Separation and identification of flavonoids from fistular onion stalk (Allium fisturosum L. var. Caespitosum Makio).
The chemical constituents of fistular onion stalk obtained by supercritical CO(2) extraction were separated and purified by silica gel and sephadex LH-20 gel column chromatography and the preparative TLC method and four flavonoids were obtained. On the basis of the spectral data, they were structurally identified as (+)-catechin, (-)-epicatechin, astragalin, and 3-O-beta-D(2-O-beta-D-glucopyranosyl)-glucopyranosides of kaempferol.
Fu
Qinqin
Q
Department of Pharmacognosy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China. fuqinqin2004@163.com
Liu
Jingyou
J
Zhang
Changgong
C
Zhou
Yinbo
Y
Zhang
Geng
G
Ma
Dan
D
Yang
Xinzhou
X
D000490:Allium / Q000737:chemistry*; D002392:Catechin / Q000302:isolation & purification; D002850:Chromatography, Gel / Q000379:methods; D005419:Flavonoids / Q000302:isolation & purification*; D044949:Kaempferols / Q000302:isolation & purification
D005419:Flavonoids; D044949:Kaempferols; D002392:Catechin; C001579:astragalin
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