1. IntroductionIn recent decades, the growing environmental awareness has
encouraged the development of biodegradable materials from
renewable resources to replace conventional non-biodegradable
materials in many applications. Among them, polysaccharides
such as starches offer several advantages for the replacement of
synthetic polymers in plastics industries due to their low cost,
non-toxicity, biodegradability and availability (Fajardo et al., 2010;
Simkovic, 2013). Corn has been the main source of starch commer-
cially available. Other minor sources include rice, wheat, potato
and cassava and starchy foods such as yams, peas and lentils
(Bergthaller, 2005).