Temperature effects on plasmalogen profile and quality characteristics in Pacific oyster (Crassostrea gigas) during depuration

被引:3
作者
Song, Yu [1 ]
Hao, Lili [1 ]
Wang, Xincen [1 ]
Wang, Xiaoxu [1 ]
Cong, Peixu [1 ]
Li, Zhaojie [1 ]
Xue, Changhu [1 ,2 ]
Xu, Jie [1 ]
机构
[1] Ocean Univ China, Coll Food Sci & Engn, State Key Lab Marine Food Proc & Safety Control, 1299 Sansha Rd, Qingdao 266404, Shandong, Peoples R China
[2] Qingdao Marine Sci & Technol Ctr, Qingdao 266235, Peoples R China
关键词
Pacific oyster; Depuration; Temperature; Quality; Plasmalogen profile; Proteomics; METABOLISM; RESPONSES; EXPRESSION; TOLERANCE;
D O I
10.1016/j.foodres.2024.114356
中图分类号
TS2 [食品工业];
学科分类号
0832 ;
摘要
The quality of Pacific oyster (Crassostrea gigas) can be affected by many factors during depuration, in which temperature is the major element. In this study, we aim to determine the quality and plasmalogen changes in C. gigas depurated at different temperatures. The quality was significantly affected by temperature, represented by varying survival rate, glycogen content, total antioxidant capacity, alkaline phosphatase activity between control and stressed groups. Targeted MS analysis demonstrated that plasmalogen profile was significantly changed during depuration with PUFA-containing plasmalogen species being most affected by temperature. Proteomics analysis and gene expression assay further verified that plasmalogen metabolism is regulated by temperature, specifically, the plasmalogen synthesis enzyme EPT1 was significantly downregulated by high temperature and four plasmalogen-related genes (GPDH, PEDS, Pex11, and PLD1) were transcriptionally regulated. The positive correlations between the plasmalogen level and quality characteristics suggested plasmalogen could be regarded as a quality indicator of oysters during depuration.
引用
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页数:11
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