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Comprehensive discrimination of various grades of green tea by lipidomics combined with principal component analysis
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DOI：10.1016/j.jfca.2026.109307.png)
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Abstract
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• Obtaining the lipidomics fingerprints of Longjing green tea by UHPLC-HR-AM/MS/MS. • Longjing tea contains high phospholipid and unsaturated fatty acid. • High-grade Longjing tea shows low ratios of n-6/n-3 fatty acids, high ratios of PUFA/SFA. • PC and TG isomer pairs serve as key lipid biomarkers for grading Longjing green tea.
Keywords:
Longjing green tea
grades
isomers
lipidomics
UHPLC-HR-AM/MS/MS
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