shows that the linear relation between DS and RS content.
Conway and Hood (1976) reported that chemical substitution of
starch reduced its enzyme digestibility, probably because the bulky
and derivatized groups sterically hinder the formation of the
enzymeesubstrate complex. Bj€orck et al. (1989) also proved that
the digestive enzymes may not be able to degrade them completely
since the substituents hindered the attack of enzymes.