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  3. Research Publications (Food Safety)

Research Publications (Food Safety)

This page tracks research articles published in national and international peer-reviewed journals. Recent articles are available ahead of print and searchable by Journal, Article Title, and Category. 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 (requires login) and FDA Grant Funding Agencies (requires login) are also tracked in Scopus.

Displaying 276 - 300 of 585

  1. Critical points affecting the microbiological safety of bell peppers washed with peroxyacetic acid in a commercial packinghouse

    • Food Microbiology

    • Author(s): Francisco López-Gálvez, Pilar Truchado, Juan A. Tudela, Maria I. Gil, Ana Allende

      • Salmonella
      • Bacterial pathogens

  2. Origin and Evolution of Hybrid Shiga Toxin-Producing and Uropathogenic Escherichia coli Strains of Sequence Type 141

    • Journal of Clinical Microbiology

    • Hybrid Shiga toxin-producing Escherichia coli (STEC) and uropathogenic E. coli (UPEC) strains of multilocus sequence type 141 (ST141) cause both urinary tract infections and diarrhea in humans and are phylogenetically positioned between STEC and UPEC strains. We used comparative genomic analysis of 85 temporally and spatially diverse ST141 E. coli strains, including 14 STEC/UPEC hybrids, collected in Germany (n = 13) and the United States (n = 1) to reconstruct their molecular evolution.

      • Bacterial pathogens

  3. Comparable stx2a expression and phage production levels between Shiga toxin‐producing Escherichia coli strains from human and bovine origin

    • Zoonoses and Public Health

    • Shiga toxin‐producing Escherichia coli (STEC) can cause diarrhoea and severe diseases in humans, such as haemolytic uraemic syndrome. STEC virulence is considered to correlate with the amount of Shiga toxins (Stx) produced, especially Stx2, whose subtype Stx2a is most frequently associated with high virulence. Stx are encoded in prophages, which play an important role in STEC pathogenesis.

      • Enterohemorrhagic Escherichia coli
      • Bacterial pathogens

  4. Evaluation of Bactericidal Effects of Phenyllactic Acid on Escherichia coli O157:H7 and Salmonella Typhimurium on Beef Meat

    • Journal of Food Protection

    • Bactericidal effects of various concentrations of phenyllactic acid on Shiga toxin–producing Escherichia coli (STEC), including E. coli O157:H7, O26:H11, O103:H2, and O121:H19, and on Salmonella Typhimurium DT104 in pure culture and microplates assays were studied. Beef cuts were surface sprayed with phenyllactic acid or lactic acid for inactivation of E. coli O157:H7 and Salmonella Typhimurium. The 1.5% phenyllactic acid inactivated all inoculated E.

      • Escherichia coli O157:H7
      • Salmonella
      • Bacterial pathogens

  5. Microarray-based detection of resistance and virulence factors in commensal Escherichia coli from livestock and farmers in Egypt

    • Veterinary Microbiology

    • Author(s): Mayada Gwida, Amal Awad, Maged El-Ashker, Helmut Hotzel, Stefan Monecke, Ralf Ehricht, Elke Müller, Annett Reißig, Stefanie A. Barth, Christian Berens, Sascha D. Braun

      Abstract

      The objective of our study was to provide a molecular analysis using DNA-microarray based assays of commensal E. coli populations from apparently healthy livestock and their attendants to assess the virulence potential as well as multidrug resistance (MDR) genotypes.

      • Bacterial pathogens

  6. Assessing the microbiological quality of raw goats’ and ewes’ tank milk samples in Switzerland

    • International Dairy Journal

    • Author(s): Brian Friker, Marina Morach, Sabrina Püntener, Nicole Cernela, Jule Horlbog, Roger Stephan

      Abstract

      In recent years, popularity of raw milk has increased in many industrialised countries.

      • Bacterial pathogens
      • Salmonella
      • Staphylococcus aureus

  7. Efficacy of bacteriophage and organic acids in decreasing STEC O157:H7 populations in beef kept under vacuum and aerobic conditions: A simulated High Event Period scenario

    • Meat Science

    • Author(s): E.L. Shebs, M.J. Lukov, F.M. Giotto, E.S. Torres, A.S. de Mello

      • Bacterial pathogens

  8. Endocytosis, Cytotoxicity, and Translocation of Shiga Toxin-2 Are Stimulated by Infection of Human Intestinal (HCT-8) Monolayers With an Hypervirulent E. coli O157:H7 Lacking stx2 Gene

    • Frontiers in Cellular and Infection Microbiology

    • Shiga toxin-producing Escherichia coli (STEC) strains are responsible for multiple clinical syndromes, including hemolytic uremic syndrome (HUS). E. coli O157:H7 is the most prevalent serotype associated with HUS and produces a variety of virulence factors being Stx2 the responsible of the most HUS severe cases.

      • Escherichia coli O157:H7
      • Bacterial pathogens

  9. Genomic analysis of Shiga toxin-producing Escherichia coli from patients and asymptomatic food handlers in Japan

    • PLOS ONE

    • by Hiroaki Baba, Hajime Kanamori, Hayami Kudo, Yasutoshi Kuroki, Seiya Higashi, Kentaro Oka, Motomichi Takahashi, Makiko Yoshida, Kengo Oshima, Tetsuji Aoyagi, Koichi Tokuda, Mitsuo Kaku

      • Enterohemorrhagic Escherichia coli
      • Bacterial pathogens

  10. Shiga toxin-producing Escherichia coli survives storage in wheat flour for two years

    • Food Microbiology

    • Author(s): Alexander Gill, Tanis McMahon, Forest Dussault, Nicholas Petronella

      • Enterohemorrhagic Escherichia coli
      • Bacterial pathogens

  11. Escherichia coli strains producing a novel Shiga toxin 2 subtype circulate in China

    • International Journal of Medical Microbiology

    • Author(s): Xi Yang, Xiangning Bai, Ji Zhang, Hui Sun, Shanshan Fu, Ruyue Fan, Xiaohua He, Flemming Scheutz, Andreas Matussek, Yanwen Xiong

      • Bacterial pathogens

  12. Occurrence of Campylobacter spp., Salmonella spp. and shiga toxin‐producing Escherichia coli in inline milk filters from Swedish dairy farms

    • Journal of Food Safety

    • This study investigated the occurrence of shiga toxin‐producing Escherichia coli (STEC), thermotolerant Campylobacter spp. and Salmonella spp. in Swedish dairy milk. A total of 302 inline milk filters were analyzed. Salmonella was not isolated from any filters. Polymerase chain reaction screening detected thermotolerant Campylobacter in 30.5% of the milk filters analyzed and it was isolated from 12.6% of filters.

      • Bacterial pathogens
      • Campylobacter
      • Salmonella
      • Enterohemorrhagic Escherichia coli

  13. Application of chlorine dioxide and peroxyacetic acid during spray chilling as a potential antimicrobial intervention for beef carcasses

    • Food Microbiology

    • Author(s): Chawalit Kocharunchitt, Lyndal Mellefont, John P. Bowman, Tom Ross

      • Salmonella
      • Bacterial pathogens

  14. Shiga toxin-producing Escherichia coli (STEC) shedding in a wild roe deer population

    • Veterinary Microbiology

    • Author(s): E. Frank, R. Bonke, N. Drees, M. Heurich, E. Märtlbauer, M. Gareis

      • Bacterial pathogens
      • Enterohemorrhagic Escherichia coli

  15. Shiga toxin‐producing Escherichia coli (STEC) in the animal reservoir and food in Brazil

    • Journal of Applied Microbiology

    • Shiga toxin‐producing Escherichia coli (STEC) is a zoonotic pathotype associated with human gastrointestinal disease that may progress to severe complications. Ruminants, especially cattle, are the main reservoirs of STEC from which they can contaminate the environment and foods of animal or vegetable origin. Besides Shiga toxin, other virulence factors are involved in STEC virulence. O157:H7 remains the most frequent serotype associated with disease.

      • Enterohemorrhagic Escherichia coli
      • Bacterial pathogens

  16. Shiga toxin-producing Escherichia coli isolates from red deer (Cervus elaphus), roe deer (Capreolus capreolus) and fallow deer (Dama dama) in Poland

    • Food Microbiology

    • Author(s): Anna Szczerba-Turek, Jan Siemionek, Piotr Socha, Agata Bancerz-Kisiel, Aleksandra Platt-Samoraj, Karolina Lipczynska-Ilczuk, Wojciech Szweda

      • Enterohemorrhagic Escherichia coli
      • Bacterial pathogens
      • Escherichia coli O157:H7

  17. Reduction in pathogenic load of wheat by tempering with saline organic acid solutions at different seasonal temperatures

    • International Journal of Food Microbiology

    • Author(s): Luis Sabillón, Jayne Stratton, Devin Rose, Andréia Bianchini

      • Bacterial pathogens
      • Salmonella

  18. Epidemiology of Shiga Toxin-Producing Escherichia coli O157 in the Province of Alberta, Canada, 2009–2016

    • Toxins

    • Shiga toxin-producing Escherichia coli (STEC) infections are the product of the interaction between bacteria, phages, animals, humans, and the environment. In the late 1980s, Alberta had one of the highest incidences of STEC infections in North America. Herein, we revisit and contextualize the epidemiology of STEC O157 human infections in Alberta for the period 2009–2016.

      • Bacterial pathogens

  19. Eleven High-Quality Reference Genome Sequences and 360 Draft Assemblies of Shiga Toxin-Producing Escherichia coli Isolates from Human, Food, Animal, and Environmental Sources in Canada

    • Microbiology Resource Announcements

    • We report high-quality closed reference genomes for 1 bovine strain and 10 human Shiga toxin (Stx)-producing Escherichia coli (STEC) strains from serogroups O26, O45, O91, O103, O104, O111, O113, O121, O145, and O157. We also report draft assemblies, with standardized metadata, for 360 STEC strains isolated from watersheds, animals, farms, food, and human infections.

      • Bacterial pathogens
      • Enterohemorrhagic Escherichia coli

  20. Short communication: Molecular characterization and antimicrobial resistance of pathogenic Escherichia coli isolated from raw milk and Minas Frescal cheeses in Brazil

    • Journal of Dairy Science

    • The aim of this study was to quantify, identify, evaluate antimicrobial resistance, and characterize the virulence factors of enteropathogenic (EPEC), Shiga-toxigenic (STEC), and enterohemorrhagic (EHEC) Escherichia coli in raw milk (RM) and legal (LMFC) and illegal (IMFC) Minas Frescal cheeses in southern and northeast Brazil. Illegal cheeses are those made without official inspection service or sanitary surveillance.

      • Bacterial pathogens

  21. The efficacy of antimicrobial interventions on Shiga toxin producing Escherichia coli (STEC) surrogate populations inoculated on beef striploins prior to blade tenderization

    • LWT

    • Author(s): Chevise L. Thomas, Harshavardhan Thippareddi, Macc Rigdon, Sanjay Kumar, Robert W. McKee, William M. Sims, Alexander M. Stelzleni

      • Bacterial pathogens

  22. Microbial Safety of Dairy Manure Fertilizer Application in Raspberry Production

    • Frontiers in Microbiology

    • Dairy manure, a by-product in the dairy industry, is also a potential source of nutrients for crops. However, improper application of biological soil amendments of animal origin can be a source of contamination with enteric foodborne pathogens. A 2-year field study was conducted to evaluate impacts of dairy manure fertilizer application on the microbial safety of red raspberry (Rubus idaeus L) production.

      • Bacterial pathogens
      • Listeria monocytogenes
      • Salmonella

  23. Transcription of the Subtilase Cytotoxin Gene subAB1 in Shiga Toxin-Producing Escherichia coli Is Dependent on hfq and hns

    • Applied and Environmental Microbiology

    • Certain foodborne Shiga toxin-producing Escherichia coli (STEC) strains carry genes encoding the subtilase cytotoxin (SubAB). Although the mode of action of SubAB is under intensive investigation, information about the regulation of subAB gene expression is currently not available. In this study, we investigated the regulation of the chromosomal subAB1 gene in laboratory E. coli strain DH5α and STEC O113:H21 strain TS18/08 using a luciferase reporter gene assay.

      • Enterohemorrhagic Escherichia coli
      • Bacterial pathogens

  24. Characterization of a Lytic Bacteriophage as an Antimicrobial Agent for Biocontrol of Shiga Toxin-Producing Escherichia coli O145 Strains

    • Antibiotics

    • Shiga toxin-producing Escherichia coli (STEC) O145 is one of the most prevalent non-O157 serogroups associated with foodborne outbreaks. Lytic phages are a potential alternative to antibiotics in combatting bacterial pathogens. In this study, we characterized a Siphoviridae phage lytic against STEC O145 strains as a novel antimicrobial agent. Escherichia phage vB_EcoS-Ro145clw (Ro145clw) was isolated and purified prior to physiological and genomic characterization.

      • Enterohemorrhagic Escherichia coli
      • Bacterial pathogens

  25. The efficacy of individual and combined commercial protective cultures against Listeria monocytogenes, salmonella, O157 and non-O157 shiga toxin-producing Escherichia coli in growth medium and raw milk

    • Food Control

    • Author(s): Sulaiman F. Aljasir, Catherine Gensler, Lang Sun, Dennis J. D'Amico

      • Bacterial pathogens
      • Listeria monocytogenes
      • Salmonella