食品科学 ›› 2009, Vol. 30 ›› Issue (22 ): 27-32.doi: 10.7506/spkx1002-6300-200922002

• 工艺技术 • 上一篇    下一篇

花生壳水溶性膳食纤维不同提取工艺及其抗氧化活性研究

于丽娜1,杨庆利1 ,* ,毕 洁1,张初署1,朱 凤1,禹山林1,杜方岭2   

  1. 1.山东省花生研究所 2.山东省农副产品加工研究所
  • 收稿日期:2009-06-15 出版日期:2009-11-15 发布日期:2010-12-29
  • 通讯作者: 杨庆利1 ,* E-mail:rice407@sohu.com
  • 基金资助:

    国家“863”计划项目(2007AA10Z189;2006AA10A114);“十一五”国家科技支撑计划项目(2008BAD97B04);现代农业产业技术体系专项资金资助项目(nycytx-19);农业部农业公益性行业科研专项项目(nyhyzx07-014)

Extraction and Antioxidant Activity Evaluation of Water Soluble Dietary Fiber from Peanut Hull

YU Li-na1,YANG Qing-li1,*,BI Jie1,ZHANG Chu-shu1,ZHU Feng1,YU Shan-lin1,DU Fang-ling2   

  1. (1. Shandong Peanut Research Institute, Qingdao 266100, China;
    2. Shandong Agricultural Byproducts Processing Research Institute, Jinan 250100, China)
  • Received:2009-06-15 Online:2009-11-15 Published:2010-12-29
  • Contact: YANG Qing-li1,*, E-mail:rice407@sohu.com

摘要:

以花生壳为原料,经粉碎过筛后,采用一次酸提、二次酸提、三次酸提、微波提取和超声波提取等方法提取其中的功能性成分之一——水溶性膳食纤维(SDF),测定每种方法的提取率和所得到的SDF 中的非淀粉性多糖(NSP)的含量,并计算它们的综合评分。结果表明:在这五种提取方法中,三次酸提的提取率最大,微波提取的SDF 中NSP 的百分含量最大,综合评分是三次酸提最大。同时,还研究了SDF 的铁还原力、钼还原力、清除DPPH 自由基、超氧阴离子自由基和羟自由基等五种抗氧化活性。

关键词: 花生壳, 水溶性膳食纤维, 提取工艺, 抗氧化活性

Abstract:

Water soluble dietary fiber (SDF) is one of the main functional components in peanut hull. In order to obtain this component, one-stage, two-stage and three-stage extraction using citric acid alone, microwave-assisted extraction and ultrasonic extraction were adopted and their effectiveness was comprehensively assessed in terms of two indicators, including SDF extraction yield and non-starch polysaccharide (NSP) content in SDF. Results showed that among these extractions, three-stage extraction presented the highest SDF extraction yield and the largest weighed score of the above indicators, and obtained using microwave-assisted extraction exhibited the highest NSP content in SDF. In addition, SDF was found to have significant radical scavenging capacity against hydroxyl, superoxide anion and DPPH free radicals and excellent ferric-reducing power and molybdenum- reducing power.

Key words: peanut hull, water soluble dietary fiber, extraction, antioxidant activity

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