Resistant starch derived from processed legumes—purification and structural characterization

Purified resistant starch (RS), derived from processed (4 cycles) Bengal gram and red gram dhals, was of low molecular weight, 31.1 and 50.1 KDa, respectively, X-ray analysis revealed mixed polymorphic forms (C and V-types), which are characteristic of gelatinized starch suspensions. Permethylation analysis showed branched nature of RS having both 1,4-and 1,6-linkages, which was supported by 13C NMR data.