Synthesis and Its Application as Packaging of Bioplastic from Rice Huck Cellulose Citrate Using Chitosan and Sorbitol Plasticizers

Abstract

Cellulose citrate was synthesized from rice huck cellulose.The extraction process used were maceration, delignification, hydrolysis, and bleaching.Cellulose citrate was synthesized through an esterification reaction between cellulose and citric acid and characterized using FTIR.FTIR results showed that there were two main peaks found in the modification of cellulose citrate, the hydroxyl group (-OH) at 3442.94 cm -1 and ester group (C=O) at 1741.72 cm -1 .Cellulose citrate was reacted with chitosan and sorbitol plasticizer to produce bioplastics.The resulting product was characterized using Fourier Transform Infra Red (FTIR), X-Ray Diffraction (XRD), and Universal Testing Machine (UTM).The mechanical properties of bioplastics were tested using the ASTM D638 method.The optimum bioplastic at the 0.3 M of citric acid concentration, and 10.76 MPa tensile strength and 4.08% of elongation.The bioplastics can be degraded within 21 days and mass of loss of 10.04%, a degradation rate of 0.0010 g/day and 192 days complete degradation time.

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