Identification of oxygenated triacylglycerols in pistachio nuts' lipids by reverse-phase high-resolution-liquid chromatography-ESI mass spectrometry
FOOD RESEARCH INTERNATIONAL(2024)
摘要
Hydroxy- and peroxy-triacylglycerols are common products of lipid peroxidation formed during oil storage or heating or as enzymatic oxidation product of arachidonic acid as signaling molecules in mammals. In this study, oxygenated triacylglycerides (TAG) were identified in pistachio oil based on reverse phase (RP), highperformance liquid chromatography coupled with electrospray ionization and mass spectrometry (HPLC- ESI -MS). 20 novel lipid plant metabolites, classified based on their fragment spectra into a hydroxy (TAG-OH), an epoxy (TAG-O), and hydroperoxide (TAG-OOH) groups. We believe that this class of compounds has been for the first time observed as genuine secondary plant metabolites in a natural source in this case pistachio lipids of dietary relevance.
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关键词
Liquid chromatography,Mass spectrometry,Triacylglycerol,Pistachio,Lipid oxidation,Electrospray ionization
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