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Resistance of phages of mesophilic lactic streptococci to external factors

Resistance of phages of mesophilic lactic streptococci to external factors

Trudy, Vsesoyuznyi Nauchno issledovatel' skii Institut Maslodel' noi i Syrodel' noi Promyshlennosti (30): 46-49, 91

Inactivation effects of heat treatment, UV irradiation, and H2O2 were studied on 52 bacteriophages isolated in 13 cheese factories in different parts of USSR. It was found that the individual phages differed in their resistance to heat treatment; a milk pasteurization temp. of 72 deg C for 15-20 s was insufficient to inactivate the majority of the phages studied. Heat treatment of milk and cream at 95 deg C for >5 min destroyed completely the phages studied.

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Accession: 000969831

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