Chemical composition, antioxidant capacity and antibacterial action of five Moroccan essential oils against Listeria monocytogenes and different serotypes of Salmonella enterica
Publication date: Available online 18 September 2020Source: Microbial PathogenesisAuthor(s): Abdelaziz Ed-Dra, Fouzia Rhazi Filali, Vittorio Lo Presti, Badr Zekkori, Luca Nalbone, Aziz Bouymajane, Najla Trabelsi, Filippa Lamberta, Amar Bentayeb, Alessandro Giuffrida, Filippo Giarratana (Source: Microbial Pathogenesis)
Source: Microbial Pathogenesis - September 19, 2020 Category: Infectious Diseases Source Type: research

Modeling the behavior of Listeria innocua in Italian salami during the production and high-pressure validation of processes for exportation to the U.S.
Publication date: Available online 17 September 2020Source: Meat ScienceAuthor(s): Paolo Bonilauri, Giuseppe Merialdi, Mattia Ramini, Lia Bardasi, Roberta Taddei, Maria Silvia Grisenti, Paolo Daminelli, Elena Cosciani-Cunico, Elena Dalzini, Maria Angela Frustoli, Federica Giacometti, Federico Tomasello, Silvia Piva, Andrea Serraino (Source: Meat Science)
Source: Meat Science - September 18, 2020 Category: Food Science Source Type: research

Unraveling the inhibitory mechanism of clove essential oil against Listeria monocytogenes biofilm and applying it to vegetable surfaces
Publication date: December 2020Source: LWT, Volume 134Author(s): Chenghui Zhang, Changzhu Li, Mohamed A. Abdel-Samie, Haiying Cui, Lin Lin (Source: LWT Food Science and Technology)
Source: LWT Food Science and Technology - September 18, 2020 Category: Food Science Source Type: research

Intraperitoneal ampicillin treatment for peritoneal dialysis- related peritonitis with Listeria monocytogenes – a case report
Peritoneal dialysis (PD)-related peritonitis is a rare but serious complication and is associated with increased morbidity and mortality rates. It is most commonly caused by Staphylococcus aureus or Staphylococcu... (Source: BMC Nephrology)
Source: BMC Nephrology - September 18, 2020 Category: Urology & Nephrology Authors: Kristina Boss, Ina Wiegard-Szramek, Jan Dziobaka, Andreas Kribben and Sebastian Dolff Tags: Case report Source Type: research

Synthesis and characterization of antibacterial polylactic acid film incorporated with cinnamaldehyde inclusions for fruit packaging.
Abstract To maintain the quality of postharvest fruits continuously and meet the health requirements of consumers, a high barrier and long-lasting antibacterial polylactic acid film as packaging material was developed in this study. Polylactic acid-based antibacterial films incorporated with Cinnamaldehyde inclusions were used to achieve long-lasting antibacterial activity and improve the barrier properties. Cinnamaldehyde inclusions were prepared via the inclusion method and used as a sustained-release antibacterial agent and reinforcement to be incorporated into polylactic acid-based films within a concentration...
Source: International Journal of Biological Macromolecules - September 15, 2020 Category: Biochemistry Authors: Zhang L, Huang C, Xu Y, Huang H, Zhao H, Wang J, Wang S Tags: Int J Biol Macromol Source Type: research

A pH-neutral electrolyzed oxidizing water significantly reduces microbial contamination of fresh spinach leaves.
Abstract There are growing demands globally to use safe, efficacious and environmentally friendly sanitizers for post-harvest treatment of fresh produce to reduce or eliminate spoilage and foodborne pathogens. Here, we compared the efficacy of a pH-neutral electrolyzed oxidizing water (Ecas4 Anolyte; ECAS) with that of an approved peroxyacetic acid-based sanitizer (Ecolab Tsunami® 100) in reducing the total microbial load and inoculated Escherichia coli, Salmonella Enteritidis and Listeria innocua populations on post-harvest baby spinach leaves over 10 days. The impact of both sanitizers on the overall quality...
Source: Food Microbiology - September 13, 2020 Category: Food Science Authors: Ogunniyi AD, Tenzin S, Ferro S, Venter H, Pi H, Amorico T, Deo P, Trott DJ Tags: Food Microbiol Source Type: research

Neutral electrolyzed oxidizing water is effective for pre-harvest decontamination of fresh produce.
Abstract Pre-harvest sanitization of irrigation water has potential for reducing pathogen contamination of fresh produce. We compared the sanitizing effects of irrigation water containing neutral electrolyzed oxidizing water (EOW) or sodium hypochlorite (NaClO) on pre-harvest lettuce and baby spinach leaves artificially contaminated with a mixture of Escherichia coli, Salmonella Enteritidis and Listeria innocua (~1 × 108 colony-forming units/mL each resuspended in water containing 100 mg/L dissolved organic carbon, simulating a splash-back scenario from contaminated soil/manure). The micr...
Source: Food Microbiology - September 13, 2020 Category: Food Science Authors: Ogunniyi AD, Dandie CE, Brunetti G, Drigo B, Aleer S, Hall B, Ferro S, Deo P, Venter H, Myers B, Donner E, Lombi E Tags: Food Microbiol Source Type: research

Efficacy of combinations of lactic acid and potassium sorbate against Listeria monocytogenes in chicken stored under modified atmospheres.
ez-Arnedo I Abstract The combined effect of lactic acid and potassium sorbate on the growth of L. monocytogenes on chicken legs packaged under modified atmospheres (MAP) and stored at 4 °C was evaluated. An extended lag phase and a lower maximum growth rate for psychrotrophs and mesophiles was found in those samples packaged in 20%CO2/80%N2 and washed with different combinations of lactic acid and potassium sorbate compared to those non-treated with organic acids. Legs packaged in 20%CO2/80%N2 and washed with 3.75% lactic acid- 3.75% potassium sorbate showed a significant (p 
Source: Food Microbiology - September 13, 2020 Category: Food Science Authors: González-Fandos E, Martínez-Laorden A, Perez-Arnedo I Tags: Food Microbiol Source Type: research

Inhibition effect of moringa oil on the cheese preservation and its impact on the viability, virulence and genes expression of Listeria monocytogenes
Publication date: December 2020Source: LWT, Volume 134Author(s): Haiying Cui, Hong Li, Changzhu Li, Mohamed A. Abdel-Samie, Lin Lin (Source: LWT Food Science and Technology)
Source: LWT Food Science and Technology - September 12, 2020 Category: Food Science Source Type: research

German-Wide Interlaboratory Study Compares Consistency, Accuracy and Reproducibility of Whole-Genome Short Read Sequencing
We compared the consistency, accuracy and reproducibility of next-generation short read sequencing between ten laboratories involved in food safety (research institutes, state laboratories, universities and companies) from Germany and Austria. Participants were asked to sequence six DNA samples of three bacterial species (Campylobacter jejuni, Listeria monocytogenes and Salmonella enterica) in duplicate, according to their routine in-house sequencing protocol. Four different types of Illumina sequencing platforms (MiSeq, NextSeq, iSeq, NovaSeq) and one Ion Torrent sequencing instrument (S5) were involved in the study. Sequ...
Source: Frontiers in Microbiology - September 11, 2020 Category: Microbiology Source Type: research

Mining and statistical modeling of natural and variant class IIa bacteriocins elucidates activity and selectivity profiles across species.
Abstract Class IIa bacteriocin antimicrobial peptides (AMPs) are a compelling alternative to current antimicrobials because of potential specific activity towards antibiotic-resistant bacteria, including vancomycin-resistant enterococci. Engineering of these molecules would be enhanced by a better understanding of AMP sequence-activity relationships to improve efficacy in vivo and limit effects of off-target activity. Towards this goal, we experimentally evaluated 210 natural and variant class IIa bacteriocins for antimicrobial activity against six strains of enterococci. Inhibitory activity was ridge regressed to...
Source: Applied and Environmental Microbiology - September 11, 2020 Category: Microbiology Authors: Tresnak DT, Hackel BJ Tags: Appl Environ Microbiol Source Type: research

Treatment of beef with gaseous ozone: Physicochemical aspects and antimicrobial effects on heterotrophic microflora and listeria monocytogenes
Publication date: Available online 4 September 2020Source: Food ControlAuthor(s): Belén Giménez, Natalia Graiver, Leda Giannuzzi, Noemí Zaritzky (Source: Food Control)
Source: Food Control - September 5, 2020 Category: Food Science Source Type: research

Cancers, Vol. 12, Pages 2524: Influence of Intratumor Microbiome on Clinical Outcome and Immune Processes in Prostate Cancer
In this study, we analyzed microbial compositions of intratumor bacteria in PC to determine the influence of the microbiome on metastatic growth. Using large-scale RNA-sequencing data and corresponding clinical data, we correlated the abundance of microbes to immune pathways and PC risk factors, identifying specific microbes that either significantly deter or contribute to cancer aggressiveness. Interestingly, most of the microbes we found appeared to play anti-tumor roles in PC. Since these anti-tumor microbes were overrepresented in tumor samples, we believe that microbes thrive in the tumor microenvironment, outcompete ...
Source: Cancers - September 5, 2020 Category: Cancer & Oncology Authors: Jiayan Ma Aditi Gnanasekar Abby Lee Wei Tse Li Martin Haas Jessica Wang-Rodriguez Eric Y. Chang Mahadevan Rajasekaran Weg M. Ongkeko Tags: Article Source Type: research

Neonatal meningitis: a multicenter study in Lima, Peru.
CONCLUSIONS: The hospital incidence of neonatal meningitis was 1.4 per 1000 live births, being ten times higher in preterm infants. Breathing difficulty was the most frequent symptom in the early stage, while fever and irritability in the late stage. CSF showed pleocytosis without predominance of PMN. The most frequent germs were Escherichia coli and Listeria monocytogenes. Ventriculitis and hydrocephalus were the most common neurological complications. PMID: 32876208 [PubMed - in process] (Source: Revista Peruana de Medicina de Experimental y Salud Publica)
Source: Revista Peruana de Medicina de Experimental y Salud Publica - September 4, 2020 Category: International Medicine & Public Health Tags: Rev Peru Med Exp Salud Publica Source Type: research

Mutant and recombinant phages selected from in vitro coevolution conditions overcome phage-resistant Listeria monocytogenes.
This study demonstrates that in vitro evolution of phages can be utilized to expand the host range and improve the long-term efficacy of phage-based control of L. monocytogenes This approach may also be applied to other phage-host systems for applications in biocontrol, detection, and phage therapy. PMID: 32887717 [PubMed - as supplied by publisher] (Source: Applied and Environmental Microbiology)
Source: Applied and Environmental Microbiology - September 4, 2020 Category: Microbiology Authors: Peters TL, Song Y, Bryan DW, Hudson LK, Denes TG Tags: Appl Environ Microbiol Source Type: research

Neuroinvasive Listeria monocytogenes infection triggers accumulation of brain CD8+ tissue-resident memory T cells in a miR-155-dependent fashion
Brain inflammation is a key cause of cognitive decline after central nervous system (CNS) infections. A thorough understanding of immune responses to CNS infection is essential for developing anti-inflammatory... (Source: Journal of Neuroinflammation)
Source: Journal of Neuroinflammation - September 2, 2020 Category: Neurology Authors: Benjamin R. Cassidy, Miao Zhang, William E. Sonntag and Douglas A. Drevets Tags: Research Source Type: research

The effects of koruk products used as marination liquids against foodborne pathogens (Escherichia coli O157:H7, Listeria monocytogenes and Salmonella Typhimurium) inoculated on poultry meat
Publication date: Available online 1 September 2020Source: LWTAuthor(s): Ilkin Yucel Sengun, Gulden Kilic, Berna Ozturk (Source: LWT Food Science and Technology)
Source: LWT Food Science and Technology - September 2, 2020 Category: Food Science Source Type: research

Heterologous Boosting With Listeria-Based Recombinant Strains in BCG-Primed Mice Improved Protection Against Pulmonary Mycobacterial Infection
In this study, two attenuated recombinant Listeria strains, LMΔ-msv and LIΔ-msv were constructed by deletion of actA and plcB and expression of a fusion protein consisting of T cell epitopes from four Mycobacterium tuberculosis (Mtb) antigens (Rv2460c, Rv2660c, Rv3875, and Rv3804c). The safety and immunogenicity of the two recombinant strains were evaluated in C57BL/6J mice. After intravenous immunization individually, both recombinant strains entered liver and spleen but eventually were eliminated from these organs after several days. Simultaneously, they induced antigen-specific cell-mediated immunity, indica...
Source: Frontiers in Immunology - September 2, 2020 Category: Allergy & Immunology Source Type: research

Neurolisteriosis in a previously asymptomatic patient with serum IgM deficiency: a case report
Listeria monocytogenes is an opportunistic pathogen of the central nervous system commonly associated with impaired cell-mediated immunity. We hereby present a case of adult neurolisteriosis where the only immuno... (Source: BMC Neurology)
Source: BMC Neurology - August 31, 2020 Category: Neurology Authors: Kostas Patas, Theodoros Mavridis, Katerina Psarra, Vassilis E. Papadopoulos, Georgia Mandilara, Alexandra Tsirogianni, Sophia Vassilopoulou and Stylianos Chatzipanagiotou Tags: Case report Source Type: research

Monitoring Italian establishments exporting food of animal origin to third countries: SSOP compliance and Listeria monocytogenes and Salmonella spp. contamination
Publication date: Available online 29 August 2020Source: Food ControlAuthor(s): Salvatore Antoci, Luigi Iannetti, Gabriella Centorotola, Vicdalia Aniela Acciari, Francesco Pomilio, Paolo Daminelli, Costanza Romanelli, Anna Beatrice Ciorba, Nicola Santini, Marina Torresi, Anna Ruolo, Filippo Castoldi, Marco Pierantoni, Pietro Noè, Giacomo Migliorati (Source: Food Control)
Source: Food Control - August 29, 2020 Category: Food Science Source Type: research

Investigating the effects of nisin and free fatty acid combined treatment on Listeria monocytogenes inactivation
Publication date: Available online 28 August 2020Source: LWTAuthor(s): Jiacheng Zhou, Eirini Velliou, Seok Hoon Hong (Source: LWT Food Science and Technology)
Source: LWT Food Science and Technology - August 29, 2020 Category: Food Science Source Type: research

Inactivation of Listeria innocua on blueberries by novel ultrasound washing processes and their impact on quality during storage
Publication date: Available online 27 August 2020Source: Food ControlAuthor(s): Hongchao Zhang, Shawn Tsai, Rohan V. Tikekar (Source: Food Control)
Source: Food Control - August 28, 2020 Category: Food Science Source Type: research

Isothermal inactivation of salmonella, Listeria monocytogenes, and Enterococcus faecium NRRL B-2354 in peanut butter, powder infant formula, and wheat flour
Publication date: Available online 26 August 2020Source: Food ControlAuthor(s): Adam R. Quinn, Ruo Fen Liao, Frost M. Steele, Laura K. Jefferies, Bradley J. Taylor (Source: Food Control)
Source: Food Control - August 28, 2020 Category: Food Science Source Type: research

Broad range of substrate specificities in papain and fig latex enzymes preparations improve enumeration of Listeria monocytogenes.
NĐ Abstract Numerous applications of proteolytic enzymes include dissociation of fermented meat products for the enumeration of `foodborne pathogenic bacteria. The use of trypsin for this cause is abandoned due to the high concentration of the enzyme affecting released bacteria. Papain, as a suggested replacement, and fig latex preparation with high extent of papain-like enzymes have the potential to be applied for bacteria enumeration. Both enzymatic preparations, originating from papaya and fig, showed a broader range of substrate specificities including gelatinolytic activity, especially prominent in the cas...
Source: International Journal of Food Microbiology - August 28, 2020 Category: Food Science Authors: Vatić S, Mirković N, Milošević JR, Jovčić B, Polović NĐ Tags: Int J Food Microbiol Source Type: research

Occurrence of Listeria and Escherichia coli in frozen fruit and vegetables collected from retail and catering premises in England 2018-2019.
This study indicates that L. monocytogenes was present in 10% of frozen vegetables and even though products are generally not ready-to-eat and are intended to be cooked prior to consumption, these have the potential to cause illness. Clear cooking and handling instructions are therefore required on these products to ensure that the health of consumers is not put at risk, and appropriate Good Manufacturing Practice measures should be followed by all fruit and vegetable freezing plants in order to reduce contamination with Listeria during processing. PMID: 32906080 [PubMed - as supplied by publisher] (Source: Internatio...
Source: International Journal of Food Microbiology - August 27, 2020 Category: Food Science Authors: Willis C, McLauchlin J, Aird H, Amar C, Barker C, Dallman T, Elviss N, Lai S, Sadler-Reeves L Tags: Int J Food Microbiol Source Type: research

Amoxicillin Dosing Regimens for the Treatment of Neonatal Sepsis: Balancing Efficacy and Neurotoxicity.
CONCLUSIONS: The acceptability of regimens is highly influenced by efficacy and toxicity targets, the selection of which is challenging. Novel randomized trial designs combined with pharmacometric modeling and simulation could assist in selecting optimal dosing regimens in this understudied population. PMID: 32841941 [PubMed - as supplied by publisher] (Source: Neonatology)
Source: Neonatology - August 25, 2020 Category: Perinatology & Neonatology Authors: van Donge T, Fuchs A, Leroux S, Pfister M, Rodieux F, Atkinson A, Giannoni E, van den Anker J, Bielicki J Tags: Neonatology Source Type: research

Combination effect of 915 MHz microwave heating and carvacrol for inactivation of Escherichia coli O157:H7, Salmonella Typhimurium and Listeria monocytogenes in hot chili sauce
Publication date: Available online 24 August 2020Source: Food ControlAuthor(s): Woo-Ju Kim, Soo-Hwan Kim, Dong-Hyun Kang (Source: Food Control)
Source: Food Control - August 24, 2020 Category: Food Science Source Type: research

Bacteriostatic effect of CoO-TiO2 on Listeria monocytogenes by the presence of the co-catalytic CoO nanoparticles
Publication date: October 2020Source: Journal of Environmental Chemical Engineering, Volume 8, Issue 5Author(s): Sujata A. Sirsat, Oscar Hecht, Carlos Mirabal, David A. Pepe, Wenli Yang, Zahra Mohammad, Viktor G. Hadjiev, Jack A. Neal, Francisco C. Robles Hernandez (Source: Journal of Environmental Chemical Engineering)
Source: Journal of Environmental Chemical Engineering - August 24, 2020 Category: Chemistry Source Type: research

Comparative Genome Analysis and Phenotypic Characterization of Clostridium gasigenes CGAS001 Isolated From Chilled Vacuum-Packed Lamb Meat
This study characterizes the genome of a novel Clostridium gasigenes strain CGAS001 isolated from meat juice sample (MJS) of vacuum-packed lamb meat by comparing it with the type strain C. gasigenes DSM 12272 and five strains representing four other BPS-causing Clostridium sensu stricto species. Phenotypic characteristics of the strain, which include biochemical characteristics, antimicrobial resistance and production of putative polyketide, have been determined. The size of its draft genome is 4.1 Mb with 3,845 coding sequences, 28.7% GC content and 95 RNA genes that include 75 tRNAs, 17 rRNAs, and 3 ncRNAs. Average Nucle...
Source: Frontiers in Microbiology - August 24, 2020 Category: Microbiology Source Type: research

Listeria rhombencephalitis mimicking acute disseminated encephalomyelitis in a patient without predisposing medical conditions
AbstractListeria rhombencephalitis (L. rhombencephalitis) is an uncommon form of central nervous system infection caused by Listeria monocytogenes (LM). It often occurs to immunocompetent individuals. Here, we described the case of a 45-year-old female patient without medical histories, who presented for high-grade fever, headache, and focal neurological manifestations. She was initially empirically diagnosed with acute disseminated encephalomyelitis (ADEM) because of clinical symptoms, acute clinical course, and neuroimaging. However, the biochemical analysis of cerebral spinal fluid (CSF) questioned the diagnosis of ADEM...
Source: Journal of NeuroVirology - August 24, 2020 Category: Neurology Source Type: research

TLC bioautography-guided isolation of essential oil components of cinnamon and clove and assessment of their antimicrobial and antioxidant potential in combination.
This study aimed to evaluate possible synergistic interactions on antimicrobial and antioxidant efficacy of clove and cinnamon oil components in combination and characterization of compounds responsible for synergistic interactions using TLC bioautography followed by checkerboard titration, isobologram analysis, and spectrometric characterization. Among the combinations tested, cinnamaldehyde from cinnamon oil and eugenol from clove oil in combination showed a synergistic antimicrobial interaction against foodborne microbes Listeria monocytogenes (fractional inhibitory concentration index (FICI): 0.31), Salmonella typhimur...
Source: Environmental Science and Pollution Research International - August 24, 2020 Category: Environmental Health Authors: Purkait S, Bhattacharya A, Bag A, Chattopadhyay RR Tags: Environ Sci Pollut Res Int Source Type: research

Maternal- and Fetal-Encoded Perforin-2 Limits Placental Infection by a Bloodborne Pathogen.
In this study, we analyzed perforin-2 activity in the mouse placenta to determine whether perforin-2 plays a similarly protective role. We show that perforin-2 is critical for inhibiting Listeria monocytogenes colonization of the placenta and fetus and that this protection is due to both maternal and fetal-encoded perforin-2. Perforin-2 mRNA is readily detectable in individual immune cells of the decidua, and these levels are further enhanced specifically in decidual macrophages during high-dose infections that result in fetal expulsion. Unexpectedly, inductive perforin-2 expression in decidual macrophages did not occur du...
Source: Journal of Immunology - August 24, 2020 Category: Allergy & Immunology Authors: Gayle P, McGaughey V, Hernandez R, Wylie M, Colletti RC, Nguyen KL, Arons M, Padula L, Strbo N, Schesser K Tags: J Immunol Source Type: research

Legislation and policy analysis on management of listeriosis epidemic disaster in South Africa.
In this study, the disaster management response to the 2017-2018 South Africa listeriosis outbreak is analyzed. The hazard was in part the contamination of a brand of a ready-to-eat (RTE) "polony" with a strain of Listeria monocytogenes ST6. The initial phase of the 2017-2018 listeriosis outbreak was characterized by a rapid increase in the number of detected human cases. The listeriosis outbreak was officially proclaimed in December 2017, resulting in listeriosis being added to the list of notifiable diseases in SA. The delay between onset and proclamation was a result of the difficulty in identifica-tion of the...
Source: American Journal of Disaster Medicine - August 19, 2020 Category: International Medicine & Public Health Tags: Am J Disaster Med Source Type: research

Advances in immunotherapy for cervical cancer
Purpose of review Novel therapies are needed for the treatment of recurrent cervical cancer. The best chemotherapy regimen to date has a response rate of 48% with an overall survival of 17 months, with limited options for second-line chemotherapy. Immunotherapy can induce a strong immune response in cervical cancer due to retained viral antigens and is reviewed in this article. Recent findings Current clinical trials include treatment with Listeria that elicits an immune response against the E7 oncoprotein and active vaccines against the E7 oncoprotein. Although the response rates to programmed cell death 1 (PD-1) inh...
Source: Current Opinion in Oncology - August 18, 2020 Category: Cancer & Oncology Tags: GYNECOLOGIC CANCER: Edited by Jean A. Klastersky Source Type: research

Immunological evaluation of virulence-deficient Listeria monocytogenes strains in C57BL/6 mice
Publication date: Available online 14 August 2020Source: Microbial PathogenesisAuthor(s): Junfei Ma, Manman Xie, Shuying Wang, Qianyu Ji, Liang Guo, Zheng Wang, Jingxuan Qiu, Dongpo Xu, Qing Liu (Source: Microbial Pathogenesis)
Source: Microbial Pathogenesis - August 16, 2020 Category: Infectious Diseases Source Type: research

Decontamination of Listeria monocytogenes in enoki mushrooms using a 405-nm light-emitting diode illumination combined with organic acid dipping
Publication date: Available online 14 August 2020Source: LWTAuthor(s): Jae-Hyun Yoon, Hyeonjin Chu, Do-Young Jeong, Songyi Choi, In-Jun Hwang, Sun-Young Lee, Se-Ri Kim (Source: LWT Food Science and Technology)
Source: LWT Food Science and Technology - August 16, 2020 Category: Food Science Source Type: research

Antibiofilm activity of shikonin against Listeria monocytogenes and inhibition of key virulence factors
Publication date: Available online 14 August 2020Source: Food ControlAuthor(s): Jiahui Li, Siqi Li, Haozhou Li, Xinyu Guo, Du Guo, Yanpeng Yang, Xin Wang, Chunling Zhang, Zhongguo Shan, Xiaodong Xia, Chao Shi (Source: Food Control)
Source: Food Control - August 15, 2020 Category: Food Science Source Type: research

One-step and DNA amplification-free detection of Listeria monocytogenes in ham samples: Combining magnetic relaxation switching and DNA hybridization reaction
Publication date: Available online 13 August 2020Source: Food ChemistryAuthor(s): Xiaobao Qi, Zhilong Wang, Rongsheng Lu, Jiawei Liu, Yue Li, Yiping Chen (Source: Food Chemistry)
Source: Food Chemistry - August 15, 2020 Category: Food Science Source Type: research

Sodium alginate-based edible coating containing nanoemulsion of Citrus sinensis essential oil eradicates planktonic and sessile cells of food-borne pathogens and increased quality attributes of tomatoes.
Abstract There is a growing interest from the worldwide scientific community in formulating edible- biodegradable coatings to replace non-biodegradable and expensive commercial wax-based coatings for preserving postharvest quality attributes of vegetables including tomatoes. Postharvest tomatoes are a suspected vehicle for both Salmonella and Listeria in food poisoning incidents. In this work, the effectiveness of edible nano-emulsion coatings containing sweet orange essential oil and sodium alginate were prepared and characterized, then evaluated antibacterial and antibiofilm activity against Salmonella and Liste...
Source: International Journal of Biological Macromolecules - August 15, 2020 Category: Biochemistry Authors: Das S, Vishakha K, Banerjee S, Mondal S, Ganguli A Tags: Int J Biol Macromol Source Type: research

Bacteriophage biocontrol to fight Listeria outbreaks in seafood.
err H Abstract Listeria monocytogenes is a well-known pathogen responsible for the severe foodborne disease listeriosis. The control of L. monocytogenes occurrence in seafood products and seafood processing environments is an important challenge for the seafood industry and the public health sector. However, bacteriophage biocontrol shows great potential to be used as safety control measure in seafood. This review provides an update on Listeria-specific bacteriophages, focusing on their application as a safe and natural strategy to prevent L. monocytogenes contamination and growth in seafood products and seafood p...
Source: Food and Chemical Toxicology - August 14, 2020 Category: Food Science Authors: Lasagabaster A, Jiménez E, Lehnherr T, Miranda-Cadena K, Lehnherr H Tags: Food Chem Toxicol Source Type: research

Hemorragic presentation of Listeria Monocytogenes rhombencephalic abscess.
Authors: Feraco P, Incandela F, Stallone F, Alaimo F, Geraci L, Bencivinni F, Tona G, Gagliardo C Abstract Listeria monocytogenes (LM) bacterium is a cause of central nervous system (CNS) infection and the most common cause of rhombencephalitis in immunocompetent elderly.A prompt identification of this condition should be always desirable, since its clinical manifestations are often unspecific with prodromal symptoms leading to high rates of morbidity and mortality if underestimated.CNS listeriosis magnetic resonance imaging (MRI) findings are generally not specific. However, in the appropriate clinical setting, fo...
Source: Journal of Population Therapeutics and Clinical Pharmacology - August 13, 2020 Category: Drugs & Pharmacology Tags: J Popul Ther Clin Pharmacol Source Type: research

A comparison of Listeria monocytogenes contamination in bagged and un-bagged lettuce in supermarkets.
Publication date: Available online 10 August 2020Source: LWTAuthor(s): Emmanuel O. Kyere, Goh Wan Qiu, Siti Norbaizura Md Zain, Jon Palmer, Jason J. Wargent, Graham C. Fletcher, Steve Flint (Source: LWT Food Science and Technology)
Source: LWT Food Science and Technology - August 13, 2020 Category: Food Science Source Type: research

Quantifying and modelling the inactivation of Listeria monocytogenes by electrolyzed water on food contact surfaces
Publication date: Available online 12 August 2020Source: Journal of Food EngineeringAuthor(s): Arícia Possas, Fernando Pérez-Rodríguez, Fatih Tarlak, Rosa Maria García-Gimeno (Source: Journal of Food Engineering)
Source: Journal of Food Engineering - August 13, 2020 Category: Food Science Source Type: research

Listeria monocytogenes dissemination in farming and primary production: Sources, shedding and control measures
Publication date: Available online 12 August 2020Source: Food ControlAuthor(s): C. Rodriguez, B. Taminiau, E. García-Fuentes, G. Daube, N. Korsak (Source: Food Control)
Source: Food Control - August 13, 2020 Category: Food Science Source Type: research

Thermal inactivation of Salmonella, Shiga toxin-producing Escherichia coli, Listeria monocytogenes, and a surrogate (Pediococcus acidilactici) on raisins, apricot halves, and macadamia nuts using vacuum-steam pasteurization.
The objective of this study was to determine reductions of Salmonella, STEC, L. monocytogenes, and a possible surrogate (Pediococcus acidilactici) on dried apricot halves, whole macadamia nuts, and raisins after treatment with vacuum-assisted steam at three temperatures (62 °C, 72 °C, or 82 °C) and multiple time intervals. Bacterial inactivation was variable between commodities, with higher temperatures and longer times necessary to achieve comparable reductions of pathogens on apricot halves and macadamia nuts compared to raisins. Reductions of the tested pathogens were comparable; therefore, on...
Source: International Journal of Food Microbiology - August 8, 2020 Category: Food Science Authors: Acuff JC, Wu J, Marik C, Waterman K, Gallagher D, Huang H, Williams RC, Ponder MA Tags: Int J Food Microbiol Source Type: research

Evaluation of a sanitizing washing step with different chemical disinfectants for the strawberry processing industry.
hez G, Bobo G, Viñas I Abstract Strawberries are often consumed fresh or only receive minimal processing, inducing a significant health risk to the consumer if contamination occurs anywhere from farm to fork. Outbreaks of foodborne illness associated with strawberries often involve a broad range of microbiological agents, from viruses (human norovirus) to bacteria (Salmonella spp. and Listeria monocytogenes). The addition of sanitizers to water washes is one of the most commonly studied strategies to remove or inactivate pathogens on berries as well as avoid cross contamination due to reuse of process wash ...
Source: International Journal of Food Microbiology - August 8, 2020 Category: Food Science Authors: Ortiz-Solà J, Abadias M, Colás-Medà P, Sánchez G, Bobo G, Viñas I Tags: Int J Food Microbiol Source Type: research

Microbicidal effectiveness of irradiation from Gamma and X-ray sources at different dose rates against the foodborne illness pathogens Escherichia coli, Salmonella Typhimurium and Listeria monocytogenes in rice
Publication date: October 2020Source: LWT, Volume 132Author(s): Tofa Begum, Peter A. Follett, Farah Hossain, Larry Christopher, Stephane Salmieri, Monique Lacroix (Source: LWT Food Science and Technology)
Source: LWT Food Science and Technology - August 5, 2020 Category: Food Science Source Type: research

High-pressure processing and storage temperature on Listeria monocytogenes, microbial counts and oxidative changes of two traditional dry-cured meat products
Publication date: Available online 3 August 2020Source: Meat ScienceAuthor(s): R. Cava, N. Higuero, L. Ladero (Source: Meat Science)
Source: Meat Science - August 5, 2020 Category: Food Science Source Type: research

Effect of four kinds of natural antimicrobial compounds on the biofilm formation ability of Listeria monocytogenes isolated from beef processing plants in China
Publication date: Available online 3 August 2020Source: LWTAuthor(s): Yunge Liu, Pengcheng Dong, Lixian Zhu, Yimin Zhang, Xin Luo (Source: LWT Food Science and Technology)
Source: LWT Food Science and Technology - August 5, 2020 Category: Food Science Source Type: research

Listeria meningitis complicated by hydrocephalus in an immunocompetent child: case report and review of the literature
Listeria monocytogenes is a Gram-positive bacteria transmitted to human by animal stools, contaminated water and food. (Source: Italian Journal of Pediatrics)
Source: Italian Journal of Pediatrics - August 2, 2020 Category: Pediatrics Authors: Giacomo Brisca, Alberto La Valle, Claudia Campanello, Mattia Pacetti, Mariasavina Severino, Giuseppe Losurdo, Antonella Palmieri, Isabella Buffoni and Salvatore Renna Tags: Case report Source Type: research