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Plaice Skin Collagen Extraction and Functional Properties
Author(s) -
MONTERO P.,
ALVAREZ C.,
MARTÍ M. A.,
BORDERÍAS A. J.
Publication year - 1995
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1365-2621.1995.tb05593.x
Subject(s) - solubility , solubilization , homogenization (climate) , freeze drying , chemistry , chromatography , extraction (chemistry) , water holding capacity , acetic acid , food science , biochemistry , organic chemistry , biology , biodiversity , ecology
Solutions and mechanical treatments for decolorizing and washing of collagen from plaice ( Pleuronectes plutessa ) skin were studied. The best means was high‐speed homogenization with 0.4M NaCl. Four ways of stabilizing this collagen were tried, involving freezing and freeze‐drying, and partial solubilization with 0.05M acetic acid prior to freezing or freeze drying or without partial solubilization. Only freeze‐drying caused reduction in solubility and emulsifying capacity. Viscosity was greatest when samples were pre‐solubilized. Emulsifying capacity was not changed when samples were frozen and decreased when they were either freeze‐dried or presolubilized. Optimum water‐holding capacity occurred in samples which had been previously solubilized.