Effect of iced-storage on the activity of cathepsin L and trypsin-like protease in carp dorsal muscle

被引:5
|
作者
Hu, Yaqin [1 ]
Morioka, Katsuji [2 ]
Chen, Shiguo [1 ]
Liu, Donghong [1 ]
Ye, Xingqian [1 ]
机构
[1] Zhejiang Univ, Fuli Inst Food Sci, Dept Food Sci & Nutr, Zhejiang Key Lab Agrofood Proc, Hangzhou 310058, Zhejiang, Peoples R China
[2] Kochi Univ, Lab Aquat Prod Utilizat, Nankoku, Kochi 7838502, Japan
关键词
Cathepsin L; Trypsin-like protease; Carp; Actomyosin; Gel disintegration (modori); BOUND SERINE PROTEINASE; GEL-FORMING PROPERTIES; MODORI-PHENOMENON; SURIMI PRODUCTION; SKELETAL-MUSCLE; WASHED MEAT; DEGRADATION; PURIFICATION; APPEARANCE; INHIBITOR;
D O I
10.1016/j.lwt.2014.09.004
中图分类号
TS2 [食品工业];
学科分类号
0832 ;
摘要
Carps were stored in ice for 0, 2 and 4 days. The actomyosin was extracted from the ice-stored fish and the enzymatic activity of cathepsin L and trypsin-like protease in the extract was assayed. The two enzymes remained in the carp actomyosin despite intensive leaching during the extraction procedure. The activity of cathepsin L decreased slightly after 2 days of storage and remained relative constant thereafter, suggesting the enzyme was only slightly affected by the short term iced-storage. However the activity of the trypsin-like protease increased rapidly with iced-storage time, indicating that it might have been activated during the short term storage in ice. (C) 2014 Elsevier Ltd. All rights reserved.
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页码:1249 / 1253
页数:5
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