微波辅助提取榛子叶多糖提取工艺研究

Study on the Technology of Microwave-assisted Extraction of Hazelnut Leaf Polysaccharide

以经石油醚和95％乙醇处理过的榛子叶粉为原料，主要研究微波辅助提取榛子叶多糖的工艺条件。分别考察了浸提温度、浸提时间、料液比、微波处理时间对榛子叶多糖得率的影响，并采用L9（3^4）正交试验优化提取工艺，最后得出的最佳提取工艺条为：浸提温度为60℃，浸提时间为2h，料液比为1：25（W：V），微波处理时间为3min，此条件下榛子叶多糖得率为2．67％。

With petroleum ether and 95% ethanol treated hazelnut leaf powder as raw material, microwave-assisted extraction of hazelnut leaf polysaccharide was studied. The impact of leaching temperature, leaching time, the solid- liquid ratio and microwave processing time on polysaccharide yield of hazelnut leaf were investigated. As the result, the optimum conditions obtained by L9（3^4） orthogonal experiment were as follows： leaching temperature was 60 ℃, leaching time was 2 h, solid-liquid ratio was 1 ：25 （w ： V）, microwave processing time was 3 min. Under the above conditions, the polysaccharide yield of hazelnut leaf was 2. 67%.