J. Anim Sci.
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J. Anim Sci. 1971. 32:620-623.
© 1971 American Society of Animal Science
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Age and Muscle-Related Differences of Acid Mucopolysaccharides in Bovine Muscle Tissue1

R. L. Gilbreath, G. R. Di Marco2 and G. W. Vander Noot

New Jersey Agricultural Experiment Station, New Brunswick 08903

Abstract

THE eight acid mucopolysaccharides (AMPS), which have been isolated and identified from numerous sources, are large carbohydrate molecules consisting of alternating uronic acid and acetylated hexosamine units which may or may not be sulfated. These polyanionic molecules occur in the extracellular tissue spaces and are believed to participate in important in vivo functions, such as water retention, electrolyte control, membrane permeability and collagen organization.

Quantitative and qualitative differences in AMPS have been investigated in a wide variety of animal tissues, but there is very little information concerning the amount or types occurring in skeletal muscle. Hexosamine has been measured in lamb and beef muscle as an estimation of AMPS content (McIntosh, Acker and Kline, 1961; Hill, 1966) and Mclntosh (1966) isolated a substance tentatively identified as chondroitin sulfate C.

The in vivo properties of AMPS suggest possible important influences on carcass characteristics in meat animals. The purpose of this investigation, therefore, is to provide more definitive information on the quantity and types of AMPS in bovine skeletal muscle preliminary to evaluation of any possible influence they may have on economically-important aspects of muscle as a food.

Footnotes

1 Paper of the Journal Series, Department of Animal Sciences, Rutgers University, The State University of New Jersey, New Brunswick.

2 Department of Food Science.






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