铁观音茶梗中茶皂素含量测定  

The determination of tea saponin of tea stems of Tieguanyin tea

作　　者：岳文杰[1,2] 王瑞[3] 宁芊[1] 李靖 杨志坚[5] 陈君实[1] 

机构地区：[1]福建农林大学金山学院,福建福州350002 [2]福建农林大学中国白茶研究所,福建福州350002 [3]湖南省林业科学院,湖南长沙410004 [4]江西省水土保持监督监测站,江西南昌330009 [5]福建农林大学农产品品质研究所,福建福州350002

出　　处：《湖南林业科技》2012年第1期57-60,共4页Hunan Forestry Science & Technology

基　　金：福建农林大学金山学院青年教师科研基金项目(020701)

摘　　要：本试验以安溪铁观音茶梗为原料,利用超声波提取法,通过对溶液浓度、液料比、超声间歇周期、工作时间等因素调节对茶梗中的茶皂素得率进行比较,筛选最佳提取工艺条件。结果表明:超声功率700 W,以80%乙醇为提取溶剂,液料比4∶1,溶液pH值10.0,超声间歇周期为开1 s关3 s,工作时间20 min时,茶梗中茶皂素的得率最高为10.75%。Taking the stems of Tieguanyin tea as raw material, and using ultrasonic extraction, choosing the best extraction conditions through the comparison on extraction rate of tea saponin of tea stems in the concentration, liquid feed ratio, ultrasonic intermittent cycle, working time and other factors. The results showed that： In the extraction condition of ultrasonic power in 700 W, with 80% ethanol as extraction solvent, liquid feed ratio 4 ： 1, pH 10. 0, ultrasonic intermittent cycle was turn on one second and turn off 3 seconds, in work time 20 minutes, the highest rate of tea saponin in tea stems is 10. 75%.

关 键 词：茶皂素 铁观音 茶梗 超声波提取法 

分 类 号：S571.1[农业科学—茶叶生产加工]