响应面法优化超声波提取构树叶中叶绿素的工艺研究

为实现构树叶的高附加值利用，选取影响超声波辅助提取构树叶中叶绿素提取效果的提取温度、超声波处理时间、超声波功率、液料比4个因素，通过单因素实验选取影响因素的水平，然后在单因素实验的基础上采用四因素三水平的响应面分析法（RSA），依据回归分析优化了超声波辅助提取构树叶中叶绿素的工艺方法。结果表明:超声波辅助提取构树叶中叶绿素的优化条件为提取温度60℃，超声波处理时间50 min，超声波功率500 W，液料比10 mL/g；该条件下，叶绿素的提取得率可达到1.277%。与传统的研磨法和溶剂萃取法相比，超声波辅助提取叶绿素大大缩短了提取时间，提高了有效成分的提取得率，是一种极具应用前景的方法。 

Optimization of ultrasonic extraction of chlorophyll from papermulberry leaves via response surface analysis

In order to achieve the high value-added-value utilization of papermulberry(Broussonetia papyriera) leaves,we selected four factors which had effect on extraction rate of chlorophyll,i.e.extraction temperature,ultrasonic extraction time,ultrasonic power and ratio of liquid to material.Through single factor experiment and response surface analysis(RSA) with four factors three levels,the extraction conditions of ultrasonic wave assisted extraction for chlorophyll from papermulberry leaves were optimized.The r...