Crescentiana Dewi Poeloengasih, Frida Dwi Anggraeni
This study investigates the development of sago (Metroxylon sagu) starch-based edible films for potential hard capsule application. In its conduct, films were made with different amount of starch (9, 10, and 11% w/v) and glycerol (25, 30, 35, and 40% w/w starch) by casting method. The films were characterized by physicochemical, water vapor barrier properties and mechanical properties analysis. The results reveal that sago starch films generally have low solubility in water. It was also found that higher glycerol content leads to decreased tensile strength and increased elongation of the films, while constant glycerol content with higher amylose content results in increased tensile strength and decreased elongation of the films. The increase of water vapor permeability of all films is in line with that of glycerol concentration. Films prepared with 10% of sago starch and 25% of glycerol have the highest tensile strength, the lowest elongation and water vapor permeability, a low moisture content and solubility. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Technical Management Unit for Chemical Process and Technology Development, Indonesian Institute of Sciences, PO Box 174 WNO, Playen, Gunungkidul, 55861, Indonesia; Faculty of Agriculture, Widyagama University, Malang, Indonesia
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