【摘要】 利用微波技术提取信阳毛尖中的茶多糖,采用单因素试验的方法研究了浸提时间、浸提温度、料水比和提取功率4个因素对茶多糖提取率的影响。结果表明,浸提时间、浸提温度、料水比和提取功率4个因素对茶多糖提取率均达到显著影响,利用二次响应面回归分析,得出微波提取茶多糖的最优工艺参数:提取时间为70 min,提取温度为55℃,料水比为1∶10,提取功率为650 W。更多还原

【Abstract】 In lab test with microwave-assisted extraction,the effects of 4 extracting factors as time,temperature,ratio of tea and water,microwave oven power on extracting rate of tea polysaccharides were studied and the parameters for tea polysaccharides were obtained by using SAS software.The result showed that 4 extracting factors including time,temperature,ratio of tea and water and microwave oven power had significant effects on the extracting rate of tea polysaccharides.And the optimum parameters were extracting for 70 min at 55 ℃ with 1∶10 ratio of tea and water with 650W of microwave.更多还原