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Functional, bioactive and antioxidative properties of hydrolysates obtained from cod (Gadus morhua) backbones

Paper ID Volume ID Publish Year Pages File Format Full-Text
35169 45079 2009 10 PDF Available
Title
Functional, bioactive and antioxidative properties of hydrolysates obtained from cod (Gadus morhua) backbones
Abstract

Fish protein hydrolysates (FPH) have good and well documented functional properties. Peptides obtained from various fish protein hydrolysates have also shown bioactive and antioxidative activities.The aim of this study was to evaluate how storage and preparation of cod (Gadus morhua) backbones influence the yield, functionality, bioactivity (CGRP and gastrin/CCK related molecules) and antioxidative properties of fish protein hydrolysates. A series of hydrolysis trials have been carried out using backbones from cod that were initially fresh or frozen and further hydrolysed for different times (10, 25, 45 and 60 min). Use of fresh raw material significantly increased yield of dry FPH, gave lighter and less yellow powders with better emulsification properties. Longer time of hydrolysis gave higher FPH yield, increased degree of hydrolysis and decreased water holding capacity of the powders. Among the hydrolysis times tested, 25 and 45 min hydrolysis demonstrated the best emulsification properties.FPH have potential to enhance product stability by preventing oxidative deterioration. The DPPH scavenging activity showed that antioxidative activity of hydrolysates could be due to the ability to scavenge lipid radicals. The ability of hydrolysates to inhibit iron induced lipid oxidation was not influenced by time of hydrolysis.This work also shows that it is possible to obtain bioactive molecules from cod backbones by protein hydrolysis. The content of bioactive peptides (gastrin/CCK- and CGRP-like peptides) could make the cod hydrolysates useful for incorporation in functional foods.

Keywords
Hydrolysates; Cod; By-products; Functional; Antioxidative properties; CGRP; Gastrin; Cholecystokinin
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Functional, bioactive and antioxidative properties of hydrolysates obtained from cod (Gadus morhua) backbones
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Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 44, Issue 6, June 2009, Pages 668–677
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us