FOOD SCIENCE ›› 2004, Vol. 25 ›› Issue (11): 167-170.

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Extraction, Separation and Main Constituent Analysis of Purple-Fleshed Sweet Potato Anthocyanin from Species Originally Produced in Japan

 YU  Yan-Ying, WANG  杉, CAO  Shu-Wen, DENG  Ze-Yuan   

  1. 1.Department of Chemistry, Nanchang University;2. Center of Disease Control of Jiangxi Province;3. Key Laboratory of Food Science of MOE, Nanchang University
  • Online:2005-11-15 Published:2011-10-24

Abstract: The optimal ethanol extraction technical conditions and main constituent analysis of purple-fleshed sweet potatoanthocyanin (PSA) from species originally produced in Japan were studied in this paper. The results suggested that the optimalethanol extraction technical conditions were 2.0% of the extraction acid concentration, 60minutes of extraction time and 1:30 ofthe rate of solid to liquid. The reverse phase HPLC (RPHPLC) investigation showed that the main constituent of PSA wascyanidin-3-glucoside, which was acylated mainly by chlorigenic acid and sinapinic acid.

Key words: purple-fleshed sweet potato anthocyanin (PSA), extraction, main constituent analysis