微波辅助提取芦荟多糖的研究

Study on the Microwave-assistant Extraction of Aloe Polysaccharide

将微波辅助提取技术应用于芦荟中水溶性多糖的提取,寻求最佳提取工艺。采用单因素和正交试验,分别考察了微波辐照时间、微波功率、液料比、提取pH四个因素对芦荟多糖提取率的影响。试验结果表明,最佳提取条件为微波时间120 s,料液比为1∶30(g/mL),微波功率455W,提取液pH11.00,在此时条件下提取率为3.421%。

To apply the microwave-assistant extraction(MAE) to extracting the water-soluble polysaccharide of aloe and search for the optimum extraction process.The effects of microwave time,microwave power,the ratio of solid to liquid and extraction liquid pH on recovery of aloe polysaccharide were investigated by single factor and orthogonal design methods.The results showed the optimal conditions were microwave time 120 s,ratio of solid to liquid 1∶ 30(g/mL),microwave power 455W,extraction liquid pH 11.00,by which the extraction rate of aloe polysaccharide reached 3.421%.