Sushi, salads and spring rolls recalled on listeria fears

Products are sold in 31 states and Washington, D.C., by Trader Joe's, 7-Eleven, Walgreens and other retailers.
Source: Health News: CBSNews.com - Category: Consumer Health News Source Type: news

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Lipari Foods is expanding its January 6, 2020 and January 13, 2020 recalls of Premo and Fresh Grab sandwiches to include all sandwiches with a Best By date of 2/6/20 and prior, due to potential contamination of Listeria monocytogenes
Source: FDA Food Safety - Category: Food Science Authors: Source Type: alerts
Publication date: Available online 22 January 2020Source: Food ControlAuthor(s): J.O. de Moraes, S.T. Hilton, C.I. MoraruAbstractThe main goal of this study was to evaluate the effectiveness of a combination of antimicrobial films and Pulsed Light (PL) on inactivation of Listeria innocua on Cheddar cheese surface, and maintaining of product quality during refrigerated storage. The mechanical and antimicrobial properties of starch films (ASF) containing sodium benzoate (ASF-SB) and citric acid (ASF-CA), prepared by casting and irradiated with PL, were evaluated. These films were used as packaging for Cheddar cheese slices t...
Source: Food Control - Category: Food Science Source Type: research
The foodborne pathogen Listeria monocytogenes survives exposure to a variety of stresses including desiccation in the food industry. Strand-specific RNA sequencing was applied to analyze changes in the transcriptomes of two strains of L. monocytogenes (Lm 568 and Lm 08-5578) during desiccation [15°C, 43% relative humidity (RH)] on food grade stainless steel surfaces over 48 h to simulate a weekend with no food production. Both strains showed similar survival during desiccation with a 1.8–2 Log CFU/cm2 reduction after 48 h. Analysis of differentially expressed (DE) genes (>twofold, adjusted p-value
Source: Frontiers in Microbiology - Category: Microbiology Source Type: research
In conclusion, the inactivation rate (i.e., kmax) of L. monocytogenes was affected by a complex relation between food matrix fat content, thermal conductivity, rheological properties, and inactivation temperature. Due to the small scale of the model systems, differences in kmax did not directly affect the final log reductions in a similar fashion.
Source: Frontiers in Microbiology - Category: Microbiology Source Type: research
In conclusion, we show here that during systemic Lm infection in mice ADAP is essential for efficient cytotoxic capacity and migration of NK cells.
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
Long non-coding RNAs (lncRNAs) have emerged as key regulators of gene expression in several biological systems. The long intergenic RNA-erythroid pro-survival (lincRNA-EPS) has been shown to play a critical role in restraining inflammatory gene expression. However, the function of lincRNA-EPS during bacterial infections remains unknown. Here, we demonstrate that following infection with the intracellular bacterium Listeria monocytogenes, both mouse macrophages and dendritic cells lacking lincRNA-EPS exhibit an enhanced expression of proinflammatory cytokine genes, as well as an increased expression of the inducible nitric ...
Source: Frontiers in cellular and infection microbiology - Category: Microbiology Source Type: research
Listeria monocytogenes is a foodborne bacterium that causes gastroenteritis, meningitis, or abortion. Listeria induces its internalization (entry) into some human cells through interaction of the bacterial surface protein InlB with its host receptor, the Met tyrosine kinase. InlB and Met promote entry through stimulation of localized actin polymerization and exocytosis. How actin cytoskeletal changes and exocytosis are controlled during entry is not well understood. Here, we demonstrate important roles for the host GTPase Arf1 and its effectors AP1 and PICK1 in actin polymerization and exocytosis during InlB-dependent upta...
Source: Infection and Immunity - Category: Infectious Diseases Authors: Tags: Cellular Microbiology: Pathogen-Host Cell Molecular Interactions Source Type: research
Isoprenoids are an essential and diverse class of molecules, present in all forms of life, that are synthesized from an essential common precursor derived from either the mevalonate pathway or the nonmevalonate pathway. Most bacteria have one pathway or the other, but the Gram-positive, facultative intracellular pathogen Listeria monocytogenes is unusual because it carries all the genes for both pathways. While the mevalonate pathway has previously been reported to be essential, here we demonstrate that the nonmevalonate pathway can support growth of strains 10403S and EGD-e, but only anaerobically. L. monocytogenes lackin...
Source: Infection and Immunity - Category: Infectious Diseases Authors: Tags: Cellular Microbiology: Pathogen-Host Cell Molecular Interactions Source Type: research
Publication date: Available online 20 January 2020Source: LWTAuthor(s): Moussa S. Diarra, Yousef I. Hassan, Glenn S. Block, John C.G. Drover, Pascal Delaquis, B. Dave OomahAbstractCranberry (Vaccinium macrocarpon) fruits are known for their high polyphenolics content making them a rich source of antioxidants. These polyphenolics have been reported to promote human health and are gaining attention for their antimicrobial activities against foodborne pathogens. We investigated the antimicrobial activity of an ethanolic extract #(FC111-1) prepared from cranberry pomace against Listeria spp. Many polyphenolics were identified ...
Source: LWT Food Science and Technology - Category: Food Science Source Type: research
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Source: Gut Microbes - Category: Microbiology Authors: Source Type: research
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