Synthesis of Biofoam Based on Starch Mixture of Cassava Peel and Kepok Banana Peel with Chitosan Additive to Improve Mechanical and Physical Characteristics

Biodegradable foam(biofoam) is a type of bioplastic that used as an alternative packaging to replace styrofoam which safe and environmentally friendly. This study aims determine the characteristics biofoam made from cassava peel starch (A) banana (B), well effect adding chitosan physical, mechanical, biodegradation properties resulting biofoam. In manufacture biofoam, variation A:B ratio 1:0; 3:2; 1:1 (%w/w). While content added was 0%, 15%, 30% by weight blowing agent NaHCO3 with 12% starch. The production carried out using thermopressing method printing temperature 125°C time 7 minutes. results were characterized density, water absorption, compressive strength, biodegradation, FTIR functional groups. Based on research results, it known close commercial standards, namely 3:2 addition 15% density value 0.560 g/cm3, absorption capacity 33.68%, strength 5, 05 MPa, decomposition power 17.44%. These variations have groups N–H, O–H, C–H, C=O, C–N, C–O.