RVA viscogrrams of native and modified rice starch prepared by the reaction of native rice starch with 1% STMP of various reaction time with 27% moisture content at pH 9.5, 120 C (A) native rice starch (B) 7.5 min, (C) 15 min, (D) 30 min, (E) 60 min, (F) 120 min.