CDC reports 67 cases of E. coli linked to romaine lettuce

Just ahead of Thanksgiving, the U.S. Centers for Disease Control and Prevention issued a food safety alert over romaine lettuce. There are at least 67 cases of E. coli across 19 states. Meg Oliver reports.
Source: Health News: CBSNews.com - Category: Consumer Health News Source Type: news

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Publication date: 15 February 2020Source: Materials Chemistry and Physics, Volume 242Author(s): A.S. Rajashekharaiah, G.P. Darshan, H.B. Premkumar, P. Lalitha, S.C. Sharma, H. NagabhushanaAbstractNano biotechnology is rapidly growing eco-friendly research area and used in various broad sections, such as biology, chemistry, physics, biomedicine and material engineering. The synthesis of highly efficient, non-toxic, inexpensive and environmental friendly nanomaterial is an urgent need. The aim of the present work was assessment of anti-oxidant, anti-bacterial and cytotoxicity potentials of Bi2Zr2O7:Dy3+ (1–11 mol ...
Source: Materials Chemistry and Physics - Category: Materials Science Source Type: research
Publication date: Available online 3 December 2019Source: LWTAuthor(s): Jin-Young Han, Won-Jae Song, Joo Hyun Kang, Sea C. Min, Sangheum Eom, Eun Jeong Hong, Seungmin Ryu, Seongbong Kim, Sangwoo Cho, Dong-Hyun KangAbstractWe evaluated the effect of plasma-activated water (PAW) on the populations of foodborne pathogens and food-spoilage microorganisms on Korean rice cake. PAW was produced by treating distilled water with two atmospheric dielectric-barrier discharges (51.7 W, 14.4 kHz, air discharge) for 20 min. The inactivation effect of PAW on indigenous microorganism and inoculated Escherichia coli O157:H7, Salmonel...
Source: LWT Food Science and Technology - Category: Food Science Source Type: research
Publication date: Available online 3 December 2019Source: Food Research InternationalAuthor(s): Alberto Burgos-Edwards, Arantxa Fernández-Romero, Manuel Carmona, Israel Thuissard-Vasallo, Guillermo Schmeda-Hirschmann, Mar LarrosaAbstractChilean currants (Ribes magellanicum and Ribes punctatum) are wild polyphenol-rich berries with interesting bioactivities in several in vitro models. The aim of this study was to investigate the effects of the pre-digested PEE (polyphenol-enriched extract) in a simulated colon model. Fruits were extracted, submitted to simulated gastrointestinal digestion and further colonic fermenta...
Source: Food Research International - Category: Food Science Source Type: research
Publication date: Available online 3 December 2019Source: Food Research InternationalAuthor(s): Elvira Frías, Yenea Iglesias, Avelino Alvarez-Ordóñez, Miguel Prieto, Montserrat González-Raurich, Mercedes LópezAbstractThe efficacy of Cold Atmospheric Pressure Plasma (CAPP) for the inactivation of Salmonella enterica serovar Enteritidis, Salmonella enterica serovar Typhimurium, Listeria monocytogenes and Escherichia coli O157:H7 on tofu was evaluated. The potential of using Plasma Activated Water (PAW) as an immersion solution for controlling microbial growth in tofu throughout its shelf-li...
Source: Food Research International - Category: Food Science Source Type: research
We report an application for the smartphone as an accurate and unbiased reading platform of a lateral flow immunoassays for food safety application. In particular, this report focuses on detection of food-borne bacteria in samples extracted from food matrices such as ground beef and spinach. The lateral flow assay is a widely accepted methodology owing to its on-site results, low-cost analysis, and ease of use with minimum user inputs, even though sensitivity is not quite equivalent to that of standard laboratory equipment. An antibody-antigen relationship is transduced into a color change on a nitrocellulose pad while vis...
Source: Journal of Microbiological Methods - Category: Microbiology Source Type: research
Abstract Mucosal-associated invariant T (MAIT) cells are an abundant innate-like T cell subset in humans, enriched in mucosal tissues and the liver. MAIT cells express a semi-invariant T cell receptor (TCR) and recognize microbial-derived riboflavin metabolites presented on the MHC Class I-like molecule MR1. In addition to activation via the TCR, MAIT cells can also be activated in response to cytokines such as IL-12 and IL-18, in contrast to conventional T cells. Here we describe TCR-dependent and -independent methods for MAIT cell activation. The TCR-dependent approaches include stimulation with microbead- or pl...
Source: Mol Biol Cell - Category: Molecular Biology Authors: Tags: Methods Mol Biol Source Type: research
Publication date: Available online 4 December 2019Source: Journal of Molecular LiquidsAuthor(s): Yang Yu, Zeyu Yang, Shujing Ren, Yanan Gao, Liqiang ZhengAbstractBiocompatible antibacterial hydrogels as novel dressing materials have been a widely researched method in modern medical technology. Here, we designed and prepared a new type of multifunctional antibacterial hydrogels that used poly(vinyl alcohol) (PVA)-tetrahydroxyborate anion (B(OH)4−) hydrogel as a vector and pyrrolidinium ionic liquids (ILs) as antibacterial drugs. The formation of borate ester bonds between PVA and B(OH)4− as dynamic network junct...
Source: Journal of Molecular Liquids - Category: Molecular Biology Source Type: research
Publication date: January 2020Source: Microchemical Journal, Volume 152Author(s): Nacera Riad, Mohamed Reda Zahi, Emanuela Trovato, Naima Bouzidi, Yasmina Daghbouche, Margita Utczás, Luigi Mondello, Mohamed El HattabAbstractThe genus Dictyopteris, comprising 35 species, is known by its characteristic marine fragrances which is mainly associated to aspecific chemical composition. Dictyopteris polypodioides (D. polypodioides), known as Dictyopteris membranacea (D. membranacea), is distributed in several region of the world and characterized by a wide range of bioactive compounds. In the current research, the chemical ...
Source: Microchemical Journal - Category: Chemistry Source Type: research
Publication date: January 2020Source: Microchemical Journal, Volume 152Author(s): Svetlana Đogo Mračević, Marko Krstić, Aleksandar Lolić, Slavica RažićAbstractA chemical characterization and biological activity of 7 honey types (multifloral, linden, rapeseed, sunflower, phacelia, acacia and honeydew honey) from different regions of Serbia were presented. The physicochemical characteristics, mineral content, antioxidant and antimicrobial activity were estimated and discussed. All honeys showed good nutritional characteristics, according to the adopted criteria of the standard codex for honey. The concentrations of 15...
Source: Microchemical Journal - Category: Chemistry Source Type: research
In conclusion, G. duodenalis infection prevalence is relatively low in the study population. Young age and diagnosis of co-infections are common, warranting screening for G. duodenalis.
Source: Comparative Immunology, Microbiology and Infectious Diseases - Category: Infectious Diseases Source Type: research
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