关键词: 消毒剂, 沙门氏菌, 大肠杆菌, 抑菌效果

Abstract: To investigate the antibacterial effect of six kinds of disinfectants on Salmonella and Escherichia coli, to determine the tolerance of bacterias to disinfectants, and to provide important evidence for the scientific use of disinfectants in the barrier environment of laboratory animals. Method Salmonella and Escherichia coli were isolated and the bacteriostatic and bactericidal effects of various disinfectants were determined by filter paper method . Result The result showed that 0. 05% Goudian had significantly higher bacteriostatic effect on Salmonella and Escherichiacoli than other disinfectants (P<0.05 ) , followed by 0. 05% Baidu and 0. 25% glutaraldehyde solution , 0.2% peracetic acid , 0.1% sodium dichloroisocyanurate powder and 0.25% neogel. Conclusion In this experiment , 0.05 % Goudian is the most effective disinfectant for Salmonella and Escherichia coli , which can provide important reference for the future use of animal barrier environment disinfection .

Key words: disinfectant, Salmonella, Escherichia coli , antibacterial effect