Stability of Bovine Muscle Connective Tissues

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Abstract
Endomysium, perimysium and epimysium were isolated from beef stemomandibularis muscle. The susceptibilities of these fractions to degradation by a C. histolyticum collagenase preparation were tested; highest proteolysis was found in the perimysium, followed by epimysium and endomysium. The thermal stability of samples obtained from animals of two different age groups was studied by differential scanning calorimetry; although age had no effect on stability, in both age groups the stability of endomysium was significantly lower than those of the other two fractions. These differences may be related to the type of structural arrangement, collagen composition and the non‐collagenous components present in the connective tissue fractions.