Influence of Amylose Starch on Development and Lifespan of Fruit Fly Drosophila Melanogaster

Abstract

Last years, the concept of resistant starch (RS) has evoked a new interest in researchers
in the context of bioavailability of starch and its use as a source of dietary fiber. Based on clinical
and animal research, RS has been proposed to be the most potentially beneficial starch fraction for
human health. In this study, the effects of amylose starch as a fraction of RS on development and
lifespan of fruit fly Drosophila melanogaster were investigated. In both Canton S and w1118 strains, the
diet with 20% amylose RS delayed fly development, increased triacylglyceride level in the body of
adult insects and reduced their lifespan compared to the diet with 4% amylose starch. Thus, our
data clearly demonstrate that amylose starch at high concentrations may negatively affect fruit fly