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Salmonella

Thu, 05/16/2019 - 11:01
Little is known about the abiotic factors contributing to the preharvest persistence of Salmonella in tomato tissues. Therefore, we investigated the effects of specific environmental conditions and contamination methods on the persistence and dissemination of Salmonella enterica subsp. enterica serotype Typhimurium (JSG626) in tomato plants. When plants were sprayed on the leaves with a JSG626-...
Wed, 05/15/2019 - 01:11
Available online 13 May 2019 Author(s): Yuqiao Jin, Juming TangAbstractSalmonella enterica is a major cause of foodborne pathogen contamination in the United States. The heat resistance of Salmonella increases as aw decreases, leading to a significant challenge in the design of thermal processes. The aluminum thermal death time (TDT) cell is a common experimental tool to study the isothermal...
Wed, 05/15/2019 - 00:00
The rapid and sensitive detection of foodborne pathogens is one of the most important issues in food safety control. In this work, we developed a novel fluorescence immunoassay method for the sensitive detection of Salmonella choleraesuis. The method uses the fluorescent signals of histone-ds-poly(AT)-templated copper nanoparticles (His-pAT CuNP) as signal transducers and glucose oxidase as an...
Tue, 05/14/2019 - 17:00
Jiayu Liu, Ibrahem Jasim, Zhenyu Shen, Lu Zhao, Majed Dweik, Shuping Zhang, Mahmoud Almasri An impedance based microfluidic biosensor for simultaneous and rapid detection of Salmonella serotypes B and D in ready-to-eat (RTE) Turkey matrix has been presented. Detection of Salmonella at a concentration as low as 300 cells/ml with a total detection time of 1 hour has been achieved. The sensor has...
Sun, 05/12/2019 - 01:14
Publication date: August 2019Source: LWT, Volume 111Author(s): Chiara Rossi, Clemencia Chaves-López, Sonja Smole Možina, Carla Di Mattia, Stefania Scuota, Ida Luzzi, Teja Jenič, Antonello Paparella, Annalisa SerioAbstractSalmonella is a foodborne pathogen able to adhere and persist on biotic and abiotic surfaces, including vegetables, which are even more linked to foodborne outbreaks. In this...
Sun, 05/12/2019 - 00:00
Salmonella is a type of serious foodborne pathogenic bacterium that threatens the food safety worldwide. In this study, a fluorescence probe-based recombinase polymerase amplification analytical method (exo RPA) was developed for the sensitive and specific detection of Salmonella enterica (S. enterica). The primers and probe for this method were designed based on the iroB gene...
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...
Thu, 05/09/2019 - 01:16
Available online 8 May 2019 Author(s): Jéssica B. Portela, Pablo T. Coimbra, Leandro P. Cappato, Verônica O. Alvarenga, Rodrigo B.A. Oliveira, Karen S. Pereira, Denise.R.P. Azeredo, Anderson S. Sant’ Ana, Janaina S. Nascimento, Adriano G. CruzAbstractThis study aimed to study the behavior of Salmonella submitted to domestic microwave through the use of predictive microbiology. The results showed...
Wed, 05/08/2019 - 01:15
Available online 6 May 2019 Author(s): Rafael D. Chaves, Zafeiro Aspridou, Anderson S. Sant'Ana, Konstantinos P. KoutsoumanisAbstractThe present work investigates the effect of chlorine stress on the subsequent growth behavior of individual Salmonella cells. A time-lapse microscopy method was used which allowed to evaluate the effect of chlorine on the division times of Salmonella individual...
Mon, 05/06/2019 - 20:00
Salmonella is a major foodborne pathogen which causes widespread contamination and infection worldwide. Salmonella Typhimurium is one of the leading serovars responsible for human and animal salmonellosis, globally. The increasing rate of antibiotic resistance in Salmonella Typhimurium poses a significant global concern, and an improved understanding of the distribution of antibiotic resistance...
Mon, 05/06/2019 - 20:00
Salmonella enterica serovar 4,[5],12:i:- (S. 4,[5],12:i:-) is an emerging foodborne pathogen causing salmonellosis in humans and animals. Probiotic Lactobacillus rhamnosus GG (LGG) is an effective strategy for controlling enteric infections through maintaining gut microbiota homeostasis and regulating the intestinal innate immune response. Here, LGG was orally administrated to newly weaned...
Mon, 05/06/2019 - 01:18
Available online 4 May 2019 Author(s): Juliana O. Moraes, Ellen A. Cruz, Ítalo Pinheiro, Tereza C.M. Oliveira, Verônica Alvarenga, Anderson S. Sant’Ana, Marciane MagnaniAbstractThis study assessed the adhesion and formation of biofilm by five Salmonella enterica strains (S. Enteritidis 132, S. Infantis 176, S. Typhimurium 177, S. Heidelberg 281 and S. Corvallis 297) on polypropylene (PP) and...
Thu, 05/02/2019 - 11:02
Municipal wastewater includes human waste that contains both commensal and pathogenic enteric microorganisms, and this collective community microbiome can be monitored for community diseases. In a previous study, we assessed the salmonellosis disease burden using municipal wastewater from Honolulu, Hawaii, which was monitored over a 54-week period. During that time, a strain of Salmonella...
Thu, 05/02/2019 - 11:02
Untreated biological soil amendments of animal origin (BSAAO) are commonly used as biological fertilizers but can harbor foodborne pathogens like Salmonella enterica, leading to potential transfer from soils to fruits and vegetables intended for human consumption. Heat-treated poultry pellets (HTPP) can provide produce growers with a slow-release fertilizer with a minimized risk of pathogen...
Thu, 05/02/2019 - 01:14
Available online 1 May 2019 Author(s): Zhuoyang Li, Rongxian Guo, Fan Wang, Shizhong Geng, Xilong Kang, Chuang Meng, Dan Gu, Xinan Jiao, Zhiming PanAbstractEgg safety and quality is a long-standing concern for producers and consumers. Salmonella enterica serovar Enteritidis (Salmonella Enteritidis) is the prevalent egg-product-related foodborne pathogen. The treatment with organic acids,...
Thu, 05/02/2019 - 01:12
Available online 30 April 2019 Author(s): Lina Merino, Fernando M. Trejo, Graciela De Antoni, Marina A. GolowczycAbstractLactic acid bacteria (LAB) exert a strong antagonistic activity against many microorganisms including food spoilage organisms and may be used as an alternative to control biofilm formation of pathogens in food industries. The objective of this work was to investigate the...
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...
Tue, 04/30/2019 - 09:59
Abstract Use of bacteria in cancer therapy, despite being considered as a potent strategy, has not really picked up the way other methods of cancer therapies have evolved. However, in recent years, the interest on use of bacteria to kill cancer cells has renewed considerably. The standard and widely followed strategies of cancer treatment often fail either due to the complexity of tumor biology...
Mon, 04/29/2019 - 01:12
Publication date: Available online 27 April 2019Source: LWTAuthor(s): Samet Ozturk, Shuxiang Liu, Jie Xu, Juming Tang, Jinru Chen, Rakesh K. Singh, Fanbin KongAbstractThis study aimed to evaluate the feasibility of using Enterococcus faecium NRRL B-2354 (E. faecium) as a surrogate of Salmonella enterica Enteritidis PT30 (S. Enteritidis PT30), validate radio frequency (RF) heating in pasteurizing...
Sat, 04/27/2019 - 01:14
Available online 26 April 2019 Author(s): Emalie Thomas-Popo, Aubrey Mendonça, N.N. Misra, Allison Little, Zifan Wan, Rkia Moutiq, Shannon Coleman, Kevin KeenerAbstractBacterial foodborne disease outbreaks implicating raw wheat products have focused much attention on decontaminating wheat grains used for manufacturing flour and other milled products. The present study investigated the...
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...
Tue, 04/23/2019 - 20:00
Impact of ROS-Induced Damage of TCA Cycle Enzymes on Metabolism and Virulence of Salmonella enterica serovar Typhimurium Janina Noster1†, Marcus Persicke2, Tzu-Chiao Chao3, Lena Krone1, Bianca Heppner1, Michael Hensel1* and Nicole Hansmeier1,3,4* 1Abteilung Mikrobiologie, Universität Osnabrück, Osnabrück, Germany 2Microbial Genomics and Biotechnology, Center for...
Tue, 04/23/2019 - 15:00
Abstract Fresh produce are vulnerable to pathogens during pre‐ and postharvest stages. Most fresh vegetable and fruits are consumed directly or merely washed with chlorine. We investigated two emerging decontamination technologies, pulse light (PL) and ultraviolet (UV), in combination with washing (referred as water‐assisted PL [WPL] and water‐assisted UV [WUV]). Blueberries, grape tomatoes, and...
Mon, 04/22/2019 - 17:00
Janina Noster, Tzu-Chiao Chao, Nathalie Sander, Marc Schulte, Tatjana Reuter, Nicole Hansmeier, Michael Hensel Intracellular Salmonella enterica serovar Typhimurium (STM) deploy the Salmonella Pathogenicity Island 2-encoded type III secretion system (SPI2-T3SS) for the massive remodeling of the endosomal system for host cells. This activity results in formation of an extensive interconnected...
Mon, 04/22/2019 - 01:13
Available online 20 April 2019 Author(s): Xueran Mei, Xiwen Zhai, Changwei Lei, Xiaolan Ye, Zhuangzhuang Kang, Xuan Wu, Rong Xiang, Yulong Wang, Hongning WangAbstractSalmonella strains are major foodborne pathogens for the animals and humans, presenting a significant threat to food safety and public health worldwide. The rapid and accurate diagnosis of Salmonella infection is required for...
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...
Tue, 04/16/2019 - 06:51
Abstract Aims The aim of this study was the molecular identification of Salmonella enterica serovar Infantis isolated from poultry samples and their antimicrobial resistance and virulence profiling. Methods and Results A total of 149 isolates, belonging to genus Salmonella, originally isolated from 340 suspected poultry post mortem specimens reported by us earlier were preliminary identified...
Mon, 04/15/2019 - 15:00
Abstract The role of free‐ranging wildlife in the epidemiology of enteropathogens causing clinical illness in humans and domestic animals is unclear. Salmonella enterica and anti‐microbial resistant bacteria have been detected in the faeces of raccoons (Procyon lotor), but little is known about the carriage of these bacteria in other sympatric meso‐mammals. Our objectives were to: (a) report the...
Fri, 04/12/2019 - 01:12
Available online 11 April 2019 Author(s): Yu Hou, Gaozhe Cai, Lingyan Zheng, Jianhan LinAbstractThe key to prevent and control the spread of foodborne diseases is rapid screening and early warning of pathogenic bacteria in foods. In this study, a microfluidic biosensor using magnetic nanoparticles (MNPs) and catalases was developed for rapid and sensitive detection of Salmonella typhimurium....
Thu, 04/11/2019 - 20:00
Antimicrobial Resistance Diversity Suggestive of Distinct Salmonella Typhimurium Sources or Selective Pressures in Food-Production Animals Kate C. Mellor1,2*, Liljana Petrovska3, Nicholas R. Thomson2,4, Kate Harris3, Stuart W. J. Reid1 and Alison E. Mather5*† 1Royal Veterinary College, Hatfield, United Kingdom 2London School of Hygiene & Tropical Medicine, London, United Kingdom...
Thu, 04/11/2019 - 17:00
Lester Hiley, Rikki M. A. Graham, Amy V. Jennison The virulence plasmid pSLT as exemplified the 94 Kb plasmid in Salmonella Typhimurium strain LT2 is only found in isolates of serovar Typhimurium. While it occurs commonly among such isolates recent genotyping methods have shown that it is mostly confined to certain genotypes. Although pSLT plasmids are capable of self-transmissibility under...
Thu, 04/11/2019 - 05:56
Abstract Aim To determine the protective capacity against Salmonella infection in mice of the cell‐free fraction (postbiotic) of fermented milk, produced at laboratory and industrial level. Methods and Results The proteolytic activity (PA) of five commercial cultures and eleven autochthonous Lactobacillus strains was evaluated. The DSM‐100H culture displayed the highest PA and it was selected...
Wed, 04/10/2019 - 11:48
Cantaloupes and honeydew melons inoculated with 107 CFU/ml Salmonella bacteria were treated with 1.5% of hydrogen peroxide (H2O2) at 20°C and minimally treated at 70°C for 3 min before storage at 5, 10, and 20°C. Salmonella bacteria recovered from the cantaloupe and honeydew melon rind surfaces averaged 4.5 and 3.9 log CFU/cm2, respectively, before antimicrobial treatments. Fresh‐cut pieces...
Tue, 04/09/2019 - 01:14
Available online 6 April 2019 Author(s): Daiane Voss-Rech, Beatris Kramer, Virgínia Santiago Silva, Raquel Rebelatto, Paulo Giovani Abreu, Arlei Coldebella, Clarissa Silveira Luiz VazAbstractThe vast capacity for maintenance and dissemination in the environment are major challenges for the control of Salmonella spp. in poultry farms. The aim of this study was to assess environmental contamination...
Mon, 04/08/2019 - 20:00
A Comparative Analysis of the Metabolomic Response of Electron Beam Inactivated E. coli O26:H11 and Salmonella Typhimurium ATCC 13311 Sohini S. Bhatia and Suresh D. Pillai* National Center for Electron Beam Research, International Atomic Energy Agency (IAEA), Collaborating Centre for Electron Beam Technology, Texas A&M University, College Station, TX, United States Ionizing radiation...
Mon, 04/08/2019 - 20:00
Molecular and Physiological Characterization of Fluoroquinolone-Highly Resistant Salmonella Enteritidis Strains Sinisa Vidovic*, Ran An and Aaron Rendahl Department of Veterinary and Biomedical Sciences, University of Minnesota, Saint Paul, MN, United States Four clinical isolates of Salmonella Enteritidis, susceptible to ciprofloxacin, and their spontaneous ciprofloxacin resistant (MICs from...
Mon, 04/08/2019 - 11:17
Typhoid fever, a human-specific disease, is primarily caused by the pathogen Salmonella enterica serovar Typhi (S. Typhi). It is estimated that 3-5% of people infected with typhoid fever become chronic carriers. Studies have demonstrated that a mechanism of chronic carriage involves biofilm formation on gallstone surfaces. In the course of a previous study using a chronic carriage mouse model, a...
Fri, 04/05/2019 - 01:14
Available online 2 April 2019 Author(s): Long Chen, Xinyao Wei, Sibel Irmak, Byron D. Chaves, Jeyamkondan SubbiahAbstractRadiofrequency (RF) heating was evaluated as a novel spice decontamination technology of cumin seeds.A plastic pouch with 20 g inoculated cumin seeds was placed at the top center of a tray (16.5 cm length × 13 cm width at the top tapering down to 14×10 cm at the bottom with 4...
Wed, 04/03/2019 - 01:15
Available online 2 April 2019 Author(s): Amreeta Sarjit, Joshua T. Ravensdale, Ranil Coorey, Narelle Fegan, Gary A. DykesAbstractSalmonella is a foodborne bacterial pathogen associated with red meat production worldwide. Survival of, and cross contamination with, this pathogen at any stage from the farm to the processing facility may result in human disease. Cattle, goat and sheep are common...
Wed, 04/03/2019 - 01:13
Available online 1 April 2019 Author(s): Anastasia E. Lytou, Konstantinos Tzortzinis, Panagiotis N. Skandamis, George-John E. Nychas, Efstathios Z. PanagouAbstractThe aim of this work was to study the influence of lemon and vinegar marinades on Salmonella inoculated on chicken fillets and stored under different storage temperatures for nine days in the presence of indigenous microbiota. In...
Mon, 04/01/2019 - 11:50
Typhoid fever is caused primarily by Salmonella enterica serovar Typhi (S. Typhi). Approximately 3-5% of individuals infected with S. Typhi become chronic carriers with the gallbladder (GB) as the site of persistence, as gallstones within the GB are a platform on which the bacteria form a biofilm. S. Typhi is a human-restricted pathogen; therefore, asymptomatic carriers represent a critical...
Mon, 04/01/2019 - 05:44
Abstract The occurrence of E. coli O157 and Salmonella spp. in solid bovine manure was investigated through a multi‐county survey in California. Solid bovine manure samples (n=91) were collected from 13 dairy farms located in multiple counties in California between June 2016 and August 2017. To quantify pathogens, DNA was extracted from bacteria in manure samples. Afterward, the prevalence and...
Sat, 03/30/2019 - 01:15
Available online 28 March 2019 Author(s): Lin Wang, Xuetong Fan, Kimberly Sokorai, Joseph SitesAbstractGaseous ozone was evaluated for its effectiveness in reducing populations of Salmonella and native microorganisms on grape tomatoes and its impact on sensory and nutritional quality of the fruit. Grape tomatoes with Salmonella enterica serovar Typhimurium inoculated onto stem scar and smooth...
Tue, 03/26/2019 - 14:32
Abstract Aims The purpose of this research was to determine optimum conditions for broth recovery of heat‐injured Salmonella Typhimurium and Escherichia coli O157:H7. Methods and Results Exposure to 55°C for 15 and 25 min, respectively, induced cellular injury to those pathogens. Comparison was made with the commonly used overlay method using selective medium for recovering sub‐lethally...
Tue, 03/26/2019 - 12:02
Salmonella Typhimurium can invade and survive within macrophages where the bacterium encounters a range of host environmental conditions. Like many bacteria, S. Typhimurium rapidly responds to changing environments by the use of second messengers such as cyclic di-GMP (c-di-GMP). Here, we generate a fluorescent biosensor to measure c-di-GMP concentrations in...
Tue, 03/26/2019 - 01:14
Available online 24 March 2019 Author(s): Christian Vinueza-Burgos, María Baquero, José Medina, Lieven De ZutterAbstractSalmonella is a common foodborne pathogen in the poultry production systems. Its presence in this food industry is determined by the fact that it can survive and pass throughout the different steps in the poultry production. In this study we aimed to study the occurrence,...
Sun, 03/24/2019 - 10:30
The antimicrobial activity of different essential oils was screened against five Salmonella serotypes using disk diffusion. Cinnamon (Cinnamomum zeylanicum) and thyme (Thymus vulgaris) essential oils exhibited the highest activity with inhibition zones of 22.5–38.5 mm in diameter. These oils were also investigated for their ability to control Salmonella and mesophilic aerobic bacteria (MAB) in...
Thu, 03/21/2019 - 01:18
Available online 19 March 2019 Author(s): Aline Crucello, Marianna M. Furtado, Monyca D.R. Chaves, Anderson S. Sant’AnaAbstractSalmonella enterica serotypes have been reported as the agent of various outbreaks occurred after the consumption of low water activity (aw) foods. When the pathogen encounters harsh conditions, several regulatory networks are activated through dynamic differential gene...
Wed, 03/20/2019 - 01:12
Available online 18 March 2019 Author(s): Shravani Tadepalli, David F. Bridges, Ryan Anderson, Rong Zhang, Vivian C.H. WuAbstractTo increase the safety of fruits and vegetables, including blueberries, this study developed an efficient and practical treatment strategy that implements multiple antimicrobial wash “hurdles” using industrial realistic treatment times in combination with freezing (at −...

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