Inclusion complexes of azadirachtin with native and methylated cyclodextrins: solubilization and binding ability

被引:59
作者
Liu, Y [1 ]
Chen, GS
Chen, Y
Lin, J
机构
[1] Nankai Univ, Dept Chem, State Key Lab Elementoorgan Chem, Tianjin 300071, Peoples R China
[2] Yunnan Univ, Dept Appl Chem, Kunming 650091, Peoples R China
基金
中国国家自然科学基金;
关键词
azadirachtin; cyclodextrin; inclusion complex; molecular recognition;
D O I
10.1016/j.bmc.2005.03.051
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
The inclusion complexation behavior of azadirachtin with several cyclodextrins and their methylated derivatives has been investigated in both solution and the solid state by means of XRD, TG-DTA, DSC, NMR, and UV-vis spectroscopy. The results show that the water solubility of azadirachtin was obviously increased after resulting inclusion complex with cyclodextrins. Typically, P-cyclodextrin (P-CD), dimethyl-p-cyclodextrin (DM beta CD), permethyl-beta-cyclodextrin (TM beta CD), and hydroxypropyl-beta-cyclodextrin (HP beta CD) are found to be able to solubilize azadirachtin to high levels up to 2.7, 1.3, 3.5, and 1.6 mg/mL (calculated as azadirachtin), respectively. This satisfactory water solubility and high thermal stability of the cyclodextrin-azadirachtin complexes, will be potentially useful for their application as herbal medicine or healthcare products. (c) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码:4037 / 4042
页数:6
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