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231223s2008 xx |||||o 00| ||eng c |
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|a 10.1002/mrc.2198
|2 doi
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|a pubmed24n0594.xml
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|a (DE-627)NLM178033847
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|a (NLM)18318450
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Ishizu, Takashi
|e verfasserin
|4 aut
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|a Diastereomeric difference of inclusion modes between (-)-epicatechin gallate, (-)-epigallocatechin gallate and (+)-gallocatechin gallate, with beta-cyclodextrin in aqueous solvent
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|c 2008
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 20.05.2008
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|a Date Revised 16.11.2017
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|a published: Print
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|a ErratumIn: Magn Reson Chem. 2008 Oct;46(10):995
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|a Citation Status MEDLINE
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|a 2008 John Wiley & Sons, Ltd.
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|a Inclusion complexes of (-)-epicatechin gallate (ECg) as well as (+)-gallocatechin gallate (GCg) and beta-cyclodextrin (beta-CD) in an aqueous solution were investigated using several NMR techniques and a computational method. ECg and EGCg formed a 1:1 complex with beta-CD, in which the A ring and a portion of the C ring were included from the wide secondary hydroxyl group side of the beta-CD cavity, and the B and B' rings were left outside the cavity. GCg formed a 1:2 complex with beta-CD, in which the A and B rings of GCg were included by two molecules of beta-CD. The difference between the two modes of inclusion of the 1:1 complex of ECg, EGCg.beta-CD and the 1:2 complex of GCg.beta-CD might have resulted from the size of the space between the B and B' rings in aqueous solution. As a result of nuclear Overhauser effect (NOE) experiments, GCg was considered to have a large enough space between the B and B' rings to include the B ring in the beta-CD cavity; on the other hand, ECg and EGCg have no such large space
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|a Comparative Study
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|a Journal Article
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|a Solvents
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|a Water
|2 NLM
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|a 059QF0KO0R
|2 NLM
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|a gallocatechin gallate
|2 NLM
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|a 0C056HB16M
|2 NLM
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|a Catechin
|2 NLM
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|a 8R1V1STN48
|2 NLM
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|a epicatechin gallate
|2 NLM
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|a 92587OVD8Z
|2 NLM
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|a epigallocatechin gallate
|2 NLM
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| 650 |
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|a BQM438CTEL
|2 NLM
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| 700 |
1 |
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|a Kajitani, Shinya
|e verfasserin
|4 aut
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1 |
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|a Tsutsumi, Hiroyuki
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yamamoto, Hideji
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Harano, Kazunobu
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Magnetic resonance in chemistry : MRC
|d 1985
|g 46(2008), 5 vom: 01. Mai, Seite 448-56
|w (DE-627)NLM098179667
|x 1097-458X
|7 nnns
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| 773 |
1 |
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|g volume:46
|g year:2008
|g number:5
|g day:01
|g month:05
|g pages:448-56
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|u http://dx.doi.org/10.1002/mrc.2198
|3 Volltext
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|d 46
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