Amylose and resistant starch (RS) content in rice flour were manipulated. The experiment was conducted
using a full factorial design. Rice flour with average amylose content of 20 and RS content of 0.5 g/100 g
dry sample was fortified with pure amylose from potato and high RS modified starch to reach the final
amylose content of 30, 40 and 50 and RS content of 2, 4 and 6 g/100 g dry sample. The fortified rice flours
were examined for their gelatinisation properties, in-vitro enzymatic starch digestion and gel textural
properties. It was found that amylose and RS significantly affect all the fortified rice flour properties
(p < 0.05). High amylose and RS improved starch digestion properties, reducing the rate of starch
digestion and lowering the glycaemic index (GI) values. Amylose had a more pronounced effect on the
fortified rice starch properties than RS. In this study, the fortified rice flour which contained amylose and
RS of approximately 74 and 9 g/100 g dry sample respectively was used to produce rice noodles. The
noodles exhibited low GI values (GI < 55). However, amylose and RS affected the textures of rice noodles
providing low tensile strength and break distance (extensibility).