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《Journal of Guangxi University(Natural Science Edition)》 2012-03
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Separatton of geniposide from gardenia by reversed back extraction with polyethylene glycol

TANG Xin-zong,LIU Shen,ZHANG Xiao-xia,CHEN Jian,WEI Wan-xing(School of Chemistry and Chemical Engineering,Guangxi University,Nanning 530004,China)  
In order to overcome the shortcomings of traditional isolation methods of geniposide and obtain the isolated geniposide from Fructus gardenia,back-extraction with polyethylene glycol(PEG) was used to purify geniposide from crude extracts of raw materials.The residue was dissolved in butanol,and then extracted with aqueous solution of PEG.The organics in solution was subject to a column of the activated carbon and concentrate to obtain geniposide.With back-extraction of 5%(W/V) of PEG-6 000 for 3 times,the yield rate of the geniposide was 24.1% and purity 91.9%.The research adds knowledge to the separation of geniposide.
【Fund】: 国家自然科学基金资助项目(81060261);; 广西自然科学基金资助项目(2011GXNSFD018016)
【CateGory Index】: R286.0
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