【摘要】 为寻求一种安全高效的儿茶素溶剂提取工艺,对不同溶剂、乙醇浓度、提取温度、料液比、提取时间,以及提取次数等工艺条件对儿茶素提取效果的影响进行研究。结果表明:当料液比为1∶15(W∶V)、乙醇浓度为80%、提取70℃、提取30min,提取2次,从绿茶中儿茶素总提取率可达到98.17%。更多还原

【Abstract】 This paper investigated the effect of different solvents,different concentrations of ethanol,different extraction temperatures,with different solid-liquid ratio,different extraction time,and different extraction times on the green tea catechin extracting rate. The results showed that: When using 80% ethanol concentration,extraction temperature in 70 ℃ ,solidliquid ratio 1 ∶ 15(W ∶ V) and the extraction time for 30 min and the extraction times by 2 times ,effect of extraction of green tea catechins reach to 98. 17% .更多还原