食品科学 ›› 2007, Vol. 28 ›› Issue (1): 151-154.

• 工艺技术 • 上一篇    下一篇

藤茶水溶性多糖的分离纯化及性质的研究

 罗祖友, 程超, 李伟, 吴谋成   

  1. 湖北民族学院生物科学与技术学院; 华中农业大学食品科技学院 湖北恩施445000; 湖北恩施445000; 湖北武汉430070;
  • 出版日期:2007-01-15 发布日期:2011-12-31

Isolation, Purification and Characterization of Water-soluble Polysaccharides from Ampelopsis grossedentata

 LUO  Zu-You, CHENG  Chao, LI  Wei, WU  Mou-Cheng   

  1. 1.School of Biological Science and Technology, Hubei Institute for Nationalities, Enshi 445000, China; 2.College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
  • Online:2007-01-15 Published:2011-12-31

摘要: 经水提、醇沉、Sevag法脱蛋白的藤茶多糖(AGP),通过DEAE-SephadexA-25和SephadexG-200柱层析,得到多糖AGP-3和AGP-4。HPLC和SephadexG-200柱层析鉴定AGP-3和AGP-4为分子量相对均一的蛋白多糖,硫酸-咔唑反应、考马斯亮蓝G-250反应均呈阳性。

关键词: 藤茶, 多糖, 分离, 纯化, 性质

Abstract: Polysaccharide from Ampelopsis grossedentata (AGP) was obtained after being extracted with hot water, precipitated with alcohol and removed free protein with Sevag method. AGP was isolated and purified by DEAE-Sephadex A-25 and Sephadex G-200 column chromatography, two pure polysaccharides (AGP-3 and AGP-4) were gained. The results of HPLC and Sephadex G-200 column chromatography illustrated that both AGP-3 and AGP-4 were protein-bond polysaccharids with comparatively homogenous molecular weights. Also, the two polysaccharids were colored by coomassie brilliant blue G-250 and carbazole reaction.

Key words: Ampelopsis grossedentata, polysaccharide, isolation, purification, characterization