Journal of Consumer protection and Food safety, Volume (12), No (4), Year (2017-7) , Pages (341-347)

Title : ( Thermal inactivation of MS2 bacteriophage as a surrogate of enteric viruses in cow milk )

Authors: seyed reza sadat hosseini , Mohammad Reza Edalatian Dovom , Masoud Yavarmanesh , M. Abbaszadegan ,

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Abstract

This study examined the effect of 4 thermal processing methods on inactivation of male-specific bacteriophage MS2 in cow milk. MS2 was used as a viral surrogate of enteric viruses in this inactivation study. Milk samples were spiked at 10, 103, 105, and 107 PFU/ml with a milk fat content of 1.5, 2.5 and 3% weight per volume. We found that with higher milk fat content, survival of MS2 increased in the samples spiked with 105 or 107 PFU/ml, indicating that increasing the milk fat content had a significant effect on the survival of MS2 (p < 0.05) in the thermally processed samples. The inactivation results suggest that the most effective thermal processing for viral inactivation in cow milk was having a high temperature long time (HTLT: 85 °C for 30 min) followed by boiling for 2 min. The least effective thermal processing was low temperature for a long time. Therefore, inactivation of enteric viruses in dairy products with a high level of contamination can be effectively achieved under severe thermal processing such as HTLT, or boiling.

Keywords

MS2 bacteriophage Thermal processing Cow milk Enteric viruses
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@article{paperid:1064543,
author = {Sadat Hosseini, Seyed Reza and Edalatian Dovom, Mohammad Reza and Yavarmanesh, Masoud and M. Abbaszadegan},
title = {Thermal inactivation of MS2 bacteriophage as a surrogate of enteric viruses in cow milk},
journal = {Journal of Consumer protection and Food safety},
year = {2017},
volume = {12},
number = {4},
month = {July},
issn = {1661-5751},
pages = {341--347},
numpages = {6},
keywords = {MS2 bacteriophage Thermal processing Cow milk Enteric viruses},
}

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%0 Journal Article
%T Thermal inactivation of MS2 bacteriophage as a surrogate of enteric viruses in cow milk
%A Sadat Hosseini, Seyed Reza
%A Edalatian Dovom, Mohammad Reza
%A Yavarmanesh, Masoud
%A M. Abbaszadegan
%J Journal of Consumer protection and Food safety
%@ 1661-5751
%D 2017

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