protein Hydrolysates / pharmacology*

Substances

  • Amino Acids
  • Antioxidants
  • Fish Proteins
  • Protein Hydrolysates