ANTIOXIDATIVE FLAVONOID GLYCOSIDES FROM QUINOA SEEDS (<i>CHENOPODIUM QUINOA</i> WILLD)
Nanqun Zhu, Shuqun Sheng, Dajie Li, Edmond J. LaVoie, Mukund V. Karwe, Robert T. Rosen +1 more
Journal of Food Lipids
Abstract
ABSTRACT Six flavonol glycosides have been isolated from quinoa seeds ( Chenopodium quinoa Willd) via normal phase and reverse phase column chromatography. On the basis of spectral data, their structures were established as kaempferol 3‐O‐[β‐D‐apiofuranosyl(1′–2″)]‐β‐D‐galactopyranoside ( 1 ), kaempferol 3‐O‐[α‐L‐rhamnopyranosyl(1″–2″)]‐β‐D‐galactopyranoside ( 2 ), kaempferol 3‐O‐[β‐D‐apiofuranosyl(1′–2″)‐α‐L‐rhamnopyranosyl(1″–6″)]‐β‐D‐galactopyranoside ( 3 ), kaempferol 3‐O‐(2,6‐di‐α‐L‐rhamnopyranosyl)‐β‐D‐galactopyranoside ( 4 ), quercetin 3‐O‐[β‐D‐apiofuranosyl (1′–2″)‐α‐L‐rhamnopyranosyl(1″–6″)]‐β‐D‐galactopyranoside ( 5 ) and quercetin 3‐O‐(2,6‐di‐α‐L‐rhamnopyranosyl)‐β‐D‐galactopyranoside ( 6 ). Among them, compounds 1, 4 and 6 were the main flavonoid glycosides found in quinoa seeds and compounds 2, 5 , and 6 were isolated from this plant for the first time. All six compounds exhibited antioxidant
Extracted Claims
12 claims extracted from this paper into the knowledge graph
quercetin 3‐O‐(2,6‐di‐α‐L‐rhamnopyranosyl)‐β‐D‐galactopyranoside isolated from quinoa seeds
“Six flavonol glycosides have been isolated from quinoa seeds (Chenopodium quinoa Willd) via normal phase and reverse phase column chromatography.”
kaempferol 3‐O‐[α‐L‐rhamnopyranosyl(1″–2″)]‐β‐D‐galactopyranoside isolated from quinoa seeds
“Six flavonol glycosides have been isolated from quinoa seeds (Chenopodium quinoa Willd) via normal phase and reverse phase column chromatography.”
kaempferol 3‐O‐(2,6‐di‐α‐L‐rhamnopyranosyl)‐β‐D‐galactopyranoside main flavonoid glycoside in quinoa seeds
“Among them, compounds 1, 4 and 6 were the main flavonoid glycosides found in quinoa seeds.”