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• 基础研究 •    下一篇

槲皮素与6-O-α-D-麦芽糖基-β-环糊精包合物的理化表征

李赟1,汪芳2,邹伟1,王雪松1,蔡红燕1,陈轩1,孙威3,沈汪洋1   

  1. 1. 武汉轻工大学
    2. 武汉凯迪工程技术研究总院有限公司
    3. 武汉工业学院
  • 收稿日期:2016-03-03 修回日期:2016-09-20 出版日期:2016-11-15 发布日期:2016-11-18
  • 通讯作者: 沈汪洋 E-mail:whwangyangshen@126.com
  • 基金资助:
    国家自然科学基金青年科学基金项目

Physicochemical Properties of the Complex of Quercetin with 6-O-α-D-Maltosyl-β-cyclodextrin

1, 1, 1, 1, 1, Wang-Yang SHEN   

  • Received:2016-03-03 Revised:2016-09-20 Online:2016-11-15 Published:2016-11-18
  • Contact: Wang-Yang SHEN E-mail:whwangyangshen@126.com

摘要: 采用相溶解度法研究6-O-α-D-麦芽糖-β-环糊精[与麦芽糖-β-环糊精是同种物质][跟麦芽糖-β-环糊精有什么区别?统一说法](英文全称,Mal-β-CD)和β-环糊精(英文全称,β-CD)对槲皮素的包合效果,利用溶剂法制备Mal-β-CD与槲皮素的包合物,借助紫外光谱、红外光谱、扫描电子显微镜(SEM)、X-射线衍射、热重及差示扫描量热联用等分析手段研究对该包合物的理化性质,并采用分子对接法建立了该包合物的超分子结构。结果表明:Mal-β-CD包合槲皮素的能力高于母体β-CD。分子对接结果表明槲皮素是沿Mal-β-CD的大口端方向进入其疏水空腔形成包合物,二者间是通过氢键相连接的。较之母体β-CD,Mal-β-CD与槲皮素的包合效果更好,且包合后槲皮素的物相发生重大变化,热稳定性提高。

关键词: 槲皮素, 6-O-α-D-麦芽糖-β-环糊精, 包合物, 理化性质, 分子对接

Abstract: In this study, the inclusion efficiency of 6-O-α-D-Maltosyl-β-cyclodextrin (Mal-β-CD) and β-cyclodextrin(β-CD) on quercetin was studied by phase solubility method, and the inclusion complex of quercetin with Mal-β-CD was prepared by solvent method. The physicochemical properties of inclusion complex was studied by ultraviolet-visible spectrometry (UV), infrared spectrometry (IR), scanning electron microscopy (SEM), X-ray diffractometry (XRD), and thermogravimetric/differential?scanning calorimetry (TG/DSC). The molecular docking method was also applied to study the three-dimensional supermolecular structure of the complex. The results show that the inclusion efficiency of Mal-β-CD was superior to β-CD. The results of molecular docking show that quercetin could enter the hydrophobic cavity from the wide rim of G2-β-CD to form the supermolecular structure. Quercetin and Mal-β-CD were combined with hydrogen bond. Compared to β-CD , Mal-β-CD exihibited higer inclusion efficiency with the physicochemical properties of quercetin changed and the stability of quercetin improved.

Key words: quercetin, 6-O-α-D-maltosyl-β-cyclodextrin, inclusion complex, physicochemical property, molecular docking

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