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• 基础研究 •    下一篇

黑果枸杞中一种花色苷类物质的分离纯化及抗氧化活性的研究

唐骥龙1,闫亚美2,曹有龙2,曾晓雄1,孙怡1,胡冰1,周莉1   

  1. 1. 南京农业大学
    2. 国家枸杞工程技术研究中心
  • 收稿日期:2015-10-01 修回日期:2016-06-21 出版日期:2016-12-25 发布日期:2016-08-30
  • 通讯作者: 闫亚美 E-mail:yanyamei@163.com
  • 基金资助:
    宁夏自然科学基金;宁夏农林科学院先导项目;江苏高校优势学科建设工程资助项目

Purification and antioxidant activity of one anthocyanin in Lycium ruthenicum Murray

  • Received:2015-10-01 Revised:2016-06-21 Online:2016-12-25 Published:2016-08-30
  • Contact: yamei yan E-mail:yanyamei@163.com

摘要: 以黑果枸杞为原料,利用AKTA Purifier蛋白纯化系统分离纯化(色谱条件:YMC-PACK ODS-A色谱柱,流动相为体积分数4%甲醇/19%乙腈/1%甲酸溶液,等度洗脱,流速2 mL/min)得到1种纯度97%以上的花色苷物质。通过质谱和核磁共振分析,鉴定该花色苷物质为矮牵牛素3-O-芸香糖(反式-香豆酰基)-5-O-葡萄糖苷(petunidin 3-O-[rhamnopyranosyl-(trans-p-coumaroyl)]-5-O-[β-D-glucopyranoside])。体外抗氧化活性分析表明该花色苷物质具有显著的DPPH自由基和超氧阴离子自由基清除能力。

关键词: 黑果枸杞, 花色苷, 纯化, 结构鉴定, 抗氧化活性

Abstract: One kind of anthocyanin was purified from Lycium ruthenicum Murray by AKTA purifier protein purification system (Chromatographic conditions: YMC-PACK ODS-A column and methanol(4%)/acetonitrile(19%)/formic acid (1%) solution as mobile phase at a flow rate of 2 ml/min). The purified anthocyanin was identified as petunidin 3-O-[rhamnopyranosyl-(trans-p-coumaroyl)]-5-O-[β-D-glucopyranoside] by mass spectrometry and nuclear magnetic resonance spectrometry. Furthermore, the purified anthocyanin showed potent scavenging activities on 1,1-diphenyl-2-picrylhydrazyl free radical and superoxide anion in terms of antioxidant assays in vitro.

Key words: Lycium ruthenicum Murray, anthocyanin, purification, structural identification, antioxidant activity

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