Bacterial pathogens

Wed, 03/08/2017 - 04:15
Publication date: Available online 7 March 2017 Author(s): Lili Wang, Hiromi Nakamura, Eriko Kage-Nakadai, Yukiko Hara-Kudo, Yoshikazu Nishikawa Diarrheagenic E. coli (DEC) isolates were recovered from local retail markets and the Osaka Municipal Central Wholesale Market in Japan. Retail food samples were collected for analysis in Osaka Japan from 2005 to 2008 and consisted of 32...
Wed, 03/08/2017 - 03:00
Journal of Food Protection, Volume 80, Issue 4, Page 545-550, April 2017.
Wed, 03/08/2017 - 03:00
Journal of Food Protection, Volume 80, Issue 4, Page 561-566, April 2017.
Wed, 03/08/2017 - 03:00
Journal of Food Protection, Volume 80, Issue 4, Page 573-581, April 2017.
Wed, 03/08/2017 - 01:12
Patricia Hingston, Jessica Chen, Bhavjinder K. Dhillon, Chad Laing, Claire Bertelli, Victor Gannon, Taurai Tasara, Kevin Allen, Fiona S. L. Brinkman, Lisbeth Truelstrup Hansen, Siyun Wang
Tue, 03/07/2017 - 22:02
Publication date: August 2017 , Volume 78 Author(s): Mohammad Sadekuzzaman, Sungdae Yang, Md. Furkanur Rahaman Mizan, Hyung-Suk Kim, Sang-Do Ha Listeria monocytogenes can persist and form biofilms in a food environment which are difficult to eradicate because biofilms are inherently resistant to a variety of antimicrobial treatments. Therefore, alternative approaches such as...
Tue, 03/07/2017 - 22:02
Publication date: August 2017 , Volume 78 Author(s): Robson A.M. Machado, Catherine N. Cutter This project evaluated the impact of a food safety and sanitation training program, developed for farmstead cheesemakers, by investigating its effects on the cleanliness of cheesemaking rooms of dairy farms in Pennsylvania. Participating farms (n = 16) were divided randomly into control (n = 6;...
Tue, 03/07/2017 - 19:00
Escherichia coli O157:H7 (O157) strain 86–24, linked to a 1986 disease outbreak, displays curli- and biofilm-negative phenotypes that are correlated with the lack of Congo red (CR) bin...
Tue, 03/07/2017 - 17:00
Mario Santoro, Nicola D’Alessio, Anna Cerrone, Maria Gabriella Lucibelli, Giorgia Borriello, Gaetano Aloise, Clementina Auriemma, Nunzia Riccone, Giorgio Galiero Canine monocytic ehrlichiosis and rickettsiosis are zoonotic tick-borne diseases of canids caused the intracellular obligate bacteria Ehrlichia canis and Rickettsia species respectively. In this study, we investigated using standard and...
Tue, 03/07/2017 - 04:15
Publication date: 16 May 2017 , Volume 249 Author(s): Dara Leong, Kerrie NicAogáin, Laura Luque-Sastre, Oisin McManamon, Karen Hunt, Avelino Alvarez-Ordóñez, Johann Scollard, Achim Schmalenberger, Séamus Fanning, Conor O'Byrne, Kieran Jordan The problem of assessing the occurrence of the food-borne pathogen Listeria monocytogenes in the food chain, and therefore the risk...
Tue, 03/07/2017 - 01:10
Pavan K. Pesingi, Manoj Kumawat, Pranatee Behera, Sunil K. Dixit, Rajesh K. Agarwal, Tapas K. Goswami, Manish Mahawar
Mon, 03/06/2017 - 22:00
Publication date: August 2017 , Volume 78 Author(s): Zihao Zhou, Jingwen Li, Huijuan Zheng, Xuanchen Jin, Yang Shen, Tianyao Lei, Xinyu Sun, Zhiming Pan, Xinan Jiao In order to ascertain the contamination status of Salmonella from carcass, equipment, environment and the intestinal contents in a pig slaughterhouse in Huaian, China, we investigated the prevalence and...
Mon, 03/06/2017 - 03:03
Publication date: August 2017 , Volume 65 Author(s): Lourdes García-Sánchez, Beatriz Melero, Isabel Jaime, Marja-Liisa Hänninen, Mirko Rossi, Jordi Rovira Campylobacteriosis is the most common cause of bacterial gastroenteritis worldwide. Consumption of poultry, especially chicken’s meat is considered the most common route for human infection. The aim of this study was to...
Mon, 03/06/2017 - 02:30
Abstract AimsThe spread of bacteria that are simultaneously resistant to disinfectants and antimicrobials would constitute an unsettling scenario. In order to explore an association between antimicrobial resistance and reduced susceptibility to biocides / microbicides like disinfectants in agriculture, we investigated Escherichia (E.) coli (n = 438) and enterococci (n = 120) isolated from six...
Sat, 03/04/2017 - 02:10
Abstract AimsTo identify production and processing practices that might reduce Campylobacter numbers contaminating chicken broiler carcasses. Methods and ResultsNumbers of campylobacters were determined on carcass neck skins after processing or in broiler house litter samples. Supplementary information that described farm layouts, farming conditions for individual flocks, the slaughterhouse...
Sat, 03/04/2017 - 00:00
Abstract Bacteria belonging to the genus Vibrio are very common to marine and estuarine environments and are found in association with marine plants and animals. Vibrio parahaemolyticus strains that produce thermostable direct hemolysin (TDH) and TDH-related hemolysin (TRH), toxigenic strains of Vibrio cholerae belonging to the serogroups O1 and O139, and Vibrio vulnificus are...
Sat, 03/04/2017 - 00:00
Abstract This study examined the antibacterial activity of Thymus vulgaris on multiple antibiotic resistant (MAR) Vibrio parahaemolyticus and Vibrio fluvialis isolated from shrimps. The ethanol extract of T. vulgaris antibacterial properties was assessed using the agar diffusion method. Survival of test organisms in shrimp meat using different concentrations of T. vulgaris was...
Fri, 03/03/2017 - 06:30
Abstract This study was conducted to investigate the effects of aerosolized malic acid and ultraviolet light (UV-C) for inhibiting the growth of foodborne pathogens, Escherichia coli O157:H7, Salmonella Typhimurium, and Listeria monocytogenes, on fresh-cut lettuce. The antimicrobial effects of aerosolized 2% malic acid and UV-C, alone or in combination, were tested. Ten grams of lettuce were...
Fri, 03/03/2017 - 06:25
Abstract An antimicrobial and antioxidant film based on cassava starch incorporated with oregano essential oil (2% w/v) and pumpkin residue extract (3% w/v) was developed for application onto ground beef. A control film (without additives) was used for comparison. The film's physical, barrier, antioxidant (DPPH), and antimicrobial properties were analyzed. The addition of oil does not contribute...
Fri, 03/03/2017 - 06:20
Abstract This study investigated microbial population shifts on citrus carpoplane and the impact of irrigation and packhouse processing water in four commercial farms. Samples included oranges (n = 450) and water (n = 230). Mean microbial concentrations ranging from 1.6 to 3.6 log colony forming units (CFU)/cm2 were detected on unwashed fruit and were reduced at least by 2.0 log CFU/cm2 for...
Fri, 03/03/2017 - 06:20
Abstract One of the factors contributing to foodborne illnesses is improper cleaning and sanitization of food contact surfaces. This study aimed to investigate the influence of various factors on Staphylococcus aureus attachment and biofilm formation on food contact materials and to determine sanitizing efficacy. The factors examined were contact materials (stainless steel, SUS; glass, GL;...
Fri, 03/03/2017 - 06:15
Abstract The aim of this study was to investigate the inhibitory effect of lactococcin BZ produced by Lactococcus lactis spp. lactis BZ against Listeria monocytogenes in raw beef. Lactococcin BZ depending on concentration (400–3,200 AU/ml) reduced the counts of L. monocytogenes attached to meat surface (from 4.71 log CFU/g to undetectable level, and from 7.92 to 3.64 log CFU/g) in 5 min. When...
Fri, 03/03/2017 - 01:55
Abstract AimsThis study used high-throughput sequencing to evaluate the intestinal microbiome dynamics in rainbow trout (Oncorhynchus mykiss) fed commercial diets supplemented with either pre- or probiotics (0.6% mannan-oligosaccharides and 0.5% Saccharomyces cerevisiae respectively) or the mixture of both. Methods and ResultsA total of 57 fish whole intestinal mucosa and contents bacterial...
Fri, 03/03/2017 - 00:00
<span class="paragraphSection"><div class="boxTitle">Abstract</div>Supplementation of poultry diets with Diamond V Original XPC™ (XPC) has been proposed as a means to ameliorate the commonly observed loss of appetite and depression of growth in birds given a live coccidiosis vaccine. A study was conducted to compare the effects on bird performance of a live coccidiosis vaccine...
Thu, 03/02/2017 - 21:53
Publication date: Available online 2 March 2017 Source:Microbial Risk Analysis Author(s): Mary E. Schoen, Nicholas J. Ashbolt, Michael A. Jahne, Jay Garland This paper presents risk-based enteric pathogen log reduction targets for non-potable and potable uses of a variety of alternative source waters (i.e., locally-collected greywater, roof runoff, and stormwater). A probabilistic...
Thu, 03/02/2017 - 19:00
Ethiopia bears the largest burden of foodborne diseases in Africa, and diarrheal diseases are the second leading causes of premature deaths. Enterohemorrhagic Escherichia coli O157 causes an asymptomatic infectio...
Thu, 03/02/2017 - 14:19
Publication date: Available online 2 March 2017 Author(s): Dong Yang, Xiaoli Wu, Xiaomin Yu, Lihua He, Nagendra P. Shah, Feng Xu In this paper, Bifidobacterium bifidum WBBI03 and Listeria monocytogenes CMCC 54001 were selected to detect the changes in their growth pattern after mutual interaction between them. The proteomic changes after the interaction between the 2 bacteria...
Thu, 03/02/2017 - 11:30
Summary LeuO is a conserved LysR-type transcription factor of pleiotropic function in Enterobacteria. Regulation of the leuO gene has been best studied in Escherichia coli and Salmonella enterica. Its expression is silenced by the nucleoid-associated proteins H-NS and StpA, autoregulated by LeuO, and in E. coli activated by the transcription regulator BglJ-RcsB. However, signals which induce leuO...
Thu, 03/02/2017 - 11:00
Construction of Listeria monocytogenes mutants by allelic exchange has been laborious and time-consuming due to lack of proficient selection markers for the final recombination event, that is, a marker conveying substance sensitivity to the bacteria bearing it, enabling the exclusion of merodiploids and selection for plasmid loss. In order to address this issue, we engineered a counterselection...
Thu, 03/02/2017 - 11:00
Chicken meat products are hypothesized to be vehicles for transmitting antimicrobial-resistant and extraintestinal pathogenic Escherichia coli (ExPEC) to consumers. To reassess this hypothesis in the current era of heightened concerns about antimicrobial use in food animals, we analyzed 175 chicken-source E. coli isolates from a 2013 Consumer Reports national survey. Isolates were screened by PCR...
Thu, 03/02/2017 - 11:00
This study developed RNA-based predictive models describing the survival of Vibrio parahaemolyticus in Eastern oysters (Crassostrea virginica) during storage at 0, 4, and 10°C. Postharvested oysters were inoculated with a cocktail of five V. parahaemolyticus strains and were then stored at 0, 4, and 10°C for 21 or 11 days. A real-time reverse transcription-PCR (RT-PCR) assay targeting...
Thu, 03/02/2017 - 07:42
Publication date: August 2017 , Volume 78 Author(s): Marcello Trevisani, Annachiara Berardinelli, Chiara Cevoli, Matilde Cecchini, Luigi Ragni, Frederique Pasquali The main objective of this study was to evaluate the synergistic effect of atmospheric cold plasma (ACP), Sodium Dodecyl Sulphate (SDS) and lactic acid (LA) on L. monocytogenes and verotoxin-producing E. coli in red...
Thu, 03/02/2017 - 07:42
Publication date: August 2017 , Volume 78 Author(s): Jasim Ahmed, Mehrajfatema Mulla, Yasir Ali Arfat The synergistic effects of combined high-pressure (HP) treatment and active packaging consisting of polylactide (PLA), polyethylene glycol (PEG) and cinnamon oil (CIN) on the inactivation and inhibition of Listeria monocytogenes and Salmonella Typhimurium in chicken samples during the...
Thu, 03/02/2017 - 07:42
Publication date: July 2017 , Volume 77 Author(s): Andrew G. Gehring, Pina M. Fratamico, Joseph Lee, Leah E. Ruth, Xiaohua He, Yiping He, George C. Paoli, Larry H. Stanker, Fernando M. Rubio Two enzyme-linked immunosorbent assay (ELISA) kits were evaluated for their effectiveness in detecting and differentiating between Shiga toxin 1 and 2 (Stx1 and Stx2) produced by Shiga...
Thu, 03/02/2017 - 01:12
Bojan Papić, Mateja Pate, Urška Henigman, Urška Zajc, Igor Gruntar, Majda Biasizzo, Matjaž Ocepek, Darja Kušar
Thu, 03/02/2017 - 01:12
Peng Fei, Yujun Jiang, Jing Feng, Stephen J. Forsythe, Ran Li, Yanhong Zhou, Chaoxin Man
Wed, 03/01/2017 - 20:26
Publication date: Available online 1 March 2017 Source: Author(s): Dongdong Wang, Yuhuan Yue, Guangmou Wu, Yuan Tian, Yuling Liu, Jia Yu, Yuangang Ji, Jinpeng Wang, Jian Li, Rongrong Pan, Hongyuan Ma, Guoli Zhang Alpha-toxin produced by Clostridium perfringens is an important virulence factor, causing food poisoning and gas gangrene in humans. As such, it is considered...
Wed, 03/01/2017 - 19:00
Multilocus variable-number tandem repeat analysis (MLVA) is a rapid and reproducible typing method that is an important tool for investigation, as well as detection, of national and multinational outbreaks of a range of food-borne pathogens. Salmonella enterica serovar Enteritidis is the most common Salmonella serovar associated with human salmonellosis in the European Union/European Economic...
Wed, 03/01/2017 - 00:00
Abstract A novel multiplex real-time PCR called AllBaktB is presented for the simultaneous determination of DNA from Escherichia coli, Clostridium perfringens, Staphylococcus aureus and Bacillus cereus in food samples. This semi-automated procedure involves a simplified nonselective enrichment and a single isolation step for all bacterial DNA. The results can be gained within...
Wed, 03/01/2017 - 00:00
<span class="paragraphSection"><div class="boxTitle">Abstract</div><span style="font-style:italic;">Salmonella</span> Enteritidis (SE) is a foodborne pathogen that negatively affects both animal and human health. Polymorphisms of the <span style="font-style:italic;">TLR4</span> gene may affect recognition by Toll-like receptor 4 (TLR4) of bacterial...
Wed, 03/01/2017 - 00:00
<span class="paragraphSection"><div class="boxTitle">Abstract</div>Biological supplements in poultry feed are of continued interest due to the improvements in growth performance, protection from pathogen invasion, and benefits in overall host health. The fermentation metabolites of Diamond V Original XPC™ (XPC) have previously been shown to improve commercial performance and...
Tue, 02/28/2017 - 21:08
Publication date: Available online 27 February 2017 Source:Microbial Risk Analysis Author(s): Luís Gustavo Corbellini, Eduardo de Freitas Costa, Marisa Cardoso, Maarten Nauta Dry fermented sausage (salami) is a very popular ready-to-eat product in Southern Brazil, of which the raw materials can be contaminated with pathogens such as Salmonella. This product can put consumers at risk...
Tue, 02/28/2017 - 19:00
After E. coli O157, E. coli O26 is the second most prevalent enterohaemorrhagic E. coli (EHEC) serotype identified in cases of foodborne illness in Australia and throughout the world. E. coli O26 associated foodb...
Tue, 02/28/2017 - 11:40
The toxigenic classical and El Tor biotype Vibrio cholerae serogroup O1 strains are generated by lysogenization of host-type–specific cholera toxin phages (CTX phages). Experimental evidence of the replication and transmission of an El Tor biotype-specific CTX phage, CTX-1, has explained the evolution of V. cholerae El Tor biotype strains. The...
Tue, 02/28/2017 - 10:55
Abstract AimsSilage is grass, preserved by fermentation and used as winter feed for cattle. The impact of a range of current grass silage preparation practices on the survival of Escherichia coli C600φ3538(Δvtx2::cat) and on the induction, release and infectivity of free phage were investigated. Methods and ResultsWilted and fresh grass samples, from plots with and without slurry application were...

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