Konjac mannan is a high molecular weight water-soluble non-ionic glucomannan extracted from the tubers of the Amorphophallus konjac plant. Konjac glucomannan(KGM) is a linear random copolymer of (-4)-linked B -D-mannose and P -D-glucose, containing mannose and glucose residues in a molar ratio of 1.6:1 or 3:2 with a low degree of acetyl groi ps (approximately 1 acetyl group per 19 residues at the C-6 position). The physicochemical propercies and applications are controlled by the presence of the ...