食品科学 ›› 2006, Vol. 27 ›› Issue (7): 86-88.

• 基础研究 • 上一篇    下一篇

荔枝多酚的分离制备及清除DPPH活性

 熊何健, 郑建华, 吴国宏, 王美贵   

  1. 集美大学生物工程学院
  • 出版日期:2006-07-15 发布日期:2011-09-29

Preparation of Lichee Polyphenols and Its DPPH Radical Scavenging Activity

 XIONG  He-Jian, ZHENG  Jian-Hua, WU  Guo-Hong, WANG  Mei-Gui   

  1. College of Biological Engineering, Jimei University, Xiamen 361021, China
  • Online:2006-07-15 Published:2011-09-29

摘要: 本文对荔枝壳中多酚类物质的分离制备条件及其清除DPPH活性进行研究。荔枝壳用8倍体积(V/W)50%的丙酮溶液室温下浸提2次,每次浸提2h,回收溶剂,荔枝多酚粗提物得率为34.2%。粗提物经AB-8型树脂柱层析纯化,30%乙醇洗脱组分的多酚回收率为86.8%,纯度为30.0%,该组分清除DPPH的IC50值为4.17μg/ml。

关键词: 荔枝多酚, 制备, 二苯基苦基苯肼(DPPH)自由基

Abstract: In this paper, the preparation technology of extracting polyphenols from lichee hulls and its DPPH radical scavenging activity were studied. Lichee hulls were ground, then infused with 8 volumes(V/W) of 50% acetone solution at room temperature for 2 times, 2h per time. Under these conditions, the yield of crude polyphenols was 34.2%. The crude polyphenols was purified with AB-8 type resin, the purity of the 30% ethanol elution part, with the reclaim rate of polyphenols was 85.5%, and its IC50 value on scavenging DPPH radical was 4.17μg/ml.

Key words:  , lichee polyphenol; preparation; 2, 2-diphenyl-1-picrylhydrazyl (DPPH);