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Published on: August 23, 2019
Effects of different slaughtering methods on the biochemical characteristics and quality changes of tilapia
Xinrui Yang1, Jun Mei1,2,3,4,5, Jing Xie1,2,3,4,5
1College of Food Science and Technology, Shanghai Ocean University, Shanghai, China.
Abstract:
Inappropriate slaughter methods can lead to differences in fish quality. In the past few years, few studies have focused on the effects of different slaughter methods on the postmortem effects of tilapia, especially the cold storage of tilapia after slaughter. The aim of this study was to investigate the effects of different slaughter methods on the biochemical characteristics and quality changes of tilapia during cold storage. In terms of blood and plasma parameters, the CS sample had lower levels of lactate dehydrogenase (LDH), cortisol (COR), and glucose (GLU) than the other samples. The results of K-value and FAAs showed that CS and ASCN groups were beneficial to prolong the freshness life of tilapia during cold storage. The texture properties of CS group were better. In summary, group CS is more conducive to prolonging the fresh life of refrigerated tilapia and is a recommended method of slaughter.

