Characteristics of biodegradable plastic from mulu bebe banana peel starch with the addition of chitosan and glycerol plasticizer

Abstract

Bioplastics are a solution to the food packaging problem, which generally uses synthetic petroleum packaging, which is increasingly limited, difficult to degrade by nature and a food safety solution for health. However, this packaging needs to be strengthened in its mechanical properties by adding chitosan and glycerol. This study aimed to investigate the effect of adding chitosan and glycerol on the physical dan mechanical characteristics of the bioplastics and the physical and mechanical characteristics of bioplastics resulting from adding different chitosan and glycerol. Design experiment using the factorial Completely Randomized Design (CRD) method with 2 (two) treatment factors and 3 (three) replications. The two treatment variables were chitosan concentration (0%, 1%, 2%) and glycerol concentration (1%, 2%, 3%) with three replications. There are 27 experimental units in total. The data obtained were analyzed using analysis of variance with a factorial Completely Randomized Design (CRD) model. If it has a significant effect, a further test with the least significant difference test at the 5% level is carried out. The addition of different chitosan and glycerol affected all parameters. Biodegradable plastic from Mulu Bebe banana peel starch with the addition of chitosan and glycerol plasticizer has the characteristics of water content 13.389-19.621%, density 0.047-0.112 gr/cm3, tensile strength 0.983-4.790 Mpa, elongation 1.402-13.317%, and water absorption 12.407-82.194%.