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Influence of age on muscle connective tissue in trout ( Salmo irideus )
Author(s) -
Montero Pilar,
Borderías Javier
Publication year - 1990
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.2740510213
Subject(s) - salmo , connective tissue , trout , muscle tissue , anatomy , solubility , brown trout , biology , chemistry , fishery , fish <actinopterygii> , genetics , organic chemistry
The physicochemical properties of the connective tissue in the muscle of trout (Salmo irideus Gibb) from four different age groups were studied. Solubility, thermal denaturation and the yields of the α, β and γ components were used as indices of collagen aggregation. Shear strength of connective tissue fiom different locations in trout jllets was also measured. Muscle connective tissue in the larger trout (1800 g ) was more abundant and the collagen exhibited a lower level of crosslinking. However, shear strength values were significantly different only for the youngest specimens (200 g). Collagen crosslinking increased with size in the other three groups studied (200,800 and 1200 g); the connective tissue from the 800‐g and 1200‐g specimens had similar shear strength values which were higher than those for the 200‐g specimens.