超声波辅助法提取山茶油工艺的研究

Study on extraction of camellia oil by ultrasonic technique

以山茶籽为原料，采用超声波辅助法对山茶油的提取工艺进行研究。影响山茶油提取的因素包括颗粒粒度、超声时间、液料比、超声温度、超声功率，在单因素实验基础上采用L16（4^5）对这5种因素进行正交实验，由正交实验得出最佳提取工艺条件：颗粒粒度为60目、超声时间50min、液料比7：1、超声温度70℃、超声功率为130W。在该工艺条件下，山茶油平均提取率为19．55％。该方法工艺操作简单、提取速度快、环境污染少、成本低。

The ultrasonic assistant extraction technique of camellia oil was studied with camellia seeds as raw material. The factors affecting the extraction of camellia oil were particle size, ultrasonic time, liquid -solid ratio, ultrasonic temperature as well as ultrasound power. The L16 （45） orthogonal test was designed for these factors on the basis of single factor experiments and the optimal extraction conditions were as follows ： particle size was 60 screen meshes, ultrasonic time 50 min, liquid - solid ratio 7 ： 1, ultrasonic temperature 70℃, and ultrasound power 130 W. In this case, the average extraction rate of the camellia oil was 19.55%. The operation was simple and rapid with less pollution and cost.