Growth potential of Yersinia enterocolitica in pasteurised cow's and goat's milk stored at 8 °C and 24 °C

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62157124%3A16270%2F17%3A43876150" target="_blank" >RIV/62157124:16270/17:43876150 - isvavai.cz</a>

Alternative codes found

RIV/00216224:14110/17:00096204

Result on the web

<a href="http://dx.doi.org/10.1016/j.foodcont.2016.11.006" target="_blank" >http://dx.doi.org/10.1016/j.foodcont.2016.11.006</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.foodcont.2016.11.006" target="_blank" >10.1016/j.foodcont.2016.11.006</a>

Result language

angličtina

Original language name

Growth potential of Yersinia enterocolitica in pasteurised cow's and goat's milk stored at 8 °C and 24 °C

Original language description

The study examines the growth potential of Y. enterocolitica in pasteurised cow&apos;s and goat&apos;s milk at different storage conditions (at a refrigerated temperature of 8 °C and an improper storage temperature of 24 °C). Y. enterocolitica growth dynamics was studied using a mathematical model for microbial growth. The behaviour of Y. enterocolitica depends on storage temperature and inoculum size and does not differ between cow&apos;s and goat&apos;s milk. The growth curve of Y. enterocolitica cultivated at 8 °C included the lag, exponential, and stationary phases. Both, the duration of the lag phase and growth rate did not differ between milk samples inoculated with the low (approximately 1 log cfu.ml-1) or high (3 log cfu.ml-1) inoculum size. The stationary phase was reached within eight and six days with the low and high inoculum size, respectively. The growth of the bacteria at 24 °C was exponential from the first hour, peaking within two to three days or slightly later with the low inoculum size. The maximum cell concentration did not depend on inoculum size and cultivation temperature, reaching 9 log cfu.ml-1 in all cases. Due to its composition and absence of competitive microflora, pasteurised milk provides a favourable environment for the growth of Y. enterocolitica. In case of contamination of pasteurised milk, even with a low amount of Y. enterocolitica, the bacterium multiplies to an infective dose within hours or days, depending on the storage temperature.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10606 - Microbiology

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Food Control

ISSN

0956-7135

e-ISSN

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Volume of the periodical

73

Issue of the periodical within the volume

MAR 2017

Country of publishing house

GB - UNITED KINGDOM

Number of pages

5

Pages from-to

1415-1419

UT code for WoS article

000405537400078

EID of the result in the Scopus database

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