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Salmonella

Wed, 07/17/2019 - 01:03
Available online 16 July 2019 Author(s): Dorra Djebbi-Simmons, Wenqing Xu, Marlene Janes, Joan KingAbstractOne of the most important transmission routes of foodborne pathogens is through contaminated food contact surfaces. In this study, we investigated the survival and inactivation of Salmonella enterica serovar Typhimurium on frequently used food contact surfaces in household settings,...
Tue, 07/16/2019 - 01:05
Publication date: Available online 13 July 2019Source: LWTAuthor(s): Zahra Hassan Mohammad, Elsa A. Murano, Rosana G. Moreira, Alejandro CastilloAbstractCommercial almond pasteurization often involves thermal treatments to control Salmonella, and evaluation of non-thermal technologies such as irradiation, is warranted. Direct and indirect effects of irradiation affect pathogens by causing...
Tue, 07/16/2019 - 00:00
Toxins, Vol. 11, Pages 416: The ADP-Ribosylating Toxins of Salmonella Toxins doi: 10.3390/toxins11070416 Authors: Cheng Wiedmann A number of pathogenic bacteria utilize toxins to mediate disease in a susceptible host. The foodborne pathogen Salmonella is one of the most important and well-studied bacterial pathogens. Recently, whole genome sequence characterizations revealed the...
Mon, 07/15/2019 - 20:00
Salmonella enterica is recognized as a major contributor of gastrointestinal illness worldwide. Concerns have been raised over the increasing prevalence of antibiotic resistant strains of Salmonella isolated from animals and food, and the role of antibiotics and other antimicrobial agents such as biocides and heavy metals in the selection and dissemination of antibiotic resistant bacteria to...
Mon, 07/15/2019 - 01:05
Available online 10 July 2019 Author(s): Nguyen Thi Phuong Yen, Nguyen Thi Nhung, Nguyen Thi Bich Van, Nguyen Van Cuong, Le Tran Tien Chau, Huynh Ngoc Trinh, Chu Van Tuat, Nguyen Dong Tu, Nguyen Phu Huong Lan, James Campbell, Guy Thwaites, Stephen Baker, Juan Carrique-MasAbstractWe investigated antimicrobial residues, non-typhoidal Salmonella (NTS), Vibrio spp. and their associated antimicrobial...
Mon, 07/15/2019 - 01:05
Available online 12 July 2019 Author(s): Haiqiang Wang, Elliot T. RyserAbstractDiced tomatoes have been linked to outbreaks of salmonellosis in the United States. Compared to slicing, commercial production of diced tomatoes is more complex and includes mechanical dicing as well as washing, dewatering, conveying, and packing. Consequently, this study aimed to 1) quantify Salmonella transfer during...
Sat, 07/13/2019 - 01:03
Publication date: December 2019 , Volume 106Author(s): Bong Sun Kim, Hyunjin Kim, Seok-Seong KangAbstractBiotransformation is an effective system to provide various beneficial effects in food processing and pharmaceutical fields. The present study evaluated the anti-bacterial and anti-inflammatory activities of lactic acid bacteria (LAB)-biotransformed mulberry fruit extract (MFE) against...
Fri, 07/12/2019 - 01:04
Publication date: November 2019Source: LWT, Volume 114Author(s): Tushar Verma, Jeyamkondan SubbiahAbstractSingle-screw extrusion is an effective tool in reducing microbial contamination, however, limited data exists on the efficacy of twin-screw extrusion for microbial inactivation. The purpose of this study was to evaluate the effect of fat (5–15%), moisture content (14–26%), temperature (55–85...
Fri, 07/12/2019 - 01:04
Publication date: Available online 8 July 2019Source: LWTAuthor(s): Aiping Liu, Yuping Wang, Xingzhe Cai, Shan Jiang, Xiaowen Cai, Li Shen, Yuntao Liu, Guoquan Han, Shujuan Chen, Jia Wang, Wenjuan Wu, Cheng Li, Shuliang Liu, Xiaohong WangAbstractSalmonella strains pose a great challenge to food safety. The exploration of bacteriophage endolysins can be a valuable measure for the prevention of...
Thu, 07/11/2019 - 00:00
Abstract The effect of dietary aflatoxin B1 (AFB1) and Salmonella Enteritidis infection on intestinal permeability was investigated. Two hundred 1-day-old male Ross 308 broiler chickens were randomly divided into 4 treatments of 5 replicates each (10 birds per replicate), which were fed ad libitum for 3 weeks with the following treatments: control, chickens fed an AFB1-free diet...
Wed, 07/10/2019 - 20:00
Gastrointestinal illnesses continue to be a global public health risk. Exposure to foodborne Salmonella directly or indirectly through consumption of ready-to-eat seafood can be an important route of infection to humans. This study was designed to estimate the population cell density, prevalence, virulence gene signatures and antibiotic resistance of Salmonella serovars from ready-to-eat shrimps...
Wed, 07/03/2019 - 20:00
With the increase in commercial pig farming, there is a simultaneous increase in the use of antibiotics for prophylaxis as well as therapeutics in China. In this study, we evaluated the prevalence and resistance diversity of Salmonella isolated from faeces of asymptomatic, live and slaughtered pigs. We analyzed 1,732 pig faecal samples collected over eight months, at Henan province of China....
Wed, 07/03/2019 - 17:00
Quail Das, Dion Lepp, Xianhua Yin, Kelly Ross, Jason L. McCallum, Keith Warriner, Massimo F. Marcone, Moussa S. Diarra Non-typhoidal Salmonella enterica serovars continue to be an important food safety issue worldwide. Cranberry (Vaccinium macrocarpon Ait) fruits possess antimicrobial properties due to their various acids and phenolic compounds; however, the underlying mechanism of actions is...
Wed, 07/03/2019 - 15:04
Abstract Efflux mediated multidrug resistance is a well‐known phenomenon facilitated by multidrug resistant (MDR) transporters. One of the approaches to counteract efflux mediated resistance is the use of MDR pump inhibitors, and thus be used in combination with the conventional antibiotics to treat deadly diseases like typhoid fever. We have previously reported that STY4874, an efflux...
Tue, 07/02/2019 - 20:00
Salmonella enterica serotype Typhimurium is a major global food-borne pathogen and causes life-threatening infections. Although the resistance mechanisms to fluoroquinolones in S. Typhimurium had been well defined, tolerance to fluoroquinolones and the associated mechanism for this are obscure. In the current work, we investigated an oqxAB-positive plasmid pHXY0908 and analyzed its role in S....
Mon, 07/01/2019 - 20:00
UK public health organisations perform routine antimicrobial susceptibility tests (ASTs) to characterise the potential for antimicrobial resistance in Salmonella enterica serovars. Genetic determinants of these r...
Mon, 07/01/2019 - 11:32
Salmonella enterica serovar Typhimurium induces inflammatory diarrhea and bacterial uptake into intestinal epithelial cells using the Salmonella pathogenicity island 1 (SPI1) type III secretion system (T3SS). HilA activates transcription of the SPI1 structural components and effector proteins. Expression of hilA is activated by HilD, HilC, and RtsA, which act in a complex feed-forward regulatory...
Mon, 07/01/2019 - 11:00
Salmonella enterica is increasingly linked to disease outbreaks associated with consumption of low-water-activity (low-aw) foods. Persistence of the pathogen in these foods was attributed to its ability to implement desiccation resistance mechanisms. Published knowledge about methods that disrupt desiccation resistance in S. enterica is lacking. We hypothesize that strong membrane-active...
Mon, 07/01/2019 - 11:00
Salmonella spp. are among the most important foodborne pathogens and the third leading cause of human death among diarrheal diseases worldwide. Animals are the primary source of this pathogen, and animal-based foods are the main transmission route to humans. Thus, understanding the global epidemiology of Salmonella serovars is key to controlling and monitoring this bacterium. In this context,...
Mon, 07/01/2019 - 11:00
Detection of salmonellae within poultry environments is an important component of many food safety programs, but sampling approaches vary greatly and may not enable the detection of salmonellae when bacteria are present at a low prevalence or concentration. Intensive longitudinal sampling within caged sheds enabled us to undertake a longitudinal analysis of the spatial distribution of salmonellae...
Thu, 06/27/2019 - 01:07
Available online 26 June 2019 Author(s): Xiaojie Qin, Rui Dong, Shoukui He, Xiujuan Zhou, Zengfeng Zhang, Yan Cui, Chunlei Shi, Yanhong Liu, Xianming ShiAbstractThe ybgC gene (encoding for acyl-CoA thioesterase) was shown to play a crucial role in the survival of Salmonella Enteritidis (S. Enteritidis) in egg white in our previous study. In this study, the resistance mechanisms of S. Enteritidis...
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...
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 - 20:00
Not all Salmonella enterica serovars cause the same disease. S. enterica represents an incredibly diverse species comprising >2,600 unique serovars. While some S. enterica serovars are host-restricted, others infect a wide range of hosts. The diseases that nontyphoidal Salmonella (NTS) serovars cause vary considerably, with some serovars being significantly more likely to cause invasive...
Tue, 06/25/2019 - 08:35
Abstract Salmonella‐contaminated raw food is an important source of human food poisoning. Traditional methods for detecting Salmonella in meat involve many time‐consuming and laborious steps, preventing timely and effective control of the pathogen. In this study, a multiplex polymerase chain reaction (PCR) assay that targets serovar‐specific genes such as A7P63_0910 (Salmonella Indiana), sdfI (...
Tue, 06/25/2019 - 08:35
Abstract Salmonella‐contaminated raw food is an important source of human food poisoning. Traditional methods for detecting Salmonella in meat involve many time‐consuming and laborious steps, preventing timely and effective control of the pathogen. In this study, a multiplex polymerase chain reaction (PCR) assay that targets serovar‐specific genes such as A7P63_0910 (Salmonella Indiana), sdfI (...
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...
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...
Tue, 06/18/2019 - 12:48
The adaptive in vivo mechanisms underlying the switch in Salmonella enterica lifestyles from the infectious form to a dormant form remain unknown. We employed Caenorhabditis elegans as a heterologous host to understand the temporal dynamics of Salmonella pathogenesis and to identify its lifestyle form in vivo. We discovered that Salmonella...
Mon, 06/17/2019 - 01:15
Available online 16 June 2019 Author(s): Paolo Bonilauri, Maria Silvia Grisenti, Paolo Daminelli, Giuseppe Merialdi, Mattia Ramini, Lia Bardasi, Roberta Taddei, Elena Cosciani-Cunico, Elena Dalzini, Maria Angela Frustoli, Federica Giacometti, Silvia Piva, Andrea SerrainoAbstractThis study involved ten enterprises producing Italian salami, 20 different samples of fermented sausages underwent...
Sat, 06/15/2019 - 01:07
Available online 13 June 2019 Author(s): Yong Ma, Sujuan Ding, Yanquan Fei, Gang Liu, Hongmei Jang, Jun FangAbstractThe main foodborne pathogens are Norovirus, Enteric parasites, bacteria and fungi. Foodborne diseases can lead to high morbidity and mortality and result in huge economic losses. Some foodborne diseases are associated with antibiotic resistance, which is a significant problem...
Sat, 06/15/2019 - 01:07
Available online 13 June 2019 Author(s): Qin Liu, Xiaoxuan Jin, Xiao Feng, Hongshun Yang, Caili FuAbstractIn the present study, the synergistic disinfection efficacy of low concentration electrolyzed water (LcEW) (free available chlorine, 4 mg/L) combined with brief heat enhancement was evaluated and the bactericidal mechanism was investigated by atomic force microscopy (AFM). The inactivation...
Thu, 06/13/2019 - 01:17
Available online 12 June 2019 Author(s): Xuan Zhang, Yan Dong Niu, Yuchen Nan, Kim Stanford, Rick Holley, Tim McAllister, Claudia Narváez-BravoAbstractThe purpose of this study was to determine the effectiveness of a commercial Salmonella bacteriophage mixture (SalmoFresh™ 6-phage strains) and to compare its effectiveness with a chlorinated water treatment to reduce Salmonella on produce and...
Wed, 06/12/2019 - 00:00
The process of fermentation contributes to the organoleptic properties, preservation, and nutritional benefits of food. Fermented food may interfere with pathogen infections through a variety of mechanisms, including competitive exclusion or improving intestinal barrier integrity. In this study, the effect of milk fermented with Lactococcus lactis ssp. cremoris JFR1 on Salmonella invasion of...
Tue, 06/11/2019 - 04:54
Abstract Concerns over the safety of nitrite and its role in the formation of nitrosamines have aroused considerable interest in developing alternative antimicrobial agents to replace nitrite. Plant‐derived antimicrobial agents could serve against food spoilage and pathogens. For the first time in this study, three semiempirical kinetic models, that is, exponential, homographic, and n‐order...
Tue, 06/11/2019 - 04:54
Abstract Concerns over the safety of nitrite and its role in the formation of nitrosamines have aroused considerable interest in developing alternative antimicrobial agents to replace nitrite. Plant‐derived antimicrobial agents could serve against food spoilage and pathogens. For the first time in this study, three semiempirical kinetic models, that is, exponential, homographic, and n‐order...
Mon, 06/10/2019 - 12:53
Salmonella must rapidly adapt to various niches in the host during infection. Relevant virulence factors must be appropriately induced, and systems that are detrimental in a particular environment must be turned off. Salmonella infects intestinal epithelial cells using a type 3 secretion system (T3SS) encoded on Salmonella pathogenicity island 1 (SPI1). The system is controlled by three AraC-like...
Sun, 06/09/2019 - 14:39
Abstract Livestock meat and offal contribute significantly to human nutrition as sources of high‐quality protein and micronutrients. Livestock products are increasingly in demand, particularly in low‐ and middle‐income settings where economies are growing and meat is increasingly seen as an affordable and desirable food item. Demand is also driving intensification of livestock keeping and...
Fri, 06/07/2019 - 01:14
Available online 5 June 2019 Author(s): Helen Kathleen Crabb, Joanne Lee Allen, Joanne Maree Devlin, Simon Matthew Firestone, Mark Stevenson, Colin Reginald Wilks, James Rudkin GilkersonAbstractBetween 1991 and 2014 the per capita notification rate of salmonellosis in Australia increased from 31.9 to 69.7 cases per 100,000 people. Salmonella Typhimurium accounted for nearly half the human cases...
Fri, 06/07/2019 - 01:14
Publication date: Available online 5 June 2019Source: Microbial Risk AnalysisAuthor(s): Elisabetta Lambertini, Juliana Ruzante, Robert Chew, Vanessa L. Apodaca, Barbara B. KowalcykAbstractNon-typhoidal Salmonella is a significant foodborne pathogen causing over a million illnesses each year in the United States. Poultry is one of the food commodities most frequently associated with Salmonella...
Thu, 06/06/2019 - 00:00
Fermented whey dairy beverages are dairy products obtained by fermentation from a mixture of milk and whey. These beverages have important health benefits, which could be improved with the addition of probiotic cultures. This study assessed the protective effect of the cosupplementation of a probiotic culture (Lactobacillus casei 01) with a fermented whey dairy beverage against infection by...
Tue, 06/04/2019 - 20:00
The emergence and increase in prevalence of resistance to cephalosporins amongst isolates of Salmonella from food animals imposes a public health threat. The aim of the present study was to investigate the prevalence and characteristics of CTX-M-producing Salmonella isolates from raw meat and food animals. 27 of 152 (17.76%) Salmonella isolates were ESBL-positive including 21/70 (30%) from food...
Fri, 05/31/2019 - 01:12
Available online 29 May 2019 Author(s): Saida Essendoubi, Natisha Stashko, Iyla So, Gary Gensler, Deana Rolheiser, Chunu MainaliAbstractFrom January to December 2016, Alberta Agriculture and Forestry (AAF) conducted a provincial survey of selected pathogens and indicator organisms on beef carcasses processed at Provincially Licensed Abattoirs (PLAs) in Alberta. The survey was conducted in seven...
Fri, 05/31/2019 - 01:12
Available online 27 May 2019 Author(s): Dongjie Chen, Yanling Cheng, Peng Peng, Juer Liu, Yunpu Wang, Yiwei Ma, Erik Anderson, Chi Chen, Paul Chen, Roger RuanAbstractCronobacter sakazakii and Salmonella spp. are foodborne pathogens associated with low moisture foods. An intense pulsed light (IPL) system is being developed as an alternative novel method to pasteurize powdered food. The aim of the...
Fri, 05/31/2019 - 00:00
Salmonella enterica is a zoonotic pathogen of substantial concern to global human and animal health. It is a leading cause of morbidity and mortality in people worldwide. S. enterica can successfully colonize animals, humans, and plants, and is also found in the environment. Some serovars have a broad host range (S. Typhimurium and S. Enteriditis), others are host-adapted (S. Typhi and S....
Thu, 05/30/2019 - 20:00
Optical biosensors for rapid detection of significant foodborne pathogens are steadily gaining popularity due to its simplicity and sensitivity. While nanomaterials such as gold nanoparticles (AuNPs) are commonly used as signal amplifiers for optical biosensors, AuNPs can also be utilized as a robust biosensing platform. Many reported optical biosensors were designed for individual pathogen...
Thu, 05/30/2019 - 01:14
Available online 28 May 2019 Author(s): Teerarat Prasertsee, Phongsakorn Chuammitri, Manu Deeudom, Nipa Chokesajjawatee, Pannita Santiyanont, Pakpoom Tadee, Aniroot Nuangmek, Phacharaporn Tadee, Samuel Sheppard, Ben Pascoe, Prapas PatchaneeAbstractSalmonella enterica subsp. enterica serotype Rissen is the predominant serotype found in Thai pork production and can be transmitted to humans through...
Wed, 05/29/2019 - 01:12
Available online 28 May 2019 Author(s): Bronwyn Deen, Francisco Diez-GonzalezAbstractThe control of Salmonella in low water activity foods poses a challenge for the food industry because of its thermal resistance. The use of surrogate bacteria in a food plant is considered a critical component to validate processing steps. The objective of this study was to evaluate the use of Pediococcus...
Mon, 05/27/2019 - 01:11
Available online 25 May 2019 Author(s): Susana de Oliveira Elias, Tiago Baptista Noronha, Eduardo Cesar TondoAbstractLettuce (Lactuca sativa), one of the most consumed leafy vegetables in the world, is frequently implicated with foodborne disease (FBD) outbreaks, with Salmonella spp. and Escherichia coli O157:H7 being the most common bacteria to cause this illness. Estimates of prevalence and...
Sun, 05/26/2019 - 11:56
Abstract The bacteriological quality and safety of ready‐to‐eat (RTE) foods in Barbados were assessed in two separate studies conducted between 2014 and 2016. In Study 1, 206 food samples were processed for Salmonella spp. by conventional bacteriological methods. Polymerase chain reaction (PCR) and serotyping were used for confirmation. In Study 2, 120 food samples were processed for the total...

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