食品科学

• 基础研究 • 上一篇    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

唐骥龙1,闫亚美1,2,*,曹有龙2,*,曾晓雄1,孙 怡1,胡 冰1,周 莉1   

  1. 1.南京农业大学食品科技学院,江苏 南京 210095;2.国家枸杞工程技术研究中心,宁夏 银川 750004
  • 出版日期:2016-08-15 发布日期:2016-08-30

Purification and Antioxidant Activity of an Anthocyanin from Lycium ruthenicum Murray

TANG Jilong1, YAN Yamei1,2,*, CAO Youlong2,*, ZENG Xiaoxiong1, SUN Yi1, HU Bing1, ZHOU Li1   

  1. 1. College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China;
    2. National Wolfberry Engineering Research Center, Yinchuan 750004, China
  • Online:2016-08-15 Published:2016-08-30

摘要:

以黑果枸杞为原料,利用ÄKTA Purifier蛋白纯化系统分离纯化得到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(petunidin3-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1,1-二苯基-2-三硝基苯肼(1,1-diphenyl-2-picrylhydrazyl,DPPH)自由基和超氧阴离子自由基(O2 - ·)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:

An anthocyanin compound with over 97% purity was purified from fruits of Lycium ruthenicum Murray with an
ÄKTA protein purification system (equipped with a YMC-PACK ODS-A column with methanol: acetonitrile: formic acid
in water (4:19:1, V/V) 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 anthocyanin showed potent scavenging activities on 1,1-diphenyl-2-picrylhydrazyl
(DPPH) and superoxide anion free radicals in antioxidant assays in vitro.

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

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