Listeria monocytogenes IN DAIRY PRODUCTS OCCURRENCE, MONITORING AND SURVEILLANCE DOI Creative Commons

Cristina Stefania AFLOAREI,

Amelia Buculei, Ancuța Chetrariu

et al.

Journal of Applied Life Sciences and Environment, Journal Year: 2024, Volume and Issue: 57(4(200)/2024), P. 599 - 615

Published: Dec. 23, 2024

Cross-contamination with foodborne microorganisms is a challenge at every stage of food preparation. Listeria monocytogenes poses serious and persistent problems for the industry because its ability to withstand broad range temperatures pH levels thrive under high salt concentrations. These factors significantly increase risks consumers. Although uncommon in general population, bacterium frequently isolated from environmental sources. The prevalence systemic listeriosis notably higher among vulnerable groups, such as elderly, pregnant women, individuals weakened immune systems. Among species within genus, L. most significant contexts capacity proliferation adaptability changing environments. Advancements detection technologies have enabled identification more outbreaks fewer cases per incident. To monitor validate efficacy control measures, robust monitoring programmes are essential. include establishing protocols sampling detection, determining frequency, selecting zones, implementing corrective actions. This study aims review specialist literature on management, surveillance, dairy products.

Language: Английский

High-pressure processing (HPP) alters tetracycline resistance in Listeria monocytogenes: A phenotypic and genotypic study DOI Creative Commons
Patryk Adamski, Arkadiusz Zakrzewski, Patryk Wiśniewski

et al.

NFS Journal, Journal Year: 2025, Volume and Issue: unknown, P. 100223 - 100223

Published: March 1, 2025

Language: Английский

Citations

0
Microbiological Assessment of Dairy Products Produced by Small-Scale Dairy Producers in Serbia DOI Creative Commons
Biljana Aleksić, Božidar Udovički, Jovana Kovačević

et al.

Foods, Journal Year: 2024, Volume and Issue: 13(10), P. 1456 - 1456

Published: May 8, 2024

The microbiological quality of dairy products from small-scale producers in Serbia was analysed. A total 302 [raw (n = 111) and pasteurized milk cheeses 79) kajmak 112)], were collected tested for the presence pathogens, Listeria monocytogenes Salmonella spp., enumerated Coagulase-positive staphylococci (CPS), Escherichia coli, yeasts moulds. None samples positive while L. recovered one raw cheese five samples. Raw also had higher levels indicator microorganisms, namely E. coli yeast Molecular serotyping grouped isolates into serogroups 1 (1/2a 3a) 3 (1/2b, 3b, 7). When exposed to eight antibiotics, mostly sensitive, with exception oxacillin reduced susceptibility clindamycin, penicillin G, trimethoprim/sulfamethoxazole, emphasizing importance continuous surveillance antimicrobial resistance. Samples that spp. loads moulds, suggesting lapses hygiene practices during production. Collectively, these data emphasize need improved food safety among producers. This is crucial reduce microbial contamination improve both Serbian market.

Language: Английский

Citations

2
Molecular serogrouping and virulence of Listeria monocytogenes from sheep and goat milk in Jordan DOI
Mohammad M. Obaidat

International Dairy Journal, Journal Year: 2024, Volume and Issue: 158, P. 106051 - 106051

Published: July 30, 2024

Language: Английский

Citations

2
Variability in cadmium tolerance of closely related Listeria monocytogenes isolates originating from dairy processing environments DOI Creative Commons

Andrea Domen,

John R. Porter,

Jared Johnson

et al.

Applied and Environmental Microbiology, Journal Year: 2024, Volume and Issue: 91(1)

Published: Nov. 21, 2024

Increased tolerance to cadmium in Listeria monocytogenes has been suggested contribute their persistence natural and food production environments. This study investigated the phenotypic response of L. strains with efflux pump cadAC (variants 1-4) related cadA1C1. Growth variant (n = 5) 0 µM-120 µM salts (CdCl2, CdSO4) Mueller-Hinton broth (MHB) was evaluated. Additionally, 88 from dairy processing facilities were exposed 43.8 CdCl2 MHB, lag phase duration (LPD) measured. Strains cadA1 through cadA3 showed similar growth trends presence cadmium, while cadA4 (Scott A) had highest minimum inhibitory concentration (175 µM). varied between two salts, CdSO4 significantly increasing LPD (P < 0.05) compared CdCl2. In CdCl2, displayed LPDs ranging 0.99 ± 0.14 h 6.44 0.08 h, no clear genomic differences explaining this variability. without cadA did not grow at but exhibited low (10.9 CdCl2), potentially due non-specific soft metal ATPases (626 aa; 737 aa) resistance proteins encoded by czc genes (289 291 303 within chromosomes. These findings enhance our understanding underscore need for further research explore genetic physiological factors underlying these trends. Mobile elements its survival focused on how different variants gene group closely cadA1C1 respond exposure. When chloride sulfate, we observed varying patterns, a longer sulfate chloride. trends, whereas strain value. Among facilities, significant despite core genome similarities, indicating other tolerance. Since studies are limited, rare comparisons strains, makes an important observation contribution providing numerous same clonal (<16 single nucleotide polymorphisms).

Language: Английский

Citations

0
Analysis of Genetic Determinants Encoding Resistance to Heavy Metals and Disinfectants in Listeria monocytogenes DOI Creative Commons
Elżbieta Maćkiw, Joanna Kowalska, Dorota Korsak

et al.

Foods, Journal Year: 2024, Volume and Issue: 13(23), P. 3936 - 3936

Published: Dec. 6, 2024

is an important foodborne pathogen causing listeriosis.

Language: Английский

Citations

0
Listeria monocytogenes IN DAIRY PRODUCTS OCCURRENCE, MONITORING AND SURVEILLANCE DOI Creative Commons

Cristina Stefania AFLOAREI,

Amelia Buculei, Ancuța Chetrariu

et al.

Journal of Applied Life Sciences and Environment, Journal Year: 2024, Volume and Issue: 57(4(200)/2024), P. 599 - 615

Published: Dec. 23, 2024

Cross-contamination with foodborne microorganisms is a challenge at every stage of food preparation. Listeria monocytogenes poses serious and persistent problems for the industry because its ability to withstand broad range temperatures pH levels thrive under high salt concentrations. These factors significantly increase risks consumers. Although uncommon in general population, bacterium frequently isolated from environmental sources. The prevalence systemic listeriosis notably higher among vulnerable groups, such as elderly, pregnant women, individuals weakened immune systems. Among species within genus, L. most significant contexts capacity proliferation adaptability changing environments. Advancements detection technologies have enabled identification more outbreaks fewer cases per incident. To monitor validate efficacy control measures, robust monitoring programmes are essential. include establishing protocols sampling detection, determining frequency, selecting zones, implementing corrective actions. This study aims review specialist literature on management, surveillance, dairy products.

Language: Английский

Citations

0