Effects of water and alcohol on the formation of inclusion complexes ofd-limonene and cyclodextrins
| Autor: | Takeshi Furuta, Akira Yasunishi, Atsuyuki Miyamoto, Hiroshi Hirano, Hidefumi Yoshii |
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| Rok vydání: | 1993 |
| Předmět: | |
| Zdroj: | Supramolecular Chemistry. 1:321-325 |
| ISSN: | 1029-0478 1061-0278 |
| Popis: | Systematic studies have been carried out on the role of water and alcohol in the formation of inclusion complexes between d-limonene and α-, β- and γ-cyclodextrin (CD) by a micro-aqueous method. The inclusion complex was barely formed at zero water content for all CDs. Above the specific water content for each CD, formation of the inclusion complex correlated well with an equation which was derived on the autocatalytic assumption for the inclusion phenomenon. The inclusion complex correlated well with an equation which was derived on the autocatalytic assumption for the inclusion phrnomenon. The minimum water content, which was defined as 1% of the maximum concentration of the inclusion complex formed, coincided with the number of water molecules inside the cavity of the CD. In the presence of ethanol, a significant amount of the inclusion complex was formed for β- and γ-CD/limonene systems, particularly at lower moisture content. However, for α-CD the inclusion fraction decreased significantly i... |
| Databáze: | OpenAIRE |
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