J 2019

The effect of selected preservatives on the growth of Listeria monocytogenes in ready-to-eat foods

NECIDOVÁ, Lenka, Bohdana MRNOUSOVA, Danka HARUŠTIAKOVÁ, Sarka BURSOVA, Bohumira JANSTOVA et. al.

Základní údaje

Originální název

The effect of selected preservatives on the growth of Listeria monocytogenes in ready-to-eat foods

Autoři

NECIDOVÁ, Lenka (203 Česká republika, garant), Bohdana MRNOUSOVA (203 Česká republika), Danka HARUŠTIAKOVÁ (703 Slovensko, domácí), Sarka BURSOVA (203 Česká republika), Bohumira JANSTOVA (203 Česká republika) a Jozef GOLIANE (703 Slovensko)

Vydání

LWT-Food Science and Technology, Amsterdam, Elsevier Science BV, 2019, 0023-6438

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

40401 Agricultural biotechnology and food biotechnology

Stát vydavatele

Nizozemské království

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Impakt faktor

Impact factor: 4.006

Kód RIV

RIV/00216224:14310/19:00112477

Organizační jednotka

Přírodovědecká fakulta

UT WoS

000491684900060

Klíčová slova anglicky

Food safety; Sodium benzoate; Potassium sorbate; Intrinsic factors

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 29. 3. 2020 19:53, Mgr. Marie Šípková, DiS.

Anotace

V originále

Our study evaluated the possibility of survival and growth of L. monocytogenes in 9 types of ready-to-eat foods. The evaluation was focused on the effectiveness of selected preservatives, namely sodium benzoate mixed with potassium sorbate (E 211 and E 202) and a commercially available preservative Defence JB. All delicatessen products were stored at 5 or 6 degrees C. The enumeration of L. monocytogenes was carried out in accordance with the reference ISO method. In most tested products, L. monocytogenes was unable to proliferate and its counts at the end of storage were significantly lower than those at the baseline after the artificial inoculation. This holds true both for samples with preservatives and for those without any preservative. The only exceptions were pasta salad and hard-boiled eggs in mayonnaise, with L. monocytogenes reaching the same (hard-boiled eggs in mayonnaise) or even higher counts (pasta salad) at the end of storage than at the baseline, both in the presence and absence of preservatives. Our results suggest that synergistic effects of intrinsic factors such as pH and a(w) with low storage temperatures plays a greater role in controlling L. monocytogenes growth than the tested preservatives (sodium benzoate/potassium sorbate and Defence JB).