PREPARATION AND SPECTRA PROPERTIES OF INCLUSION COMPLEXES OF VITAMIN E WITH β-CYCLODEXTRIN
PREPARATION AND SPECTRA PROPERTIES OF INCLUSION COMPLEXES OF VITAMIN E WITH β-CYCLODEXTRIN
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DOI：
10.1111/j.1745-4549.2008.00327.x
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发表时间：
2010-02-01
影响因子：
2.5
通讯作者：
Yang, Ling
中科院分区：
文献类型：
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作者：
Jiao, Fei Peng;Chen, Xiao Qing;Yang, Ling
采用溶液法、超声法和微波法制备了β -环糊精(β - cd) -维生素E包合物。考察了温度、包合时间和VE与cd的摩尔比对包合率的影响。采用紫外光谱、傅里叶变换红外光谱和荧光光谱对包合物的光谱性质进行了表征。实验结果证实VE与β - cd存在1:1包合物。用荧光光谱法测定了包合物的形成常数。可以看出，随着β - cd浓度的增加，荧光信号明显增加和增强。
Preparation of the inclusion complex of vitamin E (VE) with beta-cyclodextrin (beta-CD) was carried out by three kinds of methods including solution, ultrasonic and microwave radiation. The influence of temperature, inclusion time and molar ratio of VE to beta-CD on the inclusion rate was investigated. The spectrum properties of inclusion complex were characterized by the ultraviolet, Fourier transformation-infrared spectroscopy and fluorescence spectrums. The experiment results confirmed the existence of 1:1 inclusion complex of VE with beta-CD. The formation constant of inclusion complex was also determined by fluorescence spectrometry. It can be seen that fluorescence signals are significantly increased and enhanced with increasing concentration of beta-CD.