Biotechnology Letters, Vol.20, No.3, 253-255, 1998
Chemically induced gelation of polysaccharide produced by Methylobacterium organophilum
Both attractive and repulsive interactions between entangled Methylan chains were investigated with divalent cations that might form a salt bridge or generate an electrostatic attraction between the negatively charged groups in Methylan chains. The chemically induced gelation produces a thermally reversible gel. The gel strength was proportional to Methylan concentration in range from 1 to 5 g/l and was controlled by both Methylan and salt concentrations.