FORMULATION OF CAPSULE SHELL FROM CORNCOB HEMICELLULOSE COMBINED WITH ISOLATED SODIUM ALGINATE

Corncob contains the highest hemicellulose compared to other agricultural wastes such as bagasse, oats hulls. The aimed of this research was to formulate capsule shell from hemicellulose in corncob’s waste combined with sodium alginate isolated with various compositions, namely Formula F1 (1: 1), F2 (2: 1) and F3 (3: 1). The characterization test of corncob hemicellulose consists of the organoleptic test, solubility test, FTIR test, while characterization of sodium alginate consists of the organoleptic test, pH determination, viscosity test, determination of sodium hypochlorite level in sodium alginate and FTIR. Capsule shell specifications were captured by measuring the length and diameter of the capsule shell, weighing the capsule, observing the capsule shell’s color, measuring capsule shell’s volume, conducting brittleness test, disintegration time test, and weight uniformity test. The yield of hemicellulose obtained from 500 g of corncob powder was 61 g (12.2%). The yield of sodium alginate from 50 g of isolated seaweed Sargassum plagyophyllum was 10.57 g (21.14%). The characterization result of sodium alginate was pH 8,1, viscosity 63,1cps, sodium hypochlorite 3,36%, FTIR result showed OH, C-O, and C = O group. The specification of the combined hemicellulose capsule shell was determined. The test result showed that the best Formula F (3) has a length of 18.33 (mm), diameter 6.5 (mm), weight 54.13 (mg), brown color and with 0.678 ml in volume. Based on the fragility test, there is no fragile capsule. The disintegration time test result was 29.66 minutes (with disc method), the weighted uniformity test result was the average of capsule shell weight 3.8542 g.