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Contribution of Intramuscular Connective Tissue to the Viscoelastic Properties of Post‐Rigor Bovine Muscle
Author(s) -
SACKS MICHAEL S.,
KRONICK PAUL L.,
BUECHLER PETER R.
Publication year - 1988
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.1365-2621.1988.tb10167.x
Subject(s) - viscoelasticity , connective tissue , stress relaxation , strain (injury) , relaxation (psychology) , perpendicular , muscle fibre , stress (linguistics) , muscle tissue , muscle relaxation , anatomy , materials science , chemistry , biomedical engineering , medicine , composite material , pathology , skeletal muscle , mathematics , linguistics , creep , geometry , philosophy
An indepth biomechanical study was performed to characterize more fully the viscoelastic behavior of post‐rigor bovine muscle, using samples oriented parallel and perpendicular to the muscle fiber direction. Two enzymes were used to degrade the intramuscular connective tissue (IMCT) to evaluate its mechanical contribution. An unusual stress‐strain curve was found in the parallel oriented samples, with enzymolysis affecting the curve at strains larger than 8%. Reductions in stresses in both orientations due to enzymolysis were 50% with extensibility unchanged. Stress relaxation tests indicated that regardless of orientation or treatment the relative stress‐relaxation was unchanged. IMCT contributed substantially to the mechanical response only at large deformations.