安徽农业科学2016，Vol.44Issue(24)：64-65,101,3.
废弃茶叶茶多酚的提取及其粗提物对水中铜离子的吸附效果
Extraction of Tea Polyphenols from Waste Tea and the Absorption Efficiency of its Crude Extracts to Copper Ion in Water
摘要
Abstract
Objective] To study the extraction technology of tea polyphenols from recycling waste tea and the absorption efficiency of its crude extracts to copper ion in water.[Method] L9(34) orthogonal test was used to optimize the extraction condition for tea polyphenols.After pre-paring the tea polyphenols, tea residue was used to prepare activated carbon.Absorption efficiency of tea polyphenols and activated carbon to copper ion in water was detected.[ Result] The optimal extraction conditions for tea polyphenols were as follows: 1∶30 solid-liquid ratio, 97 ℃ extraction temperature, 20 min extraction time.Complexation precipitation ability of tea polyphenols to copper ion was 38.50 mg/g. Activated carbon also had certain adsorption to copper ion with the adsorption capacity being 2.64 mg/g.[Conclusion] Tea polyphenols ex-tracted from the waste tea in tea garden and the activated carbon in tea residue have relatively strong scavenging action.This method provides references for the cyclic utilization of waste tea resources in tea garden.关键词
茶园废茶/茶多酚/活性炭/铜离子/再生利用Key words
Waste tea in tea garden/Tea polyphenols/Activated carbon/Copper ions/Recycling分类
农业科技引用本文复制引用
石艳梅,石珉玥,伍庆,郭晓青,郭丽,王娇..废弃茶叶茶多酚的提取及其粗提物对水中铜离子的吸附效果[J].安徽农业科学,2016,44(24):64-65,101,3.基金项目
贵州省科学技术基金（黔科合 J字［2014］2002号）；贵州省科技计划项目（黔科合重大专项字［2013］6006－3号）。 （）
