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PARAMETERS OF TEXTURE CHANGE IN PROCESSED FISH: CROSS‐LINKAGE OF PROTEINS
Author(s) -
MAO WEIWEN,
STERLING CLARENCE
Publication year - 1970
Publication title -
journal of texture studies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.593
H-Index - 54
eISSN - 1745-4603
pISSN - 0022-4901
DOI - 10.1111/j.1745-4603.1970.tb00746.x
Subject(s) - dehydration , myosin , chemistry , texture (cosmology) , aldehyde , sodium , fish <actinopterygii> , food science , chromatography , biochemistry , organic chemistry , biology , artificial intelligence , fishery , computer science , image (mathematics) , catalysis
Soluble myosin and insoluble protein (i. e., soluble only in 5 % sodium dodecyl sulfate) were obtained from fresh and processed Sacramento blackfish and analyzed for the existence of possible cross‐links. Free sulfhydryl groups decreased somewhat in freezing and more in frozen storage. None were present after dehydration or cooking nor in any insoluble fractions, so that presumably these were oxidized in the formation of cross‐links. Ester bonds were much more numerous in insoluble protein than in soluble myosin, but their relative content was not clearly related to processing. Aldehyde groups decreased in myosin after cooking and dehydration, and were absent from insoluble protein. The presumptive Schiff base content was somewhat greater in soluble protein than in myosin and appeared to increase upon freezing and dehydration.