Study on processing analysis of medium-DE maltodextrin by enzymatic and drum drying

Medium-DE maltodextrin was prepared by enzymatic and drum drying using Box-Behnken central composite design combined with response surface methodology with rice starch as raw material.Results indicated that the optimal value was roller speeds 73.1r/min (the roller speeds in actual operation was 73r/min) , drum vapor pressure 0.32MPa, α-enzyme dosage 6.33U/g, starch concentration 40.6%.Under this condition, the DE value of maltodextrin was 3.42%.