Multiplication of Listeria in milk products |
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| Authors: | Karpova T I Shustrova N M Snegireva A E Sheveleva S A Kubaeva I B Tartakovskiĭ I S |
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| Affiliation: | Gamaleya Research Institute of Epidemiology and Microbiology, Research Institute of Nutrition, Moscow, Russia. |
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| Abstract: | The results of the evaluation of the multiplication dynamics of Listeria cells in milk and Bifidok, a lactic acid product, are presented. The samples were inoculated on thioglycol agar and studied at different exposure time after incubation at 37 degrees C, 20 degrees C and 4 degrees C. The study revealed the intensive multiplication of Listeria cells in milk, also during storage in a household refrigerator. The presence of bifidobacteria mixed with kefir-producing culture in dairy products was shown to essentially inhibit the growth of Listeria cells which were not detected by bacteriological techniques on day 7. |
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