GREEN SYNTHESIS OF CELLULOSE DIACETATE FROM PINEAPPLE LEAF FIBERS TO IMPROVE THE MECHANICAL PROPERTIES OF EDIBLE PLASTICS MADE FROM TAPIOCA STARCHSiswanto, Pradita Denia Abrista and Mohd Zaki Mohd Yusoff
The purpose of research is to improve the characterization of mechanical properties in edible plastic made from tapioca starch with the addition of cellulose-diacetate from pineapple fiber as a substitute of plastic based packaging. Edible plastic was made with hydrolysis method with the comparison of 50 g of tapioca starch in 50 ml solvent. pH value used in solvent was 7. The composition of edible plastic were 7.5 g of hydrolysis product, 100 ml aquades, 45 ml of 96% ethanol, 1.2 ml glycerol and cellulose diacetate from pineapple fiber varies from 0,2%, 0,4%, 0,6%, 0,8%, 1%. In general, the plastics produced were stable enough with the power of stretch between 89,33-115,83 kgf/cm2 and elasticity between 49,6-60%. This edible plastic made from pineapple fiber could react to form some new clusters which are CO-CH2 and P-H.