Vliv zmražení vzorků mléka na recovery alimentárních patogenů a indikátorových mikroorganismů

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027162%3A_____%2F07%3A%230000186" target="_blank" >RIV/00027162:_____/07:#0000186 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of freezing milk samples on the recovery of alimentary pathogens and indicator microorganisms

Popis výsledku v původním jazyce

The objective was to determine the effects of freezing and subsequent storage on quantitative results of bacteriologic culturing of selected alimentary pathogens and indicator microorganisms in milk. It was documented that freezing had a considerable adverse effect on the recovery of shigatoxigenic E. coli after 7 days of storage. Decline in counts of coliform bacteria and psychrotrophic microorganisms was detected as soon as after 72 hours storage. The decline in counts of E. coli and psychrotrophic microorganisms continued with the time of storage. In contrast, no effect was recorded for L. monocytogenes and total bacterial count. Freezing caused a slight increase in S. aureus counts in milk samples after 72 hours and 7 days of storage. The results of this study indicate that freezing of milk samples is unsuitable for sample storage before the assessment of hygienic quality because potential misdiagnosis may be high.

Název v anglickém jazyce

Effect of freezing milk samples on the recovery of alimentary pathogens and indicator microorganisms

Popis výsledku anglicky

The objective was to determine the effects of freezing and subsequent storage on quantitative results of bacteriologic culturing of selected alimentary pathogens and indicator microorganisms in milk. It was documented that freezing had a considerable adverse effect on the recovery of shigatoxigenic E. coli after 7 days of storage. Decline in counts of coliform bacteria and psychrotrophic microorganisms was detected as soon as after 72 hours storage. The decline in counts of E. coli and psychrotrophic microorganisms continued with the time of storage. In contrast, no effect was recorded for L. monocytogenes and total bacterial count. Freezing caused a slight increase in S. aureus counts in milk samples after 72 hours and 7 days of storage. The results of this study indicate that freezing of milk samples is unsuitable for sample storage before the assessment of hygienic quality because potential misdiagnosis may be high.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

FM - Hygiena

OECD FORD obor

—

Projekt

—

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2007

Kód důvěrnosti údajů

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

Název periodika

Acta Veterinaria Brno

ISSN

0236-6290

e-ISSN

—

Svazek periodika

76

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

7

Strana od-do

301-307

Kód UT WoS článku

—

EID výsledku v databázi Scopus

—