FOOD SCIENCE ›› 2012, Vol. 33 ›› Issue (4): 267-270.doi: 10.7506/spkx1002-6630-201204057

• Packaging & Storage • Previous Articles     Next Articles

Partial Biochemical Properties of Scallop (Patinopecten yessoensis) Mince during Frozen Storage

WANG Xiao-li,ZHU Bei-wei,DONG Xiu-ping,ZHENG Jie,CHEN Zhao,LIU Gui-yang   

  1. 1. Special Sub-center of Shellfish of National Research and Development Center of Agriculture Product Processing Technology, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China; 2. School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
  • Online:2012-02-25 Published:2012-02-14

Abstract: The changes of biochemical properties, including the salt extractable protein content, Ca2+-ATPase activity, Ca2+-Mg2+-ATPase activity and the contents of total and active sulfhydryl groups, of scallop (Patinopecten yessoensis) mince during frozen storage (-18 or -35 ℃) were investigated. The results showed that the protein denaturation was very serious after 5 months of storage at -18 ℃. The solubility in salt solutions, Ca2+-ATPase and Ca2+-Mg2+-ATPase activity, total and sulfhydryl group contents of actomyosin decreased to 11.28%, 20.31%, 30.36%, 68.49% and 83.67% of their original values after 5 months of storage at -18 ℃ and to 60.01%, 45.25%, 48.17%, 82.80% and 88.71% after 10 months of storage at -35 ℃, respectively. Under each temperature condition, all the parameters showed a downward trend with prolonged storage period and decreased less at -35 ℃ than at -18 ℃. Therefore, -35 ℃ was more suitable for storing scallop mince than -18 ℃.

Key words: scallop mince, frozen storage, biochemical properties

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