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HISTOCHEMICAL AND HISTOLOGICAL CHARACTERISTICS OF BOVINE MUSCLES FROM FOUR QUALITY GROUPS
Author(s) -
HUNT M. C.,
HEDRICK H. B.
Publication year - 1977
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.1365-2621.1977.tb12553.x
Subject(s) - medius , muscle fibre , anatomy , significant difference , biology , normal group , chemistry , fiber type , age groups , endocrinology , medicine , skeletal muscle , demography , sociology
Histochemical and histological properties were determined for the longissimus and gluteus medius muscles from beef carcasses which exhibited musculature of the four following quality groups: (1) normal in color, firmness and exudation; (2) normal in color but soft and exudative; (3) pale in color, soft and exudative; and (4) dark color, firm and dry. Differences were observed among quality groups for muscle fiber area and muscle fiber type. A greater proportion of ATPase olRed type fibers was observed in groups 2, 3 and 4 compared to group 1, indicating that muscles from these three aberrant groups differ in metabolic potential.