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EFFECT OF POSTRIGOR SARCOMERE LENGTH ON MECHANICAL AND STRUCTURAL CHARACTERISTICS OF RAW AND HEAT‐DENATURED SINGLE PORCINE MUSCLE FIBRES
Author(s) -
WILLEMS MARK E.T.,
PURSLOW PETER P.
Publication year - 1996
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.1745-4603.1996.tb00070.x
Subject(s) - sarcomere , muscle fibre , ultimate tensile strength , materials science , deformation (meteorology) , anatomy , biophysics , composite material , skeletal muscle , biology , myocyte , microbiology and biotechnology
Light microscopy during tensile tests was used to examine the effect of postrigor sarcomere length (SL) on mechanical and structural characteristics of raw and heat‐denatured (1 h at 80C) muscle fibres of porcine longissimus lumborum and the structural deformation mechanisms of such fibres inducing mechanical differences. The effect of the collagenous network associated with single coldshortened muscle fibres on maximum stress was analysed. Muscle bundles developed rigor at 2C (cold‐shortened = CS), at22C (control = C), and at 22C