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Hypothermal effects of cold anesthesia on the vitality and muscle quality of live Chinese mitten crab (Eriocheir sinensis)

文献类型： 外文期刊

作者： Chen, Laixin 1 ; Han, Yanchao 1 ; Mu, Honglei 1 ; Niu, Ben 1 ; Liu, Ruiling 1 ; Wang, Guannan 1 ; Chen, Huizhi 1 ; Wang, Lishu 2 ; Chen, Hangjun 1 ; Gao, Haiyan 1 ;

作者机构： 1.Zhejiang Acad Agr Sci, Food Sci Inst, Key Lab Intelligent Food Logist & Proc Zhejiang Pr, Hangzhou 310021, Peoples R China

2.Med Coll Wisconsin, Dept Med, Milwaukee, WI USA

3.City Hope Natl Med Ctr, Comprehens Canc Ctr, Dept Hematol & Hematopoiet Cell Transplantat, Duarte, CA USA

关键词： Cold anesthesia; Eriocheir sinensis; Protein oxidation; Water distribution; Muscle quality

期刊名称：FOOD RESEARCH INTERNATIONAL （ 影响因子：8.0； 五年影响因子：8.5 ）

ISSN： 0963-9969

年卷期： 2025 年 219 卷

页码：

收录情况： SCI

摘要： Crab encounters obstacles like elevated transportation expense and diminished survival rate. In the study, the effects of cold anesthesia (CA), including fast cooling (FC) and slow cooling (SC) anesthesia on the vitality state and muscle quality of Chinese mitten crab were researched. We found firstly that the CA dormancy temperature range of Chinese mitten crab was identified from -2 to 10 degrees C, and 7 degrees C was optimal. They could survive for a duration of 10 d when subjected at 7 degrees C, the survival rate of SC treatment significantly increased to 80.6 %. Compared with the control and FC groups, the Lt50 of crab in the SC group was prolonged, and the mass loss rate, lactic acid content, and oxidative loss of myofibrillar protein (MP) were significantly increased during storage. Moreover, the texture became soft, the myofibrillar structure was broken, the gaps between muscle fibers were enlarged, and the water-holding capacity (WHC) decreased significantly in the control group, while the texture and WHC in CA treatments (FC and SC) had no significant change, especially SC. CA treatments could effectively prevent myofibril destruction, reduce pH fluctuation and protein oxidation, and keep fixed water in the muscle. Of the two CA treatments, SC was more conducive to maintaining muscle quality and vital signs. Therefore, CA treatments not only enhanced survival rate but also inhibited muscle deterioration, especially SC. These findings offered crucial empirical support for advancements in live crab preservation technology and should be validated on a larger scale.

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