Crystallographic evidence for β-cyclodextrin inclusion complexation facilitating the improvement of antioxidant activity of tea (+)-catechin and (−)-epicatechin
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- 作者：Thammarat Areea ; athammar@chula.ac.th" class="auth_mail" title="E-mail the corresponding author ; Suchada Jongrungruangchokb
- 关键词：β-Cyclodextrin (PubChem CID ; 444041) ; (+)-Catechin (PubChem CID ; 107957) ; (&minus ; )-Epicatechin (PubChem CID ; 72276) ; DPPH (PubChem CID ; 2735032) ; Ethanol (PubChem CID ; 702)
- 刊名：Carbohydrate Polymers
- 出版年：2016
- 出版时间：20 April 2016
- 年：2016
- 卷：140
- 期：Complete
- 页码：362-373
- 全文大小：2971 K
文摘
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X-ray analysis of β-CD inclusion complexes with (+)-catechin and (−)-epicatechin.
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Two complexes exist in three crystal forms, monoclinic, P21 and triclinic, P1.
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OH⋯O H-bonds and π⋯π intermolecular interactions stabilize the complexes.
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Rare A-conformer and dimeric structure of tea catechins in the cavity confinement.
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Number of OH groups protected play a key role in antioxidant activity improvement.