›› 2013, Vol. 25 ›› Issue (4): 0-872.

• 论文 •    

微波辅助大蒜多糖的提取及其抗氧化活性的研究

邵金华1, 李涛2,杨佳1   

  1. 1湖南科技学院 生化系,湖南 永州425100;2天津农学院 基础科学系,天津 300384
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2013-07-25 发布日期:2013-07-25

Study on microwave-assisted extraction of garlic polysaccharide and its antioxidant activity

SHAO Jin-hua;LI Tao;YANG Jia   

  1. 1Department of Biochemistry, Hunan University of Science and Engineering, Yongzhou 425100,China;2Basic Science Department, Tianjin Agricultural University, Tianjin 300384, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2013-07-25 Published:2013-07-25

摘要: 研究了微波辅助大蒜多糖的提取工艺及抗氧化活性。结果表明:最佳功率为300 W,提取温度为65℃,提取时间为8 min,料液比1∶7(g·mL-1);大蒜多糖有一定的清除DPPH和OH·自由基的作用,与VC相比,大蒜多糖对DPPH和OH·自由基的清除效果要差;但大蒜多糖对菜籽油的抗氧化能力较VC强,能够有效抑制菜籽油的氧化。

关键词: 微波辅助提取, 大蒜多糖, 抗氧化活性

Abstract: The microwave-assisted extraction of polysaccharide from garlic was studied in this paper. Moreover, we also investigated the antioxidant feature of the extracted garlic polysaccharide. The optimum extraction conditions were that 300 W of microwave power, 8 min of extraction time and the rate between material and solvent was 1∶7(g·mL-1). Although the garlic polysaccharide showed certain scavenging effect on the DPPH and hydroxyl radical, but it was not as good as vitamin C. However, the garlic polysaccharide was more effective than vitamin C in protecting the camellia seed oil from being oxidized.

Key words: microwave-assisted extraction, garlic polysaccharide, antioxidant activity