Flavonol triglycosides containing galactose in tea.
The isolation and structural elucidation of new quercetin and kaempferol triglycosides from Camellia sinensis is described. Their structures were determined as quercetin and kaempferol 3-glucosyl(1----3) rhamnosyl(1----6)galactosides. The content of quercetin glucosylrhamnosylgalactoside ranged between 0 and 87 mg per 100 g, and that of the kaempferol homologue between 0 and 119 mg per 100 g dry wt.
Finger
A
A
Institut für Lebensmittelchemie der Technischen Universität, Braunschweig, Germany.
Engelhardt
U H
UH
Wray
V
V
D002240:Carbohydrate Sequence; D002851:Chromatography, High Pressure Liquid; D006868:Hydrolysis; D044949:Kaempferols; D009682:Magnetic Resonance Spectroscopy; D008969:Molecular Sequence Data; D011794:Quercetin / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification; D013662:Tea / Q000032:analysis*; D014312:Trisaccharides / Q000737:chemistry / Q000302:isolation & purification*
D044949:Kaempferols; D013662:Tea; D014312:Trisaccharides; C070616:quercetin 3-glucosyl(1-3)rhamnosyl(1-6)galactoside; C070617:kaempferol 3-glucosyl(1-3)rhamnosyl(1-6)galactoside; D011794:Quercetin