Research Publications (Food Safety)

Salmonella enterica subspecies enterica serovar Typhimurium and its monophasic variant are among the most common Salmonella serovars associated with human salmonellosis each year. Related infections are often due to consumption of contaminated meat of pig, cattle, and poultry origin.

Author(s): Hye Jung Shin, Hoikyung Kim, Larry R. Beuchat, Jee-Hoon Ryu

Almond is a desirable and high-quality food source where the presence of nut allergens and a vulnerability to aflatoxin and Salmonella contamination represent threats to consumer safety. In 2019, over 1 billion kg. of almonds, representing over 80% of the world total, were produced in California from a relatively few varieties with a very narrow genetic base.

by Savannah J. Taylor, Sebastian E. Winter

Author(s): Mathilde Payen, María Pardos de la Gándara, Aurélie Cointe, Alix Massiot, Philippe Bidet, François-Xavier Weill, Stéphane Bonacorsi

ABSTRACT

ABSTRACT

Salmonella enterica with antigenic formula 4,[5],12:i:– is a monophasic variant of S. enterica serovar Typhimurium that has emerged globally as a human pathogen over the last 3 decades. We describe the closed genomes and plasmids from six S. enterica 4,[5],12:i:– isolates recovered from stool samples obtained during investigation of human food poisoning cases reported to PulseNet Canada that are suitable for use as reference strains.

This study aimed to compare the thermal resistance of Salmonella Senftenberg 775 W with other serovars of Salmonella in nonfat dry milk (NDM) and hydrated NDM. The scientific literature suggests that Salmonella Senftenberg 775 W is the most heat-resistant serovar in high-water-activity foods such as milk, but little is known about the heat resistance of Salmonella Senftenberg 775 W compared with other Salmonella serovars in low-water-activity foods such as NDM.

Salmonella enterica serovar Typhimurium (S. Typhimurium) is an important infectious disease pathogen that can survive and replicate in macrophages. Glycolysis is essential for immune responses against S. Typhimur...

Author(s): Cibeli Viana, Juliana Líbero Grossi, Mallu Jagnow Sereno, Ricardo Seiti Yamatogi, Luciano dos Santos Bersot, Douglas Ruben Call, Luís Augusto Nero

Author(s): Andrea R. McWhorter, Margaret Sexton, Kapil K. Chousalkar

Antimicrobial resistance (AMR) in the aquatic environment represents an important means of introduction and dissemination of resistance genes, and presence of resistant pathogens in surface waters may pose a public health concern to recreational and drinking water users.

Author(s): Minjung Shin, Sang-Soon Kim, Dong-Hyun Kang

As the number of farmers’ markets and other direct-to-consumer marketing channels increases, it is crucial to understand the potential risks associated with consuming directly marketed animal products and fresh produce. The overall aim of this project was to assess the prevalence of Salmonella and generic E.

Aim of the study Effect of internalized phthalyl starch nanoparticles (PSNs) on the antimicrobial ability of Lactococcus lactis (LL) KCTC 2013.

by Biruk Tesfaye Birhanu, Eon-Bee Lee, Seung-Chun Park

Enterobacter sp. M4 and other bacterial strains were isolated from plant soft rot disease. Virulent phages such as EspM4VN isolated from soil are trending biological controls for plant disease. This phage has an icosahedral head (100 nm in diameter), a neck, and a contractile sheath (100 nm long and 18 nm wide). It belongs to the Ackermannviridae family and resembles Shigella phage Ag3 and Dickeya phages JA15 and XF4.

Programmed cell death plays crucial roles in organismal development and host defense. Recent studies have highlighted mechanistic overlaps and extensive, multifaceted crosstalk between pyroptosis, apoptosis, and necroptosis, three programmed cell death pathways traditionally considered autonomous.

Author(s): Jingjing He, Fan Sun, Dewei Sun, Zhenyu Wang, Shanshan Jin, Zhiming Pan, Zhengzhong Xu, Xiang Chen, Xinan Jiao

Understanding consumers’ perceptions toward chicken meat safety and quality could provide valuable information to public health educators since it is the most consumed meat. This study explores perceptions of a group of South African consumers on the safety and quality of chicken meat based on intrinsic and extrinsic attributes and identifies related safety risks. Data were collected through a web‐based survey (863 participants).

This study aimed to identify a suitable non-pathogenic surrogate for industrial validation of the irradiation process by high energy electron beam (5 MeV) of dried seeds. Pumpkin seeds and flax seeds were contaminated with a five-strain Salmonella cocktail comprising five different serovars or a two-strain Escherichia coli cocktail comprising pathogenic strains, including E. coli O157:H7. Comparison of log survival fractions of the E.

Salmonella enterica is a Gram-negative bacterium, recognized as one of the most important foodborne pathogens in the world. Bacteriophages represent a promising alternative to the biocontrol of Salmonella. Here, we report the isolation of five Salmonella bacteriophages, the sequencing of their full genomes, and initial genomic characterization.

The objectives of the current study were to determine the effects of supplementing a blend of probiotic bacteria (Provida Calf, MB Nutritional Sciences, Lubbock, TX) on the pathophysiological response to an oral Salmonella enterica serotype Typhimurium challenge in neonatal Jersey calves. Twenty-four Jersey bull calves within 24 h of birth were acquired from a local calf ranch, blocked by total serum protein and initial body weight, and randomly assigned to 1 of 3 treatments (n = 8).