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https://www.readbyqxmd.com/read/28803189/efficacy-of-radiant-catalytic-ionization-to-reduce-bacterial-populations-in-air-and-on-different-surfaces
#1
Krzysztof Skowron, Katarzyna Grudlewska, Joanna Kwiecińska-Piróg, Grzegorz Gryń, Mścisław Śrutek, Eugenia Gospodarek-Komkowska
Air contamination by biological agents is often observed in medical or veterinary facilities and industrial plants. Bioaerosols may sediment and pose the surface contamination. Microorganisms present on them may become a source of infections among humans and food contamination. This study determined the use of oxidative gases, including ozone and peroxide, generated by the Radiant Catalytic Ionization (RCI) cell for the inactivation of Acinetobacter baumannii, Escherichia coli, Enterococcus faecalis, Pseudomonas aeruginosa, Salmonella Enteritidis, Listeria monocytogenes, Staphylococcus aureus, Streptococcus epidermidis, Bacillus subtilis, Clostridium sporogenes, Candida albicans, Aspergillus niger and Penicillium chrysogenumon in air and on different surfaces...
August 10, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28803013/short-communication-detection-of-stx2-and-elt-genes-in-bovine-milk-by-using-a-multiplex-pcr-system
#2
R D S Nandi, A C Campos, J J Puño-Sarmiento, R P Maluta, S P D Rocha, R K T Kobayashi, G Nakazato
The aim of this study was to detect 2 important toxin genes from diarrheagenic Escherichia coli (DEC) in bovine milk using a new multiplex PCR. To standardize the multiplex PCR, the stx2 and elt genes were investigated for the detection of Shiga toxin-producing Escherichia coli (STEC) and enterotoxigenic E. coli (ETEC), respectively. The DNA template was prepared with a thermal procedure (boiling) and a commercial kit. Samples consisted of UHT and pasteurized milk, both skimmed, and STEC and ETEC were tested in concentrations between 10(1) and 10(9) cfu/mL...
August 9, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28800411/antimicrobial-resistance-and-resistance-genes-in-salmonella-strains-isolated-from-broiler-chickens-along-the-slaughtering-process-in-china
#3
Yuanting Zhu, Haimei Lai, Likou Zou, Sheng Yin, Chengtao Wang, Xinfeng Han, Xiaolong Xia, Kaidi Hu, Li He, Kang Zhou, Shujuan Chen, Xiaolin Ao, Shuliang Liu
A total of 189 Salmonella isolates were recovered from 627 samples which were collected from cecal contents of broilers, chicken carcasses, chicken meat after cutting step and frozen broiler chicken products along the slaughtering process at a slaughterhouse in Sichuan province of China. The Salmonella isolates were subjected to antimicrobial susceptibility testing to 10 categories of antimicrobial agents using the Kirby-Bauer disk diffusion method. Those antibiotics-resistant isolates were further investigated for the occurrence of resistance genes, the presence of class 1 integron as well as the associated gene cassettes, and the mutations within the gyrA and parC genes...
August 1, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/28800246/risk-of-salmonellosis-from-chicken-parts-prepared-from-whole-chickens-sold-in-flow-pack-wrappers-and-subjected-to-temperature-abuse
#4
T P Oscar
The flow pack wrapper is a popular packaging choice for retail sale of whole chickens. However, it may provide a favorable environment for growth and spread of Salmonella within the package, leading to an outbreak of salmonellosis. To investigate this possibility, a process risk model was developed that predicted the risk of salmonellosis from chicken parts prepared from whole chickens sold in flow pack wrappers and subjected to proper storage (6 h at 4°C) or improper storage (72 h at 15°C) before preparation...
September 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/28781944/antibiotic-resistance-patterns-and-serotypes-of-salmonella-spp-isolated-at-jeollanam-do-in-korea
#5
Ki-Bok Yoon, Byung-Joon Song, Mi-Yeong Shin, Hyun-Cheol Lim, Yeon-Hee Yoon, Doo-Young Jeon, Hoon Ha, Soo-In Yang, Jung-Beom Kim
OBJECTIVES: Few long-term studies have been conducted on the serotype and antibiotic resistance patterns of Salmonella speices (spp.) The aim of this study was to determine the serotypes and antibiotic resistance patterns of Salmonella spp. isolated at Jeollanam-do in Korea from 2004 to 2014. METHODS: A total of 276 Salmonella samples were evaluated. Serotyping was carried out according to the Kauffmann-White scheme. Antibiotic susceptibility was determined using the Vitek II system with an AST-N169 card...
June 2017: Osong Public Health and Research Perspectives
https://www.readbyqxmd.com/read/28771040/validation-of-thermal-lethality-against-salmonella-enterica-in-poultry-offal-during-rendering
#6
Amie-Marie Jones-Ibarra, Gary R Acuff, Christine Z Alvarado, T Matthew Taylor
Recent outbreaks of human disease following contact with companion animal foods cross-contaminated with enteric pathogens, such as Salmonella enterica, have resulted in increased concern regarding the microbiological safety of animal foods. Additionally, the U.S. Food and Drug Administration Food Safety Modernization Act and its implementing rules have stipulated the implementation of current good manufacturing practices and food safety preventive controls for livestock and companion animal foods. Animal foods and feeds are sometimes formulated to include thermally rendered animal by-product meals...
September 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/28770691/outbreak-of-salmonella-enteritidis-phage-type-1b-associated-with-frozen-pre-cooked-chicken-cubes-finland-2012
#7
S Huusko, A Pihlajasaari, S Salmenlinna, J Sõgel, I Dontšenko, E DE Pinna, H Lundström, S Toikkanen, R Rimhanen-Finne
In August to October 2012, a nationwide outbreak of Salmonella enteritidis phase type (PT) 1B with 53 cases occurred in Finland. Hypothesis generating interviews pointed toward ready-to-eat chicken salad from a Finnish company and at the same time Estonian authorities informed of a S. enteritidis PT 1B outbreak linked to chicken wrap prepared at an Estonian restaurant. We found that chicken salad was associated with the infection (odds ratio (OR) 16·1, 95% confidence interval (CI) 1·7-148·7 for consumption and OR 17·5...
August 3, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28770174/the-novel-type-1-fimbriae-fimh-receptor-calreticulin-plays-a-role-in-salmonella-host-specificity
#8
Krzysztof Grzymajlo, Maciej Ugorski, Jaroslaw Suchanski, Anna E Kedzierska, Rafal Kolenda, Anna Jarzab, Agnieszka Biernatowska, Peter Schierack
It was suggested that minor differences in the structure of FimH are most likely associated with differences in its adhesion specificities and may determine the tropism of various Salmonella serovars to different species and tissues. We have recently shown that FimH adhesins from host-adapted serovars, e.g., Salmonella Choleraesuis (SCh), bind to other glycoprotein receptors compared to FimH from host-unrestricted Salmonella Enteritidis (SE). Here we identify porcine calreticulin expressed by swine intestinal cells as a host-specific receptor for SCh FimH adhesin, suggesting that such an interaction may contribute to SCh host specificity...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28764032/phenolic-acids-and-flavonoids-of-peanut-by-products-antioxidant-capacity-and-antimicrobial-effects
#9
Adriano Costa de Camargo, Marisa Aparecida Bismara Regitano-d'Arce, Gabriela Boscariol Rasera, Solange Guidolin Canniatti-Brazaca, Leonardo do Prado-Silva, Verônica Ortiz Alvarenga, Anderson S Sant'Ana, Fereidoon Shahidi
Peanut skin (PS) and meal from dry-blanched peanuts (MDBP) were evaluated as sources of phenolic compounds. PS rendered the highest total phenolic content, antioxidant capacity towards ABTS radical cation, DPPH and hydroxyl radicals as well as reducing power. Phenolic acids were present in PS and MDBP whereas proanthocyanidins and monomeric flavonoids were found only in PS as identified by HPLC-DAD-ESI-MS(n). Procyanidin-rich extracts prevented oxidation in non-irradiated and gamma-irradiated fish model system...
December 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28763946/synthesis-and-in-vitro-evaluation-of-peracetyl-and-deacetyl-glycosides-of-eugenol-isoeugenol-and-dihydroeugenol-acting-against-food-contaminating-bacteria
#10
Déborah Braga Resende, Heloísa Helena de Abreu Martins, Thiago Belarmino de Souza, Diogo Teixeira Carvalho, Roberta Hilsdorf Piccoli, Rosane Freitas Schwan, Disney Ribeiro Dias
Essential oils, as well as their separate components, have shown promise as alternatives to synthetic preservatives. Therefore, it would be interesting to optimize the effect of these compounds and to evaluate their applicability as additives in food. To this end, six peracetyl and deacetyl glycosides were synthesized from eugenol, isoeugenol and dihydroeugenol. All of the glycosides were characterized by IR and NMR. The synthesized compounds and their aglycones were evaluated to determine their minimal bactericidal concentrations (MBC) against the spoilage food bacteria Escherichia coli, Listeria monocytogenes, Staphylococcus aureus and Salmonella enteritidis...
December 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28759796/inhibition-of-salmonella-by-thyme-essential-oil-and-its-effect-on-microbiological-and-sensory-properties-of-minced-pork-meat-packaged-under-vacuum-and-modified-atmosphere
#11
Marija Boskovic, Jasna Djordjevic, Jelena Ivanovic, Jelena Janjic, Nemanja Zdravkovic, Milica Glisic, Natasa Glamoclija, Branislav Baltic, Vesna Djordjevic, Milan Baltic
The antibacterial activity of thyme essential oil (TEO) was evaluated against four serovars of Salmonella (S. Enteritidis, S. Typhimurium, S. Montevideo and S. Infantis), experimentally inoculated (10(6)CFU/g) in minced pork, which was treated with different concentrations of the TEO (0.3%, 0.6% and 0.9%) packaged under vacuum or MAP (30%O2/50%CO2/20% N2) and stored at 3±1°C for 15days. GC-MS analysis of the TEO was performed in order to determine composition, and the predominant constituent was thymol (50...
July 20, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/28756827/ground-water-as-the-source-of-an-outbreak-of-salmonella-enteritidis
#12
Ana Kovačić, Željko Huljev, Edita Sušić
In September 2014, an outbreak of gastroenteritis was reported to the Public Health Institute of Šibenik and Knin County in Croatia. The outbreak occurred in the County center of Šibenik, a town with 50,000 inhabitants, and it lasted for 12days. An epidemiological investigation suggested a nearby water spring as the source of the outbreak. Due to the temporary closure of the public water supply system, the inhabitants started to use untreated water from a nearby spring. Microbiological analysis revealed that the outbreak was caused by Salmonella enterica subsp...
September 2017: Journal of Epidemiology and Global Health
https://www.readbyqxmd.com/read/28755939/multiplex-pcr-coupled-with-propidium-monoazide-for-the-detection-of-viable-cronobacter-sakazakii-bacillus-cereus-and-salmonella-spp-in-milk-and-milk-products
#13
Shuang Yu, Leina Yan, Xin Wu, Fan Li, Dong Wang, Hengyi Xu
Cronobacter sakazakii, Bacillus cereus, and Salmonella spp. are common food-borne pathogens. The aim of this study was to develop a sensitive, specific, and rapid method for the simultaneous detection of these 3 pathogens in milk and milk products. Three specific primers were designed based on ompA, invA, and cesB of C. sakazakii, Salmonella spp. and B. cereus, respectively, for use in a multiplex PCR (mPCR). To eliminate false-positive results, cells were pretreated with propidium monoazide (PMA) for the selective elimination of the genomic DNA of dead cells...
July 26, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28754550/thoracic-aortitis-due-to-salmonella-enteritidis
#14
Jorge Galán Ros, José Ángel de Ayala Fernández, Ángel Escudero Jiménez
No abstract text is available yet for this article.
July 25, 2017: Revista Española de Cardiología
https://www.readbyqxmd.com/read/28752962/seabirds-laridae-as-a-source-of-campylobacter-spp-salmonella-spp-and-antimicrobial-resistance-in-south-africa
#15
Elisabet Moré, Teresa Ayats, Peter G Ryan, Preneshni R Naicker, Karen H Keddy, Davide Gaglio, Minke Witteveen, Marta Cerdà-Cuéllar
Zoonotic thermophilic Campylobacter and nontyphoidal Salmonella enterica are a major cause of foodborne human gastroenteritis worldwide. There is little information about reservoirs of these zoonotic agents in Africa. Thus, chicks of kelp gulls (Larus dominicanus, n=129) and greater crested terns (Thalasseus bergii, n=100) were studied at five colonies on the Western Cape coast (South Africa) during summer 2013/2014. Campylobacter spp. occurrence was 14.0% (CI95% : 9.9-19.3), with C. jejuni the most frequently isolated species, whilst that of Salmonella was 27...
July 28, 2017: Environmental Microbiology
https://www.readbyqxmd.com/read/28747906/characterization-of-integrons-and-resistance-genes-in-salmonella-isolates-from-farm-animals-in-shandong-province-china
#16
Xiaonan Zhao, Jie Yang, Baozhen Zhang, Shuhong Sun, Weishan Chang
A total of 154 non-duplicate Salmonella isolates were recovered from 1,105 rectal swabs collected from three large-scale chicken farms (78/325, 24.0%), three large-scale duck farms (56/600, 9.3%) and three large-scale pig farms (20/180, 11.1%) between April and July 2016. Seven serotypes were identified among the 154 isolates, with the most common serotype in chickens and ducks being Salmonella enteritidis and in pigs Salmonella typhimurium. Antimicrobial susceptibility testing revealed that high antimicrobial resistance rates were observed for tetracycline (72...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28740489/prophage-integrase-typing-is-a-useful-indicator-of-genomic-diversity-in-salmonella-enterica
#17
Anna Colavecchio, Yasmin D'Souza, Elizabeth Tompkins, Julie Jeukens, Luca Freschi, Jean-Guillaume Emond-Rheault, Irena Kukavica-Ibrulj, Brian Boyle, Sadjia Bekal, Sandeep Tamber, Roger C Levesque, Lawrence D Goodridge
Salmonella enterica is a bacterial species that is a major cause of illness in humans and food-producing animals. S. enterica exhibits considerable inter-serovar diversity, as evidenced by the large number of host adapted serovars that have been identified. The development of methods to assess genome diversity in S. enterica will help to further define the limits of diversity in this foodborne pathogen. Thus, we evaluated a PCR assay, which targets prophage integrase genes, as a rapid method to investigate S...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28740311/antimicrobial-resistance-and-typing-of-salmonella-isolated-from-street-vended-foods-and-associated-environment
#18
Anukampa, Bi Shagufta, M Sivakumar, Surender Kumar, Rajesh Kumar Agarwal, Kiran Narayan Bhilegaonkar, Ashok Kumar, Zunjar Baburao Dubal
The present study was carried out to find out the occurrence and types of Salmonella present in street vended foods and associated environment, and their resistance pattern against various antibiotics. About 1075 street vended food and associated environment samples were processed for isolation and confirmation of different Salmonella spp. by targeting gene specific invA gene and serotype specific Sdf I, Via B and Spy genes by PCR. Selected Salmonella isolates were screened for antibiotic resistance by using Baeur-Kirby disk diffusion test...
July 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28739413/production-of-recombinant-flagellin-to-develop-elisa-based-detection-of-salmonella-enteritidis
#19
Seyed Ali Mirhosseini, Abbas Ali Imani Fooladi, Jafar Amani, Hamid Sedighian
Food-borne diseases, caused by the pathogenic bacteria, are highly prevalent in the world. Salmonella is one of the most important bacterial genera responsible for this. Salmonella Enteritidis (SE) is one of the non-typhoid Salmonellae that can be transmitted to human from poultry products, water, and contaminated food. In recent years, new and rapid detection methods such as enzyme-linked immunosorbent assay (ELISA) and polymerase chain reaction (PCR) have been developed. In this study, recombinant FliC (rFliC) was produced to be used as an antigen...
July 7, 2017: Brazilian Journal of Microbiology: [publication of the Brazilian Society for Microbiology]
https://www.readbyqxmd.com/read/28732304/outbreak-of-salmonella-enteritidis-pt14b-gastroenteritis-at-a-restaurant-in-england-the-use-of-molecular-typing-to-achieve-a-successful-prosecution
#20
C Chatt, D Nicholds-Trainor, A Scrivener, S Suleman, M Harvey, T Dallman, J Hawker, B Sibal
OBJECTIVES: To describe an outbreak of Salmonella enteritidis phage type (PT) 14b in people who had eaten at a restaurant, and the investigation and subsequent prosecution of the food business operator (FBO). STUDY DESIGN: The local health protection team and environmental health department formed an outbreak control team to investigate the outbreak. METHODS: Epidemiological, microbiological, and environmental investigations were undertaken...
July 18, 2017: Public Health
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