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A physicochemical study of sugar palm (Arenga Pinnata) starch films plasticized by glycerol and sorbitol AIP Conference Proceedings 1711, 080003 (2016) (20, 30, 40 and 50% w/w starch). The film samples were stored for 1, 4 and 8 week at 25 o C under 52%RH. The results showed that there is an increasing tendency of thickness, moisture content, solubility, and elongation at break as glycerol concentration increased, whereas tensile strength decreased as glycerol concentration were raised. The moisture content and solubility of plasticized film initially increased after 1 week but decreased after 4 weeks of storage. Aging films affected to mechanical properties, increasing resistance but reducing their stretchability. The XRD results showed that the crystallinity of sample with various glycerol concentration tends to decrease after 8 weeks storage.

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