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Effects of high hydrostatic pressure on peelability and quality of crayfish(Procambarus clarkii)

文献类型： 外文期刊

作者： Shen, Lingwei 1 ; Qiu, Wenxing 1 ; Du, Liu 1 ; Zhou, Mingzhu 1 ; Qiao, Yu 2 ; Wang, Chao 1 ; Wang, Lan 2 ;

作者机构： 1.Hubei Univ Technol, Sch Biol & Food, Wuhan 430068, Peoples R China

2.Hubei Acad Agr Sci, Inst Agroprod Proc & Nucl Agr Technol, Key Lab Agr Prod Cold Chain Logist, Minist Agr & Rural Affairs, Wuhan 430064, Peoples R China

关键词： crayfish; peeling; high hydrostatic pressure; texture analyzer

期刊名称：JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE （ 影响因子：4.1； 五年影响因子：4.2 ）

ISSN： 0022-5142

年卷期： 2023 年

页码：

收录情况： SCI

摘要： BACKGROUND: Peeling of crayfish is a very important process in production. Crayfish peeling by machine can increase production efficiency and enhance safety in the production process. The tight muscle-shell attachment causes difficulty in peeling freshly caught crayfish. However, few studies have explored the changes in crayfish quality under favorable shell-loosening treatments.RESULTS: In this study, the shell-loosening properties of crayfish and changes in crayfish quality, microstructure and protein fluorescent features were investigated after high hydrostatic pressure (HHP) treatment. New methods were established to measure the peeling performance of crayfish, which are peelability and meat yield rate (MYR). The normalization of peelability and MYR were verified by different weights of crayfish tails and different treatments. The peeling effect of HHP-treated crayfish was evaluated by a new quantitative measurement method, and MYR was calculated. The results showed that all the HHP treatments reduced crayfish peeling work and increased MYR. The HHP treatment provided better crayfish quality in terms of texture and color and enlarged the shell-loosening gap. Among all HHP treatments, 200 MPa treatment exhibited lower peeling work, higher MYR and an expansion of the shell-loosening gap, reaching up to 573.8 mu m. At the same time, 200 MPa treatment could maintain crayfish quality.CONCLUSION: The findings outlined above suggest that high pressure is a promising method for loosening crayfish shells. 200 MPa is an optimal HHP treatment condition for crayfish peeling, exhibiting a promising application in industrial processing.(c) 2023 Society of Chemical Industry.

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