Mango and banana extrudates had lower swelling
than corn starch extrudates at the different screw
speeds. Solubility of the extrudates was different
depending on the starch source and screw rate. Resistant
starches of mango and banana extrudates prepared
at 30 rpm were not different, but at 40 rpm and
65 rpm banana extrudates had higher RS than mango
starch extrudates. The use of non-conventional starch
sources is a good alternative for resistant starch
preparation, due to the levels obtained in the
extruded products. The extrusion conditions are an
important factor in the preparation of RS products,
because of its influence in their functional and physicochemical
characteristics. The use of starch extrudates
in medical and food applications may be an
important development area