竹叶多糖超声提取工艺研究

Study on Ultrasonic Extraction of Polysaccharide from Bamboo Leaves

研究了超声时间、料液比、超声温度、超声功率四个因素对竹叶多糖提取的影响,在单因素实验研究的基础上选择合适的水平,通过正交试验优化了竹叶多糖的超声提取工艺条件,实验结果显示:超声时间40 min,料液比1∶18 g/m L,超声温度55℃,超声功率200 W的工艺条件下,竹叶多糖提取率最高,达3.594%。竹叶水溶性多糖具有良好的抑菌性,可作为皮革抑菌剂进一步提高皮革附加值。超声提取竹叶多糖提取速度快,提取率高,无二次污染,是绿色化工业提取较好的选择。

The effects of ultrasonic time, solid-liquid ratio, ultrasonic temperature and ultrasonicpower on the extraction rate of polysaccharides from bamboo leaves were studied, and the suitableoptimization level based on single factor research was found out to optimize the ultrasonic extractiontechnology by orthogonal test. The results show that ultrasonic time of 40 min, ratio of material to liquidof1∶18 g/mL, ultrasonic temperature of 55℃, ultrasonic power of 200 W, bamboo polysaccharideextraction rate can reached 3.594%. Water soluble polysaccharides from bamboo leaves have goodantibacterial activity, which can be used as leather antibacterial agents to increase their added value.Ultrasonic extraction of polysaccharides from bamboo leaves has the advantages of high extraction rateand ratio, no two pollution. It is a better choice for green industrial extraction.