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Ulocladium atrum inulinase was immobilized on different composite membranes composed of chitosan/nonwoven fabrics. Km values of free and immobilized U. atrum inulinase on different composite membranes were calculated. The enzyme had optimum pH at 5.6 for free and immobilized U. atrum inulinase on polyester nonwoven fabric coated with 3% chitosan solution (PPNWF3), but optimum pH was 5 for immobilized...
2,2-Azobis(2-methylpropionitrile) (AMPN) was investigated as initiator for the graft copolymerization of methacrylic acid (MAA) onto chitosan. A number of variables in the grafting reaction were investigated, including AMPN and monomer concentration, material to liquor ratio, duration, and temperature of polymerization reaction. The graft copolymers were evaluated in terms of graft yield, homopolymer,...
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