The types of microorganisms,chitosan itself and the influence of environmental factors on chitosan's antimicrobial properties were introduced,the antimicrobial mechanism of chitosan was summarized,the recent research results of chitosan composite antimicrobial materials with metal oxides were reviewed,such as copper oxide,zinc oxide,and titanium dioxide.The application of some of the chitosan-metal oxide composite antimicrobial materials in the areas of food packaging and bio-medical plastics were demonstrated.Finally,the shortcomings of this kind of composite antimicrobial materials research and the further development trend weer analyzed and prospected.It is pointed out that the antibacterial mechanism of chitosan metal oxide compos-ite antibacterial materials needs to be further studied.In the future,green and friendly preparation processes will be continuously developed,and efficient antibacterial materials will be designed according to specific application scenarios.
chitosanmetal oxideantimicrobial activityantimicrobial mechanismcomposites material
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