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Dressed broilers 의 냉장중 특수단백질 변화
이영춘 한국농화학회 1971 Applied Biological Chemistry (Appl Biol Chem) Vol.14 No.2
From both breast and leg muscle of 12 week-old broiler chicken held for aging in slushed ice and dry chilling at 33-35℉., myosin, actomyosin and other nitrogenous fractions were extracted with KCl-phosphate buffer for various periods from 1 hr. to 25 hr. post-mortem. The changes in extractable nitrogen occurred mainly as a result of decrease in extractability of myosin and to some extent, increase in extractability of actomyosin. Changes in stroma, sarcoplasmic and NPN fractions were small. Myosin extractability decreased rapidly during the first 3 hr. post-mortem and then reduced Continuously in both leg muscle and breast muscle during wet chilling. The decrease of myosin extractability in leg muscle was much more than that in breast muscle, and then the extractability increased after 17 hr. post-mortem in dry chilling. Actomyosin was extracted at low consistent level in wet chilling, while it increased considerably after 17 hr, post-mortem in dry chilling. The tendency was similar in both breast and leg muscle.