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Seasonal variation of acid-soluble collagens extracted from the swim bladders and skins of bighead carp (Hypophthalmichthys nobilis) and grass carp (Ctenopharyngodon idella)

Paper ID Volume ID Publish Year Pages File Format Full-Text
19646 43115 2016 7 PDF Available
Title
Seasonal variation of acid-soluble collagens extracted from the swim bladders and skins of bighead carp (Hypophthalmichthys nobilis) and grass carp (Ctenopharyngodon idella)
Abstract

This study investigated the seasonal variation in the physicochemical properties of acid-soluble collagens (ASC) from the scales and skins of bighead carp and grass carp. The electrophoresis patterns of protein fraction and peptide hydrolysis treated by V8 protease were characterized using gel electrophoresis. Changes in thermostability were measured using differential scanning calorimetry, and collagen fibrils in vitro were observed using transmission electron microscopy. The ASC were mainly determined as type I collagens with triple helical structures. For collagens from the same tissue of the same fish species, similar protein fraction patterns and peptide hydrolysis patterns were observed, and the amino acid contents also showed no clear pattern of change with season. The thermal transition temperature of ASC showed a maximum seasonal variation of 0.5 °C, with no systematic pattern. The collagens could assemble into fibrils in vitro, and the d-periodicities of the fibrils showed no significant seasonal variation. The results suggested that the skins and swim bladders of two major freshwater species were reasonably stable as an alternative collagen source for year-round production.

Keywords
Collagen; Seasonal variation; Grass carp; Bighead carp; Thermostability
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Seasonal variation of acid-soluble collagens extracted from the swim bladders and skins of bighead carp (Hypophthalmichthys nobilis) and grass carp (Ctenopharyngodon idella)
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Publisher
Database: Elsevier - ScienceDirect
Journal: Food Bioscience - Volume 15, 1 September 2016, Pages 27–33
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