天然产物研究与开发 ›› 2014, Vol. 26 ›› Issue (5): 745-749.

• 开发研究 • 上一篇    下一篇

野木瓜水溶性多糖的分离纯化及抗氧化活性研究

王文平1*,田 亮1,吴国卿1,唐维媛1,王明力1,郭祀远2   

  1. 1 贵州大学贵州省发酵工程与生物制药重点实验室,贵阳 550003;2 华南理工大学轻工与食品学院,广州 510640
  • 出版日期:2014-05-31 发布日期:2014-11-17

Study on the Separation,Purification and Antioxidant Activity of Water-soluble Polysaccharides from Chaenomeles cathayensis

WANG Wen-ping1*, TIAN Liang1, WU Guo-qing1, TANG Wei-yuan1, WANG Ming-li1, GUO Si-yuan2   

  1. 1 Guizhou Province Key Laboratory of Fermentation Engineering and Biological Pharmacy,Guizhou University,Guiyang 550003,China; 2 College of Light Industry and Food Science,South China University of Technology,Guangzhou 510640,China
  • Online:2014-05-31 Published:2014-11-17

摘要: 采用水提醇沉法获得了水溶性野木瓜粗多糖(CCCPs),经过脱蛋白、脱色及透析,得到了野木瓜精多糖(FCCPs),再经DEAE纤维素和Sepharose CL-6B柱层析得到均多糖组分(CCP1)。高效液相色谱法测定CCP1的单糖组成为:鼠李糖、阿拉伯糖、果糖、甘露糖、葡萄糖,其摩尔比为0.034:0.228:0.045:0.055:0.638。体外抗氧化实验结果表明:不同纯度的野木瓜多糖都具有一定的抗氧化活性,并且随着多糖浓度增加,抗氧化活性增强,野木瓜粗多糖(CCCPs)对·OH和O2的清除能力比精多糖(FCCPs)和均多糖(CCP1)强。

关键词: 野木瓜, 多糖, 分离, 纯化, 抗氧化

Abstract: Crude Chaenomeles cathayensis polysaccharides (CCCPs) were isolated with hot water extraction followed by ethanol precipitation.The fine C.cathayensis polysaccharides (FCCPs) were obtained by deproteinization,decolorization and dialysis.FCCPs were further separated to afford a main fraction CCP1 by anion exchange column chromatography on DEAE-cellulose and Sepharose CL-6B gel filtration column chromatography.The composition of CCP1 was determined to be rhamnose,arabinose,fructose,mannitose,glucose in a molar ratio of 0.034:0.228:0.045:0.055:0.638 using high performance liquid chromatography (HPLC).The antioxidant activity assay revealed that C.cathayensis polysaccharides with different purity showed different antioxidant activities.The antioxidant activities of C.cathayensis polysaccharides increased with the increasing of the concentrations of polysaccharides.The results showed that CCCPs had higher scavenging efficiency on hydroxyl radical (·OH) and superoxide anion free radical (O2) than FCCPs and CCP1.

Key words: Chaenomeles cathayensis, polysaccharide, separation, purification, antioxidant activity

中图分类号: 

R285.5