Journal of South China University of Technology (Natural Science Edition) ›› 2010, Vol. 38 ›› Issue (12): 110-114.doi: 10.3969/j.issn.1000-565X.2010.12.021

• Food Science & Technology • Previous Articles     Next Articles

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）

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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