食品科学

• 基础研究 • 上一篇    下一篇

马兰中酚类的分离纯化及其抑制蛋白糖基化的研究

朱晓琳1,刘跃钧2,陆 敏1,吕丽爽1,*   

  1. 1.南京师范大学金陵女子学院,江苏 南京 210097;2.浙江省丽水市林业科学研究所,浙江 丽水 323000
  • 出版日期:2015-03-15 发布日期:2015-03-17

Separation, Purification and Inhibitory Effect on Protein Glycosylation of Phenols in Kalimeris

ZHU Xiaolin1, LIU Yuejun2, LU Min1, LÜ Lishuang1,*   

  1. 1. Ginling College, Nanjing Normal University, Nanjing 210097, China;
    2. Lishui Forestry Research Institute of Zhejiang Province, Lishui 323000, China
  • Online:2015-03-15 Published:2015-03-17

摘要:

采用大孔吸附树脂对马兰粗提物进行分离,得到4 组含有多酚的洗脱组分(F1、F2、F3、F4)。用Sephadex LH-20色谱柱对F2进一步纯化,得到3,5-二咖啡酰奎宁酸和3,4,5-三咖啡酰奎宁酸。通过建立牛血清白蛋白-甲基乙二醛(bovine serum albumin-methylglyoxal,BSA-MGO)和牛血清白蛋白-乙二醛(bovine serum albuminglyoxal,BSA-GO)的蛋白质糖基化反应模型,分析各所得组分抑制蛋白质糖基化的能力。结果表明:多酚含量依次为F2>F1>F3>F4,马兰各组分对两种模型引起的蛋白质糖基化均具有良好的抑制效果。在BSA-GO的反应模型中,抑制蛋白质糖基化效果为3,5-二咖啡酰奎宁酸>F2>F3>F1>马兰粗提取物>F4,BSA-MGO的反应模型中,抑制蛋白质糖基化效果为3,5-二咖啡酰奎宁酸>F2>马兰粗提取物>F1>F4>F3,此结果与F2组分中分离得到的3,5-二咖啡酰奎宁酸具有良好的抑制效果一致。结论:马兰中分离得到的多酚类物质——3,5-二咖啡酰奎宁酸具有很强的抑制MGO/GO引发的蛋白糖基化功能。

关键词: 马兰, 多酚, 3, 5-二咖啡酰奎宁酸, 蛋白质非酶糖基化

Abstract:

Macroporous resin was used to separate the crude extract of Kalimeris and four polyphenol-rich fractions (F1, F2,
F3, and F4) were obtained. F2 was further purified by Sephadex LH-20 column chromatography and 3,5-dicaffeoylquinic
acid and 3,4,5-tricaffeoylquinic acid were obtained. Using the protein glycosylation reaction models of bovine serum
albumin-methylglyoxal (BSA-MGO) and bovine serum albumin-glyoxal (BSA-GO), we analyzed the inhibitory activity of
each component on protein glycosylation. The results showed that the content of polyphenols was in the order of F2 > F1 >
F3 > F4, and all the four fractions had good inhibitory effects on protein glycosylation in both models. In BSA-GO reaction
model, the inhibitory capacity against protein glycosylation was in the order of 3,5-dicaffeoylquinic acid > F2 > F3 > F1 >
crude extract of Kalimeris > F4. In BSA-MGO reaction model, the inhibitory capacity against protein gly cosylation was in
the order of 3,5-dicaffeoylquinic acid > F2 > crude extract of Kalimeris > F1 > F4 > F3. These results are consistent with the
inhibitory effect of 3,5-dicaffeoylquinic acid separated from F2. The 3,5-dicaffeoylquinic acid as a phenolic compound from
Kalimeris had a potent inhibitory effect on protein glycosylation induced by MGO or GO.

Key words: Kalimeris, polyphenols, 3,5-dicaffeoylquinic acid, protein non-enzymatic glycosylation

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