响应面法优化超声提取枇杷叶中熊果酸的工艺研究  

Research on extraction of ursolic acid from loquat leaf by ultrasonic technology optimized by response surface analysis

作　　者：马雄[1] 陶亮亮[1] 刘柯彤[1] 刘军海[1] 

机构地区：[1]陕西理工学院化学与环境科学学院,陕西汉中723001

出　　处：《饮料工业》2012年第6期30-35,共6页Beverage Industry

基　　金：陕西理工学院大学生基金项目SLGDXS20100011

摘　　要：在单因素试验的基础上,以熊果酸提取率为响应值,采用响应面法,对枇杷叶中熊果酸的超声波提取工艺条件进行了优化,得到最佳工艺条件为:乙醇浓度82%、液料比21:1(mL/g)、超声时间35min、超声温度69℃,在此条件下,熊果酸的提取率为3.567mg/g。On the basis of single-factor tests and with response surface analysis, the parameters of ultrasonic-assisted extraction of ursolic acid from loquat leaf were optimized with the yield of ursolic acid as the response value. The optimum parameters were determined as follows： ethanol concentration 82%, solvent-solid ratio 21 ： 1 （ml/g）, ultrasonic time 35 min and ultrasonic temperature 69℃ The maximum yield of ursolic acid was 3.567 mg/g on these conditions.

关 键 词：枇杷叶 超声 熊果酸 提取工艺 

分 类 号：TQ914.1[化学工程]