天然产物研究与开发 ›› 2022, Vol. 34 ›› Issue (6): 909-915.doi: 10.16333/j.1001-6880.2022.6.001

• 研究论文 •    下一篇

高速逆流色谱分离制备青桑葚中原花青素及其抗氧化活性研究

汪玉玲,蔡为荣*,卓允允,王晴晴   

  1. 安徽工程大学生物与食品工程学院,芜湖 241000
  • 出版日期:2022-06-28 发布日期:2022-06-29
  • 基金资助:
    安徽省重点研发项目面上攻关(202004a06020022);安徽省教育厅重大项目(KJ2018ZDO13)

Separation of procyanidins from green mulberry by high-speed countercurrent chromatography and their antioxidant activity

WANG Yu-ling,CAI Wei-rong*,ZHUO Yun-yun,WANG Qing-qing   

  1. College of Biology and Food Engineering,Anhui Polytechnic University,Wuhu 241000,China
  • Online:2022-06-28 Published:2022-06-29

摘要:

以青桑葚为原材料,经过除杂富集得到原花青素粗提物后,对粗提物采用高速逆流色谱(high-speed countercurrent chromatography,HSCCC)分离纯化;再对HSCCC分离所得各组分成分进行分析鉴定和抗氧化活性研究。得出青桑葚原花青素粗提物经HSCCC分离出5个组分,其中F1含儿茶素、原花青素B2和原花青素A1;F2中含表儿茶素没食子酸酯;F3中含原花青素B2;F4中含表没食子儿茶素;F5中为表儿茶素。分离所得5个组分的都具有一定的抗氧化活性,其中F5和F4对DPPH自由基和ABTS+自由基的清除能力接近于同浓度Vc,羟自由基清除能力优于同浓度Vc。文章首次采用高速逆流色谱法对青桑葚中原花青素进行分离纯化,可为青桑葚中活性物质研究与开发提供有益技术支持。

关键词: 高速逆流色谱, 青桑葚, 原花青素, 抗氧化活性

Abstract:

Using green mulberry as raw material,after removing impurities and enriching to obtain crude procyanidin extract,the crude extract was separated and purified by high-speed countercurrent chromatography (HSCCC) and oxidative activity studies.It was concluded that the crude extract of green mulberry procyanidins was separated into five components by HSCCC.Among them,F1 contained catechin,procyanidin B2 and procyanidin A1;F2 contained epicatechin gallate;F3 contained procyanidin B2;F4 contained Epigallocatechin;epicatechin in F5.The 5 components obtained by separation all have certain antioxidant activity,among which the scavenging capacity of F5 and F4 on DPPH radical and ABTS+ radical is close to Vc in the same concentration,and the scavenging capacity on hydroxyl radical is better than Vc in  the same concentration.This paper used HSCCC for the first time to separate and purify proanthocyanidins in green mulberry,which can provide useful technical support for the research and development of active substances in green mulberry.

Key words: high speed countercurrent chromatography, green mulberry, procyanidins, antioxidant activity

中图分类号:  TQ041+.7