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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 564

  1. Green synthesis of biogenetic Te(0) nanoparticles by high tellurite tolerance fungus Mortierella sp. AB1 with antibacterial activity

    • Wed, 10/05/2022 - 04:00
    • Frontiers in Microbiology
    • Tellurite [Te(IV)] is a high-toxicity metalloid. In this study, a fungus with high Te(IV) resistance was isolated. Strain AB1 could efficiently reduce highly toxic Te(IV) to less toxic Te(0). The reduced products formed rod-shaped biogenetic Te(0) nanoparticles (Bio-TeNPs) intracellularly. Further TEM-element mapping, FTIR, and XPS analysis showed that the extracted Bio-TeNPs ranged from 100 to 500 nm and consisted of Te(0), proteins, lipids, aromatic compounds, and carbohydrates.

      • Bacterial pathogens
      • Cronobacter
      • Salmonella
      • Shigella
  2. Bacteriological Quality of Table Eggs in Moroccan Formal and Informal Sector

    • Sun, 09/25/2022 - 04:00
    • International Journal of Food Science
    • Eggs constitute an important part of the Moroccan diet. However, contaminated eggs can cause a serious public health problem if consumed undercooked, uncooked, or used in unpasteurized egg foodstuffs. This study was carried out to evaluate the microbial contents of eggs according to their sales sector in Morocco.

      • Bacterial pathogens
      • Cronobacter
      • Salmonella
      • Shigella
      • Staphylococcus aureus
  3. Controlled human infectious models, a path forward in uncovering immunological correlates of protection: Lessons from enteric fevers studies

    • Tue, 09/20/2022 - 04:00
    • Frontiers in Microbiology
    • Enteric infectious diseases account for more than a billion disease episodes yearly worldwide resulting in approximately 2 million deaths, with children under 5 years old and the elderly being disproportionally affected. Enteric pathogens comprise viruses, parasites, and bacteria; the latter including pathogens such as Salmonella [typhoidal (TS) and non-typhoidal (nTS)], cholera, Shigella and multiple pathotypes of Escherichia coli (E. coli).

      • Bacterial pathogens
      • Salmonella
      • Shigella
  4. Regulation of the cecal microbiota community and the fatty liver deposition by the addition of brewers’ spent grain to feed of Landes geese

    • Tue, 09/20/2022 - 04:00
    • Frontiers in Microbiology
    • The effects of brewers’ spent grain (BSG) diets on the fatty liver deposition and the cecal microbial community were investigated in a total of 320 healthy 5-day-old Landes geese. These geese were randomly and evenly divided into 4 groups each containing 8 replicates and 10 geese per replicate. These four groups of geese were fed from the rearing stage (days 5–60) to the overfeeding stage (days 61–90).

      • Bacterial pathogens
      • Shigella
  5. Association between body weight and distal gut microbes in Hainan black goats at weaning age

    • Fri, 09/16/2022 - 04:00
    • Frontiers in Microbiology
    • Gut microbiota plays a critical role in the healthy growth and development of young animals. However, there are few studies on the gut microbiota of young Hainan black goats. In this study, 12 three-month-old weaned lambs with the same birth date were selected and divided into the high body weight group (HW) and low body weight group (LW).

      • Bacterial pathogens
      • Shigella
  6. Single domain antibodies against enteric pathogen virulence factors are active as curli fiber fusions on probiotic E. coli Nissle 1917

    • Fri, 09/16/2022 - 04:00
    • PLOS Pathogens
    • by Ilia Gelfat, Yousuf Aqeel, Jacqueline M. Tremblay, Justyna J. Jaskiewicz, Anishma Shrestha, James N. Lee, Shenglan Hu, Xi Qian, Loranne Magoun, Abhineet Sheoran, Daniela Bedenice, Colter Giem, Avinash Manjula-Basavanna, Amanda R. Pulsifer, Hann X. Tu, Xiaoli Li, Marilyn L. Minus, Marcia S. Osburne, Saul Tzipori, Charles B. Shoemaker, John M. Leong, Neel S.

      • Cryptosporidium parvium
      • Bacterial pathogens
      • Shigella
      • Parasites
  7. Bacteroides thetaiotaomicron Outer Membrane Vesicles Modulate Virulence of Shigella flexneri

    • Thu, 09/15/2022 - 04:00
    • mBio
    • mBio, Ahead of Print. The role of the gut microbiota in the pathogenesis of Shigella flexneri remains largely unknown. To understand the impact of the gut microbiota on S. flexneri virulence, we examined the effect of interspecies interactions with Bacteroides thetaiotaomicron, a prominent member of the gut microbiota, on S. flexneri invasion. When grown in B. thetaiotaomicron-conditioned medium, S. flexneri showed reduced invasion of human epithelial cells.

      • Bacterial pathogens
      • Shigella
  8. Evolutionary and genomic insights into the long-term colonization of Shigella flexneri in animals

    • Fri, 09/02/2022 - 04:00
    • Emerging Microbes & Infections
    • The enteroinvasive bacterium Shigella flexneri is known as a highly host-adapted human pathogen. There had been no known other reservoirs reported until recently. Here 34 isolates obtained from animals (yaks, dairy cows and beef cattle) from 2016 to 2017 and 268 human S. flexneri isolates from China were sequenced to determine the relationships between animal and human isolates and infer the evolutionary history of animal-associated S. flexneri.

      • Bacterial pathogens
      • Shigella
  9. Impact of gut microbiome on dyslipidemia in japanese adults: Assessment of the Shika-machi super preventive health examination results for causal inference

    • Fri, 09/02/2022 - 04:00
    • Frontiers in Cellular and Infection Microbiology
    • Dyslipidemia (DL) is one of the most common lifestyle-related diseases. There are few reports showing the causal relationship between gut microbiota (GM) and DL. In the present study, we used a linear non-Gaussian acyclic model (LiNGAM) to evaluate the causal relationship between GM and DL. A total of 79 men and 82 women aged 40 years or older living in Shika-machi, Ishikawa Prefecture, Japan were included in the analysis, and their clinical information was investigated.

      • Bacterial pathogens
      • Shigella
  10. Distinguishing the milk microbiota of healthy goats and goats diagnosed with subclinical mastitis, clinical mastitis, and gangrenous mastitis

    • Thu, 08/25/2022 - 11:11
    • Frontiers in Microbiology
    • Mastitis, mainly caused by bacterial intramammary infections, is the main problem in the breeding of dairy animals. The inflammations of the mammary gland is separated by types of mastitis, being subclinical, clinical, and the most severe, gangrenous mastitis. Here, we used 16S rRNA amplicon sequencing to characterize the bacterial microbiota of goat milk in the different types of goat mastitis caused by bacteria.

      • Bacterial pathogens
      • Shigella
      • Staphylococcus aureus
  11. The response of cecal microbiota to inflammatory state induced by Salmonella enterica serovar Enteritidis

    • Thu, 08/25/2022 - 11:11
    • Frontiers in Microbiology
    • By combining the experiments of reciprocal crosses of chicken infected with Salmonella enterica serovar Enteritidis (S. Enteritidis), we focused on the common response of cecal microbiota to an inflammatory state in respect of transcriptome and microbiome. The inoculation of S. Enteritidis improved the microbial diversity and promoted the microbiota evolution in our infection model.

      • Bacterial pathogens
      • Salmonella
      • Shigella
  12. A Wash of Ethyl Acetoacetate Reduces Externally added Salmonella enterica on Tomatoes

    • Tue, 08/23/2022 - 04:00
    • Antibiotics
    • The continuously high numbers of food-borne disease outbreaks document that current intervention techniques are not yet satisfactory. This study describes a novel wash for tomatoes that can be used as part of the food processing chain and is designed to prevent contamination with serovars of Salmonella enterica. The wash contains ethyl acetoacetate (EAA) at a concentration of 8% in H2O. This wash reduced live bacterial counts (on Salmonella Shigella agar) of externally added S.

      • Bacterial pathogens
      • Salmonella
      • Shigella
  13. Identification of the Shigella flexneri Wzy Domain Modulating WzzpHS-2 Interaction and Detection of the Wzy/Wzz/Oag Complex

    • Fri, 08/19/2022 - 04:00
    • Journal of Bacteriology
    • Journal of Bacteriology, Ahead of Print. Shigella flexneri implements the Wzy-dependent pathway to biosynthesize the O antigen (Oag) component of its surface lipopolysaccharide. The inner membrane polymerase WzySF catalyzes the repeat addition of undecaprenol-diphosphate-linked Oag (Und-PP-RUs) to produce a polysaccharide, the length of which is tightly regulated by two competing copolymerase proteins, WzzSF (short-type Oag; 10 to 17 RUs) and WzzpHS-2 (very-long-type Oag; >90 RUs).

      • Bacterial pathogens
      • Shigella
  14. Multiple fluorescent saltatory rolling circle amplification (SRCA) for simultaneous and sensitive detection of Salmonella spp. and Shigella spp. in food

    • Thu, 08/18/2022 - 04:00
    • LWT
    • Salmonella spp. and Shigella spp. are known as the leading causes of food poisoning worldwide. In this study, we developed a new multiple fluorescent saltatory rolling circle amplification (MF-SRCA) assay for simultaneous and sensitive detection of Salmonella spp. and Shigella spp. in food based on the generation of real-time fluorescence curves that distinguish the positive from the negative samples.

      • Bacterial pathogens
      • Salmonella
      • Shigella
  15. Host species and habitats shape the bacterial community of gut microbiota of three non-human primates: Siamangs, white-handed gibbons, and Bornean orangutans

    • Tue, 08/16/2022 - 04:00
    • Frontiers in Microbiology
    • The gut microbiome is essential for a host to digest food, maintain health, and adapt to environments. Bacterial communities of gut microbiota are influenced by diverse factors including host physiology and the environment. Many non-human primates (NHPs), which are physiologically close to humans, are in danger of extinction.

      • Bacterial pathogens
      • Shigella
  16. Dynamics of Genotypic and Phenotypic Antibiotic Resistance in a Conventional Wastewater Treatment Plant in 2 Years

    • Thu, 08/11/2022 - 04:00
    • Frontiers in Microbiology
    • Wastewater treatment plants (WWTPs) are considered a sink and a source of antibiotic resistance. In this study, we applied both culture-dependent and SmartChip-based culture-independent approaches for the investigation of antibiotic-resistant bacteria (ARB) and antibiotic resistance genes (ARGs) at Jungnang (JN), located in the Han River, Seoul, South Korea, for 2 years, i.e., 2017 and 2018.

      • Bacterial pathogens
      • Shigella
  17. Investigation of Gynura segetum root extract (GSrE) induced hepatotoxicity based on metabolomic signatures and microbial community profiling in rats

    • Tue, 08/09/2022 - 04:00
    • Frontiers in Microbiology
    • In recent years, many reports focus on the hepatotoxicity of Gynura segetum root extract (GSrE), but the interaction between GSrE and the gut microbiota is still unclear. This study investigated the mechanism of GSrE-induced hepatotoxicity of different doses and exposure durations by combining metabolomics and gut microbiota analysis. SD rats were divided into 3 groups: blank, low-dose (7.5 g/kg), and high-dose (15 g/kg) groups.

      • Bacterial pathogens
      • Shigella
  18. Mucosal Immune Profiles Associated with Diarrheal Disease Severity in Shigella- and Enteropathogenic Escherichia coli-Infected Children Enrolled in the Global Enteric Multicenter Study

    • Fri, 08/05/2022 - 04:00
    • mBio
    • mBio, Ahead of Print.

      • Bacterial pathogens
      • Shigella
  19. Dissemination of Multiple Drug-Resistant Shigella flexneri 2a Isolates Among Pediatric Outpatients in Urumqi, China

    • Wed, 08/03/2022 - 04:00
    • Foodborne Pathogens and Disease
    • Multiple drug-resistant (MDR) Shigella isolates have been reported worldwide. Between May 2017 and September 2018, 55 Shigella flexneri 2a isolates were collected from 3322 stool samples of 0–10-year-old outpatients with diarrhea at the Children's Hospital of Urumqi, China. All isolates were characterized using serotyping, antimicrobial susceptibility testing, and whole-genome sequencing.

      • Bacterial pathogens
      • Shigella
  20. The integrase of genomic island GIsul2 mediates the mobilization of GIsul2 and ISCR-related element CR2-sul2 unit through site-specific recombination

    • Mon, 08/01/2022 - 04:00
    • Frontiers in Microbiology
    • In the worldwide health threat posed by antibiotic-resistant bacterial pathogens, mobile genetic elements (MGEs) play a critical role in favoring the dissemination of resistance genes. Among them, the genomic island GIsul2 and the ISCR-related element CR2-sul2 unit are believed to participate in this dissemination. However, the mobility of the two elements has not yet been demonstrated.

      • Bacterial pathogens
      • Shigella
  21. Metagenomic insights to understand the role of polluted river Yamuna in shaping the gut microbial communities of two invasive fish species

    • Fri, 07/22/2022 - 04:00
    • Archives of Microbiology
    • The gastrointestinal microbial community plays a crucial role in host health, immunity, protection, development and provides nutrients to the host. The rising human-induced pollution and heavy metal contamination in all aquatic systems globally has led us to explore the gut microbial diversity of two exotic invasive fish Cyprinus carpio (Linnaeus, 1858) and Oreochromis niloticus (Linnaeus,1857) from river Yamuna, India.

      • Bacterial pathogens
      • Shigella
      • Vibrio
  22. Characterization of Functional B-Cell Epitopes at the Amino Terminus of Shigella Invasion Plasmid Antigen B (IpaB)

    • Thu, 07/21/2022 - 04:00
    • Applied and Environmental Microbiology
    • Applied and Environmental Microbiology, Ahead of Print. Shigella invasion plasmid antigen B (IpaB) plays an important role in causing shigellosis. While IpaB’s protein structure, contribution to disease mechanism, and protective immunity against Shigella infection have been well studied, the significance of individual antigenic domains, especially at the N terminus, has not been systematically characterized.

      • Bacterial pathogens
      • Shigella
  23. Visual detection of Shigella in milk by competitive annealing mediated isothermal amplification with paper‐based DNA extraction method

    • Fri, 07/15/2022 - 04:00
    • International Journal of Food Science & Technology
    • International Journal of Food Science & Technology, Accepted Article. Shigella is the main cause of endemic diarrhoea in low-income countries. Fast and accurate detection of this pathogen can effectively prevent the consumption of contaminated food and reduce the risk of diarrhoea outbreaks. Recently, a competitive annealing mediated isothermal amplification (CAMP) assay was proposed as a novel nucleic acid detection technology.

      • Bacterial pathogens
      • Shigella
  24. Altered Gut Microbiota in Patients With Peutz–Jeghers Syndrome

    • Wed, 07/13/2022 - 08:00
    • Frontiers in Microbiology
    • Background Peutz–Jeghers syndrome (PJS) is a rare genetic disorder characterized by the development of pigmented spots and gastrointestinal polyps and increased susceptibility to cancers.

      • Bacterial pathogens
      • Shigella
  25. A Selective Medium for Screening Ceftazidime/Avibactam Resistance in Carbapenem-Resistant Enterobacterales

    • Tue, 07/12/2022 - 04:00
    • Frontiers in Microbiology
    • Ceftazidime/avibactam (CZA) is an alternative antibiotic used for the treatment of infections caused by carbapenem-resistant Enterobacterales (CRE). However, the CZA-resistant CRE strains have been detected worldwide. Therefore, it is critical to screen CZA-resistant CRE strains in colonized patients or a specific population so as to rapidly implement infection control measures to limit their transmission.

      • Bacterial pathogens
      • Salmonella
      • Shigella