Inclusion phenomena of clove oil with alpha-, beta-, gamma- and heptakis (2,6-di-O-methyl)-beta-cyclodextrin. Natural product research [Nat Prod Res] Journal article | | Title | Inclusion phenomena of clove oil with alpha-, beta-, gamma- and heptakis (2,6-di-O-methyl)-beta-cyclodextrin. | | Author(s) | Song LX, Xu P, Wang HM, Yang Y | | Institution | Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, China. | | Source | Nat Prod Res 2009 Mar 19.:1-12. | | Abstract | Inclusion interactions of alpha-, beta-, gamma- and heptakis (2,6-di-O-methyl)-beta-cyclodextrin (DMbeta-CD) as hosts with clove oil (an impure eugenol, I-Eug) as guest in aqueous solution were investigated by fluorescence emission spectra. The binding constants of different hosts to I-Eug in aqueous solution decreased in the order: gamma- > beta- > DMbeta- > alpha-CD. Two solid supramolecular inclusion complexes, I-Eug-beta-CD and I-Eug-gamma-CD, were prepared and characterised by nuclear magnetic resonance, powder X-ray diffraction, infrared spectroscopy, and thermogravimetric analysis. All the results proved the formation of I-Eug-CD. The inclusion differences between I-Eug and pure eugenol were discussed. The relative contents of the main component eugenol (Eug), second component (eugenol acetate, Eua) and others in I-Eug were found to be fairly different before and after being included by beta-CD, according to the data obtained from high performance liquid chromatography. This could be a practical method to extract the effective components (Eug and Eua) from I-Eug. | | Language | ENG | | Pub Type(s) | JOURNAL ARTICLE
| | PubMed ID | 19306153 |
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