The Process Optimization of Microwave Assisted extraction of Polysaccharide Mulberry

Microwave assisted extraction technology of mulberry polysaccharide was investigated.The effects on the extraction with solvent pH value,the liquid-solid ratio,microwave radiation time and extraction times were discussed.Results of orthogonal rotation design indicated that the optimum conditions were as follows: solid to liquid ratio of 1:25g/ml,extraction times of 3 times;microwave radiation time of 150 s.Under the conditions,polysaccharide yield for 11.31%.Compared with heat reflux and ultrasonic-assisted extraction method,microwave extraction method is fast,high efficiency,energy saving,and polysaccharides have the advantages of high rate.