MICROWAVE-ASSISTED EXTRACTION TECHNOLOGY OF POLYSACCHARIDES FROM GRIFLOLA FRONDOSA

To extract the mycelium polysaccharides from Griflola frondosa by the method assisted with microwave.In order to determine the optimal extraction condition,the conditions of polysaccharides extraction including extraction time,microwave power and ratw of water to material were studied by single factor experiment and orthogonal design;The polysaccharide was determined by phenol-sulphoacid method.The experimental results showed that the optimum extraction condition of mycelium polysaccharides from Griflola frondosa was as following: the extraction time is 6min,200W the miwowave power is the ratio of water to material is,150:1 the polysaccharides extraction rate was 13.1%.Compared with the traditional water extraction,microwave-assisted extraction of polysaccharide could reduce the time and increase the yield of raw polysacharide,and it was a promising assisted extraction method of polysaccharides.