J 2025

Assessment of the Cronobacter sakazakii risk in reconstituted infant formula

BURSOVA, Sarka; Danka HARUŠTIAKOVÁ; Lenka NECIDOVA; Iveta VANKOVA; Veronika CURECKOVA et. al.

Základní údaje

Originální název

Assessment of the Cronobacter sakazakii risk in reconstituted infant formula

Autoři

BURSOVA, Sarka; Danka HARUŠTIAKOVÁ; Lenka NECIDOVA; Iveta VANKOVA; Veronika CURECKOVA; Matej TKAC; Katerina STOJANOVA; Radka HULANKOVA a Jozef GOLIAN

Vydání

Acta veterinaria (Brno), Brno, University of Veterinary and Pharmaceutical Sciences Brno, 2025, 0001-7213

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Stát vydavatele

Česká republika

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Organizace

Přírodovědecká fakulta – Masarykova univerzita – Repozitář

UT WoS

001460138200009

EID Scopus

2-s2.0-105001805905

Klíčová slova anglicky

Predictive microbiology; Baranyi-Roberts model; lag phase; growth rate
Změněno: 18. 7. 2025 00:49, RNDr. Daniel Jakubík

Anotace

V originále

The study focused on assessing Cronobacter sakazakii growth in reconstituted powdered infant formula at temperatures ranging from 5 degrees C to 48 degrees C using the Baranyi-Roberts model. The count of C. sakazakii was determined by the plate method on ESIA agar (44 degrees C, 24 h). Bacteria grew in reconstituted milk only at temperatures above 8 degrees C. The lag phase duration decreased with increasing temperature, from approximately 123.0-141.0 h at 8 degrees C to 0.931-1.281 h at 44 degrees C. The growth rate ranged from 0.025-0.027 ln cfu/ml/h (8 degrees C) to 2.441-2.633 ln cfu/ml/h (44 degrees 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 degrees C; at temperatures of 27 degrees 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 degrees C.

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