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Updated: May 25, 2026

Determination of Total Lipid and Lipid Classes in Marine Samples
Published on: December 11, 2021
Flavoromics and lipidomics analysis of volatile compound formation in different aquatic lipids under thermal
Xinhui Bi1, Ying Wang1, Xuhui Huang1
1School of Food Science and Technology, State Key Laboratory of Marine Food Processing & Safety Control, National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, China.
Abstract:
Thermal processing is a critical factor that promotes lipid oxidation and generates volatile flavor compounds. This study employed sensory evaluation, electronic nose analysis, gas chromatography-mass spectrometry, thin-layer chromatography-flame ionization detection, and ultra-high-performance liquid chromatography-mass spectrometry to investigate the oxidation mechanisms of different aquatic lipids under thermal processing. The results demonstrated that both the types and levels of aldehyde compounds significantly increased following thermal oxidation. Specifically, hexanal, 2,4-decadienal, (E,E)-2,4-nonadienal, and (E)-2-nonenal were negatively correlated with PE, LPE, and PC, and exhibited significant negative correlations with C20:5 and C22:6. The quantity and composition of lipid species in several aquatic products also varied significantly before and after thermal oxidation. The distinct flavors observed in different aquatic lipids after thermal processing were closely associated with fatty acid composition and their esterification forms. These findings provided methodological insights and theoretical support for the regulation of lipid flavor.
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