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EFFECT OF POSTMORTEM AGING ON CHICKEN BREAST MUSCLE SARCOPLASMIC RETICULUM
Author(s) -
HAY J. D.,
CURRIE R. W.,
WOLFE F. H.,
SANDERS E. J.
Publication year - 1973
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.1365-2621.1973.tb02848.x
Subject(s) - endoplasmic reticulum , centrifugation , chicken breast , sarcoplasm , skeletal muscle , biology , atpase , anatomy , chemistry , medicine , endocrinology , biochemistry , enzyme , food science
FSR (fragmented sarcoplasmic reticulum) isolated from chicken breast muscle (Pectoralis major) at 0 hr, 48 hr and 7 day postmortem was purified using linear density gradient centrifugation. The Ca ++ accumulating ability of the FSR was found to increase with postmortem aging. No loss in ATPase activity was noted nor was any significant change observed in the SDS‐gel electrophoresis patterns of the proteins with postmortem aging. The FSR from the aged muscle contained a higher proportion of phospholipids These studies indicate that the Ca ++ sequestering properties of sarcoplasmic reticulum from chicken breast muscle are not impaired during postmortem aging.