کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1389308 | 982863 | 2007 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
NMR Studies on the interaction between (−)-epigallocatechin gallate and cyclodextrins, free and bonded to silica gels
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: NMR Studies on the interaction between (−)-epigallocatechin gallate and cyclodextrins, free and bonded to silica gels NMR Studies on the interaction between (−)-epigallocatechin gallate and cyclodextrins, free and bonded to silica gels](/preview/png/1389308.png)
چکیده انگلیسی
The interaction between (−)-epigallocatechin-3-gallate (EGCG) and β- or γ-cyclodextrin (CD), in free solution and bonded to silica beads, has been studied by 1H HR-MAS NMR spectroscopy. The chromatographic retardation of EGCG on columns packed with CD-silica beads was shown to be due to the interaction of EGCG with the CD ligands because no nonspecific interaction with the silica gel could be observed. EGCG forms a tighter complex with β-CD than with γ-CD and NMR data obtained from hydroxy protons together with mm2 calculations suggest that for β-CD intermolecular hydrogen bonding, in addition to hydrophobic interaction, stabilizes the complex.
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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Research - Volume 342, Issue 6, 7 May 2007, Pages 843–850
Journal: Carbohydrate Research - Volume 342, Issue 6, 7 May 2007, Pages 843–850
نویسندگان
Jun Xu, Tianwei Tan, Jan-Christer Janson, Lennart Kenne, Corine Sandström,