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Bacterial pathogens

Fri, 06/07/2019 - 01:14
Available online 6 June 2019 Author(s): Maxine Jones, Elodie Arnaud, Pieter Gouws, Louwrens C. HoffmanAbstractBiltong is a RTE shelf stable salted/dried meat product stored under ambient conditions. The effect of vinegar addition during salting, weight loss during drying and packaging (modified atmosphere and vacuum) on the physicochemical and microbiological properties of beef biltong over a 3 ...
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 - 01:11
Available online 4 June 2019 Author(s): Erwin Bohn, Michael Sonnabend, Kristina Klein, Ingo B. AutenriethAbstractType III secretion systems (T3SS) play a crucial role for virulence in many Gram-negative bacteria. After tight bacterial contact to host cells, the T3SS injects effector proteins into the host cells, which leads to cell invasion, tissue destruction and/or immune evasion. Over the last...
Thu, 06/06/2019 - 00:00
Reports of β-lactam-resistant Staphylococcus aureus in artisanal goat cheese are increasing, and this phenomenon is relevant to public health. The objective of the present study was to determine the prevalence of S. aureus strains carrying the blaZ and mecA resistance genes, as well as the genes encoding the staphylococcal enterotoxins SEA, SEB, SEC, SED, SEE, and TSST-1 in artisanal coalho...
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...
Thu, 06/06/2019 - 00:00
Toxins, Vol. 11, Pages 326: Prevalence and Genetic Diversity of Toxin Genes in Clinical Isolates of Clostridium perfringens: Coexistence of Alpha-Toxin Variant and Binary Enterotoxin Genes (bec/cpile) Toxins doi: 10.3390/toxins11060326 Authors: Asami Matsuda Meiji Soe Aung Noriko Urushibara Mitsuyo Kawaguchiya Ayako Sumi Mayumi Nakamura Yuka Horino Masahiko Ito Satoshi...
Wed, 06/05/2019 - 17:00
Margaret D. Weinroth, Brianna C. Britton, Kathryn R. McCullough, Jennifer N. Martin, Ifigenia Geornaras, Rob Knight, Keith E. Belk, Jessica L. Metcalf Ground beef makes up more than half of the beef consumed in the U.S. market. Although numerous studies have been conducted on microbial safety and shelf life of ground beef limited work has been done using a culture-independent approach. While...
Wed, 06/05/2019 - 14:54
Considering the popular use of microwave ovens to prepare foods, inhibitory effect of microwave cooking on foodborne pathogens was studied. Whiting and salmon blocks were inoculated either with E. coli O157:H7, Staphylococcus aureus or Listeria monocytogenes, then cooked in microwave oven to the internal temperatures of 50 and 70°C. Cooking of fish fillets to both internal temperatures resulted...
Wed, 06/05/2019 - 01:14
Available online 4 June 2019 Author(s): Alberto Garre, Gerardo A. González-Tejedor, Arantxa Aznar, Pablo S. Fernández, Jose A. EgeaAbstractModelling of stress acclimation induced by thermal inactivation of Listeria monocytogenes under dynamic conditions is analyzed in this work. A mathematical model that separates the effect of the instantaneous temperature from the one of stress acclimation, was...
Wed, 06/05/2019 - 01:12
Available online 4 June 2019 Author(s): Maik Szendy, Stefan Kalkhof, Sebastian Bittrich, Florian Kaiser, Christoph Leberecht, Dirk Labudde, Matthias NollAbstractThe lantibiotic nisin is used as a food additive to effectively inactivate a broad spectrum of Gram-positive bacteria such as Listeria monocytogenes. In total, 282 L. monocytogenes field isolates from German ready-to-eat food products,...
Wed, 06/05/2019 - 01:12
Available online 3 June 2019 Author(s): Heng Li, Marc Stegger, Anders Dalsgaard, Jørgen J. LeisnerAbstractThis study examined the prevalence and phenotypic and genotypic antibiotic resistance patterns of Staphylococcus aureus in sushi from 20 Danish outlets. Microbial quality of sushi products and food inspector ranking of outlets were assessed and results for thirteen of the outlets were...
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...
Tue, 06/04/2019 - 15:14
Abstract Aims We developed a strategy for localized delivery of the LFCA (lactoferricin‐lactoferrampin), which is actively synthesized in situ by Lactococcus lactis (pAMJ399‐LFCA/LLMG1363), and explored the possibility of using the pAMJ399‐LFCA/LLMG1363 as an alternative additive diet to antibiotics. Methods and Results The antimicrobial activities of the LFCA derived from pAMJ399‐LFCA/...
Tue, 06/04/2019 - 05:32
Abstract Fresh fruits and vegetables are a rich source of micronutrients. However, many foodborne illnesses have been linked to the consumption of fresh fruits and vegetables as they are reported to harbor contaminants such as microorganisms and pesticides. Recently reported foodborne outbreaks have been linked to a diverse group of fruits and vegetables due to the presence of various pathogens...
Tue, 06/04/2019 - 01:12
Publication date: Available online 3 June 2019Source: Microbial Risk AnalysisAuthor(s): Ali Al-SakkafAbstractNew Zealand has the highest rate of reported campylobacteriosis in the developed world. Due to the large economic and health consequences of campylobacteriosis, prediction models for disease are required to be designed to predict accurately the number of campylobacteriosis cases. The...
Tue, 06/04/2019 - 00:00
Toxins, Vol. 11, Pages 318: In Vitro Mutagenic and Genotoxic Assessment of a Mixture of the Cyanotoxins Microcystin-LR and Cylindrospermopsin Toxins doi: 10.3390/toxins11060318 Authors: Leticia Díez-Quijada Ana I. Prieto María Puerto Ángeles Jos Ana M. Cameán The co-occurrence of various cyanobacterial toxins can potentially induce toxic effects different than those observed for...
Mon, 06/03/2019 - 01:12
Available online 1 June 2019 Author(s): Karolin Leibiger, Jonas Malte Schweers, Monika SchützAbstractBacteria often express numerous virulence factors. These virulence factors make them successful pathogens, by e.g. mediating attachment to host cells and thereby facilitating persistence or invasion, or by contributing to the evasion of the host immune system to allow proliferation and spread...
Sun, 06/02/2019 - 20:00
The aim of this study was to evaluate the frequency of toxigenic C. difficile and C. perfringens infections at health care facility-onset (HCFO) and community-onset (CO), in two health care centers (HCC) in Bogot...
Sun, 06/02/2019 - 20:00
Ready-to-eat (RTE) vegetables have become increasingly popular along with the trend of moving towards a healthy lifestyle. However, RTE vegetables are at a higher risk of containing pathogens, maybe owing to l...
Sun, 06/02/2019 - 01:11
Available online 31 May 2019 Author(s): Antonio Benítez-Cabello, Verónica Romero-Gil, Eduardo Medina, Borja Sánchez, Beatriz Calero-Delgado, Joaquín Bautista-Gallego, Rufino Jiménez-Díaz, Francisco Noé Arroyo-LópezAbstractIn this work, we have used a metataxonomic analysis to study the bacterial biodiversity in three types of commercial dressing and ingredients habitually used in table olive...
Sat, 06/01/2019 - 01:14
Available online 31 May 2019 Author(s): Ying Li, Shuang Zhang, Jie Li, Meiling Chen, Mu He, Yuanyuan Wang, Yanchun Zhang, Hongbo Jing, Hongmei Ma, Yindong Li, Lin Zhao, Hongqun Zhao, Biao Kan, Bo PangAbstractGlobally, V. parahaemolyticus infection is a leading cause of bacterial diarrheal diseases. Pathogenic V. parahaemolyticus strains that produce hemolysins are responsible for these diseases....
Sat, 06/01/2019 - 01:12
Publication date: August 2019Source: LWT, Volume 111Author(s): Ofélia Anjos, Rodrigo Fernandes, Susana M. Cardoso, Teresa Delgado, Nelson Farinha, Vanessa Paula, Letícia M. Estevinho, Solange T. CarpesAbstractThe antioxidant activity of bee pollen (mainly composed by Cistus ladanifer pellets) was explored in the context of black pudding production. For this purpose, three black pudding...
Fri, 05/31/2019 - 20:00
Following publication of the original article [1], the authors reported an error in Fig. 2. The correct figure is shown below.
Fri, 05/31/2019 - 01:12
Publication date: 15 October 2019 , Volume 295Author(s): Cícero C. Pola, Allan R.F. Moraes, Eber A.A. Medeiros, Reinaldo F. Teófilo, Nilda F.F. Soares, Carmen L. GomesAbstractThe aim of this work was to develop and optimize a pH-responsive nanoparticle based on poly(D,L-lactide-co-glycolide) (PLGA) and chitosan (CHIT) for delivery of natural antimicrobial using trans-cinnamaldehyde (TCIN) as a...
Fri, 05/31/2019 - 01:12
Available online 30 May 2019 Author(s): F. Panebianco, A. Giusti, F. Giarratana, A. ArmaniAbstractEthnic foods are nowadays increasingly consumed by Western citizens. However, deficiencies in traceability and poor hygiene conditions have been often reported for ethnic foods. In this study, seafood products (fish, crustaceans and seaweeds) purchased in Southern Italy from ethnic food stores were...
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 - 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 30 May 2019 Author(s): Mallu Jagnow Sereno, Cibeli Viana, Kadigia Pegoraro, Danilo Lopes da Silva, Ricardo Seiti Yamatogi, Luís Augusto Nero, Luciano dos Santos BersotAbstractListeria monocytogenes is a relevant pathogen usually associated with meat and ready-to-eat products. This study aimed to assess the distribution, adhesion, virulence and antibiotic resistance of L....
Fri, 05/31/2019 - 01:12
Available online 29 May 2019 Author(s): Lourdes García-Sánchez, Beatriz Melero, Isabel Jaime, Mirko Rossi, Irene Ortega, Jordi RoviraAbstractThe fastidious requirement of the zoonotic pathogen Campylobacter jejuni contrasts with its ability to overcome harsh conditions. Different strategies might be involved in the survival and persistence of C. jejuni through the poultry food chain. Therefore,...
Fri, 05/31/2019 - 01:11
Publication date: August 2019Source: LWT, Volume 111Author(s): Dalila Garcia-Sotelo, Brenda Silva-Espinoza, Manuel Perez-Tello, Isela Olivas, Emilio Alvarez-Parrilla, Gustavo A. González-Aguilar, J. Fernando Ayala-ZavalaAbstractRosemary essential oil (RO) was encapsulated within β-cyclodextrin (β-CD) to offer thermal stability and preserve its antimicrobial activity. The identified RO volatiles...
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 - 20:00
Studies have reported the occurrence of V. cholerae in fish but little is known about the interaction between fish and toxigenic V. cholerae as opposed to phytoplankton, which are well-established aquatic reservoirs for V. cholerae. The present study determined the role of tilapia (Oreochromis niloticus) as a reservoir host for survival and transmission of V. cholerae in aquatic environments....
Thu, 05/30/2019 - 11:00
In this study, we developed a washing system capable of decontaminating fresh produce by combining the Spindle apparatus, which detaches microorganisms on sample surfaces, and a 222-nm krypton-chlorine excimer lamp (KrCl excilamp) (Sp-Ex) and investigated their decontamination effect against Escherichia coli O157:H7, Salmonella enterica serovar Typhimurium, and Listeria monocytogenes on apple (...
Thu, 05/30/2019 - 11:00
An increase of Escherichia-Shigella was previously reported in acute necrotizing pancreatitis (ANP). We investigated whether Escherichia coli MG1655, an Escherichia commensal organism, increased intestinal injury and aggravated ANP in rats. ANP was induced by retrograde injection of 3.5% sodium taurocholate into the biliopancreatic duct. Using gut microbiota-depleted rats, we demonstrated that...
Thu, 05/30/2019 - 03:00
e-First Articles. Oysters from a reef in Galveston Bay, Texas, USA, were screened for more virulent clinical strains versus less virulent environmental strains of Vibrio vulnificus using a combination of quantitative PCR assays for the virulence correlating gene (clinical variant, vcgC) and 16S rRNA types A and B (type A = environmental, type B = clinical). The combination of vcgC and 16S rRNA...
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...
Thu, 05/30/2019 - 01:13
Publication date: September 2019 , Volume 123Author(s): Myrsini Kakagianni, Konstantinos P. KoutsoumanisAbstractA predictive mathematical model of the effect of temperature (10–47 °C) on the growth of Escherichia coli O157:H7 in natural contaminated ground beef was developed. The estimated values for the cardinal parameters Tmin, Tmax, Topt and the optimum maximum specific growth rate (μopt) of E...
Thu, 05/30/2019 - 00:00
Staphylococcus aureus is one of the leading causes of food-borne illness worldwide. Raw milk and dairy products are often contaminated with enterotoxigenic strains of this bacterium. Some of these strains carry antimicrobial resistance, leading to a potential risk for consumers. The aim of this study was to characterize S. aureus strains circulating in raw milk and traditional dairy products for...
Wed, 05/29/2019 - 09:08
Pediococcus acidilactici strain is a suitable starter for lupine protein biodegradation, lowering the molecular weight of the protein (peptides from 10 to 20 kDa) in SMF and SSF samples. Also, enhanced protein digestibility of SSF (7.7%) and SMF protein isolates (11.2%), respectively, can be obtained, compared to nonfermented samples. The biodegradation of lupine protein endows new features to...
Wed, 05/29/2019 - 01:12
Available online 27 May 2019 Author(s): Shi Wu, Feng Zhang, Jiahui Huang, Qingping Wu, Jumei Zhang, Jingsha Dai, Haiyan Zeng, Xiaojuan Yang, Moutong Chen, Rui Pang, Tao Lei, Youxiong Zhang, Liang Xue, Juan Wang, Yu DingAbstractStaphylococcus aureus encodes numerous toxins that are known or strongly suspected to cause specific diseases or symptoms. Panton-Valentine leukocidin (PVL) is one of these...
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...
Wed, 05/29/2019 - 00:00
Toxins, Vol. 11, Pages 307: Genotypes, Enterotoxin Gene Profiles, and Antimicrobial Resistance of Staphylococcus aureus Associated with Foodborne Outbreaks in Hangzhou, China Toxins doi: 10.3390/toxins11060307 Authors: Qi Chen Sangma Xie Staphylococcal food poisoning is an illness caused by the consumption of food that contains sufficient amounts of one or more enterotoxins. In the...
Tue, 05/28/2019 - 20:00
Shigella spp., facultative anaerobic bacilli of the family Enterobacteriaceae, are one of the most common causes of diarrheal diseases in human worldwide which have become a significant public health burden. So, ...

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