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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 1 - 25 of 477

  1. Silver nanoparticles reduce the tolerance of Cronobacter sakazakii to environmental stress by inhibiting expression of related genes

    • Wed, 07/13/2022 - 08:00
    • Journal of Dairy Science
    • Cronobacter sakazakii is a food-borne pathogen that is resistant to a variety of environmental stress conditions. It can survive in harsh environments. We studied the effects of silver nanoparticles (AgNP) on the environmental tolerance and biofilm formation of C. sakazakii. First, we determined the minimum inhibitory concentration (MIC) of AgNP to C.

      • Bacterial pathogens
      • Cronobacter
  2. Bayesian estimation of sensitivity and specificity of a rapid mastitis test kit, bacterial culture, and PCR for detection of Staphylococcus aureus, Streptococcus species, and coliforms in bovine milk samples

    • Fri, 05/06/2022 - 04:00
    • Journal of Dairy Science
    • Our objectives were to evaluate the diagnostic accuracy of a rapid and novel immunochromatography-based mastitis kit that includes 3 independent tests to detect coliforms (Escherichia coli or Klebsiella pneumoniae), 

      • Bacterial pathogens
      • Staphylococcus aureus
  3. Quantum dot bead-based competitive immunochromatographic assay for enterotoxin aureus A detection in pasteurized milk

    • Sat, 04/23/2022 - 04:00
    • Journal of Dairy Science
    • Staphylococcal enterotoxin A (SEA) is an important biotoxin, produced by Staphylococcus aureus under appropriate conditions, and often contaminates milk and dairy products.

      • Bacterial pathogens
      • Staphylococcus aureus
  4. Supplementation of Ascophyllum nodosum meal and monensin: Effects on diversity and relative abundance of ruminal bacterial taxa and the metabolism of iodine and arsenic in lactating dairy cows

    • Sat, 02/26/2022 - 12:00
    • Journal of Dairy Science
    • Previous research has shown that the brown seaweed Ascophyllum nodosum (ASCO) has antimicrobial and antioxidant properties and also increases milk I concentration.

      • Chemical contaminants
      • Heavy Metals
  5. A fluorescent biosensor based on quantum dot–labeled streptavidin and poly-l-lysine for the rapid detection of Salmonella in milk

    • Thu, 02/17/2022 - 18:00
    • Journal of Dairy Science
    • Salmonella, as a common foodborne pathogen in dairy products, poses a great threat to human health. We studied a new detection method based on quantum dots (QD).

      • Bacterial pathogens
      • Salmonella
  6. Bactericidal and antibiofilm properties of Rumex japonicus Houtt. on multidrug-resistant Staphylococcus aureus isolated from milk

    • Thu, 02/17/2022 - 18:00
    • Journal of Dairy Science
    • Multidrug-resistant (MDR) Staphylococcus aureus and its biofilm formation have been challenging to control in milk and dairy industries. Biofilms formed by Staph. aureus may result in the failure of antibacterial agents and disinfectants to penetrate the biofilm in an attempt to control contamination.

      • Bacterial pathogens
      • Staphylococcus aureus
  7. A novel electrochemical aptasensor based on layer-by-layer assembly of DNA-Au@Ag conjugates for rapid detection of aflatoxin M1 in milk samples

    • Thu, 02/17/2022 - 18:00
    • Journal of Dairy Science
    • Aflatoxin M1 (AFM1) is a common toxin in dairy products that causes acute and chronic human health disorders. Thus, the development of a rapid and accurate AFM1 detection method is of vital importance for food safety monitoring.

      • Natural toxins
      • Aflatoxins
      • Mycotoxins
  8. A novel bacteriocin against Staphylococcus aureus from Lactobacillus paracasei isolated from Yunnan traditional fermented yogurt: Purification, antibacterial characterization, and antibiofilm activity

    • Thu, 02/17/2022 - 18:00
    • Journal of Dairy Science
    • Staphylococcus aureus and its biofilm have emerged as a significant threat to the safety of dairy products.

      • Bacterial pathogens
      • Staphylococcus aureus
  9. Multiclass and multi-residue screening of mycotoxins, pharmacologically active substances, and pesticides in infant milk formulas through ultra-high-performance liquid chromatography coupled with high-resolution mass spectrometry analysis

    • Sun, 01/30/2022 - 12:00
    • Journal of Dairy Science
    • Infant milk formulas are designed to substitute human milk when breastfeeding is unavailable. In addition to human milk and milk-derived products, these formulas can be a vehicle of contaminants.

      • Chemical contaminants
      • Pesticide residues
  10. I2/I-mediated fluorescence quenching of an Ag+-doped gold nanocluster-based immunoassay for sensitive detection of Escherichia coli O157:H7 in milk

    • Wed, 01/26/2022 - 06:00
    • Journal of Dairy Science
    • Escherichia coli O157:H7 is a type of hazardous bacteria in the field of food safety. A sensitive and effective method is urgently needed to detect it, avoiding enormous harm for the human health. In this study, we synthesized stable Ag+-doped gold nanoclusters (Ag-AuNC) with a fluorescence intensity 4.8 times stronger than that of AuNC.

      • Bacterial pathogens
      • Enterohemorrhagic Escherichia coli
  11. A novel electrochemical immunosensor based on Fe3O4@graphene nanocomposite modified glassy carbon electrode for rapid detection of Salmonella in milk

    • Fri, 01/21/2022 - 12:00
    • Journal of Dairy Science
    • Foods contaminated by foodborne pathogens have always been a great threat to human life. Herein, we constructed an electrochemical immunosensor for Salmonella detection by using a Fe3O4@graphene modified electrode. Because of the excellent electrical conductivity and mechanical stability of graphene and the large specific surface area of Fe3O4, the Fe3O4@graphene nanocomposite exhibits an excellent electrical signal, which greatly increased the sensitivity of the immunosensor.

      • Bacterial pathogens
      • Salmonella
  12. Real-time recombinase-aided amplification with improved propidium monoazide for the rapid detection of viable Escherichia coli O157:H7 in milk

    • Fri, 01/21/2022 - 12:00
    • Journal of Dairy Science
    • Escherichia coli O157:H7, the causative agent of thrombotic thrombocytopenic purpura and hemolytic uremic syndrome in humans, generates a effective harm to community health because of its high pathogenicity. A real-time recombinase-aided amplification (rRAA) is an emerging method for nucleic acid detection.

      • Bacterial pathogens
      • Enterohemorrhagic Escherichia coli
  13. Molecular epidemiology and antimicrobial resistance profiles of Salmonella isolates from dairy heifer calves and adult lactating cows in a Mediterranean pasture-based system of Australia

    • Fri, 01/21/2022 - 12:00
    • Journal of Dairy Science
    • Dairy cows can be reservoirs of foodborne pathogens such as Salmonella that pose serious public health risks to humans.

      • Bacterial pathogens
      • Salmonella
  14. Immunochromatographic assays for ultrasensitive and high specific determination of enrofloxacin in milk, eggs, honey, and chicken

    • Thu, 01/06/2022 - 08:01
    • Journal of Dairy Science
    • Enrofloxacin, a veterinary antibiotic that persists in food, poses a risk to human health. Here, a monoclonal antibody against enrofloxacin, 1H12, was prepared based on the hapten ENR-1, and showed excellent sensitivity with a 50% inhibitory concentration (IC50) of 0.03 ng/mL. Using this antibody, 2 lateral-flow immunochromatographic assays were developed for determination of enrofloxacin in egg, milk, honey, and chicken samples.

  15. A novel electrochemical immunosensor based on Fe3O4@graphene nanocomposite modified glassy carbon electrode for rapid detection of Salmonella in milk

    • Thu, 01/06/2022 - 08:01
    • Journal of Dairy Science
    • Foods contaminated by foodborne pathogens have always been a great threat to human life. Herein, we constructed an electrochemical immunosensor for Salmonella detection by using a Fe3O4@graphene modified electrode. Because of the excellent electrical conductivity and mechanical stability of graphene and the large specific surface area of Fe3O4, the Fe3O4@graphene nanocomposite exhibits an excellent electrical signal, which greatly increased the sensitivity of the immunosensor.

      • Salmonella
      • Bacterial pathogens
  16. Photoprotective effects of sphingomyelin-containing milk phospholipids in ultraviolet B–irradiated hairless mice by suppressing NF-κB expression

    • Thu, 01/06/2022 - 08:01
    • Journal of Dairy Science
    • Ceramide-containing phospholipids improve skin hydration and barrier function and are ideal for use in skin care products. In this study, we evaluated the photoprotective effect of milk phospholipids on the skin condition of UVB-irradiated hairless mice. Skin parameters were assessed following oral administration of milk phospholipids. The UVB irradiation induced photoaging in mice.

  17. Real-time recombinase-aided amplification with PMAxx for the rapid detection of viable Escherichia coli O157:H7 in milk

    • Thu, 01/06/2022 - 08:01
    • Journal of Dairy Science
    • Escherichia coli O157:H7, the causative agent of thrombotic thrombocytopenic purpura and hemolytic uremic syndrome in humans, generates a effective harm to community health because of its high pathogenicity. A real-time recombinase-aided amplification (rRAA) is an emerging method for nucleic acid detection.

      • Escherichia coli O157:H7
      • Bacterial pathogens
  18. A novel electrochemical aptasensor based on layer-by-layer assembly of DNA-Au@Ag conjugates for rapid detection of aflatoxin M1 in milk samples

    • Fri, 12/24/2021 - 08:01
    • Journal of Dairy Science
    • Aflatoxin M1 (AFM1) is a common toxin in dairy products that causes acute and chronic human health disorders. Thus, the development of a rapid and accurate AFM1 detection method is of vital importance for food safety monitoring. This work was to develop a novel electrochemical aptasensor for sensitive and specific determination of AFM1.

      • Aflatoxins
      • Natural toxins
  19. Molecular epidemiology and antimicrobial resistance profiles of Salmonella isolates from dairy heifer calves and adult lactating cows in a Mediterranean pasture-based system of Australia

    • Fri, 12/24/2021 - 08:01
    • Journal of Dairy Science
    • Dairy cows can be reservoirs of foodborne pathogens such as Salmonella that pose serious public health risks to humans. The study was designed to examine the molecular epidemiology and antimicrobial resistance profiles of Salmonella isolates from dairy heifer calves and adult lactating cows in the pasture-based system of Australia. A total of 838 animals (328 heifer calves and 510 lactating cows) from 22 farms were sampled.

      • Bacterial pathogens
      • Salmonella
  20. Bactericidal and antibiofilm properties of Rumex japonicus Houtt. on multidrug-resistant Staphylococcus aureus isolated from milk

    • Fri, 12/24/2021 - 08:01
    • Journal of Dairy Science
    • Multidrug-resistant (MDR) Staphylococcus aureus and its biofilm formation have been challenging to control in milk and dairy industries. Biofilms formed by Staph. aureus may result in the failure of antibacterial agents and disinfectants to penetrate the biofilm in an attempt to control contamination. Novel natural antibacterial agents are required to combat MDR bacteria and biofilms.

      • Bacterial pathogens
      • Staphylococcus aureus
  21. A survey of mastitis pathogens including antimicrobial susceptibility in southeastern Australian dairy herds

    • Fri, 12/24/2021 - 08:00
    • Journal of Dairy Science
    • The objectives for this study were to (1) describe the pathogen profile in quarters from cows with clinical mastitis and in cows with subclinical mastitis in southeastern Australia; and (2) describe antimicrobial susceptibility among isolated pathogens. As a secondary objective, we aimed to compare antimicrobial resistance prevalence in pathogens isolated from clinical and subclinical mastitis samples.

  22. Development of a Monte Carlo simulation model to predict pasteurized fluid milk spoilage due to post-pasteurization contamination with gram-negative bacteria

    • Fri, 12/24/2021 - 08:00
    • Journal of Dairy Science
    • Psychrotolerant gram-negative bacteria introduced as post-pasteurization contamination (PPC) are a major cause of spoilage and reduced shelf life of high-temperature, short-time pasteurized fluid milk.

  23. Survey on the disposal of waste milk containing antimicrobial residues on Swiss dairy farms

    • Wed, 11/17/2021 - 08:00
    • Journal of Dairy Science
    • Feeding waste milk containing antimicrobial residues (WMA) to calves has been associated with increased antimicrobial resistance in calves' commensal bacterial flora. The objectives of this study were (1) to document practices related to the disposal of WMA on Swiss dairy farms and (2) to evaluate the association between farm characteristics and the feeding of WMA to calves.

  24. Characterization and comparison of the microbiomes and resistomes of colostrum from selectively treated dry cows

    • Wed, 11/10/2021 - 08:01
    • Journal of Dairy Science
    • Professionals in animal agriculture promote prudent use of antimicrobials to address public and animal health concerns, such as reduction of antimicrobial residues and antimicrobial resistance (AMR) in products. Few studies evaluate the effect of selective dry-cow therapy on preservation of the milk microbiome or the profile of AMR genes (the resistome) present at freshening.

  25. Spot urine collection: A valid alternative to total urine collection for metabolomic studies in dairy cattle

    • Wed, 11/10/2021 - 08:01
    • Journal of Dairy Science
    • Urine is a highly suitable biological matrix for metabolomics studies. Total collection for 24-h periods is the gold standard as it ensures the presence of all metabolites excreted throughout the day. However, in animal studies, it presents limitations related to animal welfare and also due to alterations of the metabolome originating from the use of acid for preventing microbial growth or microbial contamination.