The antibacterial activities of microwave-synthesized chitosan were examined against
two gram-negative ( Escherichia coli and Salmonella typhimurium) and two gram-positive
(Staphylococcus aureus and Bacillus cereus), tested chitosan markedly inhibited the growth of tested
bacteria although inhibitory effects differed with molecular weight (Mw) of chitosan and the species
of bacteria. Generally, the microwave technique can be very useful for synthesizing good functional
properties chitosan with rapid and clean chemistry.