A higher content of amylose lowers
the digestibility of starch due to positive correlation between amylose
content and formation of RS (Berry 1986; Sievert and Pomeranz
1989b). The importance of the amylose:amylopectin ratio in
the postprandial glycaemic and insulinaemic responses to corn
was studied in commonly consumed corn products (Granfeldt
and others 1995). The meals containing high amylose (70%) corn
flour had an RS of 20 g/100 g DM than that containing ordinary
corn flour (25% amylose) that had RS of 3 g /100 g DM.