Title: OBSERVATION ON GERMICIDAL EFFICACY OF FOUR DISINFECTANTS USED IN FOOD INDUSTRY AGAINST Listeria monocytogenes
Abstract: Objective To observe the germicidal efficacy of common disinfectants used in food industry against Listeria monocytogenes. Methods The germicidal efficacy of common disinfectants used in food industry was evaluated by suspension quantitative germicidal test method. Results The killing rate of L. monocytogenes exposed to disinfectants solution containing peracetic acid,chlorine dioxide or sodium hypochlorite 100 mg / L for 1 min,or the disinfectant solution containing hydrogen peroxide 20 g / L for 30 min,were 100% without organic matter. In the presence of organic matter,to achieve the same germicidal efficacy against L. monocytogenes,the concentration of disinfectant solution containing peracetic acid or hydrogen peroxide did not change,or the concentration of disinfectant solution containing chlorine dioxide was 400 mg /L for 3min,or the concentration of disinfectant solution containing sodium hypochlorite was 200 mg / L for 30 min. Conclusion These four common disinfectants used in food industry have good germicidal efficacy against L. monocytogenes at low concentration,but the germicidal effect can be affected by the organic matter.
Publication Year: 2014
Publication Date: 2014-01-01
Language: en
Type: article
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