华南理工大学学报(自然科学版) ›› 2010, Vol. 38 ›› Issue (12): 110-114.doi: 10.3969/j.issn.1000-565X.2010.12.021

• 食品科学与技术 • 上一篇    下一篇

阿拉伯糖阿魏酸酯体外清除羟自由基

林奇龄1 温其标1 欧仕益2 吴磊燕1 赖富饶1   

  1. 1. 华南理工大学 轻工与食品学院, 广东 广州 510640; 2. 暨南大学 食品科学与工程系, 广东 广州 510632
  • 收稿日期:2009-11-23 修回日期:2010-09-03 出版日期:2010-12-25 发布日期:2010-12-25
  • 通信作者: 欧仕益(1963-),男,博士,教授,主要从事食品化学和功能性食品研究. E-mail:tosy@jnu.edu.cn
  • 作者简介:林奇龄(1978-),男,博士,主要从事农副产品综合利用研究.E-mail:lin_qiling@tom.com
  • 基金资助:

    广东高校科技成果转化重大项目(cgzhzd0709)

Scavenging of In Vitro Hydroxyl Free Radical Using Feruloyl-Arabinose

Lin Qi-ling1  Wen Qi-biao1  Ou Shi-yi2  Wu Lei-yan1  Lai Fu-rao1   

  1. 1.School of Light Industry and Food Sciences,South China University of Technology,Guangzhou 510640,Guangdong,China;2.Department of Food Science and Technology,Jinan University,Guangzhou 510632,Guangdong,China
  • Received:2009-11-23 Revised:2010-09-03 Online:2010-12-25 Published:2010-12-25
  • Contact: 欧仕益(1963-),男,博士,教授,主要从事食品化学和功能性食品研究. E-mail:tosy@jnu.edu.cn
  • About author:林奇龄(1978-),男,博士,主要从事农副产品综合利用研究.E-mail:lin_qiling@tom.com
  • Supported by:

    广东高校科技成果转化重大项目(cgzhzd0709)

摘要: 采用稀盐酸水解玉米麸皮得到低聚糖阿魏酸酯(FOs),经D301大孔树脂的除杂和聚酰胺柱层析的分离获得FOs中的F-Ara组分,分析了其纯度和结构,并比较了该组分与阿魏酸(FA)体外清除·OH的能力.结果表明:采用D301大孔树脂和聚酰胺柱层析法从玉米麸皮酸解物中分离得到的F-Ara纯度接近HPLC色谱纯级,其体外清除·OH能力在低浓度(2~6mmol/L)时与FA相似,在高浓度(6~10mmol/L)时则明显比FA强;当浓度为10mmol/L时,F-Ara对.OH的清除率达72.9%,而FA仅为62.4%.由此可见,F-Ara是一种天然高效的自由基清除剂.

关键词: 水解, 纯化, 分离, 阿拉伯糖阿魏酸酯, 羟自由基, 清除

Abstract:

Feruloylated oligosaccharides(FOs) were prepared by the hydrolysis of maize bran in dilute hydrochloric acid,and the component F-Ara was obtained by means of D301 macroporous resin chromatography and poly-amide resin purification from FOs.Then,the purity and structure of F-Ara were analyzed,and the capability of F-Ara for ·OH scavenging in vitro was compared with that of ferulic acid(FA).The results show that(1) the purity of F-Ara approaches HPLC-purity level after the two above-mentioned resin separation processes;(2) at low concentration(2~6mmol/L),F-Ara is similar to FA in terms of ·OH scavenging in vitro,while at high concentration(6~10mmol/L),it is more efficient than FA;and(3) at the concentration of 10 mmol/L,the percentage of scavenging ·OH by F-Ara reaches 72.9%,while that of FA is only 62.4%.Thus,it is concluded that F-Ara is a natural and efficient free radical scavenger.

Key words: hydrolysis, purification, separation, feruloyl-arabinose, hydroxyl free radical, scavenging