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Food Safety Publications

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 151 - 175 of 38022

  1. Coccomyxa sp.KJ extract affects the fate of T cells stimulated by toxic shock syndrome toxin‐1, a superantigen secreted by Staphylococcus aureus

    • Fri, 05/13/2022 - 04:00
    • Microbiology and Immunology
    • T cell stimulation by bacterial superantigens induces a cytokine storm. After T cell activation and inflammatory cytokine secretion, regulatory T cells (Treg) are produced to suppress the immune response. Coccomyxa sp.KJ (IPOD FERM BP-22254), a green alga, is reported to regulate immune reactions. Therefore, we examined the effects of Coccomyxa sp.KJ extract (CE) on the superantigen-induced immune response.

      • Bacterial pathogens
      • Staphylococcus aureus
  2. Case numbers of acute hepatitis of unknown aetiology among children in 24 countries up to 18 April 2022 compared to the previous 5 years

    • Fri, 05/13/2022 - 04:00
    • Eurosurveillance
    • An increase of acute hepatitis of unknown aetiology has been reported among children in multiple countries worldwide. With a rapid online survey among hospitals in and outside of Europe, we describe case numbers recorded from 1 January to 18 April 2022 vs the previous 5 years.

      • Viruses
      • Hepatitis
  3. Diversity, Antimicrobial Activity, and Antibiotic Susceptibility Pattern of Endophytic Bacteria Sourced From Cordia dichotoma L

    • Fri, 05/13/2022 - 04:00
    • Frontiers in Microbiology
    • Endophytic bacteria isolated from medicinal plants are crucial for the production of antimicrobial agents since they are capable of possessing bioactive compounds with diverse structures and activities. Cordia dichotoma, a plant of medicinal importance native to the Jammu region of India, was selected for the isolation and characterization of culturable endophytic bacteria and evaluation of their antimicrobial activities.

      • Bacterial pathogens
      • Staphylococcus aureus
  4. Antimicrobial Susceptibility, and Molecular Characterization of Staphylococcus aureus Isolated From Different Raw Milk Samples in China

    • Fri, 05/13/2022 - 04:00
    • Frontiers in Microbiology
    • Staphylococcus aureus (S. aureus) is one of the main pathogens in different raw milk and dairy products, which may lead to economic losses. Staphylococcus aureus is a significant and costly public health concern because it may enter the human food chain and contaminate milk causing foodborne illness. This study aimed to investigate the prevalence, antimicrobial susceptibility and virulence genes of S. aureus in raw milks.

      • Bacterial pathogens
      • Staphylococcus aureus
  5. In Vitro Activity of MRX-8 and Comparators Against Clinical Isolated Gram-Negative Bacilli in China

    • Fri, 05/13/2022 - 04:00
    • Frontiers in Cellular and Infection Microbiology
    • To evaluate in vitro antibacterial activity of MRX-8 against gram-negative bacteria recently isolated from China, 765 clinical isolates were collected randomly from 2017 to 2020, including Enterobacterales and P. aeruginosa and A. baumannii, S. maltophilia, B. cepacia, Alcaligenes app. and Haemophilus spp. isolates. All strains were performed with antimicrobial susceptibility testing by broth microdilution method according to the CLSI 2021.

      • Bacterial pathogens
      • Shigella
  6. Antimicrobial Potential of Conjugated Lignin/Morin/Chitosan Combinations as a Function of System Complexity

    • Fri, 05/13/2022 - 04:00
    • Antibiotics
    • As natural biopolymers, chitosan and lignin are characterized by their good biocompatibility, high biodegradability and satisfactory biosafety. The active polymers’ functional groups are responsible for the potential of these biomaterials for use as carrier matrices in the construction of polymer–drug conjugates with prospective applicability in the fields of medicine, food and agriculture—subjects that have attracted attention in recent years.

      • Bacterial pathogens
      • Bacillus cereus
      • Staphylococcus aureus
  7. A novel co-processed olive tree leaves biomass for lead adsorption from contaminated water

    • Fri, 05/13/2022 - 04:00
    • Journal of Contaminant Hydrology
    • Olive farming is one of the key agricultural activities in Jordan, where nearly 70% of the cultivated land in Jordan is covered with olive trees. Olive harvesting generates massive quantities of agricultural waste which will be an environmental burden if not managed properly. The present study introduces the use of novel co-processed biomass extracted from the olive tree leaves for the adsorption of lead from contaminated water.

      • Chemical contaminants
      • Heavy Metals
  8. Prevalence and molecular characterization of Giardia duodenalis in small ruminants of Shiraz, southwestern Iran: A zoonotic concern

    • Fri, 05/13/2022 - 04:00
    • Comparative Immunology, Microbiology and Infectious Diseases
    • Livestock are commonly affected by gastrointestinal protozoan parasites, including Giardia duodenalis. In small ruminants, G. duodenalis infection may decrease carcass weight and dressing percentage. Current study was done to determine the prevalence, assemblage distribution, and zoonotic significance of Giardia infection in sheep and goats in Shiraz, southwestern Iran.

      • Parasites
      • Giardia lamblia
  9. The First Evidence of Zoonotic Hepatitis E Virus (HEV) Exposure in Domestic Cats in Türkiye

    • Fri, 05/13/2022 - 04:00
    • Comparative Immunology, Microbiology and Infectious Diseases
    • Hepatitis E virus (HEV) infection as a zoonotic disease virus has been thoroughly investigated in pigs around the world, but there have been few studies in pet animals. Although molecula and serological evidence suggests that numerous other animal species may act as HEV hosts in industrialized countries, domestic pigs and wild boars are the main reservoirs of HEV genotypes 3 and 4 for human infections.

      • Viruses
      • Hepatitis
  10. An all-in-one nucleic acid enrichment and isothermal amplification platform for rapid detection of Listeria monocytogenes

    • Fri, 05/13/2022 - 04:00
    • Food Control
    • Listeria monocytogenes is an infectious foodborne pathogen that greatly threatens the public health worldwide. A simple and sensitive detection of L. monocytogenes is extremely important in food safety industry. In this study, we developed an all-in-one platform, which consists of nucleic acid extraction, amplification and visual detection in a single tube.

      • Bacterial pathogens
      • Listeria monocytogenes
  11. Small GTPase RacA is critical for spore growth, patulin accumulation, and virulence of Penicillium expansum

    • Fri, 05/13/2022 - 04:00
    • Postharvest Biology and Technology
    • RacA is a signaling molecule of the small GTPase family that regulates fungal morphology and cellular function and activates NADPH oxidase (Nox) transmit signaling molecules. In this study, we performed subcellular localization analysis of RacA in P. expansum and by fusion expression of RacA with GFP, we found that RacA was mostly localized in the cytoplasm and organelle membranes.

      • Natural toxins
      • Mycotoxins
  12. Inhibition of Virulence Gene Expression in Salmonella Dublin, Escherichia coli F5 and Clostridium perfringens Associated With Neonatal Calf Diarrhea by Factors Produced by Lactic Acid Bacteria During Fermentation of Cow Milk

    • Thu, 05/12/2022 - 04:00
    • Frontiers in Microbiology
    • Diarrhea is a major health problem in neonatal and young calves worldwide. It can be caused by a variety of infectious agents, including the bacteria Salmonella enterica serovar Dublin (S. Dublin), enterotoxigenic Escherichia coli (ETEC), and Clostridium perfringens. Preventive alternatives to antibiotic treatment should be identified.

      • Bacterial pathogens
      • Clostridium perfringens
      • Salmonella
  13. Time Is of the Essence—Early Activation of the Mevalonate Pathway in Apple Challenged With Gray Mold Correlates With Reduced Susceptibility During Postharvest Storage

    • Thu, 05/12/2022 - 04:00
    • Frontiers in Microbiology
    • Apple is typically stored under low temperature and controlled atmospheric conditions to ensure a year round supply of high quality fruit for the consumer. During storage, losses in quality and quantity occur due to spoilage by postharvest pathogens. One important postharvest pathogen of apple is Botrytis cinerea. The fungus is a broad host necrotroph with a large arsenal of infection strategies able to infect over 1,400 different plant species. We studied the apple-B.

      • Produce Safety
      • Post Harvest
  14. Description of Staphylococcal Strains from Straw-Coloured Fruit Bat (Eidolon helvum) and Diamond Firetail (Stagonopleura guttata) and a Review of their Phylogenetic Relationships to Other Staphylococci

    • Thu, 05/12/2022 - 04:00
    • Frontiers in Cellular and Infection Microbiology
    • The phylogenetic tree of the Staphylococcus aureus complex consists of several distinct clades and the majority of human and veterinary S. aureus isolates form one large clade. In addition, two divergent clades have recently been described as separate species. One was named Staphylococcus argenteus, due to the lack of the “golden” pigment staphyloxanthin. The second one is S. schweitzeri, found in humans and animals from Central and West Africa.

      • Bacterial pathogens
      • Staphylococcus aureus
  15. Inhibition of Toxoplasma gondii Growth by Dihydroquinine and Its Mechanisms of Action

    • Thu, 05/12/2022 - 04:00
    • Frontiers in Cellular and Infection Microbiology
    • Toxoplasma gondii is a zoonotic parasite that infects the brain of humans and causes cerebral toxoplasmosis. The recommended drugs for the treatment or prophylaxis of toxoplasmosis are pyrimethamine (PY) and sulfadiazine (SZ), which have serious side effects. Other drugs available for toxoplasmosis are poorly tolerated.

      • Chemical contaminants
      • Heavy Metals
      • Parasites
      • Toxoplasma gondii
  16. Ampicillin Treatment of Intracellular Listeria monocytogenes Triggers Formation of Persistent, Drug-Resistant L-Form Cells

    • Thu, 05/12/2022 - 04:00
    • Frontiers in Cellular and Infection Microbiology
    • Listeria monocytogenes is an opportunistic intracellular pathogen causing an infection termed listeriosis. Despite the low incidence of listeriosis, the high mortality rate in individuals at risk makes this bacterium one of the most dangerous foodborne pathogens. Reports about a relapse of infection after antibiotic treatment suggest that the bacteria may be able to evade antibiotic treatment and persist as a dormant, antibiotic-tolerant subpopulation.

      • Bacterial pathogens
      • Listeria monocytogenes
  17. The effect of crisping, misting, and storage temperature on the survival or growth of Listeria monocytogenes and natural psychrotrophic bacteria on romaine lettuce

    • Thu, 05/12/2022 - 04:00
    • Food Science and Technology International
    • L. monocytogenes has been linked to fresh produce and detected in the retail environment. This study simulated the retail practices (crisping, misting, and storage) of unbagged whole heads of romaine lettuce to determine the growth of L. monocytogenes and natural psychrotrophic microflora. Three nalidixic acid-resistant strains of L. monocytogenes strains were inoculated to each head of lettuce (≈5 log10 CFU/g).

      • Bacterial pathogens
      • Listeria monocytogenes
  18. Hepatitis C prevalence and key population size estimate updates in San Francisco: 2015 to 2019

    • Thu, 05/12/2022 - 04:00
    • PLOS ONE
    • by Shelley N. Facente, Rachel Grinstein, Roberta Bruhn, Zhanna Kaidarova, Erin Wilson, Jennifer Hecht, Katie Burk, Eduard Grebe, Meghan D. Morris Background In 2017, San Francisco’s initiative to locally eliminate hepatitis C virus (HCV) as a public health threat, End Hep C SF, generated an estimate of city-wide HCV prevalence in 2015, but only incorporated limited information about population HCV treatment.

      • Viruses
      • Hepatitis
  19. Knowledge and attitudes of Implementation Support Practitioners—Findings from a systematic integrative review

    • Thu, 05/12/2022 - 04:00
    • PLOS ONE
    • by Leah Bührmann, Pia Driessen, Allison Metz, Katie Burke, Leah Bartley, Cecilie Varsi, Bianca Albers Background It requires thoughtful planning and work to successfully apply and sustain research-supported interventions like healthcare treatments, social support, or preventive programs in practice.

      • Chemical contaminants
      • Heavy Metals
  20. The arachidonic acid and its metabolism pathway play important roles for Apostichopus japonicus infected by Vibrio splendens

    • Thu, 05/12/2022 - 04:00
    • Fish & Shellfish Immunology
    • Improving the immune ability and guiding healthy culture for sea cucumber by purposefully screening the significant differential metabolites when Apostichopus japonicus (A. japonicus) is infected by pathogens is important. In this study, 35 types of significant differential metabolites appeared when A.

      • Bacterial pathogens
      • Vibrio
  21. Development and validation of high-resolution melting assays for the detection of potentially virulent strains of Escherichia coli O103 and O121

    • Thu, 05/12/2022 - 04:00
    • Food Control
    • Virulent strains of Shiga toxin-producing Escherichia coli (STEC) serogroups O103 and O121 are considered adulterants in beef. Two high-resolution melting (HRM) real-time PCR assays were standardized for the specific detection and discrimination of potentially virulent and avirulent strains of E. coli O103 and O121. The O103 HRM assay offered the possibility to distinguish clearly STEC O103:H2 from STEC O103:H25.

      • Bacterial pathogens
      • Enterohemorrhagic Escherichia coli
  22. Validation of a random Vibrio parahaemolyticus genomic library by selection of quinolone resistance in a heterologous host

    • Wed, 05/11/2022 - 04:00
    • Microbiology
    • is a shellfish-borne pathogen that is a highly prevalent causative agent of inflammatory gastroenteritis in humans. Genomic libraries have proven useful for the identification of novel gene functions in many bacterial species.

      • Bacterial pathogens
      • Vibrio
  23. Genome-Wide Identification and Transcript Analysis Reveal Potential Roles of Oligopeptide Transporter Genes in Iron Deficiency Induced Cadmium Accumulation in Peanut

    • Wed, 05/11/2022 - 04:00
    • Frontiers in Plant Science
    • The oligopeptide transporter (OPT) family is a group of proton-coupled symporters that play diverse roles, including metal homeostasis. However, little is known about this family of peanuts.

      • Chemical contaminants
      • Heavy Metals
  24. Metagenome Sequencing Reveals the Microbiome of Aedes albopictus and Its Possible Relationship With Dengue Virus Susceptibility

    • Wed, 05/11/2022 - 04:00
    • Frontiers in Microbiology
    • Dengue fever virus (DENV) is a mosquito-borne flavivirus that poses a serious risk to human health. Aedes albopictus is a widely distributed vector of dengue fever in China. Based on the impact of physiological activity, the microbiome in A. albopictus will provide a novel environment-friendly approach to control DENV transmission. We performed metagenomic sequencing on A. albopictus before and after exposure to DENV blood meal to detect microbiome variation of A.

      • Bacterial pathogens
      • Shigella
  25. Phenol-Soluble Modulins From Staphylococcus aureus Biofilms Form Complexes With DNA to Drive Autoimmunity

    • Wed, 05/11/2022 - 04:00
    • Frontiers in Cellular and Infection Microbiology
    • The bacterial amyloid curli, produced by Enterobacteriales including Salmonella species and Escherichia coli, is implicated in the pathogenesis of several complex autoimmune diseases. Curli binds to extracellular DNA, and these complexes drive autoimmunity via production of anti-double-stranded DNA autoantibodies. Here, we investigated immune activation by phenol-soluble modulins (PSMs), the amyloid proteins expressed by Staphylococcus species.

      • Bacterial pathogens
      • Salmonella
      • Staphylococcus aureus