Assessment of the Cronobacter sakazakii risk in reconstituted infant formula

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62157124%3A16270%2F25%3A43882705" target="_blank" >RIV/62157124:16270/25:43882705 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216224:14310/25:00141534

Výsledek na webu

<a href="https://doi.org/10.2754/avb202594010067" target="_blank" >https://doi.org/10.2754/avb202594010067</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.2754/avb202594010067" target="_blank" >10.2754/avb202594010067</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Assessment of the Cronobacter sakazakii risk in reconstituted infant formula

Popis výsledku v původním jazyce

The study focused on assessing Cronobacter sakazakii growth in reconstituted powdered infant formula at temperatures ranging from 5 °C to 48 °C using the Baranyi-Roberts model. The count of C. sakazakii was determined by the plate method on ESIA agar (44 °C, 24 h). Bacteria grew in reconstituted milk only at temperatures above 8 °C. The lag phase duration decreased with increasing temperature, from approximately 123.0–141.0 h at 8 °C to 0.931–1.281 h at 44 °C. The growth rate ranged from 0.025–0.027 ln cfu/ml/h (8 °C) to 2.441–2.633 ln cfu/ml/h (44 °C). The resulting growth models imply an increase of more than 4 orders of magnitude in the number of C. sakazakii in less than 17 h at 24 °C; at temperatures of 27 °C and above, the bacteria reach the critical concentration considered in our study (8 log cfu) in a few hours (4.5–11.9 h). In conclusion, it is unsafe and inappropriate to store reconstituted infant milk at temperatures higher than 8 °C.

Název v anglickém jazyce

Assessment of the Cronobacter sakazakii risk in reconstituted infant formula

Popis výsledku anglicky

The study focused on assessing Cronobacter sakazakii growth in reconstituted powdered infant formula at temperatures ranging from 5 °C to 48 °C using the Baranyi-Roberts model. The count of C. sakazakii was determined by the plate method on ESIA agar (44 °C, 24 h). Bacteria grew in reconstituted milk only at temperatures above 8 °C. The lag phase duration decreased with increasing temperature, from approximately 123.0–141.0 h at 8 °C to 0.931–1.281 h at 44 °C. The growth rate ranged from 0.025–0.027 ln cfu/ml/h (8 °C) to 2.441–2.633 ln cfu/ml/h (44 °C). The resulting growth models imply an increase of more than 4 orders of magnitude in the number of C. sakazakii in less than 17 h at 24 °C; at temperatures of 27 °C and above, the bacteria reach the critical concentration considered in our study (8 log cfu) in a few hours (4.5–11.9 h). In conclusion, it is unsafe and inappropriate to store reconstituted infant milk at temperatures higher than 8 °C.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

40301 - Veterinary science

Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Acta veterinaria Brno

ISSN

0001-7213

e-ISSN

1801-7576

Svazek periodika

94

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

9

Strana od-do

67-75

Kód UT WoS článku

001460138200009

EID výsledku v databázi Scopus

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