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Listeria monocytogenes

Fri, 05/17/2019 - 01:14
Publication date: Available online 15 May 2019Source: LWTAuthor(s): Mehran Moradi, Karim Mardani, Hossein TajikAbstractAnti-listeria and functional characteristics of postbiotics (metabolic byproducts of probiotics) of Lactobacillus acidophilus LA5 and L. casei 431 and L. salivarius were investigated in vitro, and in ground meat and whole milk. Antibacterial activity of all examined postbiotics...
Fri, 05/17/2019 - 01:12
Available online 14 May 2019 Author(s): Simone Mancini, Gisella Paci, Valentina Ciardelli, Barbara Turchi, Francesca Pedonese, Filippo FratiniAbstractToday, edible insects represent a hot topic as an emerging and eco-friendly source of protein. The mealworm (Tenebrio molitor L.) is among the most employed insects for human consumption and feed purposes. So far Listeria monocytogenes, have never...
Thu, 05/16/2019 - 20:00
A total of forty-four lactic acid bacteria (LAB) strains originally isolated from cattle feces and different food sources were screened for their potential probiotic features. The antimicrobial activity of all isolates was tested by well-diffusion assay and competitive exclusion on broth against Salmonella Montevideo, Escherichia coli O157:H7 and Listeria monocytogenes strain N1-002. Thirty-eight...
Thu, 05/16/2019 - 01:08
Publication date: Available online 13 May 2019Source: LWTAuthor(s): Yiming Feng, Luis Alberto Ibarra-Sánchez, Lily Luu, Michael J. Miller, Youngsoo LeeAbstractNisin-loaded zein microcapsules were prepared in a microfluidic chip using an internal phase separation method. The release profiles of nisin from the microcapsules were modified by varying nisin loading and flow rate during the...
Thu, 05/16/2019 - 01:08
Publication date: Available online 13 May 2019Source: LWTAuthor(s): Seyed Mohammad Bagher Hashemi, Reza Roohi, Mohammad Reza Mahmoudi, Daniel GranatoAbstractInactivation of Listeria monocytogenes (serotype 4 ab), Shigella sonnei, Byssochlamys fulva and Saccharomyces cerevisiae and the degradation of β-carotene and ascorbic acid in tangerine juice subjected to pulsed-thermosonication were modeled...
Wed, 05/15/2019 - 00:00
Following the persistent detection of Listeria monocytogenes in raw bovine milk sold through a vending machine, the 120 lactating cows of the herd producing the milk were subjected to bacteriological investigation. A single cow with subclinical mastitis (1.2–1.3 × 105 somatic cells/mL) and persistent L. monocytogenes excretion was detected. The cow was subjected to antimicrobial therapy, but L....
Sun, 05/12/2019 - 01:14
Publication date: Available online 9 May 2019Source: LWTAuthor(s): Yuanyuan Pan, Jun-Hu Cheng, Xiaoye Lv, Da-Wen SunAbstractA study was carried out to detect and assess possible sublethal injury and inactivation kinetics of Listeria monocytogenes suspended in phosphate-buffered saline (0.01 M PBS, pH = 7.4) by Ar/O2 plasma treatment. Results showed that both the germicidal effect and proportion...
Sun, 05/12/2019 - 01:13
Available online 11 May 2019 Author(s): Maricarmen Iñiguez-Moreno, Melesio Gutiérrez-Lomelí, María Guadalupe Avila-NovoaAbstractPathogens and spoilage microorganisms can develop multispecies biofilms on food contact surfaces; however, few studies have been focused on evaluated mixed biofilms of these microorganisms. Therefore this study investigated the biofilm development by pathogenic (Bacillus...
Fri, 05/10/2019 - 17:00
Marija Miljkovic, Sofija Jovanovic, Paula M. O’Connor, Nemanja Mirkovic, Branko Jovcic, Brankica Filipic, Miroslav Dinic, David John Studholme, Djordje Fira, Paul D. Cotter, Milan Kojic Bacteria active against multi-drug resistant pathogens, isolated direct selection of colonies from clover silage samples, produce zones of inhibition against two Gram-negative (Klebsiella pneumoniae Ni9 and...
Fri, 05/10/2019 - 05:03
Abstract Cantaloupes contaminated with Listeria and Salmonella have caused large scale of foodborne illness outbreaks in recent years. Prior research has shown that heat treatment can be used to reduce microbial contaminates on fruit surfaces. However, no study has evaluated the use of kitchen steamers for inactivating foodborne pathogens on cantaloupes. The purpose of this study was to test the...
Fri, 05/10/2019 - 05:03
Abstract Cantaloupes contaminated with Listeria and Salmonella have caused large scale of foodborne illness outbreaks in recent years. Prior research has shown that heat treatment can be used to reduce microbial contaminates on fruit surfaces. However, no study has evaluated the use of kitchen steamers for inactivating foodborne pathogens on cantaloupes. The purpose of this study was to test the...
Fri, 05/10/2019 - 01:15
Publication date: Available online 9 May 2019Source: LWTAuthor(s): Ângelo Luís, Luísa Pereira, Fernanda Domingues, Ana RamosAbstractAntioxidant and antibacterial edible films based on carboxymethyl xylan with licorice essential oil incorporated were successfully developed. The films were prepared by the casting method and characterized using FTIR. The grammage, thickness, contact angle,...
Wed, 05/08/2019 - 20:00
As WGS is increasingly used by food industry to characterize pathogen isolates, users are challenged by the variety of analysis approaches available, ranging from methods that require extensive bioinformatics expertise to commercial software packages. This study aimed to assess the impact of analysis pipelines (i.e., different hqSNP pipelines, a cg/wgMLST pipeline) and the reference genome...
Wed, 05/08/2019 - 01:15
Publication date: Available online 7 May 2019Source: LWTAuthor(s): Hang Qi, Yen-Con HungAbstractThis study was aimed to elucidate the mechanism of ferrous and alkaline activated persulfate in inactivating Escherichia coli O157:H7 and Listeria monocytogenes. A five-strain cocktail of each pathogen was treated with activated persulfate for 5 min. The treated pathogens were plated on both selective...
Wed, 05/08/2019 - 01:15
Available online 6 May 2019 Author(s): I. Barroso, V. Maia, P. Cabrita, J.V. Martínez-Suárez, L. BritoAbstractThe main goal of this work was to approach food industry conditions in the comparison of the susceptibility of biofilms of Listeria monocytogenes to the biocides benzalkonium chloride (BAC) and peracetic acid (PAA). Twelve isolates of L. monocytogenes, including nine well characterized...
Tue, 05/07/2019 - 20:00
Listeria monocytogenes is an important foodborne pathogen with a significant impact on public health worldwide. A great number ofMany outbreaks caused by L. monocytogenes hasve been reported, especially in the United States and European countries. However, listeriosis has isuncommonnot yet been included ina notifiable disease in China, and thus information on this infection has been scarce among...
Mon, 05/06/2019 - 20:00
Listeria monocytogenes is a globally notoriousfoodborne pathogen. This study aimed to qualitatively and quantitatively detect L. monocytogenes from meat and meat products in China and to establish their virulence profiles and population diversity. From 1212 meat and meat product samples, 362 (29.9%) were positive for L. monocytogenes. Serogroup analysis showed that the most prevalent serogroup of...
Fri, 05/03/2019 - 01:11
Available online 2 May 2019 Author(s): Petra Pasonen, Jukka Ranta, Heli Tapanainen, Liisa Valsta, Pirkko TuominenAbstractListeria monocytogenes causes severe consequences especially for persons belonging to risk groups. Finland is among the countries with highest number of listeriosis cases in the European Union. Although most reported cases appear to be sporadic and the maximum bacterial...
Thu, 05/02/2019 - 01:12
Available online 30 April 2019 Author(s): Barun Yadav, Ana Claudia Spinelli, Byju N. Govindan, Ying Y. Tsui, Lynn M. McMullen, M.S. RoopeshAbstractReady-to-eat (RTE) deli meat has been linked to several Listeria monocytogenes associated recalls. Recent studies demonstrated the potential antimicrobial effects of atmospheric cold plasma treatment on various food surfaces including RTE meat products...
Wed, 05/01/2019 - 01:12
Publication date: Available online 30 April 2019 Innovative Food Science & Emerging TechnologiesAuthor(s): Bibha Kumari, Brijesh K. Tiwari, Des Walsh, Tomás P. Griffin, Nahidul Islam, James G. Lyng, Nigel P. Brunton, Dilip K. RaiAbstractPulsed electric field (PEF) pre-treatment, at 2.8 kV/cm with 3000 pulses of 20 μs pulse-width, was applied on the brewer's spent grains (BSG) followed by...
Wed, 05/01/2019 - 01:10
Available online 30 April 2019 Author(s): J. Sindelar, K. Glass, R. Hanson, J.G. Sebranek, J. Cordray, J.S. DicksonAbstractPork bellies and boneless hams were smoked or cooked using unusually long processes to determine the impact of extended come-up times on the populations of Clostridium perfringens, Salmonella enterica, Staphylococcus aureus and Listeria monocytogenes. The products were...
Wed, 05/01/2019 - 00:00
Foodborne diseases arise from Listeria monocytogenes (L. monocytogenes) and Salmonella typhimurium (S. typhimurium) are global public health problems, influencing both developing and developed countries. Therefore, their rapid and accurate detection is of much concern in food safety and point-of-care diagnostics. In this study, a surface-enhanced Raman scattering (SERS)-based...
Mon, 04/29/2019 - 20:00
Integrative Analyses of Long Non-coding RNA and mRNA Involved in Piglet Ileum Immune Response to Clostridium perfringens Type C Infection Xiaoyu Huang1, Wenyang Sun1, Zunqiang Yan1, Hairen Shi1, Qiaoli Yang1, Pengfei Wang1, Shenggui Li1, Lixia Liu2, Shengguo Zhao1 and Shuangbao Gun1,3* 1College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China 2College of Life...
Mon, 04/29/2019 - 01:12
Publication date: Available online 27 April 2019Source: LWTAuthor(s): George Kwabena Afari, Haijie Liu, Yen-Con HungAbstractThe effects of pathogen inoculum concentration, pH and organic load of electrolyzed oxidizing (EO) water treatment on the culturability and viability of Listeria monocytogenes and Escherichia coli O157:H7 was examined. Inoculum concentrations (8, 6, and 4 log CFU/mL), EO...
Sat, 04/27/2019 - 01:14
Available online 25 April 2019 Author(s): Alberto Alía, Alicia Rodríguez, María J. Andrade, Francisco M. Gómez, Juan J. CórdobaAbstractThe combined effect of temperature, water activity (aw) and NaCl content, usually found in dry-cured ham, on the growth and expression of the virulence and stress-related genes of Listeria monocytogenes was evaluated in a dry-cured ham model system. The highest...
Sat, 04/27/2019 - 01:14
Available online 26 April 2019 Author(s): Teresa Aymerich, Maria Rodríguez, Margarita Garriga, Sara Bover-CidAbstractSmoked salmon is a highly appreciated delicatessen product. Nevertheless, this ready-to-eat (RTE) product is considered at risk for Listeria monocytogenes, due to both the prevalence and growth potential of this bacteria on the product. Biopreservation may be considered a mild and...
Fri, 04/26/2019 - 01:15
Publication date: Available online 24 April 2019 Innovative Food Science & Emerging TechnologiesAuthor(s): Mahdiyeh Hasani, Joanna Chudyk, Kayla Murray, Loong-Tak Lim, David Lubitz, Keith WarrinerAbstractAn advanced Oxidation process (AOP) based on using hydrogen peroxide, ozone and ultraviolet light (UV-C) was developed for inactivating mould spores (Penicillium expansum and Aspergillus...
Thu, 04/25/2019 - 20:00
Role of Starter Cultures on the Safety of Fermented Meat Products Marta Laranjo1*, Maria Eduarda Potes1,2 and Miguel Elias1,3 1ICAAM-Instituto de Ciências Agrárias e Ambientais Mediterrânicas, Universidade de Évora, Pólo da Mitra, Évora, Portugal 2Departamento de Medicina Veterinária, Escola de Ciências e Tecnologia, Universidade de Évora, Pólo...
Thu, 04/25/2019 - 06:40
Abstract Aims To evaluate ATP bioluminescence‐based hygiene monitoring systems under conditions relevant for fish processing environments. Methods and Results The ATP bioluminescence of fish fractions that are potentially present after insufficient cleaning of fish processing environments was determined. Different fractions and interfering substances representing the stages from slaughtering...
Wed, 04/24/2019 - 03:00
Journal of Food Protection, Volume 82, Issue 5, Page 869-877, May 2019.
Wed, 04/24/2019 - 03:00
Journal of Food Protection, Volume 82, Issue 5, Page 869-877, May 2019.
Sat, 04/20/2019 - 00:00
Abstract Sanguisorba officinalis L., one kind of perennial plants, has been widely distributed in southern Europe, northern Africa and China. The objective of the present work was to evaluate the antibacterial captivities of polyphenolic extract (PE) of S. officinalis L. on five pathogenic bacteria, including Gram-negative bacteria (Escherichia coli and Salmonella typhimurium)...
Fri, 04/19/2019 - 11:19
Abstract Aims The aim of this study was to develop a multiplex touchdown PCR (multiplex TD‐PCR) for rapid and simultaneous detection of four major foodborne pathogens to avoid mispriming and unwanted production during gene amplification. Touchdown PCR is the modified form of standard PCR, which enhances specificity, sensitivity. Methods and Results For this reason, a multiplex TD‐PCR assay...
Thu, 04/18/2019 - 10:05
Listeria monocytogenes is one of the most common foodborne pathogens. Poultry meat and products are of the main vehicles of pathogenic strains of L. monocytogenes for human. Poultry products are part of the regular diet of people and, due to nutrient content, more content of protein, and less content of fat, gain more attention. In comparison with red meat, poultry meat is more economical. So, it...
Wed, 04/17/2019 - 20:00
Salmonella enterica Growth Conditions Influence Lettuce Leaf Internalization Yulia Kroupitski1, Rachel Gollop1, Eduard Belausov2, Riky Pinto1 and Shlomo Sela (Saldinger)1* 1Microbial Food-Safety Research Unit, Department of Food Science, Agricultural Research Organization, The Volcani Center, Rishon LeZion, Israel 2Confocal Microscopy Unit, Institute of Plant Sciences, Agricultural Research...
Mon, 04/15/2019 - 11:36
Bacterial lipoproteins are globular proteins anchored to the extracytoplasmic surfaces of cell membranes through lipidation at a conserved N-terminal cysteine. Lipoproteins contribute to an array of important cellular functions for bacteria, as well as being a focal point for innate immune system recognition through binding to Toll-like receptor 2 (TLR2) heterodimer complexes. Although...
Sat, 04/13/2019 - 00:00
Abstract The main objective of the study is to assess a comparative antibacterial potential of three new bacteriocins produced by Pediococcus sp. through partial characterization and mode of action against some food spoilage bacteria. The bacteriocins from three different Pediococcus sp. viz. Pediococcus sp. LAB 33 (HQ185406), Pediococcus sp. LAB 41 (HQ185407), and Pediococcus...
Fri, 04/12/2019 - 01:12
Publication date: July 2019Source: LWT, Volume 109Author(s): Fernanda T. Carvalho, Bruno S. Vieira, Deyse C. Vallim, Larrayane A. Carvalho, Ricardo C.T. Carvalho, Rodrigo C.L. Pereira, Eduardo E.S. FigueiredoAbstractA trial was conducted to determine the genotypic and phenotypic profiles of Listeria monocytogenes (LM) isolated from chicken meat and chicken-meat processing environment in an export...
Fri, 04/12/2019 - 01:12
Available online 10 April 2019 Author(s): Bradley J. Taylor, Adam R. Quinn, A.I. KataokaAbstractFood manufacturers and distributors are tasked with applying science-based approaches and preventative controls to minimize the risk of foodborne illness from Listeria monocytogenes. Concerns regarding “no growth” low-moisture foods (LMFs), defined as ingredients and finished goods with a water...
Mon, 04/08/2019 - 20:00
Gamma Irradiation Influences the Survival and Regrowth of Antibiotic-Resistant Bacteria and Antibiotic-Resistance Genes on Romaine Lettuce Vaishali Dharmarha1, Giselle Guron2, Renee R. Boyer1, Brendan A. Niemira3, Amy Pruden2, Laura K. Strawn1 and Monica A. Ponder1* 1Department of Food Science and Technology, Virginia Tech, Blacksburg, VA, United States 2Department of Civil and Environmental...
Mon, 04/08/2019 - 01:10
Publication date: Available online 7 April 2019Source: LWTAuthor(s): Nitin Dhowlaghar, Qian Shen, Ramakrishna Nannapaneni, Wes Schilling, Aditya SamalaAbstractThe purpose of this study was to determine the survival of acid stress adapted Listeria monocytogenes Bug600 and ScottA cells in various lethal concentrations of disinfectants in broth and water models. Acid stress adapted cells had...
Sun, 04/07/2019 - 01:14
Available online 5 April 2019 Author(s): Zahra Alizadeh, Shima Yousefi, Hamed AhariAbstractStarch nanocrystal (S-NC) was produced after sulfuric acid hydrolysis of potato starch granules and then characterized by laser diffraction particle size analyzer, scanning electron microscopy (SEM) and X-ray diffraction (XRD). Response surface methodology (RSM) was applied to optimize S-NC (2–10%)...
Sat, 04/06/2019 - 01:12
Available online 4 April 2019 Author(s): Imen Trabelsi, Sirine Ben Slima, Naourez Ktari, Mehdi Triki, Rania Abdehedi, Wafa Abaza, Hafedh Moussa, Asehraou Abdeslam, Riadh Ben SalahAbstractThe aim of this work was to evaluate the effect of different concentrations of probiotic strain Lactobacillus plantarum TN8 on the quality and safety of raw minced beef after 10 days of refrigerated storage. The...
Fri, 04/05/2019 - 01:14
Publication date: Available online 4 April 2019Source: LWTAuthor(s): Wilbert Long, Majher I. Sarker, Bassam A. Annous, George C. PaoliAbstractThis study evaluated the efficacy of alkyltrimethylammonium-bromide (ATMB) and chlorhexidine-digluconate (CDG) to reduce pathogens of meat safety concerns in solution and on hides. In solution, ATMB at 50 and 250 ppm reduced individual cocktails of...

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