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characteristics of glucomannan isolated from fresh tuber of porang (amorphophallus muelleri blume).porang is a potential source of glucomannan. this research objective was to find a direct glucomannan isolation method from fresh porang corm to produce high purity glucomannan. two isolation methods were performed. in first method, sample was water dissolved using al2(so4)3 as flocculant for 15 (aa15) or 30 (aa30) minutes with purification. in second method, sample was repeatedly milled using ethanol as solvent and filtered for 5 (etoh5) or 7 (etoh7) times without purification. the characterist ...201727842852
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