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Listeria monocytogenes

Wed, 07/17/2019 - 00:00
The inhibitory effect of lactose oxidase on the growth of foodborne pathogens and spoilage microorganisms associated with dairy products was evaluated through an overlay inhibition assay. Lactose oxidase generates hydrogen peroxide via lactose oxidation into lactobionic acid. Escherichia coli O157:H7, Listeria monocytogenes, Salmonella enterica ser. Typhimurium, Staphylococcus aureus, Pseudomonas...
Tue, 07/16/2019 - 03:00
Journal of Food Protection, Volume 82, Issue 8, Page 1320-1325, August 2019.
Mon, 07/15/2019 - 01:05
Available online 13 July 2019 Author(s): Qingli Dong, Wenmin Zhang, Liang Guo, Hongmei Niu, Qing Liu, Xiang WangAbstractTo verify the effect of Lactobacillus plantarum subsp. plantarum CICC 6257 individually (T1) and in combination with low O2-MAP (3% O2 /10% CO2 /87% N2) (T2) on the pathogenic potential of Listeria monocytogenes in cabbage stored at 10 °C, the potential for growth, the ability...
Sun, 07/14/2019 - 13:23
Abstract The present study tested the antibacterial activity, expressed as minimum bactericidal concentration (MBC), of zinc oxide nanoparticles (ZnO‐NPs), copper oxide nanoparticles (CuO‐NPs) and their combination with or without rosemary, clove or cinnamon extract against Escherichia coli O157:H7 and Listeria monocytogenes. The NPs were characterized by scanning electron microscopy. The sizes...
Sat, 07/13/2019 - 01:05
Publication date: Available online 11 July 2019Source: Author(s): Olga S. Papadopoulou, Anthoula A. Argyri, Evangelos Varzakis, Marianthi Sidira, Yiannis Kourkoutas, Alex Galanis, Chrysoula Tassou, Nikos G. ChorianopoulosAbstractUHT bovine milk (low-fat) was inoculated with a starter culture and one adjunct strain, Lactobacillus plantarum 2035 or Lb. plantarum T571, with probiotic potential, and...
Fri, 07/12/2019 - 01:04
Available online 11 July 2019 Author(s): Davy Verheyen, Maria Baka, Simen Akkermans, Torstein Skåra, Jan F. Van ImpeAbstractThe development of more accurate predictive models that describe the microbial kinetics of mild thermal treatments of foods requires knowledge concerning the influence of food microstructure and initial cell conditions on foodborne pathogens’ inactivation kinetics. The...
Fri, 07/12/2019 - 01:04
Publication date: October 2019Source: LWT, Volume 113Author(s): Alejandra Londero, Magdalena Costa, Lucía Galli, Victoria Brusa, Luciano Linares, Mónica Prieto, Gerardo LeottaAbstractWe characterized L. monocytogenes strains isolated from ground beef (n = 40) and butcher shop environmental (n = 99) samples before and after implementing improvement actions. Strains were serotyped and subtyped by...
Mon, 07/08/2019 - 20:00
Listeria monocytogenes the causative agent of listeriosis is an important public health concern and food safety challenge. Increased tolerance of this bacterium to benzalkonium chloride (BC), an antibacterial agent widely used in industrial settings, is a growing issue. Plasmid pLMST6 harbouring the gene of the multidrug efflux pump protein EmrC has been recently linked to enhanced BC tolerance...
Mon, 07/08/2019 - 01:04
Available online 5 July 2019 Author(s): Ji-Hoon Kang, Kyung Bin SongAbstractThis study was conducted to investigate the antibacterial activity of the noni fruit extract (NFE) against Listeria monocytogenes (ATCC, 19111 and 19115) and assess its applicability for the washing of fresh-cut produce. Based on the results of the disc diffusion test, L. monocytogenes (ATCC, 19111 and 19115) was...
Sat, 07/06/2019 - 01:07
Available online 3 July 2019 Author(s): Astrid Caroline Muniz da Silva, Pâmela de Oliveira Pena, Sérgio Bertelli Pflanzer, Maristela da Silva do NascimentoAbstractThe objective of this study was to evaluate the effect of different dry aging temperatures on the behavior of Listeria innocua used as a surrogate of L. monocytogenes. The process was performed in boneless loin pieces for up to 42 days...
Wed, 07/03/2019 - 20:00
Recent research has proven the ability of cold atmospheric plasma (CAP) for assuring food safety. A more flexible and transportable alternative is the use of plasma activated liquids (PAL), which are also known to have antimicrobial properties. However, within the context of food safety, little is known on its potential regarding decontamination. This research therefore focusses on identifying...
Wed, 07/03/2019 - 03:10
Background: Many bacteria transport cellobiose via a phosphoenolpyruvate:carbohydrate phosphotransferase system (PTS). In Listeria monocytogenes, two pairs of soluble PTS components (EIIACel1/EIIBCel1 and EIIACel2/EIIBCel2) and the permease EIICCel1 were suggested to contribute to cellobiose uptake. Interestingly, utilization of several carbohydrates, including cellobiose, strongly represses...
Tue, 07/02/2019 - 20:00
The aim of this study was to quantify the influence of temperature on pHmin-values of L. monocytogenes as used in cardinal parameter growth models and thereby improve the prediction of growth for this pathogen in food with low pH. Experimental data for L. monocytogenes growth in broth at different pH-values and at different constant temperatures were generated and used to determined pHmin-values...
Tue, 07/02/2019 - 07:28
Abstract Nowadays, Listeria monocytogenes continues to be a major health issue. Therefore, improvements in the speed and reliability of its detection are still needed. In the present study, the combination of real‐time Recombinase Polymerase Amplification (qRPA) with immunomagnetic separation (IMS) is described. The proposed methodology was tested against a real‐time PCR method, and was...
Tue, 07/02/2019 - 01:02
Publication date: Available online 29 June 2019Source: LWTAuthor(s): J. Arévalo Camargo, K. Murray, K. Warriner, W. LubitzAbstractAir flow characteristics and decontamination efficacy are investigated within a forced-air ozone reactor designed to control Listeria monocytogenes on apple fruit. The commercial reactor introduced an air-ozone mix through a column of apples (540 kg contained within...
Tue, 07/02/2019 - 01:02
Available online 1 July 2019 Author(s): Marie Limoges, Catherine DonnellyAbstractThe U.S. Food and Drug Administration's (FDA) 2015 Domestic and Imported Cheese and Cheese Products Compliance Program Guidelines (CPG) (U.S. FDA, 2015) consider cheeses to be adulterated if non-toxigenic Escherichia coli levels of greater than 10 most probable number per gram (MPN/g) and less than 100 MPN/g are...
Mon, 07/01/2019 - 11:00
Detection of pathogens is crucial in food production areas. While it is well established, swabbing as a state-of-the-art sampling method offers several drawbacks with respect to yield, standardization, overall handling, and long-term monitoring. This led us to develop and evaluate a method that is easier to use at a lower cost and that should be at least as sensitive. After evaluating sundry...
Mon, 07/01/2019 - 01:08
Publication date: Available online 29 June 2019 Innovative Food Science & Emerging TechnologiesAuthor(s): Veli Gök, Simge Aktop, Mehmet Özkan, Oktay TomarAbstractIn this study the effectiveness of cold atmospheric plasma (CAP) in inactivating two bacterial pathogens on inoculated pastırma was investigated. In addition, the effect of this treatment on the total mesophilic aerobic bacteria (...
Mon, 07/01/2019 - 01:05
Available online 30 June 2019 Author(s): Linshu Lan, Ru Zhang, Xianglian Zhang, Hui ShiAbstractFoodborne pathogens can survive as the state of sublethal injury in adverse environments and recover physiological function and virulence under suitable conditions. Slightly acidic electrolyzed water (SAEW) is a non-thermal treatment to decontaminate in food industry and can induce sublethal injury....
Sun, 06/30/2019 - 01:12
Available online 29 June 2019 Author(s): Veronica Martinez-Rios, Marie Østergaard Jørgensen, Ioulia Koukou, Elissavet Gkogka, Paw DalgaardAbstractThe aim of this study was to develop and validate a growth and growth boundary model with terms for melting salts to predict growth of Listeria monocytogenes in spreadable processed cheese. Cardinal parameter terms for phosphate salts and citric acid...
Fri, 06/28/2019 - 12:48
Summary Advances in whole‐genome sequencing (WGS) technologies have document genetic diversity and epidemiology of the major foodborne pathogen Listeria monocytogenes (Lm) in Europe and North America, but data concerning South America is scarce. Here we examined the population structure and genetic diversity of the major foodborne pathogen (Lm) collected in Brazil. Based on core genome multilocus...
Fri, 06/28/2019 - 12:48
Summary Advances in whole‐genome sequencing (WGS) technologies have document genetic diversity and epidemiology of the major foodborne pathogen Listeria monocytogenes (Lm) in Europe and North America, but data concerning South America is scarce. Here we examined the population structure and genetic diversity of the major foodborne pathogen (Lm) collected in Brazil. Based on core genome multilocus...
Thu, 06/27/2019 - 05:08
Abstract This study was focused on determining survival and growth characteristics of Listeria monocytogenes and Staphylococcus aureus on conventional (16.7 mg of sodium/g) and low‐sodium (10.7 mg of sodium/g) bacon. The two types of bacon were inoculated with the either L. monocytogenes or S. aureus stored at 4, 12, or 25°C for up to 7 days. Populations of L. monocytogenes and S. aureus did not...
Thu, 06/27/2019 - 05:08
Abstract This study was focused on determining survival and growth characteristics of Listeria monocytogenes and Staphylococcus aureus on conventional (16.7 mg of sodium/g) and low‐sodium (10.7 mg of sodium/g) bacon. The two types of bacon were inoculated with the either L. monocytogenes or S. aureus stored at 4, 12, or 25°C for up to 7 days. Populations of L. monocytogenes and S. aureus did not...
Thu, 06/27/2019 - 01:07
Available online 25 June 2019 Author(s): Zijin Zhou, Sophie Zuber, Matteo Campagnoli, Thierry Putallaz, Frank Devlieghere, Mieke UyttendaeleAbstractThe microbial safety of black peppercorns (Piper nigrum L.) has raised concerns due to increasing numbers of reported foodborne outbreaks and food safety alerts. To avoid quality degradation caused by excessive thermal processing, mild steaming...
Thu, 06/27/2019 - 01:07
Available online 22 June 2019 Author(s): Sarengaowa, Wenzhong Hu, Ke Feng, Zhilong Xiu, Aili Jiang, Ying LaoAbstractIn this study, the antimicrobial mechanism of thyme essential oil (EO) against Listeria monocytogenes was investigated at the protein level using tandem mass tag-based quantitative proteomic analysis. The proteomic profiles of LM with 2 log CFU/ml reduction after thyme EO treatment...
Wed, 06/26/2019 - 01:12
Available online 24 June 2019 Author(s): Elis Regina Gomes Alfama, Claudia Titze Hessel, Susana de Oliveira Elias, Cris Rocha Pinto Magalhães, Mariângela Flores Terra Santiago, Margarida Anschau, Eduardo Cesar TondoAbstractFood distribution temperature is one of the most important factors to be controlled in order to prevent foodborne illnesses in food services. In this study, 339,548 records of...
Tue, 06/25/2019 - 15:58
Abstract In this study, an active antibacterial packaging film was developed by coating a polyethylene terephthalate/polyvinylidene chloride/retort casting polypropylene (PPR) plastic multilayer film with plantaricin BM‐1 and chitosan. The characteristics of the active packaging film and its antibacterial effect for chilled meat preservation were evaluated. Our results indicated that the barrier...
Sun, 06/23/2019 - 11:53
The morphological structure of potato starch‐based biodegradable (PSBB) films with virgin coconut oil (VCO). Increasing VCO concentrations caused a rise in the light transmittance of the films from 2.13 to 4.79 mm−1 and a decrease in water vapour transmittance from 6.77 to 2.12 (10−5 GPa−1 h−1 m−1). Scanning electron microscopy showed that the surface of the film became smoother as VCO...
Sun, 06/23/2019 - 01:07
Available online 21 June 2019 Author(s): Emalie Thomas-Popo, Aubrey Mendonca, James Dickson, Angela Shaw, Shannon Coleman, Aura Daraba, Armitra Jackson-Davis, Floyd WoodsAbstractThe antimicrobial effectiveness of isoeugenol against Escherichia coli O157:H7, Salmonella enterica, and Listeria monocytogenes in refrigerated (4 °C) pineapple juice (PJ) with added 0.5% (w/v) yucca extract (YEX) was...
Thu, 06/20/2019 - 01:12
Available online 19 June 2019 Author(s): Yujia Zhao, Januana S. Teixeira, Marleny D.A. Saldaña, Michael G. GänzleAbstractContamination with spoilage organisms and Listeria monocytogenes are major concerns for quality and safety of cooked ready-to-eat (RTE) meat products. Thus, the objective of this study was to investigate the use of antimicrobial starch packaging films to control competitive...
Wed, 06/19/2019 - 01:16
Available online 17 June 2019 Author(s): Zilei Zhang, Danlei Liu, Yalong Bai, Yan Cui, Dapeng Wang, Xianming ShiAbstractDNA aptamers are promising candidates for bio-recognition assays due to their accumulation in bacterial cells. This feature can be used to identify specific pathogens in food samples. However, the conventional process of aptamer screening by randomly picking bacterial plate...
Wed, 06/19/2019 - 01:16
Available online 18 June 2019 Author(s): Nikhil Kumar Mahnot, Charu Lata Mahanta, Brian E. Farkas, Kevin M. Keener, N.N. MisraAbstractIn the current work we evaluated the effect of atmospheric cold plasma (ACP) generated in air and M65 (65% O2, 30% CO2, 5%N2) as working gases for inactivation of Escherichia coli and Listeria monocyotogenes in tender coconut water. A 5 log10 reduction in the...
Wed, 06/19/2019 - 01:07
Publication date: September 2019Source: LWT, Volume 112Author(s): Mónica Dávila-Rodríguez, Aurelio López-Malo, Enrique Palou, Nelly Ramírez-Corona, María Teresa Jiménez-MunguíaAbstractNanoemulsions formulated with essential oils (EOs) can be applied to bacteria found on fresh food, however, scarce information is still available. This study aimed to evaluate the antimicrobial activities of EOs of...
Mon, 06/17/2019 - 20:00
Peroxyacetic acid (PAA) is widely applied in fresh apple packing facilities to reduce foodborne pathogens on fresh apples. However, there is limited data regarding its practical efficacy against Listeria monocytogenes on fresh apples. This study evaluated the antimicrobial activity of PAA against L. monocytogenes on fresh apples applicable to current industry practice, and further examined...
Mon, 06/17/2019 - 13:13
Abstract Aims The control of Listeria monocytogenes biofilm formation using lactocin AL705 bacteriocin at sub‐MICs through an anti‐quorum sensing strategy, was preliminarily investigated. Methods and Results The screening for biofilm formation of different Listeria species at 10 °C allowed selecting L. monocytogenes FBUNT for its use as biofilm producer. Minimum inhibitory concentration (MIC)...
Sat, 06/15/2019 - 01:07
Available online 12 June 2019 Author(s): Hang Qi, Yen-Con HungAbstractActivated persulfate could be an alternative sanitizer for fresh produce decontamination. This study is the first in reporting the potential of activated persulfate in reducing Escherichia coli O157:H7 and Listeria monocytogenes from romaine lettuce surface. Ferrous sulfate and sodium hydroxide were used as the activators. Both...
Thu, 06/13/2019 - 10:28
Alginate‐based edible coating acts as a carrier enabling the sustained release of thyme oil to the surface of the fresh‐cut apples, inhibiting the growth of Listeria monocytogenes, Salmonella Typhimurium, Staphylococcus aureus and Escherichia coli O157:H7 inoculated onto fresh‐cut apples. Summary In this study, the inhibition of an alginate‐based edible coating (EC) containing thyme oil (0.05...
Thu, 06/13/2019 - 10:28
Alginate‐based edible coating acts as a carrier enabling the sustained release of thyme oil to the surface of the fresh‐cut apples, inhibiting the growth of Listeria monocytogenes, Salmonella Typhimurium, Staphylococcus aureus and Escherichia coli O157:H7 inoculated onto fresh‐cut apples. Summary In this study, the inhibition of an alginate‐based edible coating (EC) containing thyme oil (0.05...
Thu, 06/13/2019 - 01:17
Publication date: Available online 11 June 2019Source: Author(s): Virginia M. Guitián, Carolina Ibarguren, Cecilia M. Soria, Paula Hovanyecz, Claudia Banchio, Carina M. AudisioAbstractBacteriocins synthesised by lactic acid bacteria are natural alternatives to control Listeria monocytogenes, a foodborne pathogen. Additionally, antimicrobial biopolymer coatings have significant benefits in food...
Wed, 06/12/2019 - 01:13
Available online 10 June 2019 Author(s): Isabella de Medeiros Barbosa, Erika Tayse da Cruz Almeida, Lúcio Roberto Cançado Castellano, Evandro Leite de SouzaAbstractThis study evaluated whether the pre-exposure (24, 48 and 72 h) to sublethal conditions caused by acetic acid (AA), lactic acid (LA), sodium chloride (NaCl) or potassium chloride (KCl) could induce increased cross-tolerance to the...
Wed, 06/12/2019 - 01:13
Available online 11 June 2019 Author(s): Yoon-Jae Jeong, Jae-Won HaAbstractThis study was conducted to evaluate the antimicrobial effect of the combined treatment of UV-A radiation (UVA) and acetic acid (AA) against Escherichia coli O157:H7, Salmonella Typhimurium, and Listeria monocytogenes on spinach leaves and to investigate the effect of this combined treatment on product quality. Spinach...
Wed, 06/12/2019 - 01:13
Publication date: September 2019Source: LWT, Volume 112Author(s): Viridiana Cortés-Rodríguez, Lidia Dorantes-Alvarez, Humberto Hernández-Sánchez, Norma Paniagua-Castro, Gerardo Aparicio-Ozores, Edgar Oliver López-Villegas, María de Jesús Perea-FloresAbstractThe aim of this study was to investigate the effect of mixtures of sodium cinnamate, coumarate, caffeate and ferulate against L....
Wed, 06/12/2019 - 01:13
Publication date: September 2019Source: LWT, Volume 112Author(s): Dong-Gyun Yim, Jin-Kyu Seo, Hyeon-Woong Yum, Md Ashrafuzzaman Zahid, Jun-Young Park, Rashida Parvin, Jonghyun Go, Sang-Keun Jin, Ok-Kyung Koo, Han-Sul YangAbstractThe effects of C. sappan L. extract on oxidative stability, microbiological quality, and color attributes in sausages were examined. Pork sausages were prepared for four...
Sun, 06/09/2019 - 20:00
Internalins are surface proteins that are utilized by Listeria monocytogenes to facilitate its invasion into human intestinal epithelial cells. The expression of a full-length InlA is one of essential virulence f...
Sun, 06/09/2019 - 01:14
Available online 7 June 2019 Author(s): Jiajing Guo, Zhipeng Gao, Gaoyang Li, Fuhua Fu, Zengenni Liang, Hui Zhu, Yang ShanAbstractListeria monocytogenes (L. monocytogenes) is an important foodborne pathogen which may cause listeriosis and poses potential risks to human health. The aim of this study was to estimate the efficacy of essential oil from Citrus Changshan-huyou Y.B. Chang (Huyou) on...

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