Research Article
Study of Grape Polyphenols by Liquid Chromatography-High-Resolution Mass Spectrometry (UHPLC/QTOF) and Suspect Screening Analysis
Figure 1
Main flavonols in grape. R: galactose, glucose, glucuronic acid, and rutinose; R1: H, OH, and OCH3; R2: H, OH, and OCH3; (1) kaempferol, (2) quercetin, (3) myricetin, (4) isorhamnetin, (5) laricitrin, (6) syringetin, and (7) dihydroflavonol.