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观察DXB-2型电子保鲜器对常见肠道致病菌的抑菌作用．结果显示：保鲜器工作1小时对大肠杆菌、痢疾杆菌、伤寒杆菌均有抑制作用（P＜0．01）；保鲜器工作2小时，对以上细菌的抑制作用增强，并对金黄色葡萄球菌、枯草杆菌也有抑制作用（P＜0．01，P＜0．05）．但保鲜器工作2小时与3小时抑菌作用无差异（P＞0．05）。
To observe the antibacterial effect of DXB-2 electronic preservative on common intestinal pathogens. The results showed that: Preservatives for 1 hour on Escherichia coli, Shigella, Salmonella typhi inhibited (P <0.01); Preservative work for 2 hours, the inhibition of these bacteria increased, and Staphylococcus aureus, Bacillus subtilis also inhibited (P <0.01, P <0.05). However, there was no difference (P> 0.05) in the bacteriostasis between the fresh-keeping device for 2 hours and 3 hours.