Extraction,Deodorization and Application of Soybean Fiber in Bayberry Juice

The extraction conditions for SDF from soybean were optimized with single factor experiment and orthogonal design in this study and listed as follows:the time of enzymic hydrolysation 1.5h,enzymic amount 0.3%,the temperature of enzymic hydrolysation 45℃,pH4.5. with the enzyme from soubean,the effect of SDF on bayberry juice was carefully investigated. Based on the results of single factor experiments,the amount of CMC—Na,xanthan,pectin and SDF were selected as independent variables,deposition ratio and△OD as responses variables. Furthermore,the optimum conditions were achieved by using central composite design and response surface analysis and listed as follows;CMC -Na 0.0562%,xanthan 0.034%,pectin 0. 06%,SDF 4.82%。