21,244 results match your criteria Listeria Monocytogenes


Antibacterial properties of nanofibers containing chrysanthemum essential oil and their application as beef packaging.

Int J Food Microbiol 2018 Dec 8;292:21-30. Epub 2018 Dec 8.

School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China. Electronic address:

This study was aimed to develop novel antibacterial packaging materials in order to reduce the microbial contamination of food surface. Chrysanthemum essential oil (CHEO) was successfully incorporated into chitosan nanofibers (CS/NF) through electrospinning which was demonstrated by SEM and AFM analysis. The antibacterial mechanism of CHEO against Listeria monocytogenes (L. Read More

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December 2018
1 Read

Molecular characterization of LysPBC2, a novel endolysin harboring a spore binding domain.

Appl Environ Microbiol 2018 Dec 14. Epub 2018 Dec 14.

Department of Food and Animal Biotechnology, Department of Agricultural Biotechnology, Research Institute of Agriculture and Life Sciences, and Center for Food and Bioconvergence, Seoul National University, Seoul 08826, South Korea

To control a spore-forming human pathogen , we isolated and characterized a novel endolysin, LysPBC2, from a newly isolated phage PBC2. Compared to the narrow host range of phage PBC2, LysPBC2 showed very broad lytic activity against all , , and species tested. In addition to a catalytic domain and a cell wall binding domain, LysPBC2 has a spore binding domain (SBD) partially overlapped with its catalytic domain, which specifically binds to spores but not to vegetative cells of Both immunogold electron microscopy and binding assay indicate that the SBD binds the external region of the spore cortex layer. Read More

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December 2018
1 Read

Effect of Benzalkonium Chloride Adaptation on Sensitivity to Antimicrobial Agents and Tolerance to Environmental Stresses in .

Front Microbiol 2018 28;9:2906. Epub 2018 Nov 28.

Institute of Food Safety and Nutrition, Jinan University, Guangzhou, China.

is an important food-borne pathogen that can persist in food processing environments and thus contaminate food products. Benzalkonium chloride (BC) is a common disinfectant widely used in food industry. Selective pressure associated with exposure to BC may result in adaptation to this agent in . Read More

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November 2018

HflXr, a homolog of a ribosome-splitting factor, mediates antibiotic resistance.

Proc Natl Acad Sci U S A 2018 Dec 13. Epub 2018 Dec 13.

Département de Biologie Cellulaire et Infection, Unité des Interactions Bactéries-Cellules, Institut Pasteur, F-75015 Paris, France;

To overcome the action of antibiotics, bacteria have evolved a variety of different strategies, such as drug modification, target mutation, and efflux pumps. Recently, we performed a genome-wide analysis of gene expression after growth in the presence of antibiotics, identifying genes that are up-regulated upon antibiotic treatment. One of them, , is a homolog of , which encodes a heat shock protein that rescues stalled ribosomes by separating their two subunits. Read More

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December 2018

Stimulating Respiratory Activity Primes Anaerobically Grown for Subsequent Intracellular Infections.

Pathogens 2018 Dec 8;7(4). Epub 2018 Dec 8.

Department of Biology, University of Dayton, Dayton, OH 45469, USA.

is a Gram-positive, enteric pathogen and the causative agent of listeriosis. During transition through the gastrointestinal tract, routinely encounters suboxic conditions. However, how the exposure to the low oxygen environment affects subsequent pathogenesis is not completely understood. Read More

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December 2018

Batf2 differentially regulates tissue immunopathology in Type 1 and Type 2 diseases.

Mucosal Immunol 2018 Dec 12. Epub 2018 Dec 12.

International Centre for Genetic Engineering and Biotechnology (ICGEB), Cape Town Component, Cape Town, 7925, South Africa.

Basic leucine zipper transcription factor 2 (Batf2) activation is detrimental in Type 1-controlled infectious diseases, demonstrated during infection with Mycobacterium tuberculosis (Mtb) and Listeria monocytogenes Lm. In Batf2-deficient mice (Batf2), infected with Mtb or Lm, mice survived and displayed reduced tissue pathology compared to infected control mice. Indeed, pulmonary inflammatory macrophage recruitment, pro-inflammatory cytokines and immune effectors were also decreased during tuberculosis. Read More

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December 2018
1 Read

: cell biology of invasion and intracellular growth.

Microbiol Spectr 2018 Nov;6(6)

Unité Interactions Bactéries-Cellules, Institut Pasteur, Paris F-75015, FRANCE.

The Gram-positive pathogen is able to promote its entry into a diverse range of mammalian host cells by triggering plasma membrane remodeling, leading to bacterial engulfment. Upon cell invasion, disrupts its internalization vacuole and translocates to the cytoplasm, where bacterial replication takes place. Subsequently, uses an actin-based motility system that allows bacterial cytoplasmic movement and cell-to-cell spread. Read More

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November 2018

Antimicrobial properties of rosin acids-loaded nanoparticles against antibiotic-sensitive and antibiotic-resistant foodborne pathogens.

Artif Cells Nanomed Biotechnol 2018 Dec 7:1-9. Epub 2018 Dec 7.

a Institute of Sciences of Food Production , National Research Council (ISPA-CNR) , Bari , Italy.

Rosin acids (RA) from coniferous trees are used in folk medicine for healing various skin infections. Despite the antimicrobial potential of RA, their poor solubility in aqueous media may limit their use. In this work RA-loaded polyethylene glycol-poly(lactic-co-glycolic acid) nanoparticles (RA-NPs) with enhanced antimicrobial properties against foodborne bacterial pathogens were produced. Read More

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December 2018

Structure-activity relationships of the bacteriocin bactofencin A and its interaction with bacterial membrane.

ACS Infect Dis 2018 Dec 12. Epub 2018 Dec 12.

The antimicrobial peptide bactofencin A is an unmodified non-pediocin-like bacteriocin that inhibits several clinically relevant pathogens including Listeria monocytogenes and Staphylococcus aureus. Here we report the synthesis and structure-activity relationship studies of bactofencin A and novel analogs thereof. Synthetic bactofencin A was a potent inhibitor of L. Read More

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December 2018

Gamma secretase dependent release of the CD44 cytoplasmic tail upregulates IFI16 in cd44-/- tumor cells, MEFs and macrophages.

PLoS One 2018 12;13(12):e0207358. Epub 2018 Dec 12.

Leibniz Institute on Aging, Fritz Lipmann Institute (FLI), Jena, Germany.

The adhesion molecule and co-receptor of receptor tyrosine kinases, CD44, is expressed in all cells of the immune system, but also in numerous non-immune cells. CD44 plays roles in the cellular response to different pathogens. The molecular actions of CD44 during these processes are by and large still unknown. Read More

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December 2018
3.234 Impact Factor

MdrL, a major facilitator superfamily efflux pump of Listeria monocytogenes involved in tolerance to benzalkonium chloride.

Appl Microbiol Biotechnol 2018 Dec 11. Epub 2018 Dec 11.

Institute of Food Safety and Nutrition, Jinan University, Guangzhou, China.

Efflux pumps are recognized as an important mechanism for decreased susceptibility of benzalkonium chloride (BC) in Listeria monocytogenes. Previous studies showed that the efflux pump MdrL was overexpressed in L. monocytogenes exposed to BC. Read More

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December 2018

Growth potential of in six different RTE fruit products: impact of food matrix, storage temperature and shelf life.

Ital J Food Saf 2018 Sep 8;7(3):7581. Epub 2018 Oct 8.

Institute for Food Safety and Hygiene.

We tested the growth potential of on six RTE fruit products at low (4°C at the factory followed by 8°C retail/home storage) and abusive (4°C followed by 12°C) storage temperatures. Sliced coconut and fresh cut cantaloupe, as well as a fruit mix containing diced pineapple, cantaloupe, apples and grapes supported the growth of with a growth potential δ>0.5 log CFU/g over six days. Read More

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September 2018

Neuroinvasive Infection Triggers IFN-Activation of Microglia and Upregulates Microglial miR-155.

Front Immunol 2018 27;9:2751. Epub 2018 Nov 27.

Department of Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, OK, United States.

MicroRNA (miR) miR-155 modulates microglial activation and polarization, but its role in activation of microglia during bacterial brain infection is unclear. We studied miR-155 expression in brains of C57BL/6 (B6.WT) mice infected i. Read More

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November 2018
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What role does pyroptosis play in microbial infection?

J Cell Physiol 2018 Dec 7. Epub 2018 Dec 7.

College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, China.

Pyroptosis, a type of programmed cell death mediated by gasdermin, is characterized by the swelling and rupture of cells, release of cellular contents and a strong inflammatory response, which is critical for controlling microbial infection. Pattern recognition receptors recognize the intracellular and extracellular pathogenic microbial components and stimulate the organism's inflammatory response by activating the pyroptosis signaling pathway and releasing interleukin-1β (IL-1β), IL-18, and other inflammatory factors to promote pathogen clearance and prevent infection. In the process of continuous evolution, pathogens have developed multiple strategies to modulate the occurrence of pyroptosis and thus enhance their ability to induce disease; that is, the competition between host cells and pathogens controls the occurrence of pyroptosis. Read More

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December 2018
3 Reads

Characterization of Erythromycin and Tetracycline Resistance in Strains.

Int J Microbiol 2018 11;2018:3912326. Epub 2018 Nov 11.

Department of Microbiology, Kazan Federal University, Kremlevskaya Str. 18, Kazan 420008, Russia.

colonizing gastrointestinal and urogenital tracts of humans and animals is widely used in manufacturing of fermented products and as probiotics. These bacteria may function as vehicles of antibiotic resistance genes, which can be transferred to pathogenic bacteria. Therefore, monitoring and control of transmissible antibiotic resistance determinants in these microorganisms is necessary to approve their safety status. Read More

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November 2018

The Impact of Chitosan-Divergicin Film on Growth of in Cold-Smoked Salmon.

Front Microbiol 2018 26;9:2824. Epub 2018 Nov 26.

Department of Food Science, Faculty of Agriculture and Food Sciences, Institute of Nutrition and Functional Foods, Université Laval, Québec City, QC, Canada.

The aim of this study was to evaluate the impact of chitosan film, with bacteriocin divergicin 35 incorporate, on growth of in Cold smoked salmon. The simples of Cold-smoked wild salmon were inoculated with and treated with chitosan (100 kDa, 94.7% de-acetylated) and divergicin M35 was stored for 3 weeks at 4-8°C. Read More

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November 2018

The current status of immunotherapy for cervical cancer.

Rep Pract Oncol Radiother 2018 Nov-Dec;23(6):580-588. Epub 2018 May 18.

Gynae Oncology Unit, The Royal Marsden NHS Foundation Trust, 203 Fulham Road, London SW3 6JJ, UK.

Immunotherapy has been proven effective in several tumours, hence diverse immune checkpoint inhibitors are currently licensed for the treatment of melanoma, kidney cancer, lung cancer and most recently, tumours with microsatellite instability. There is much enthusiasm for investigating this approach in gynaecological cancers and the possibility that immunotherapy might become part of the therapeutic landscape for gynaecological malignancies. Cervical cancer is the fourth most frequent cancer in women worldwide and represents 7. Read More

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May 2018
2 Reads

Whole-Genome Sequences of Six Listeria monocytogenes Strains Isolated from Food.

Microbiol Resour Announc 2018 Oct 11;7(14). Epub 2018 Oct 11.

Institute for Food Safety and Hygiene, Vetsuisse Faculty, University of Zürich, Zürich, Switzerland.

Here, we report the whole-genome sequences of six Listeria monocytogenes strains isolated from meat and milk products in Switzerland. All of these strains carry premature stop codons or amino acid deletions in . Read More

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October 2018
2 Reads

Draft Whole-Genome Sequences of Seven Listeria monocytogenes Strains with Variations in Virulence and Stress Responses.

Microbiol Resour Announc 2018 Oct 4;7(13). Epub 2018 Oct 4.

Mycotoxin Prevention and Applied Microbiology Research Unit, National Center for Agricultural Utilization Research, Agricultural Research Service, U.S. Department of Agriculture, Peoria, Illinois, USA.

Listeria monocytogenes is an important foodborne pathogen that causes listeriosis. Here, we report the draft genome sequences of seven L. monocytogenes strains isolated from food, environmental, and clinical sources. Read More

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October 2018
1 Read

Biomolecule-corona formation confers resistance of bacteria to nanoparticle-induced killing: Implications for the design of improved nanoantibiotics.

Biomaterials 2018 Nov 21;192:551-559. Epub 2018 Nov 21.

Department of Nanobiomedicine/ENT, University Medical Center of Mainz, Langenbeckstrasse 1, 55101, Mainz, Germany. Electronic address:

Multidrug-resistant bacterial infections are a global health threat. Nanoparticles are thus investigated as novel antibacterial agents for clinical practice, including wound dressings and implants. We report that nanoparticles' bactericidal activity strongly depends on their physical binding to pathogens, including multidrug-resistant primary clinical isolates, such as Staphylococcus aureus, Klebsiella pneumoniae or Enterococcus faecalis. Read More

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November 2018
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Listeria monocytogenes rhombencephalitis in a patient with multiple sclerosis during fingolimod therapy.

Mult Scler Relat Disord 2018 Nov 24;27:409-411. Epub 2018 Nov 24.

Inonu University, School of Medicine, Department of Neurology, Malatya, Turkey.

Objective: To describe a case of Listeria monocytogenes rhombencephalitis in a patient receiving fingolimod.

Methods: This is a case study.

Results: Our patient developed acute rhombencephalitis with hydrocephalus induced with Listeria monocytogenes while on fingolimod. Read More

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November 2018

Mortality risk factors for listeriosis - A 10 year review of non-pregnancy associated cases in England 2006-2015.

J Infect 2018 Dec 5. Epub 2018 Dec 5.

Reference Microbiology Services, National Infection Service, Public Health England, 61 Colindale Avenue, London NW9 5EQ, United Kingdom; Gastrointestinal Infections Department, National Infection Service, Public Health England, 61 Colindale Avenue, London NW9 5EQ, United Kingdom. Electronic address:

LISTERIOSIS: is a foodborne illness that can result in septicaemia, Central Nervous System (CNS) disease, foetal loss and death in high risk patients.

Objectives: To analyse the demographic trends, clinical features and treatment of non-perinatal listeriosis cases over a ten year period and identify mortality-associated risk factors.

Methods: Reported laboratory-confirmed non-pregnancy associated cases of listeriosis between 2006 and 2015 in England were included and retrospectively analysed. Read More

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December 2018
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Bacteriocin production by Lactobacillus plantarum ST16Pa in supplemented whey powder formulations.

J Dairy Sci 2018 Oct 24. Epub 2018 Oct 24.

Department of Biochemical and Pharmaceutical Technology, Faculty of Pharmaceutical Sciences, University of São Paulo, 05508-000 São Paulo, Brazil. Electronic address:

Whey, the main by-product of the dairy industry, is frequently disposed of in the environment without any treatment due to the high cost of this process. Alternatively, whey can be used as a medium to culture lactic acid bacteria and produce value-added products such as bacteriocins. In this work, we attempted to improve bacteriocin production by Lactobacillus plantarum ST16Pa in a whey powder formulation supplemented with additional sources of carbon, nitrogen, and vitamin B at different levels and varying the agitation intensity according to a Plackett-Burman experimental design. Read More

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October 2018

European and International validation of 15 main reference methods in the microbiology of the food chain.

Int J Food Microbiol 2019 Jan;288:1-2

Chairman of ISO/TC 34/SC 9 (formerly), French Agency for Food, Environmental, Occupational Health & Safety (ANSES), Laboratory for Food Safety, Maisons-Alfort, France.

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January 2019

Effect of Low Doses of Disinfectants on the Biofilm-Forming Ability of Listeria monocytogenes.

Foodborne Pathog Dis 2018 Dec 11. Epub 2018 Dec 11.

1 Department of Food Hygiene and Technology, Veterinary Faculty, University of León , León, Spain .

This study was intended to investigate the effect of contact with concentrations close to the minimum inhibitory concentration (MIC) (0.5, 1, and 1.5 MIC; MIC of planktonic cells was determined using a microdilution broth method) of sodium hypochlorite (SHY) or benzalkonium chloride (BZK) during the process of formation of biofilm (24 h), upon the architecture and viability of the biofilms formed by four L. Read More

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December 2018

Tracing of Contamination Routes in Fermented Sausage Production Chain by Pulsed-Field Gel Electrophoresis Typing.

Foods 2018 Dec 4;7(12). Epub 2018 Dec 4.

Faculty of Veterinary Medicine, University of Zagreb, 10000 Zagreb, Croatia.

In this study, the presence of was assessed along the production process of fermented sausages in a small-scale facility. Following the isolation of the pathogen from the final product (ISO 11290-1), retrospective sampling was performed during the production of a new batch of sausages, including raw materials, casings, additives, sausage mixtures, sausages during fermentation, and environmental samples. was recovered from the following sampling points: the defrosting room and the cuttering, mixing, stuffing, and fermentation phases. Read More

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December 2018

Stathmin recruits tubulin to Listeria monocytogenes-induced actin comets and promotes bacterial dissemination.

Cell Mol Life Sci 2018 Dec 1. Epub 2018 Dec 1.

Group of Molecular Microbiology, i3S-Instituto de Investigação e Inovação em Saúde, IBMC-Instituto de Biologia Molecular e Celular, Universidade do Porto, Rua Alfredo Allen, 208, 4200-135, Porto, Portugal.

The tubulin cytoskeleton is one of the main components of the cytoarchitecture and is involved in several cellular functions. Here, we examine the interplay between Listeria monocytogenes (Lm) and the tubulin cytoskeleton upon cellular infection. We show that non-polymeric tubulin is present throughout Lm actin comet tails and, to a less extent, in actin clouds. Read More

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December 2018

virulence factors, including Listeriolysin O, are secreted in biologically active Extracellular Vesicles.

J Biol Chem 2018 Nov 30. Epub 2018 Nov 30.

Johns Hopkins University, United States.

Outer membrane vesicles produced by Gram-negative bacteria have been studied for half a century but the possibility that Gram-positive bacteria secreted extracellular vesicles (EVs) was not pursued until recently due to the assumption that the thick peptidoglycan cell wall would prevent their release to the environment. However, following their discovery in fungi, which also have cell walls, EVs have now been described for a variety of Gram-positive bacteria. EVs purified from Gram-positive bacteria are implicated in virulence, toxin release and transference to host cells, eliciting immune responses, and spread of antibiotic resistance. Read More

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November 2018
2 Reads

Disease presentations of in sheep.

Authors:

Vet Rec 2018 Dec;183(21):649

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December 2018

Eugenol and carvacrol migration from PHBV films and antibacterial action in different food matrices.

Food Chem 2019 Mar 21;277:38-45. Epub 2018 Oct 21.

Institute of Food Engineering for Development, Universitat Politècnica de València, Valencia, Spain. Electronic address:

The antibacterial effect of PHBV films with oregano or clove essential oil, or their main compounds, carvacrol (CA) and eugenol (EU), respectively, was analysed in food matrices (cheese, chicken breast and pumpkin and melon) and in vitro test for Escherichia coli and Listeria innocua. The migration of CA and EU in the different food matrices was determined to analyse the food matrix effect on the film's antimicrobial effectiveness. The antimicrobial activity in foods was less remarkable than in in vitro test. Read More

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Safety Aspect of FL31 Strain and Antibacterial Mechanism of Its Hydroxylated Bacteriocin BacFL31 against .

Biomed Res Int 2018 1;2018:5308464. Epub 2018 Nov 1.

Laboratory of Microorganisms and Biomolecules, Center of Biotechnology of Sfax, University of Sfax, Road of Sidi Mansour Km 6, P.O. Box 1177, 3018, Tunisia.

In previous work we have isolated and identified a new strain called FL31. The active compound secreted by this strain, "BacFL31", has been purified and characterized. In the present study, safety aspect, assessed by microbiological and molecular tests, demonstrated that FL31 was susceptible to relevant antibiotics, free of hemolytic, gelatinase, DNase, and lipase activities. Read More

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November 2018
2 Reads

Heterologous expression of Thrombocidin-1 in Pichia pastoris: Evaluation of its antibacterial and antioxidant activity.

Microb Pathog 2018 Dec 1;127:91-96. Epub 2018 Dec 1.

Department of Food Science and Technology, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran.

The antimicrobial peptide Thrombocidin-1 (TC-1) isolated from human blood that derived from NAP-2 by deleting of two amino acids from C-terminal region. In this study, a C-terminal 6 _ His tagged recombinant TC-1 was expressed as a secreted peptide in Pichia pastoris, for the first time. The recombinant P. Read More

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December 2018
2 Reads

Listeriolysin O: a phagosome-specific cytolysin revisited.

Cell Microbiol 2018 Dec 4:e12988. Epub 2018 Dec 4.

Department of Molecular and Cell Biology, University of California, Berkeley, CA, United States of America.

Listeriolysin O (LLO) is an essential determinant of Listeria monocytogenes pathogenesis that mediates the escape of L. monocytogenes from host cell vacuoles, thereby allowing replication in the cytosol without causing appreciable cell death. As a member of the cholesterol-dependent cytolysin (CDC) family of pore-forming toxins, LLO is unique in that it is secreted by a facultative intracellular pathogen, whereas all other CDCs are produced by pathogens that are largely extracellular. Read More

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December 2018
3 Reads

Lactic Acid Bacteria as Biological Control of in Coalho Goat Cheese.

Food Technol Biotechnol 2018 Sep;56(3):431-440

Federal University of San Francisco Valley, Rod. BR 407, Km 12, Lote 543, Projeto de Irrigação Senador Nilo Coelho, s/nº, C1, BR-56.300-990 Petrolina, Pernambuco, Brazil.

The aim of this study is to investigate the bacterial population in coalho goat cheese produced in the semi-arid northeast region of Brazil, to analyse the antibiotic resistance profiles of the identified pathogenic bacteria, to detect the staphylococcal enterotoxin genes and to evaluate the addition of autochthonous lactic acid bacteria (LAB) with technofunctional properties for the control of growth. In the analysed samples, strains of (=11), spp. (=18), spp. Read More

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September 2018
3 Reads

Lactic Acid Bacteria from Argentinean Fermented Foods: Isolation and Characterization for their Potential Use as Starters for Fermentation of Vegetables.

Food Technol Biotechnol 2018 Sep;56(3):398-410

San Pablo Tucumán University, Av. Solano Vera and Villa Nougués, T4129XAK, Tucumán, Argentina.

Lactic acid bacteria (LAB) improve the organoleptic, nutritional and physicochemical properties of artisanal foods. In this study, we selected 31 fermented dairy and vegetable foods marketed in Tucumán city, Argentina, as sources of LAB for the production of pickles. Sixty-four isolates presumptively identified as strains were screened for relevant technological properties for production of fermented foods. Read More

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September 2018
1 Read

Solid coffee waste as alternative to produce carotenoids with antioxidant and antimicrobial activities.

Waste Manag 2018 Dec 16;82:93-99. Epub 2018 Oct 16.

Department of Biology, Federal University of Lavras, Lavras, MG, Brazil. Electronic address:

Special coffee production involves particular sensorial characteristics of the beverage as well as the production system of coffee beans, in particular environmental issues like water and solid waste disposal. Many countries around the world have problems with that waste disposal. The possibility to integrate the commodite production with suitable agricultural practices was the focus on this work using the solid waste to produce pigments by yeasts with biological activities. Read More

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December 2018

Characterisation of sludge produced by the agri-food industry and recycling options for its agricultural uses in a typical Mediterranean area, the Segura River basin (Spain).

Waste Manag 2018 Dec 19;82:118-128. Epub 2018 Oct 19.

Department of Soil and Water Conservation and Organic Waste Management, Centro de Edafología y Biología Aplicada del Segura, CSIC, PO Box 164, 30100 Murcia, Spain.

Agri-food sludge is both an environmental and economic problem, since companies must bear the costs of proper management as required by current disposal regulations. The aim of this work was to quantify the sludges in a typical Mediterranean area like the Segura River basin in Spain, which has a high concentration of agri-food businesses and intensive farming operations. Ultimately, we wanted to offer options for converting this "waste" into a "resource. Read More

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December 2018

Characterization of chitosan extracted from Mealworm Beetle (Tenebrio molitor, Zophobas morio) and Rhinoceros Beetle (Allomyrina dichotoma) and their antibacterial activities.

Int J Biol Macromol 2018 Nov 27. Epub 2018 Nov 27.

Department of Food and Nutrition, College of Human Ecology, Hanyang University, 222, Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea. Electronic address:

Chitin was isolated from the larvae, adult, and superworm of Mealworm Beetle and the larvae, pupa, and adult of Rhinoceros Beetle by deproteinization and demineralization. Chitin yields were 4.60, 8. Read More

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November 2018
1 Read

Microbial contamination of moose (Alces alces) and white-tailed deer (Odocoileus virginianus) carcasses harvested by hunters.

Food Microbiol 2019 Apr 14;78:82-88. Epub 2018 Sep 14.

Department of Food Hygiene and Environmental Health, Faculty of Veterinary Medicine, University of Helsinki, Finland.

Hunting is currently a very popular activity, and interest in game meat is increasing. However, only limited research is available on the bacterial quality and safety of moose (Alces alces) and white-tailed deer (Odocoileus virginianus) harvested by hunters. Poor hunting hygiene can spread bacteria onto the carcasses, and inadequate chilling of the carcasses may increase the bacterial load on the carcass surface. Read More

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April 2019
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Predicting growth of Listeria monocytogenes in fresh ricotta.

Food Microbiol 2019 Apr 17;78:123-133. Epub 2018 Oct 17.

Technical University of Denmark, National Food Institute (DTU Food), Kemitorvet, Building 202, 2800, Kgs. Lyngby, Denmark.

Challenge tests with eight brands of fresh ricotta showed rapid growth of Listeria monocytogenes and significant variability in physical-chemical characteristics. Thus, two cardinal parameters models were developed for the growth of L. monocytogenes in ricotta including, respectively, terms for temperature (Model 1) and temperature and pH (Model 2). Read More

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Histochemical localization of N-acetylhexosamine-binding lectin HOL-18 in Halichondria okadai (Japanese black sponge), and its antimicrobial and cytotoxic anticancer effects.

Int J Biol Macromol 2018 Nov 26;124:819-827. Epub 2018 Nov 26.

Laboratory of Glycobiology and Marine Biochemistry, Department of Life and Environmental System Science, Graduate School of NanoBiosciences, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan. Electronic address:

We studied localization and physiological activities of a lectin showing specific binding to N-acetylhexosamines, termed HOL-18, purified from Japanese black sponge (Halichondria okadai). Antiserum against the lectin was generated in rabbit and applied for immunohistochemical analyses. HOL-18 was expressed specifically around water pores and on spicules of sponge tissues. Read More

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November 2018
1 Read
2.858 Impact Factor

Flow Cytometric Assessment of the Morphological and Physiological Changes of and in Response to Natural Antimicrobial Exposure.

Front Microbiol 2018 14;9:2783. Epub 2018 Nov 14.

Leibniz Institute for Agricultural Engineering and Bioeconomy, Quality and Safety of Food and Feed, Potsdam, Germany.

Essential oils (EOs) or their components represent one of the most promising natural, safe, and feasible alternatives to prevent the growth of food-borne pathogens like and in food matrices. Although antimicrobial properties of EOs and their components are well-documented, limited and fragmented information is available on the changes induced by these compounds, even at sub-lethal concentrations, in the physiological properties of microbial cells. The aim of this study was to explore the morpho-physiological changes of Scott A and MG 1655 induced after 1 h exposure to different sub-lethal and lethal concentrations of citral, carvacrol, (E)-2-hexenal, and thyme EO. Read More

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November 2018
3 Reads

Chemical Constituents of the Marine-Derived Fungus sp. SCS-KFD66.

Mar Drugs 2018 Nov 26;16(12). Epub 2018 Nov 26.

Hainan Key Laboratory for Research and Development of Natural Product from Li Folk Medicine, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China.

Five new compounds named asperpenes A-C (⁻), 12,13-dedihydroversiol (), and methyl 6-oxo-3,6-dihydro-2-pyran-4-carboxylate (), along with 10 known compounds (⁻), were isolated from the fermentation broth of sp. SCS-KFD66 associated with a bivalve mollusk, , collected from Haikou Bay, China. The structures of the compounds, including the absolute configurations of their stereogenic carbons, were unambiguously determined by spectroscopic data, single-crystal X-ray diffraction analysis, and electronic circular dichroism (ECD) spectral analysis, along with quantum ECD calculations. Read More

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November 2018

Prevalence and Characterization of Listeria monocytogenes Isolated from Beef and Sheep Carcasses in Turkey with Characterization of Locally Isolated Listeriophages as a Control Measure.

J Food Prot 2018 Dec;81(12):2045-2053

3 General Directorate of Food and Control, Republic of Turkey Ministry of Food Agriculture and Livestock, 06400 Lodumlu, Ankara, Turkey.

Swab samples from cattle and sheep carcasses (120 of each) were tested for Listeria monocytogenes, and 120 slaughterhouse wastewater samples were tested for listeriophages over 12 months (10 samples per month) to note the seasonal distribution. L. monocytogenes and bacteriophage isolates were characterized, and the biocontrol of L. Read More

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December 2018

Genetic Diversity of Salmonella and Listeria Isolates from Food Facilities.

J Food Prot 2018 Dec;81(12):2082-2089

Center for Food Safety and Applied Nutrition, U.S. Food and Drug Administration, College Park, Maryland 20740, USA.

Food production-related facilities (farms, packing houses, etc.) are monitored for foodborne pathogens, and data from these facilities can provide a rich source of information about the population structure and genetic diversity of Salmonella and Listeria. This information is of both academic interest for understanding the evolutionary forces acting on these organisms and of practical interest to those responsible for controlling pathogens in facilities and to those analyzing data from facilities in the context of public health decision making. Read More

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December 2018

Bacteriophages: an overview of the control strategies against multiple bacterial infections in different fields.

J Basic Microbiol 2018 Nov 28. Epub 2018 Nov 28.

Department of Zoology, Abdul Wali Khan University, Garden Campus, Mardan, Pakistan.

Bacteriophages (phages/viruses) need host bacteria to replicate and propagate. Primarily, a bacteriophage contains a head/capsid to encapsidate the genetic material. Some phages contain tails. Read More

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November 2018
3 Reads

Microbial Contamination of Organically and Conventionally Produced Fresh Vegetable Salads and Herbs from Retail Markets in Southwest Germany.

Foodborne Pathog Dis 2018 Nov 28. Epub 2018 Nov 28.

Department of Safety and Quality of Fruit and Vegetables, Max Rubner-Institut, Federal Research Institute of Nutrition and Food , Karlsruhe, Germany .

A total of 189 samples of fresh products (leafy salads, ready-to-eat mixed salads, and fresh herbs) bought in retail in Southwest Germany were investigated for their microbiological quality and the presence of pathogenic bacteria, including Salmonella spp., Listeria monocytogenes, and presumptive Bacillus cereus. Total aerobic mesophilic plate counts (TAC) ranged from 5. Read More

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November 2018

PRL2 Controls Phagocyte Bactericidal Activity by Sensing and Regulating ROS.

Front Immunol 2018 13;9:2609. Epub 2018 Nov 13.

Department of Immunology and Microbiology, Shanghai Jiaotong University School of Medicine, Shanghai, China.

Although it is well-recognized that inflammation enhances leukocyte bactericidal activity, the underlying mechanisms are not clear. Here we report that PRL2 is sensitive to oxidative stress at inflamed sites. Reduced PRL2 in phagocytes causes increased respiratory burst activity and enhances phagocyte bactericidal activity. Read More

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November 2018

Effects of Bacteriophage P100 at Different Concentrations on the Structural Parameters of Listeria monocytogenes Biofilms.

J Food Prot 2018 Dec;81(12):2040-2044

1 Department of Food Hygiene and Technology, Veterinary Faculty, University of León, Campus de Vegazana, s/n, E-24071 León, Spain.

Because listeriosis is one of the deadliest foodborne diseases, controlling and eradicating Listeria monocytogenes biofilms is a serious challenge for food safety. Biofilms (24 h old) formed on polystyrene by a L. monocytogenes strain of food origin were exposed for a further 24 h to 12 different concentrations (from 10 to 10 PFU/mL) of the bacteriophage P100 (Listex P100). Read More

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December 2018
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