食品科学 ›› 2009, Vol. 30 ›› Issue (21): 144-147.doi: 10.7506/spkx1002-6300-200921034

• 基础研究 • 上一篇    下一篇

环糊精及其衍生物与亮蓝包结作用的荧光光谱研究

董峰光,姜子涛* ,李 荣,朱 姁   

  1. 天津商业大学生物技术与食品科学学院,天津市食品生物技术重点实验室
  • 收稿日期:2009-01-13 出版日期:2009-11-01 发布日期:2010-12-29
  • 通讯作者: 姜子涛 E-mail:ztjiang@yahoo.com
  • 基金资助:

    天津市自然科学基金项目(043604511)

Spectrofluorimetric Study of Inclusion of Brilliant Blue with β-Cyclodextrin and Its Derivatives

DONG Feng-guang,JIANG Zi-tao*,LI Rong,ZHU Xu   

  1. Tianjin Key Laboratory of Food Biotechnology, College of Biotechnology and Food Science, Tianjin University of Commerce,
    Tianjin 300134, China
  • Received:2009-01-13 Online:2009-11-01 Published:2010-12-29
  • Contact: JIANG Zi-tao*, E-mail:ztjiang@yahoo.com

摘要:

采用荧光光谱法研究β- 环糊精(β-CD)及其衍生物羟乙基- β- 环糊精(HE- β-CD)、羟丙基- β- 环糊精(HP-β-CD)与亮蓝的包结作用。Hildebrand-Benesi 方程表明包结反应的摩尔比为1:1,包结能力依次为:β-CD < HE-β-CD < HP- β-CD。确定了最佳反应时间为30min,最佳反应pH 值范围为4~10。

关键词: 环糊精, 亮蓝, 包结, 荧光光谱

Abstract:

Spectrofluorimetric technique was employed to study the inclusion interaction of brilliant blue (BB) with β - cyclodextrin (β-CD) and its derivatives (CDs), including mono[2-O-(2-hydroxyethyl)]-β-CD (HE-β-CD) and mono[2-O- (2-hydroxypropyl)] -β-CD (HP-β-CD). Linear Hildebrand-Benesi plots with a high correlation coefficient demonstrated that CDs could react with BB to form a 1:1 host-guest complex. A significant enhancement of fluorescence intensity in BB was observed due to its inclusion interaction with β-CD and its CDs which exhibited an enhancement effect in the following order of β-CD < HE-β-CD < HP-β-CD. In addition, the optimum inclusion reaction time and pH value were determined to be 30 min and from 4 to 10, respectively.

Key words: cyclodextrin, brilliant blue (BB), inclusion, fluorescence

中图分类号: