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中国药学(英文版)

• 【研究论文】 • 上一篇    下一篇

芡实多糖理化性质及抗氧化活性研究

陈蓉1, 薛满1, 陈伟2, 吴启南3*   

  1. 1. 苏州市食品药品检验所, 江苏 苏州 215104
    2. 苏州市中医医院, 江苏 苏州 215009
    3. 南京中医药大学 江苏省中药方剂重点实验室, 江苏 南京 210046
  • 收稿日期:2014-02-17 修回日期:2014-05-13 出版日期:2014-08-31 发布日期:2014-05-20
  • 通讯作者: Tel.: 86-25-85811507, Fax: 86-25-85811524
  • 基金资助:
    National Key Research and Development Program of the Ministry of Science and Technology of China during the “12th Five-Year Plan” (Grant No. 2011BAI04B06).

Evaluation of the physicochemical properties and antioxidant activities of polysaccharides from Semen Euryales

Rong Chen1, Man Xue1, Wei Chen2, Qinan Wu3*   

  1. 1. Suzhou Institute for Food and Drug Control, Jiangsu Suzhou 215104, China
    2. Suzhou Hospital of Traditional Chinese Medicine, Jiangsu Suzhou 215009, China
    3. Jiangsu Key Laboratory for TCM Formulae Research, Nanjing University of Chinese Medicine, Jiangsu Nanjing 210046, China
  • Received:2014-02-17 Revised:2014-05-13 Online:2014-08-31 Published:2014-05-20
  • Contact: Tel.: 86-25-85811507, Fax: 86-25-85811524
  • Supported by:
    National Key Research and Development Program of the Ministry of Science and Technology of China during the “12th Five-Year Plan” (Grant No. 2011BAI04B06).

摘要:

采用水提醇沉、脱蛋白等工艺制备中药芡实多糖, 并通过纤维素柱和葡聚糖凝胶柱分离纯化。精多糖分子量15 367 Da, 其单糖组成为葡萄糖:鼠李糖 (0.0142: 0.0026), 理化反应和红外光谱均符合多糖特征。体外抗氧化实验表明, 芡实多糖能够显著清除DPPH、超氧阴离子和过氧化氢等自由基, 并具有较强还原力。体内抗氧化实验显示, 芡实多糖能够显著提高D-半乳糖所致衰老小鼠的SODCATGSH-Px水平, 降低MDA水平。结果表明,芡实多糖具有广泛的研究前景

关键词: 芡实, 多糖, 理化性质, 抗氧化活性

Abstract:

Polysaccharides were isolated from Semen Euryales by water extraction, alcohol precipitation and deproteinization. A refined polysaccharide, named EPJ, was separated into nine fractions by DEAE-52 cellulose chromatography and one of them was separated into two fractions by Sephadex G-100 column. The molecular weight of EPJ was determined to 15 367 Da and the monosaccharide composition was mainly glucose and rhamnose with the molar ratio of 5.46:1. The FT-IR spectra showed carbohydrate-related absorbance of polysaccharide functional groups. In vitro assay showed EPJ could significantly scavenge DPPH radical, superoxide anion, hydrogen peroxide and exhibited a strong reducing power. In vivo assay indicated that EPJ was effective in a D-galactose induced aging mice model. Results showed EPJ significantly inhibited formation of MDA and increased the activities of SOD, CAT, GSH-Px in a dose-dependent manner in mice tissues. The findings obtained from this study indicated that polysaccharides from Semen Euryales could be explored for a wide prospect of benefit.

Key words: Semen Euryales, Polysaccharide, Physicochemical properties, Antioxidant activities

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