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정병옥(Byung Ok Jung),정석진(Suk Jin Chung),이영무(Young Moo Lee),김재진(Jae Jin Kim),서상봉(Sang Bong Suh),이경원(Gyung Won Lee) 한국키틴키토산학회 2001 한국키틴키토산학회지 Vol.6 No.1
N/A Antimicrobial activities and antioxidative activities of several water soluble chitosan derivatives with different molecular weights were measured. Antimicrobial activities of chitosans for test cells showed that Staphylococcus aureus exhibited the best activities followed by Escherichia coli, Pseudomonas aeruginosa, Candida albicans. The concentration of the growth suppression of S. aureus was the lowest, followed by E. coli, P, aeruginosa, and C. albicans. Antioxidative activities of chitosan derivatives tended to increase with the molecular weights of chitosan derivatives. Below MW of 2,100, they did not show the antioxidative activities while above 125,000 chitosan derivatives showed the excellent antioxidative activities. High concentration of chitosan derivatives guaranteed the increased antioxidative effects.