An official website of the United States government.

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

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 184

  1. Spatial Comparison of Persistent Organic Pollutants in the Boardman River Following Impoundment Removal and Channel Restoration

    • Sat, 09/17/2022 - 04:00
    • Bulletin of Environmental Contamination and Toxicology
    • Semi-permeable membrane devices (SPMDs) were used to quantify dissolved concentrations of persistent organic pollutants (POPs) along a 40-km reach of the Boardman River in Traverse City, Michigan that has recently undergone dam and impoundment pond sediment removal.

      • Chemical contaminants
      • Dioxins
  2. Decontamination process for dioxins and dioxin‐like PCBs from fish oil and vegetable oils and fats by a physical process with activated carbon

    • Sat, 09/17/2022 - 04:00
    • EFSA Journal
    • EFSA Journal, Volume 20, Issue 9, September 2022. Following a request from the European Commission, the EFSA Panel on Contaminants in the Food Chain (CONTAM) assessed a decontamination process of fish oils and vegetable oils and fats to reduce the concentrations of dioxins (polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans, abbreviated together as PCDD/Fs) and dioxin-like polychlorinated biphenyls (DL-PCBs) by adsorption to activated carbon.

      • Chemical contaminants
      • Dioxins
  3. Lactobacillus rhamnosus GG normalizes gut dysmotility induced by environmental pollutants via affecting serotonin level in zebrafish larvae

    • Wed, 09/14/2022 - 04:00
    • World Journal of Microbiology and Biotechnology
    • Intestinal peristalsis is essential for gastrointestinal function, which could maintain the appropriate progression and digestion of food and reduce bacterial aggregation through mixing function. Even though certain ingredients of foodstuff are known to increase or decrease intestinal peristalsis, the role of environmental pollutants on intestinal peristalsis is relatively unknown.

      • Chemical contaminants
      • Dioxins
      • Heavy Metals
  4. Identification of a novel aminoglycoside O-nucleotidyltransferase AadA33 in Providencia vermicola

    • Tue, 09/13/2022 - 04:00
    • Frontiers in Microbiology
    • A novel chromosome-encoded aminoglycoside O-nucleotidyltransferase AadA33 was identified in Providencia vermicola strain P13. The AadA33 shares the highest amino acid identity of 51.28% with the function characterized AadA31. Antibiotic susceptibility testing and enzyme kinetics analysis revealed that the function of AadA33 is to mediate spectinomycin and streptomycin resistance.

      • Chemical contaminants
      • Dioxins
  5. Spectinomycin resistance in Lysobacter enzymogenes is due to its rRNA target but also relies on cell-wall recycling and purine biosynthesis

    • Wed, 08/31/2022 - 04:00
    • Frontiers in Microbiology
    • Resistance to spectinomycin emerged after widely used for treatment of gonorrhea. Previous studies revealed that Lysobacter enzymogenes strain C3 (LeC3) exhibited elevated level of intrinsic resistance to spectinomycin. In this study, we screened a Tn5 transposon mutant library of LeC3 to elucidate the underlying molecular mechanisms of spectinomycin resistance.

      • Chemical contaminants
      • Dioxins
  6. Biochemical and genetic characterization comparison of four extradiol dioxygenases in Rhizorhabdus wittichii RW1

    • Sat, 08/27/2022 - 04:00
    • Applied Microbiology and Biotechnology
    • Rhizorhabdus (previously Sphingomonas) wittichii RW1 uses a diverse array of aromatic organic compounds as energy and carbon sources, including some extremely recalcitrant compounds such as dibenzo-p-dioxin and dibenzofuran. Extradiol dioxygenases play a key role in the metabolism of dibenzofuran (DBF), dibenzo-p-dioxin (DBD), PCBs, and various other aromatic compounds.

      • Chemical contaminants
      • Dioxins
  7. Rapid and simultaneous extraction of phthalates, polychlorinated biphenyls and polycyclic aromatic hydrocarbons from edible oil for GC–MS determination

    • Sun, 08/14/2022 - 04:00
    • Journal of Food Composition and Analysis
    • A QuEChERS (Quick, Easy, Cheap, Effective, Rugged, Safe) method, for reliable semi-quantitative screening of 27 organic contaminants including phthalates (PAEs), polychlorinated biphenyls (PCBs) and polycyclic aromatic hydrocarbons (PAHs) by gas chromatography-mass spectrometry (GC-MS) in edible oil, was developed.

      • Chemical contaminants
      • Dioxins
  8. Correlating biodegradation kinetics of 2,3,7,8-tetrachlorodibenzo-p-dioxin to the dynamics of microbial communities originating from soil in Vietnam contaminated with herbicides and dioxins

    • Thu, 08/11/2022 - 04:00
    • Frontiers in Microbiology
    • We studied the succession of bacterial communities during the biodegradation of 2,3,7,8-tetrachlorodibenzo-p-dioxin (2,3,7,8-TCDD). The communities originated from a mesocosm with soil from Bien Hoa airbase in Vietnam heavily contaminated with herbicides and dioxins. They were grown in defined media with different carbon and Gibbs energy sources and 2,3,7,8-TCDD.

      • Chemical contaminants
      • Dioxins
  9. Analysis and discussion on formation and control of dioxins generated from municipal solid waste incineration process

    • Sun, 08/07/2022 - 04:00
    • Journal of the Air & Waste Management Association
    • Dioxins are a kind of persistent organic pollutants (POPs) with extremely toxic. Municipal solid waste incineration (MSWI) process has become one of the most dominant discharge sources of dioxins. A comprehensive discussion about dioxin formation mechanisms was reviewed in this paper, and the mechanisms of high-temperature gas-phase reaction and “de novo” synthesis were systematically illustrated in the form of diagrams.

      • Chemical contaminants
      • Dioxins
  10. Stochastic model for simulating levels of polychlorinated biphenyls in small tuna and planktons using Metropolis – Hastings algorithm

    • Wed, 08/03/2022 - 04:00
    • Ecotoxicology and Environmental Safety
    • This paper proposes a stochastic model to simulate the occurrence and levels of polychlorinated biphenyls (PCBs) in juvenile tuna. This model can calculate the transport of PCBs in the ocean (macroscopic phenomena) and biomagnification in fish (microscopic phenomena).

      • Chemical contaminants
      • Dioxins
  11. Degradability of commercial mixtures of polychlorobiphenyls by three Rhodococcus strains

    • Mon, 08/01/2022 - 04:00
    • Archives of Microbiology
    • Biodegradative characteristics were investigated for the commercially available mixtures of polychlorinated biphenyls (PCBs) Trikhlorbifenil and Sovol degraded by the Rhodococcus wratislaviensis КT112-7, Rhodococcus wratislaviensis CH628 and Rhodococcus ruber P25 strains isolated from the natural habitats.

      • Chemical contaminants
      • Dioxins
  12. Presence and risks of polycyclic aromatic hydrocarbons, dioxins and dioxin-like PCBs in dietary plant supplements as elucidated by a combined DR CALUX® bioassay and GC-HRMS based approach

    • Sun, 07/31/2022 - 04:00
    • Food Additives & Contaminants: Part A
    • Plant-based dietary supplements may contain undesirable contaminants such as polycyclic aromatic hydrocarbons, dioxins and dioxin-like polychlorinated biphenyls (dl-PCBs) due to the sources of raw materials or processing methods used. The presence of these contaminants in a series of herbal supplements sold on the Ghanaian market for improving sexual performance was examined using the DR CALUX® bioassay in combination with GC-HRMS analysis.

      • Chemical contaminants
      • Dioxins
  13. Whole-genome sequence analysis of high-level penicillin-resistant strains and antimicrobial susceptibility of Neisseria gonorrhoeae clinical isolates from Thailand

    • Sat, 07/30/2022 - 04:00
    • PLOS ONE
    • by Natakorn Nokchan, Thidathip Wongsurawat, Piroon Jenjaroenpun, Perapon Nitayanon, Chanwit Tribuddharat Background The increasing rate of antimicrobial-resistant Neisseria gonorrhoeae poses a considerable public health threat due to the difficulty in treating gonococcal infections.

      • Chemical contaminants
      • Dioxins
  14. Human Biomonitoring of Polychlorinated Biphenyls (PCBs) in the Breast Milk of Colombian Mothers

    • Sun, 07/24/2022 - 04:00
    • Bulletin of Environmental Contamination and Toxicology
    • Polychlorinated biphenyls (PCBs) are persistent in the environment, bioaccumulate and biomagnify throughout the food chain, and may have adverse effects on human health and wildlife. PCB indicator (PCB 28, PCB 52, PCB 101, PCB 118, PCB 138, PCB 153, and PCB 180) were monitored in human milk using 68 samples from healthy and primiparous mothers from seven cities in Colombia, and the estimated daily intake (EDI) of infants was calculated.

      • Chemical contaminants
      • Dioxins
  15. A simple and reliable method for separation of mineral oil/polychlorobiphenyl mixtures

    • Sun, 07/24/2022 - 04:00
    • Waste Management & Research
    • Polychlorinated biphenyls (PCBs) were broadly applied worldwide as electrical insulators in transformers and power capacitors, due to their high dielectric constant and non-flammability. They were often added to mineral oils (MOs) and used as dielectric fluids, which are nowadays classified as hazardous waste. Indeed, the Stockholm Convention aims to eliminate the use of equipment with PCB content greater than 0.005 wt-% (=50 ppm) by 2025.

      • Chemical contaminants
      • Dioxins
  16. Biphenyl-degrading Bacteria Isolation with Laser Induced Visualized Ejection Separation Technology and Traditional Colony Sorting

    • Sun, 07/17/2022 - 04:00
    • Bulletin of Environmental Contamination and Toxicology
    • In this work, biphenyl was used as carbon source to enrich microorganisms from polychlorinated biphenyls (PCBs)-contaminated paddy soil samples, and the taxonomic structures in both of the soil samples and the fourth-generation enrichments were examined with high-throughput sequencing.

      • Chemical contaminants
      • Dioxins
  17. Magnetic solid phase extraction and determination of polychlorinated biphenyls in beverages utilizing C60 modified magnetic polyamido-amine dendrimers in combination with gas chromatography-tandem mass spectrometry

    • Sat, 07/16/2022 - 04:00
    • Food Chemistry
    • Polychlorinated biphenyls (PCBs) are persistent organic pollutants which are widely present in environment and harmful to human health. In this study, an efficient and convenient magnetic solid phase extraction method with C60 modified magnetic polyamido-amine (PAMAM) dendrimers as sorbents was established for enriching trace amounts of PCBs in beverage samples. Gas chromatography-tandem mass spectrometry (GC–MS/MS) was utilized for analysis of PCBs.

      • Chemical contaminants
      • Dioxins
  18. Concentration and probabilistic health risk of polychlorinated biphenyls in cheese samples collected from Tehran, Iran

    • Thu, 07/07/2022 - 04:00
    • International Journal of Dairy Technology
    • International Journal of Dairy Technology, EarlyView. This study focused on the measurement of non-dioxin-like polychlorinated biphenyls (NDL-PCBs) in cheese samples (traditional and commercial cheese) by a modified QuEChERS (quick, easy, cheap, effective, rugged and safe) method by gas chromatography (GC) coupled with triple-quadrupole (QqQ) tandem mass spectrometry (MS/MS).

      • Chemical contaminants
      • Dioxins
  19. Exposure to 3,3′,4,4′,5-Pentachlorobiphenyl (PCB126) Causes Widespread DNA Hypomethylation in Adult Zebrafish Testis

    • Wed, 06/29/2022 - 04:00
    • Toxicological Sciences
    • Exposure to environmental toxicants during preconception has been shown to affect offspring health and epigenetic mechanisms such as DNA methylation are hypothesized to be involved in adverse outcomes. However, studies addressing the effects of exposure to environmental toxicants during preconception on epigenetic changes in gametes are limited.

      • Chemical contaminants
      • Dioxins
  20. Draft Genome Sequence of Serratia marcescens SSA1, Isolated from Dioxin-Polluted Soil

    • Wed, 06/29/2022 - 04:00
    • Microbiology Resource Announcements
    • Microbiology Resource Announcements, Ahead of Print. Serratia marcescens SSA1 was isolated from a dump site with a history of incineration. Its DNA of 5.05 Mbp has a GC content of 59.65%, with 77 tRNA genes and 3 rRNA genes. Its 4,909 putative PATRIC protein-coding genes include genes responsible for the degradation of dioxins and other xenobiotics and total consumption of benzoate.

      • Chemical contaminants
      • Dioxins
  21. Genomic and Evolutionary Analysis of Salmonella enterica Serovar Kentucky Sequence Type 198 Isolated From Livestock In East Africa

    • Mon, 06/20/2022 - 04:00
    • Frontiers in Cellular and Infection Microbiology
    • Since its emergence in the beginning of the 90’s, multidrug-resistant (MDR) Salmonella enterica subsp. enterica serovar Kentucky has become a significant public health problem, especially in East Africa. This study aimed to investigate the antimicrobial resistance profile and the genotypic relatedness of Salmonella Kentucky isolated from animal sources in Ethiopia and Kenya (n=19).

      • Bacterial pathogens
      • Salmonella
      • Chemical contaminants
      • Dioxins
  22. The amendment of Organic matters enhances the anaerobic dechlorination of Polychlorinated Biphenyls in Paddy Soil

    • Sun, 06/12/2022 - 04:00
    • Bulletin of Environmental Contamination and Toxicology
    • The toxicity of high-chlorinated polychlorinated biphenyls (PCBs) can be efficiently reduced through anaerobic dechlorination. However, this approach suffers a lot in face of in situ microbial remediations, like a shortage of biomass. In this study, we showed that the amendment of organic matters could help microbiota in paddy soil with anaerobic dechlorination and greatly shortened the lag period.

      • Chemical contaminants
      • Dioxins
  23. Hepatic Burdens of PCB and PCDD/F Congeners in Federally Endangered Shortnose Sturgeon and Atlantic Sturgeon from the Hudson River, New York, USA: Burden Patterns and Potential Consequences in Offspring

    • Sat, 06/04/2022 - 04:00
    • Archives of Environmental Contamination and Toxicology
    • Sturgeon populations worldwide are threatened with extirpation but little is known about their tendency to bioaccumulate contaminants and their sensitivities to environmental burdens of these contaminants.

      • Chemical contaminants
      • Dioxins
  24. The Ahr2-Dependent wfikkn1 Gene Influences Zebrafish Transcriptome, Proteome, and Behavior

    • Sat, 05/28/2022 - 04:00
    • Toxicological Sciences
    • The aryl hydrocarbon receptor (AHR) is required for vertebrate development and is also activated by exogenous chemicals, including polycyclic aromatic hydrocarbons (PAHs) and 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD). AHR activation is well-understood, but roles of downstream molecular signaling events are largely unknown.

      • Chemical contaminants
      • Dioxins
  25. Spectinomycin, gentamicin, and routine disc diffusion testing: An alternative for the treatment and monitoring of multidrug-resistant Neisseria gonorrhoeae?

    • Sat, 05/07/2022 - 04:00
    • Journal of Microbiological Methods
    • Introduction

      Neisseria gonorrhoeae is a major concern of public health due to its extraordinary capacity to develop and acquire resistance to different antimicrobials used to treat gonorrhoea. Limited treatment options and uncontrolled transmission have raised the need to assess the antimicrobial susceptibility profile of the isolates and to establish affordable alternatives for laboratory diagnosis.

      Objectives

      • Chemical contaminants
      • Dioxins