| 茶多酚氧化实验研究 |
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| 引用本文： | 李立祥.茶多酚氧化实验研究[J].南京农业大学学报,2002,25(2):101-104. |
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| 作者姓名： | 李立祥 |
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| 作者单位： | 安徽农业大学农业部茶叶生物技术重点开放实验室,安徽合肥,230036 |
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| 摘 要： | 进行茶多酚酶（PPO）促氧化、碱性氧化、酸性氧化试验，结果发现：茶多酚在3种氧化条件下均可氧化并形成茶黄素（Ts)；酶促氧化形成茶黄素的含量比化学氧化形成量低。在双液相体系中茶多酚进行碱性氧化和酸性氧化，茶黄素形成量较接近。并就儿茶杯素氧化方法对茶色素制影响进行了讨论。
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| 关 键 词： | 茶多酚 儿茶素 酸性氧化 茶色素 茶黄素 氧化实验 化学氧化 |
| 文章编号： | 1000-2030(2002)02-0101-04 |
| 修稿时间： | 2001年12月3日 |
Experimental study on oxidation of tea polyphenols |
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| LI Li,xiang.Experimental study on oxidation of tea polyphenols[J].Journal of Nanjing Agricultural University,2002,25(2):101-104. |
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| Authors: | LI Li xiang |
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| Abstract: | The oxidation of tea polyphenols by polyphenol oxidase(PPO),alkali oxidant and acidic oxidant was studied.The results showed that tea polyphenols could be oxidized and produced theaflavins(TFs)under the three oxidation conditions,and there was lower content of TFs when oxidized by polyphenol oxidase than that by chemical oxidants.In the bi liquid phase system,the resultant contents of TFs were close when alkali oxidant and acidic oxidant were respectively applied.In addition,effects of methods of catechins oxidation on tea pigment products were discussed. |
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| Keywords: | tea polyphenols catechins acidic oxidation tea pigment theaflavins(TFs) |
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