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| 茶多酚-锌(Ⅱ)配合物的合成及抗氧化活性 | |
| 引用本文： | 王彦兵,张迪,刘绣华,刘小强,杨静.茶多酚-锌(Ⅱ)配合物的合成及抗氧化活性[J].河南大学学报(自然科学版),2012,42(4):378-383. |
| 作者姓名： | 王彦兵 张迪 刘绣华 刘小强 杨静 |
| 作者单位： | 1. 河南大学化学化工学院环境与分析科学研究所,河南开封,475004 2. 河南大学河南省天然药物与免疫工程重点实验室,河南开封475004;河南大学化学生物学研究所,河南开封475004 3. 焦作市畜产品质量安全监测中心,河南焦作,454000 |
| 基金项目： | 河南省科技厅科技发展计划攻关重点项目 |
| 摘 要： | 首次以信阳废次茶和氯化锌为原料,合成了茶多酚-锌(Ⅱ)配合物(TP-Zn),利用红外光谱、紫外-可见吸收光谱和热分析技术对其结构及性质进行表征和分析.以1,1-二苯基-2-苦苯肼自由基(DPPH.)、邻苯三酚自氧化反应产生超氧阴离子自由基(O2-.)和Fenton反应产生羟基自由基(.OH)为模型,用紫外-可见分光光度法分别测定茶多酚及其配合物对模型中DPPH.、O2-.和.OH的清除作用.结果表明:茶多酚-锌(Ⅱ)配合物清除DP-PH.、O2-.和.OH的能力强于茶多酚,其浓度与抗氧化活性呈一定的量效关系. |
| 关 键 词： | 茶多酚-锌(Ⅱ)配合物 抗氧化活性 清除自由基 |
Synthesis of Complex Zinc ( Ⅱ )-Tea Polyphenols and Its Antioxidant Activity |
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| WANG Yan-bing , ZHANG Di , LIU Xiu-hua , LIU Xiao-qiang , YANG Jing.Synthesis of Complex Zinc ( Ⅱ )-Tea Polyphenols and Its Antioxidant Activity[J].Journal of Henan University(Natural Science),2012,42(4):378-383. | |
| Authors: | WANG Yan-bing ZHANG Di LIU Xiu-hua LIU Xiao-qiang YANG Jing |
| Affiliation: | 1.Henan University a.Institute of Environmental and Analytical Science,College of Chemistry and Chemical Engineering b.The Key Laboratory of Natural Medicine and Immuno-Engineering of Henan Province c.Institute of Chemistry & Biology of Henan University,Henan Kaifeng 475004,China; 2.Jiaozuo Monitoring Center for Animal Products Quality and Safety,Henan Jiaozuo 454000,China) |
| Abstract: | The tea polyphenols-zinc(Ⅱ) complex was synthesized from Xinyang waste times tea and ZnCl2 for the first time,and its structure and properties were characterized by means of infrared(IR) spectrometry,UV-visible absorption spectrometry and thermal analysis technique.Superoxide free radical(O-·2) and hydroxyl free radicals(.OH) were produced by pyrogallol autoxidation reaction and Fenton reaction,respectively.The scavenging effects of tea polyphenols-zinc(Ⅱ) complex and tea polyphenols on DPPH·,O-·2and ·OH were detected by ultraviolet and visible spectrophotometry.The results showed that the scavenging activities of complex on DPPH·,O-·2and ·OH were stronger than that of the tea polyphenols and the antioxidant activity was dose-effect relationship with its concentration in the solution. |
| Keywords: | tea polyphenols-zinc(Ⅱ) complex antioxidant activity free radical scavenging |
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