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Updated: Jul 23, 2025

Determination of Total Lipid and Lipid Classes in Marine Samples
Published on: December 11, 2021
Lipidomics reveals the relationship between lipid oxidation and flavor formation of basic amnio acids participated
Min Zhang1, Jing-Jing Fu2, Jun-Long Mao2
1School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China; National Engineering Research Center of Seafood, Dalian 116034, China.
Abstract:
The effects of basic amino acids on lipid oxidation and the formation of volatile compound in low-sodium cured large yellow croaker were investigated. Basic amino acids contribute a lot in inhibiting the degradation of phospholipids, especially l-lysine. Lipid oxidation was also inhibited by basic amino acids, and the total oxidation of groups could be sorted as low-sodium (LS) > control (C) > l-Histidine participated LS group (LS-His) > l-Arginine participated LS group (LS-Arg) > l-lysine participated LS group (LS-Lys). PC 18:1/20:5, PC 16:0/18:1, triacylglycerol (TG) 16:1/20:5/22:6, etc., were found to be key differential lipid metabolites, and 1-propanol, 2-methyl, gamma-hexalactone, etc. were recognized as key differential volatile compounds. The results of correlation analysis showed that alcohols and esters were positively correlated with TG molecules composed of saturated fatty acids and monounsaturated fatty acids. These findings provided new insights into the relationship between flavor formation and the degradation and oxidation of lipids.
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