FOOD SCIENCE ›› 2011, Vol. 32 ›› Issue (19): 16-22.doi: 10.7506/spkx1002-6630-201119004

• Basic Research • Previous Articles     Next Articles

Fractionation and Identification of Ethyl Ecetate Extract from Rhizoma Fagopyri Cymosi

ZHAO Li-qin1,2,ZHANG Xiao-ping1,*,ZHANG Chao-feng2   

  1. (1. Key Laboratory of Conservation and Employment of Biological Resources, Anhui Normal University, Wuhu 241000, China ; 2. Research Department of Pharmacagnosy, China Pharmaceutical University, Nanjing 211198, China)
  • Published:2011-10-12

Abstract: Objective: To fractionate the ethyl ecetate extract from Rhizoma Fagopyri Cymosi and identify the resulting fractions. Methods: Silica gel column chromatography, Sephadex LH-20 column chromatography and recrystailization were employed to fractionate the ethyl ecetate extract. According to physiochemical properties and spectral data, the fractions obtained were identified. Results: Thirteen compounds were separated from the ethyl ecetate extract and elucidated as glutinone (1), isorhametin (2), quercetin (3), quercetin-3-O-α-L-rhamnoside (4), eriodictyol (5), catechin (6), 3,5-dimethoxy benzene carbonic acid-4-O-glucoside (7), syringic acid (8), p-hydroxyl-benzaldehyde (9), succinic acid (10), N-trans-coumaroyl tyramine (11), sitosterol (12) and daucosterol (13). Conclusion: For the first time, compounds 5, 7 and 11 have been isolated from the genus of Fagopyrum, and compound 8 from Fagopyrum dibotrys (D.Don) Hara.

Key words: Fagopyrum dibotrys, chemical composition, isolation, identification

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