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Postmortem role of calpain in Chinese and Wuzong goose muscles.
Poultry Science ( IF 4.4 ) Pub Date : 2019-12-01 , DOI: 10.3382/ps/pez515 Ya-Shiou Chang , Marvin H. Stromer , Rong-Ghi R. Chou
Poultry Science ( IF 4.4 ) Pub Date : 2019-12-01 , DOI: 10.3382/ps/pez515 Ya-Shiou Chang , Marvin H. Stromer , Rong-Ghi R. Chou
The purpose of this study was to compare postmortem proteolysis and tenderization between Chinese and Wuzong goose breast muscles. Four months old Chinese (CG, n = 15) and Wuzong (WZ, n = 15) goose carcasses were vacuum-packaged 10 to 15 min postmortem and stored at 5°C. Breast (Pectoralis major) samples from each carcass were sampled at 0 (∼10 min postmortem), 1, 3, and 7 D of storage. Our results showed that the decrease in pH and calpain-1 activity was not different in CG and WG samples. However, the decrease in calpain-11 activity, desmin content, and shear force were more rapid (P < 0.05) in WZ than in CG samples. Our results indicate that postmortem proteolysis and tenderization of goose breast muscle were more extensive in WZ than in CG goose muscle.
更新日期：2020-04-17
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