| 普洱生茶和熟茶茶多酚的提取及抗氧化活性研究 |
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| 引用本文： | 邹艳丽,陈靖,李聪,王波,谢启明. 普洱生茶和熟茶茶多酚的提取及抗氧化活性研究[J]. 安徽农业科学, 2012, 40(8): 4850-4851 |
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| 作者姓名： | 邹艳丽 陈靖 李聪 王波 谢启明 |
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| 作者单位： | 1. 楚雄师范学院化学与生命科学系,云南楚雄,675000
2. 云南大学化学科学与工程学院,云南昆明,650091 |
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| 摘 要： | [目的]为普洱生茶和熟茶中茶多酚的开发利用提供理论依据。[方法]采用有机溶剂萃取法、离子沉淀法和吸附分离法分别从普洱生茶和熟茶中提取茶多酚,测定提取物对2,2-二苯代苦味酰基自由基(DPPH.)的清除作用。[结果]普洱生茶的茶多酚提取率都高于熟茶,普洱生茶茶多酚对DPPH.的清除率高于熟茶。[结论]普洱生茶的抗氧化活性高于熟茶。
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| 关 键 词： | 普洱生茶 普洱熟茶 茶多酚 抗氧化活性 |
Study on the Extraction and Antioxidant Activities of Pu-Er Crude Tea and Pu-Er Ripe Tea Polyphenol |
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| Affiliation: | ZOU Yan-li et al(Department of Chemistry and Life Science,Chuxiong Normal University,Chuxiong,Yunnan 675000) |
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| Abstract: | [Objective] The aim was to provide the theoretical basis for development and utilization of Pu-Er crude tea and Pu-Er ripe tea polyphenols.[Method] Tea polyphenol was respectively extracted from Pu-Er crude tea and Pu-Er ripe tea by means of extraction by organic solvent,precipitation by ion and fractionation by adsorption.At the same time,the ability for scavenging DPPH· free radical of the extracts was studied.[Result] There was a higher tea polyphenols extraction ratio from Pu-Er crude tea than Pu-Er ripe tea,Pu-Er crude tea had a more remarkable scavenging activity to DPPH free radical than Pu-Er ripe tea.[Conclusion]The antioxidant activity of Pu-Er crude tea was better than Pu-Er ripe tea. |
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| Keywords: | Pu-Er crude tea Pu-Er ripe tea Tea polyphenol Antioxidant activity |
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