HIGHLIGHTS
SUMMARY
Acetylation treatments on rice starches produced homogeneous films with an elongation at break higher than native starches films. Chemically modified cassava starch using potassium periodate to produce biodegradable films was characterized by a higher tensile strain at break and a reduced water solubility than the films without modification. Double modification (debranched/hydroxypropylated) in corn starch increased the elongation and the tensile strength at break of films; however, the oxygen and water vapor barrier were inferior to films produced with native or modified starches. The literature has reported techniques that include different ways to incorporate . . .
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