Article http://dx.doi.org/10.26855/ijfsa.2023.12.007

Effects of Cold Stress Mode on Nutrient Composition, Energy Metabolism and Oxidative Stress During the Ecological Ice-temperature Retention Period of the Milky Oyster, Crassostrea Gigas


Lei Liu1, Lanlan Zhu1,*, Yaqing Liu1, Ling Li1, Xue Duan1, Weiting Wang2, Yanbo Wang1

1Shandong University of Technology, Zibo, Shandong, China.

2Institute of Food & Nutrition Science and Technology, Shandong Academy of Agricultural Sciences, Shandong Provincial Key Laboratory of Agro-Products Processing Technology, Key Laboratory of Novel Food Resources Processing, Ministry of Agriculture, Jinan, Shandong, China.

*Corresponding author:  Lanlan Zhu

Published: January 22,2024


Objective: To investigate the effects of pre-cooling methods of anhydrous preservation and temperature stress on their oxidative immune system, and energy substance metabolism, and to select a better method of low-temperature stress. Methods: The oysters were preserved alive by three ice temperature-induced dormancy methods, namely, acute cooling, bulk ice cooling, and gradient cooling, respectively, and the degree of damage of different cold stress methods on the milky oyster was investigated by the basic nutrient composition, metabolic status, and oxidative stress indexes. Results: The survival rate, crude protein, and crude fat of oysters preserved by gradient cooling for 10d were higher than those of the acute cooling group and bulk ice cooling group, and the moisture content was not much different, and the bulk ice cooling group was slightly higher than the other two groups. The antioxidant enzyme activity and TBA content of oysters in all groups increased throughout the storage period, and the ice-cooling group was significantly higher than the other two groups (P<0.05); the glycogen consumption of the gradient cooling group was significantly lower than that of the acute and ice-cooling groups (P<0.05), and the lactic acid con-tent of oysters in all groups increased, and the gradient cooling group was significantly lower than that of the acute and ice-cooling groups (P<0.05). Conclusion: The gradient cooling method induced oysters to enter the ecological ice tempera-ture dormant state and then began to live without water, oysters in this method of antioxidant enzyme activity and lipid peroxidation have been reduced, the survival time of the oyster is longer, the energy metabolism of the material consumed less, and it is more conducive to the oyster's long time without water to survive.


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How to cite this paper

Effects of Cold Stress Mode on Nutrient Composition, Energy Metabolism and Oxidative Stress During the Ecological Ice-temperature Retention Period of the Milky Oyster, Crassostrea Gigas

How to cite this paper: Lei Liu, Lanlan Zhu, Yaqing Liu, Ling Li, Xue Duan, Weiting Wang, Yanbo Wang. (2023) Effects of Cold Stress Mode on Nutrient Composition, Energy Metabolism and Oxidative Stress During the Ecological Ice-temperature Retention Period of the Milky Oyster, Crassostrea GigasInternational Journal of Food Science and Agriculture7(4), 463-471.

DOI: http://dx.doi.org/10.26855/ijfsa.2023.12.007