Abstract:The extraction technology of polysaccharides from blueberry after extracting anthocyanin by cellulase and ultrasonic was studied in this manuscript.Also,decolorizate rough polysccharides and remove protein,then through column chromatography,finally test the antioxidant capability of the refined polysccharides SP.the optimum conditions for process was determined by Orthogonal test experiment and listed as follows: time 100 min,temperature 40 ℃and enzyme additive 0.6%,the extraction percent 2.319%.In the extraction process by ultrasonic,the optimum conditions were: the extraction time 40min,temperature 50 ℃,power 80 W,the extraction percent 2.335%.Compared with that of the traditional extraction process by water,the process suggested in this manuscript has been proven easier manipulation and get higher extraction yield.Furthermore,the results also strong demonstrated that SPⅠhas stronger antioxidant activity.
