Emerging electrochemical biosensing approaches for detection of Listeria monocytogenes in food samples: An overview

Publication date: Available online 27 March 2020Source: Trends in Food Science &TechnologyAuthor(s): Nádia F.D. Silva, M.M.P.S. Neves, Júlia M.C. S. Magalhães, Cristina Freire, Cristina Delerue-Matos
Source: Trends in Food Science and Technology - Category: Food Science Source Type: research

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Mickevičiūtė Thiazole derivatives attract the attention of scientists both in the field of organic synthesis and bioactivity research due to their high biological activity. In the present study, thiazole ring was obtained by the interaction of 1-(4-(bromoacetyl)phenyl)-5-oxopyrrolidine-3-carboxylic acid with thiocarbamide or benzenecarbothioamide, as well as tioureido acid. A series of substituted 1-(3-(1,3-thiazol-2-yl)phenyl)-5-oxopyrrolidines with pyrrolidinone, thiazole, pyrrole, 1,2,4-triazole, oxadiazole and benzimidazole heterocyclic fragments were synthesized and their antibacterial properties were evaluate...
Source: Molecules - Category: Chemistry Authors: Tags: Article Source Type: research
The study examined the efficacy of using bacteriophage as an additive in a cooked-meat model system to control growth of contaminating Listeria monocytogenes during subsequent storage. Studies were designed where Listeria bacteriophage A511 and L. monocytogenes introduced inside or on the surface of the cooked-meat to simulate different bacteriophage application and pathogen contamination scenarios. These scenarios include: (1) A511 and L. monocytogenes in meat; (2) A511 in meat, L. monocytogenes on surface; (3) L. monocytogenes in meat, A511 on surface; and (4) L. monocytogenes followed by A511 on meat surface. Real world...
Source: Frontiers in Microbiology - Category: Microbiology Source Type: research
This study examines the chemical constituents, antioxidant potential, antibacterial mechanism, and antiproliferative activity of Cinnamomum zeylanicum bark essential oil. The compositions of the oil were analyzed by GC-MS, and the major constituents were found to be (E)-cinnamaldehyde (71.50%), linalool (7.00%), β-caryophyllene (6.40%), eucalyptol (5.40%), and eugenol (4.60%). C. zeylanicum essential oil contained remarkable levels of phenolic and bioactive compounds with outstanding ability to scavenge free radicals and inhibit β-carotene oxidation. The growth of pathogenic and spoilage bacteria, especially Gram...
Source: Evidence-based Complementary and Alternative Medicine - Category: Complementary Medicine Tags: Evid Based Complement Alternat Med Source Type: research
Publication date: Available online 18 May 2020Source: Food ControlAuthor(s): Yuanyuan Song, Bassam A. Annous, Xuetong Fan
Source: Food Control - Category: Food Science Source Type: research
Microbial Drug Resistance, Ahead of Print.
Source: Microbial Drug Resistance - Category: Microbiology Authors: Source Type: research
Publication date: Available online 18 May 2020Source: LWTAuthor(s): Chae-Hun Lee, Ji-Hoon Kang, Hyuk-Je Woo, Kyung Bin Song
Source: LWT Food Science and Technology - Category: Food Science Source Type: research
Abstract Multifunctional food packaging was prepared by incorporating betalains-rich vegetable amaranth (Amaranthus tricolor L.) extract into quaternary ammonium chitosan (QC)/fish gelatin (FG) blend films. The structures, physical and functional properties of the films with and without amaranth extract (AE) were determined. Results showed betalains-rich AE was pH-sensitive and could change its colors under alkaline conditions. Structural characterization revealed the interactions between AE and film matrix were based on hydrogen bonds, which influenced the compactness of the films. Notably, AE significantly enhan...
Source: International Journal of Biological Macromolecules - Category: Biochemistry Authors: Tags: Int J Biol Macromol Source Type: research
CONCLUSION: The case presents a patient whose diagnosis of meningoencephalitis became an important differential with neuropsychiatric disorder. The poor outcome reinforces the need to remember this infectious condition as a serious complication in the natural history of SLE. PMID: 32406475 [PubMed - as supplied by publisher]
Source: Jornal Brasileiro de Nefrologia - Category: Urology & Nephrology Tags: J Bras Nefrol Source Type: research
Ramar Foods of Pittsburg, CA, is recalling its 14 ounce packages of Peekaboo branded Mint Chocolate Chip with Hidden Spinach Ice Cream product out of an abundance of caution because of the potential contamination of Listeria monocytogenes, an organism which can cause serious and sometimes fatal infe
Source: FDA Food Safety - Category: Food Science Authors: Source Type: alerts
In this study, WGS was used to characterize and track 252 L. monocytogenes ST9 isolates collected from four Norwegian meat processing plants between 2009 and 2017. The isolates formed distinct clusters relative to genomes found in public databases, and all but three isolates clustered into two major clonal populations. Different contamination patterns were revealed, e.g.: Evidence of contamination of two factories with a clone diverged from its ancestor in the late 1990's through a common source of raw materials; breach of hygienic barriers within a factory leading to repeated detection of two clones in the high-risk zone ...
Source: Applied and Environmental Microbiology - Category: Microbiology Authors: Tags: Appl Environ Microbiol Source Type: research
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