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Research Publications (Food Safety)

The Food Safety Publications tracks research that is published across national and international peer-reviewed journals. Recent articles are available ahead of print and searchable by Journal, Article Title, and Category. The research publications are tracked across six categories: Bacterial Pathogens, Chemical Contaminants, Natural Toxins, Parasites, Produce Safety, and Viruses. Articles produced by USDA Grant Funding Agencies and FDA Grant Funding Agencies are also tracked.

Displaying 1 - 25 of 2601

  1. Cell-free supernatants of Bacillus subtilis and Bacillus polyfermenticus inhibit Listeria monocytogenes biofilm formation

    • Sat, 09/24/2022 - 04:00
    • Food Control
      • Bacterial pathogens
      • Listeria monocytogenes
  2. Rapid detection of Listeria monocytogenes in dairy products by a novel chemilumonogenic approach

    • Thu, 09/22/2022 - 04:00
    • Food Microbiology
    • Routine monitoring of foodborne pathogens such as Listeria monocytogenes in food processing environments are time-consuming necessities to ensure food safety. Alternative rapid diagnostic methods for pathogen detection are increasingly used, but often demand specialized equipment, making them unsuitable for on-site testing.

      • Bacterial pathogens
      • Listeria monocytogenes
  3. Molecular characterization and biofilm-formation analysis of Listeria monocytogenes, Salmonella spp., and Escherichia coli isolated from Brazilian swine slaughterhouses

    • Wed, 09/21/2022 - 04:00
    • PLOS ONE
    • by Rebecca Lavarini dos Santos, Emilia Fernanda Agostinho Davanzo, Joana Marchesini Palma, Virgílio Hipólito de Lemos Castro, Hayanna Maria Boaventura da Costa, Bruno Stéfano Lima Dallago, Simone Perecmanis, Ângela Patrícia Santana This study aimed to verify the presence of Listeria monocytogenes, Salmonella spp., and Escherichia coli in two Brazilian swine slaughterhouses, as well as to perform antibiograms, detect virulence and antimicrobial resistance genes, and

      • Bacterial pathogens
      • Listeria monocytogenes
      • Salmonella
  4. Response of sensitive and resistant Listeria monocytogenes strains against bacteriocins produced by different Enterococcus spp. strains

    • Sat, 09/17/2022 - 04:00
    • International Journal of Food Microbiology
    • Listeria monocytogenes is a relevant foodborne pathogen causing invasive listeriosis in humans, a disease with high mortality rates. Its ubiquity and growth characteristics enable this pathogen to survive harsh food processing environments. The addition of bacteriocins, antimicrobial peptides ribosomally synthesized by certain bacteria, appears as a natural alternative to control this pathogen in food. However, the emergence of L.

      • Bacterial pathogens
      • Listeria monocytogenes
  5. Quantitative risk assessment model to investigate the public health impact of varying Listeria monocytogenes allowable levels in different food commodities: A retrospective analysis

    • Fri, 09/16/2022 - 04:00
    • International Journal of Food Microbiology
    • Invasive listeriosis is a potentially fatal foodborne disease that according to this study may affect up to 32.9 % of the US population considered as increased risk and including people with underlying conditions and co-morbidities. Listeria monocytogenes has been scrutinized in research and surveillance programs worldwide in Ready-to-Eat (RTE) food commodities (RTE salads, deli meats, soft/semi-soft cheese, seafood) and frozen vegetables in the last 30 years with an estimated overal

      • Bacterial pathogens
      • Listeria monocytogenes
  6. The Transcriptional Regulator SpxA1 Influences the Morphology and Virulence of Listeria monocytogenes

    • Thu, 09/15/2022 - 04:00
    • Infection and Immunity
    • Infection and Immunity, Ahead of Print. Listeria monocytogenes is a Gram-positive facultative anaerobe and an excellent model pathogen for investigating regulatory changes that occur during infection of a mammalian host. SpxA1 is a widely conserved transcriptional regulator that induces expression of peroxide-detoxifying genes in L. monocytogenes and is thus required for aerobic growth. SpxA1 is also required for L.

      • Bacterial pathogens
      • Listeria monocytogenes
  7. Listeria monocytogenes and Pseudomonas spp. distribution in a processing facility of spotted sorubim (Pseudoplatystoma corruscans) in Brazil

    • Wed, 09/14/2022 - 04:00
    • The ecology of Listeria monocytogenes and Pseudomonas spp. during the slaughtering of spotted sorubim ( Pseudoplatystoma corruscans ) in a fish processing facility was assessed. Fish samples (n = 28) were obtained in different points of slaughtering (A: arrival, B: washing, C: gutting, and D: cooling) and subjected to detection of L. monocytogenes and enumeration of Pseudomonas spp. High frequencies of Listeria spp. (17/28 to 22/28) and L.

      • Bacterial pathogens
      • Listeria monocytogenes
  8. Modeling the effect of Croton blanchetianus Baill essential oil on pathogenic and spoilage bacteria

    • Wed, 09/14/2022 - 04:00
    • Archives of Microbiology
    • This study aimed to evaluate and model the antimicrobial action of different concentrations of Croton blanchetianus essential oil (CBEO) on the behavior of six bacterial species in vitro. CBEO extraction was performed by hydrodistillation and characterized by CG-MS.

      • Bacterial pathogens
      • Listeria monocytogenes
      • Salmonella
      • Staphylococcus aureus
  9. Characterization of Listeria monocytogenes biofilm formation kinetics and biofilm transfer to cantaloupe surfaces

    • Mon, 09/12/2022 - 04:00
    • Food Research International
    • Listeria monocytogenes biofilm is a consistent source of cross-contamination, both in housing storage and food processing environments. This study monitored the dynamic process of L. monocytogenes ST9 and ST87 biofilms, as well as their cross-contamination behaviors at various stages of formation. Scanning Electron Microscopy (SEM) captured the honeycomb-like structures and extracellular polymeric substances (EPS) during the biofilm formation.

      • Bacterial pathogens
      • Listeria monocytogenes
  10. Prevalence, antibiotic resistance, and molecular epidemiology of Listeria monocytogenes isolated from imported foods in China during 2018 to 2020

    • Sat, 09/10/2022 - 04:00
    • International Journal of Food Microbiology
    • A total of 1797 imported food samples collected during 2018 to 2020 were investigated for Listeria monocytogenes. Antibiotic susceptibility tests and whole genome sequencing analysis were performed for the obtained isolates. The overall prevalence of L. monocytogenes was 5.62 %; the highest prevalence was observed for pork (13.65 %), followed by fish (6.25 %), sheep casing (6.06 %), chicken (3.61 %), and beef (2.06 %).

      • Bacterial pathogens
      • Listeria monocytogenes
  11. Comparison of DNA extraction methods for the quantification of Listeria monocytogenes in dairy products using real-time qPCR

    • Sat, 09/10/2022 - 04:00
    • Listeria monocytogenes is a common foodborne pathogen affecting public health. Thus, detecting L. monocytogenes even at low levels in food matrices is essential. However, the current culture methods used for its detection and quantification are time consuming and difficult owing to background flora and interference by food matrices. DNA-based assays depend on DNA extraction and purification techniques. No optimal DNA extraction kit has been developed for analyzing L.

      • Bacterial pathogens
      • Listeria monocytogenes
  12. Application of enterocin-whey films to reduce Listeria monocytogenes contamination on ripened cheese

    • Sat, 09/10/2022 - 04:00
    • Food Microbiology
    • An enterocin whey solution, obtained by growing Enterococcus faecalis L2B21K3 and L3A21K6 in sweet whey – enterocin whey solution (EWS), was incorporated into gelatin/glycerol films that were tested for the control of Listeria monocytogenes. The films containing enterocins produced by either strain (EWS L2 and EWS K6 films) were shown to serve as a suitable matrix for bacteriocin release, preserve the anti-listerial activity for up to 90 days.

      • Bacterial pathogens
      • Listeria monocytogenes
  13. Antibiogram profile and prevalence of multidrug-resistant listeriosis agents recovered from common South African ready-to-eat food matrices

    • Fri, 09/09/2022 - 04:00
    • In recent decades, there has been an increase in the reports of antimicrobial resistance of Listeria monocytogenes (Lm) constituting a serious threat to the therapeutic management of listeriosis infection. Our study profiled the antibiogram fingerprint of Lm isolates (n = 194) recovered from common South African ready-to-eat (RTE) foods. Lm isolates recovered from foods were tested against a panel of 22 antibiotics using the disc diffusion techniques.

      • Bacterial pathogens
      • Listeria monocytogenes
  14. Lifestyle of Listeria monocytogenes and food safety: Emerging listericidal technologies in the food industry

    • Wed, 09/07/2022 - 04:00
    • Critical Reviews in Food Science and Nutrition
    • Listeria monocytogenes, a causative agent of listeriosis, is a major foodborne pathogen. Among pathogens, L. monocytogenes stands out for its unique ecological and physiological characteristics. This distinct lifestyle of L. monocytogenes has a significant impact on food safety and public health, mainly through the ability of this pathogen to multiply at refrigeration temperature and to persist in the food processing environment.

      • Bacterial pathogens
      • Listeria monocytogenes
  15. The efficacy of nisin against Listeria monocytogenes on cold-smoked salmon at natural contamination levels is concentration-dependent and varies by serotype

    • Tue, 09/06/2022 - 04:00
    • Frontiers in Microbiology
    • Cold-smoked salmon is a ready-to-eat food product capable of supporting Listeria monocytogenes growth at refrigeration temperatures. While the FDA-approved antimicrobial nisin can be used to mitigate L. monocytogenes contamination, stresses associated with cold-smoked salmon and the associated processing environments may reduce nisin efficacy. A previous study in our laboratory showed that, at high inoculation levels, pre-exposure of L.

      • Bacterial pathogens
      • Listeria monocytogenes
  16. The bacteriocin Angicin interferes with bacterial membrane integrity through interaction with the mannose phosphotransferase system

    • Tue, 09/06/2022 - 04:00
    • Frontiers in Microbiology
    • In a natural environment, bacteria are members of multispecies communities. To compete with rival species, bacteria produce antimicrobial peptides (AMPs), called bacteriocins. Bacteriocins are small, cationic, ribosomally synthesized peptides, which normally inhibit closely related species of the producing organism. Bacteriocin production is best studied in lactic bacteria (LAB).

      • Bacterial pathogens
      • Listeria monocytogenes
  17. Role of FruR transcriptional regulator in virulence of Listeria monocytogenes and identification of its regulon

    • Sat, 09/03/2022 - 04:00
    • PLOS ONE
    • by Hossam Abdelhamed, Reshma Ramachandran, Lakshmi Narayanan, Shamima Islam, Ozdemir Ozan, Nancy Freitag, Mark L. Lawrence Listeria monocytogenes is a ubiquitous opportunistic foodborne pathogen capable of survival in various adverse environmental conditions. Pathogenesis of L.

      • Bacterial pathogens
      • Listeria monocytogenes
  18. Larval gut microbiome of Pelidnota luridipes (Coleoptera: Scarabaeidae): high bacterial diversity, different metabolic profiles on gut chambers and species with probiotic potential

    • Sat, 09/03/2022 - 04:00
    • World Journal of Microbiology and Biotechnology
    • Pelidnota luridipes Blanchard (1850) is a tropical beetle of the family Scarabaeidae, whose larvae live on wood without parental care. Microbiota of mid- and hindgut of larvae was evaluated by culture-dependent and independent methods, and the results show a diverse microbiota, with most species of bacteria and fungi shared between midgut and hindgut.

      • Bacterial pathogens
      • Listeria monocytogenes
  19. Phenyllactic acid application to control Listeria monocytogenes biofilms and its growth in milk and spiced beef

    • Fri, 09/02/2022 - 04:00
    • International Journal of Food Microbiology
    • Listeria monocytogenes, as a food-associated pathogen, is able to develop biofilms on different surfaces of food contact, which seriously threatens food safety. Phenyllactic acid (PLA) exhibits excellent inhibitory effects on many bacterial strains including L. monocytogenes.

      • Bacterial pathogens
      • Listeria monocytogenes
  20. The magnitude of cell invasion and cell-to-cell spread of Listeria monocytogenes is correlated with serotype-specific traits

    • Fri, 09/02/2022 - 04:00
    • International Journal of Food Microbiology
    • Listeriosis is a foodborne disease caused by the Gram-positive bacterium Listeria monocytogenes, a pathogen that modulates its intracellular survival via vacuolar escape and cytosolic replication. In the present study, we examined the ability of 58 Lmonocytogenes isolates recovered in Brazil (beef, clinical and environmental samples, from 1978 to 2013) to invade, replicate and spread in a human intestinal epithelial cell line (Caco-2).

      • Bacterial pathogens
      • Listeria monocytogenes
  21. Influence of Different Stainless-Steel Finishes on Biofilm Formation by Listeria monocytogenes

    • Wed, 08/31/2022 - 04:00
    • Biofilm formation of L. monocytogenes on stainless steel, a widely used abiotic surface in the food processing industry was investigated, focusing on the attachment tendency and behavior of L. monocytogenes 08-5578 on eight different Stainless-steel surfaces: glass bead blasted (rough and fine), deburred (Timesaver), drum deburred, pickled, pickled and drum polished, electrolytic polished and cold rolled (untreated control).

      • Bacterial pathogens
      • Listeria monocytogenes
  22. Examining Patterns of Persistent Listeria Contamination in Packinghouses using Agent-Based Models

    • Wed, 08/31/2022 - 04:00
    • Persistent Listeria monocytogenes contamination may occur in a packinghouse if the pathogen successfully infiltrates the facility and reaches a harborage site, from where it is difficult to remove and may contaminate produce within the facility. There is a need for simulation-based decision support tools that can predict which equipment sites are more likely to undergo persistent contamination and simulate potential corrective actions to prevent persistent contamination.

      • Bacterial pathogens
      • Listeria monocytogenes
  23. Melissa officinalis essential oil as an antimicrobial agent against Listeria monocytogenes in watermelon juice

    • Wed, 08/31/2022 - 04:00
    • Food Microbiology
    • The burden of foodborne illness has a negative effect on public health, but also in countries' economy. Melissa officinalis is an aromatic plant known for its biological properties, including antioxidant and antimicrobial effects. This work highlighted M. officinalis essential oil's antioxidant potential and antimicrobial activity against L.

      • Bacterial pathogens
      • Listeria monocytogenes
  24. Aptamer and Ru(bpy)32+‐AuNPs‐based electrochemiluminescence biosensor for accurate detecting Listeria monocytogenes

    • Mon, 08/29/2022 - 04:00
    • Journal of Food Safety
    • Journal of Food Safety, EarlyView. As a widespread foodborne pathogen, Listeria monocytogenes (LM) can potentially cause a large number of food safety incidents, and the mortality rate of humans infected with this pathogen is relatively high. Thus, establishment of a fast and simple inspection technology is imperative.

      • Bacterial pathogens
      • Listeria monocytogenes
  25. Removal of Listeria monocytogenes biofilms on stainless steel surfaces through conventional and alternative cleaning solutions

    • Sat, 08/27/2022 - 04:00
    • International Journal of Food Microbiology
    • Conventional treatments are not effective enough to completely remove Listeria monocytogenes biofilms from surfaces, thus implying the presence of certain persistent bacterial forms. In this study, eleven treatments (i.e. two enzymatic agents applied at two different temperatures and concentrations, two alkaline cleaners and one acid detergent) were used to remove mature L. monocytogenes S2-bac biofilms.

      • Bacterial pathogens
      • Listeria monocytogenes