| 摘要: |
| 目的 制备基于茶多酚-β-环糊精包合物的吸氧剂并对其性能进行研究。方法 以茶多酚和β-环糊精为原料，通过饱和水溶液法制得茶多酚-β-环糊精包合物。采用红外光谱对包合物结构进行表征，并对其热稳定性能与吸氧性能进行研究。结果 通过红外光谱图分析，可知茶多酚已进入β-环糊精的疏水空腔中，成功形成了包合物。与单独的茶多酚相比，包合物的热稳定性大幅增强，吸氧性能有所下降，但其最大吸氧量可达62.8 mL/g，仍是一种高效吸氧剂。结论 文中研究制备的茶多酚-β-环糊精包合物不仅具有良好的吸氧性能，而且热稳定性能较佳，可用于制备单层/多层吸氧薄膜。 |
| 关键词: 茶多酚 β-环糊精 吸氧剂 |
| DOI： |
| 分类号: |
| 基金项目:国家重点研发计划（2016YFD0400701） |
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| Preparation and Properties of Oxygen Scavenger Based on Tea Polyphenols-β-cyclodextrin Inclusion Complex |
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ZHANG Mei-ying1, LU Li-xin2,3, QIU Xiao-lin2,3
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1.Jiangnan University, Wuxi 214122, China;2.1.Jiangnan University, Wuxi 214122, China;3.2.Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment and Technology, Wuxi 214122, China
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| Abstract: |
| The paper aims to prepare tea polyphenols-β-cyclodextrin inclusion complex and study its properties. Tea polyphenols-β-cyclodextrin inclusion complex was obtained through the saturated water solution method based on raw material of polyphenols-β-cyclodextrin. Its structure was characterized by the infrared spectrum, and. Its thermal property and oxygen scavenging performance were also studied. According to analysis with infra-red spectrogram, tea polyphenols entered β-cyclodextrin and formed inclusion complex. Compared with separate tea polyphenols, the thermal stability of the inclusion compound was increased substantially, but its oxygen scavenging performance was declined. However, its maximum oxygen scavenging amount could reach 62.8 mL/g, so it was still a highly efficient agent. Tea polyphenols- β-cyclodextrin inclusion complex has good oxygen scavenging performance and high thermal stability. It can be used for preparation of single-layer/multi-layer films. |
| Key words: tea polyphenols β-cyclodextrin oxygen scavenger |
