A new and simple method for calculating the inclusion ratio of cyclodextrin supramolecules

Authors

ZHANG Weifeng, School of Chemical and Biological Engineering, Changsha University of Science & Technology, Changsha, Hunan 410114, China
LUO Xin, School of Chemical and Biological Engineering, Changsha University of Science & Technology, Changsha, Hunan 410114, China
WANG Jianhui, School of Chemical and Biological Engineering, Changsha University of Science & Technology, Changsha, Hunan 410114, China
WANG Min, School of Chemical and Biological Engineering, Changsha University of Science & Technology, Changsha, Hunan 410114, China
LIU Long, School of Chemical and Biological Engineering, Changsha University of Science & Technology, Changsha, Hunan 410114, China
WANG Chengfeng, School of Chemical and Biological Engineering, Changsha University of Science & Technology, Changsha, Hunan 410114, China
NING Jingheng, School of Chemical and Biological Engineering, Changsha University of Science & Technology, Changsha, Hunan 410114, China

Abstract

Based on UV absorbance, a new and simple subtraction method was proposed for the calculation of the inclusion ratio, and it was proved to be equal in number to the classical molar ratio or phase solubility method. Using any kind of these three methods, the results always showed that the inclusion ratio of this complex was 11, which indicated that this kind of supramolecular complex was formed through an inclusion interaction between 1 host molecule (β-cyclodextrin) and 1 guest molecule (sorbic acid). Sincethe subtraction methodadopted a repetitive measurement and took the averaged, its result was more accurate than the molar ratio method; meanwhile, due to the advantage of less interference factors and especiallyno need of drawing a complicated phase diagram, its calculation process was much simpler than the phase solubility method.

Publication Date

9-28-2017

First Page

5

Last Page

8

DOI

10.13652/j.issn.1003-5788.2017.09.002

Recommended Citation

Weifeng, ZHANG; Xin, LUO; Jianhui, WANG; Min, WANG; Long, LIU; Chengfeng, WANG; and Jingheng, NING (2017) "A new and simple method for calculating the inclusion ratio of cyclodextrin supramolecules," Food and Machinery: Vol. 33: Iss. 9, Article 2.
DOI: 10.13652/j.issn.1003-5788.2017.09.002
Available at: https://www.ifoodmm.cn/journal/vol33/iss9/2

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