Preparation of White Lentil Resistant Starch by Pressure-heating Treatment

Using white lentil starch as raw material,RS3 resistant starch was prepared by pressure-heating treatment method.The optimum processing parameters for preparation of resistant starch though single factors test and orthogonal test using the yield of the white lentil resistant starch as the evaluation index were determined as: starch concentration 15%,pH 8,temperature 125 ℃,pressure-heating time 1.5 h and aging treatment time 36 h at 4 ℃.Under these conditions,the yield of RS3 resistant starch could be up to 17.39%.