Escherichia coli O157:H7

Wed, 06/27/2018 - 05:22
Publication date: Available online 26 June 2018 Author(s): Gillian A.M. Tarr, Hanna N. Oltean, Amanda I. Phipps, Peter Rabinowitz, Phillip I. Tarr Background The veracity of the association between antibiotic use and hemolytic uremic syndrome (HUS) caused by Escherichia coli O157:H7 has been a topic of debate. We postulated that criteria used to define HUS affect this association...
Sat, 06/23/2018 - 21:33
LWT
Publication date: November 2018 Source:LWT, Volume 97 Author(s): Yaru Li, Donggen Zhou, Shuangfang Hu, Xinglong Xiao, Yigang Yu, Xiaofeng Li The adaptability of Escherichia coli O157:H7 to different environmental stresses, including prolonged cold stress, poses a threat to food safety. In order to elucidate the prolonged cold response in E. coli O157:H7, genes related to prolonged...
Sun, 06/17/2018 - 23:43
Publication date: November 2018 , Volume 93 Author(s): Cheng-An Hwang, Lihan Huang The objective of this study was to investigate the growth of Escherichia coli O157:H7 in raw ground beef under competition from background flora. The growth of E. coli O157:H7 was observed in sterile irradiated and non-irradiated raw ground beef under dynamically changing temperature conditions. A one-step...
Fri, 06/15/2018 - 01:11
Lingzi Xiaoli, Hillary M. Figler, Kakolie Goswami Banerjee, Christopher S. Hayes, Edward G. Dudley
Thu, 06/14/2018 - 05:27
Publication date: October 2018 , Volume 112 Author(s): Ga-Hee Ban, Dong-Hyun Kang This study was performed to compare the effectiveness of saturated steam and superheated steam for the inactivation of Escherichia coli O157:H7, Salmonella typhimurium, and Listeria monocytogenes on the surface of cherry tomatoes and oranges. It also determined the effect of the steam processes on the color...
Sat, 06/09/2018 - 16:25
Publication date: December 2018 , Volume 76 Author(s): Kristina Eißenberger, Doris Moench, David Drissner, Agnes Weiss, Herbert Schmidt Increasing numbers of outbreaks caused by enterohemorrhagic Escherichia coli (EHEC) are associated with the consumption of contaminated fresh produce. The contamination of the plants may occur directly on the field via irrigation water, surface...
Wed, 06/06/2018 - 01:12
Alejandra Orihuel, Lucrecia Terán, Jenny Renaut, Graciela M. Vignolo, André M. De Almeida, María L. Saavedra, Silvina Fadda
Mon, 06/04/2018 - 15:57
Publication date: December 2018 , Volume 76 Author(s): Monika Trząskowska, Yue Dai, Pascal Delaquis, Siyun Wang Mung bean sprouts were implicated in several foodborne outbreaks worldwide in recent years. The objectives of this study were to (i) assess the efficacy of individual (mild heat) and combined treatments (mild heat followed by acetic acid or/and hydrogen peroxide) for the...
Sat, 05/19/2018 - 10:53
Publication date: 20 July 2018 , Volume 277 Author(s): Alonzo A. Gabriel, Jeffrey M. Ostonal, Jannelle O. Cristobal, Gladess A. Pagal, John Vincent E. Armada This study determined the inactivation kinetic parameters of selected pathogens in heat, ultraviolet-C and combined heat-UV-C treated coconut liquid endosperm. Separate cocktails of Escherichia coli O157:H7, Salmonella enterica...
Sat, 05/19/2018 - 10:53
Publication date: 2 August 2018 , Volume 278 Author(s): Tareq M. Osaili, Anas A. Al-Nabulsi, Taqwa F. Aljaafreh Tahini halva is a traditional sweet product that is consumed with bread in different countries. It is a low water activity (aw) product basically made by mixing and cooking tahini, sugar, citric acid and Saponaria officinalis root extract together. Tahini halva maybe...
Mon, 05/14/2018 - 20:00
Escherichia coli O157:H7 is an enteric foodborne pathogen associated with life threatening disease conditions. The enterobacteria are frequently found in cattle gastrointestinal tract with high potential of contaminating animal products such as meat, milk, and cheese. A cross-sectional study was conducted to investigate the presence of Shiga toxin-producing Escherichia coli O157:H7 in milk...
Mon, 05/14/2018 - 17:00
Kara B. Marley, Larry A. Kuehn, John W. Keele, Benjamin W. Wileman, Michael G. Gonda Individuals often respond differently to the same vaccine; some of this variation may be caused genetic differences among animals. Our objective was to estimate heritability and identify genomic regions associated with humoral response to an Escherichia coli O157:H7 vaccine in beef cattle. Crossbred beef cattle...
Mon, 05/14/2018 - 01:12
Sarah M. Hücker, Sonja Vanderhaeghen, Isabel Abellan-Schneyder, Siegfried Scherer, Klaus Neuhaus
Thu, 05/10/2018 - 03:00
Journal of Food Protection, Volume 81, Issue 6, Page 926-933, June 2018.
Wed, 05/09/2018 - 16:53
Publication date: June 2018 , Volume 219 Author(s): Vijay K. Sharma, Robert G. Schaut, Crystal L. Loving Escherichia coli O157:H7 (O157) can cause from a mild diarrheal illness to hemorrhagic colitis and hemolytic uremic syndrome in humans. Cattle are the primary reservoir for O157 and fecal shedding of O157 by these animals is a major risk factor in contamination of cattle hides and...
Wed, 05/09/2018 - 01:14
Adelumola Oladeinde, Erin Lipp, Chia-Ying Chen, Richard Muirhead, Travis Glenn, Kimberly Cook, Marirosa Molina
Fri, 05/04/2018 - 00:00
Publication date: Available online 3 May 2018 Author(s): Jiaojiao Han, Lei Zhang, Liming Hu, Keyu Xing, Xuefei Lu, Youju Huang, Jiawei Zhang, Weihua Lai, Tao Chen Lateral flow assay (LFA) has been applied in many fields due to its relative ease of use and cost-effectiveness. However, it has low sensitivity and its applications are limited. Probe materials play a significant...
Mon, 04/23/2018 - 01:11
Gitanjali NandaKafle, Amy A. Christie, Sébastien Vilain, Volker S. Brözel
Sat, 04/14/2018 - 00:00
Publication date: 2 June 2018 , Volume 274 Author(s): Huaiqiong Chen, Qixin Zhong Concerns about undesirable by-products from chlorine sanitation of fresh produce and the limited efficacy with the presence of organic matter, have led to studies on alternative washing solutions. The aim of this study was to evaluate the antibacterial activities of acidified sodium benzoate (NaB) solutions...
Sat, 04/14/2018 - 00:00
Publication date: 20 May 2018 , Volume 273 Author(s): Kathryn M. Wright, Nicola J. Holden Microgreens are edible plants used in food preparation for their appealing flavours and colours. They are grown beyond the point of harvest of sprouted seeds, and normally include the cotyledons and first true leaves. Their method of production is similar to sprouted seeds, which is known to be...
Sat, 04/14/2018 - 00:00
Publication date: 20 June 2018 , Volume 275 Author(s): Sang-Hyun Park, Dong-Hyun Kang The objective of this study was to evaluate how treatment temperature influences the solubility of ClO2 gas and the antimicrobial effect of ClO2 gas against Escherichia coli O157:H7, Salmonella Typhimurium, and Listeria monocytogenes on produce and food contact surfaces. Produce and food contact surfaces...
Fri, 04/13/2018 - 20:23
Publication date: June 2018 , Volume 108 Author(s): Hyein Jang, Karl R. Matthews Shiga toxin-producing Escherichia coli (STEC) has been associated with illnesses and outbreaks linked to fresh vegetables, prompting a growing public health concern. Most studies regarding interactions of STEC on fresh produce focused on E. coli O157:H7. Limited information is available about survival or...
Thu, 03/29/2018 - 01:14
Publication date: Available online 28 March 2018 Author(s): A. Bellio, D.M. Bianchi, N. Vitale, L. Vernetti, S. Gallina, L. Decastelli This study was conducted to describe the cheese-making procedure of Fontina Protected Designation of Origin (PDO) cheese and to evaluate the behavior of Escherichia coli O157:H7 during cheese manufacture and ripening. The study was divided into 2...
Wed, 12/27/2017 - 14:51
Publication date: 2 February 2018 , Volume 266 Author(s): James De Souza, Rafath Ahmed, Philip Strange, Shai Barbut, S. Balamurugan Dry fermented sausages (DFS) have been subject to numerous validation studies, as pathogen reduction heavily relies on both ingredients and processing. In this study the effect of product caliber size (32, 55, 80mm), and fat level (low, 9.67%; high, 18....
Wed, 12/27/2017 - 14:51
Publication date: 2 February 2018 , Volume 266 Author(s): Marilyn C. Erickson, Jye-Yin Liao, Cathy C. Webb, Mussie Y. Habteselassie, Jennifer L. Cannon Gloves are worn by workers harvesting ready-to-eat produce as a deterrent for contaminating the produce with enteric pathogens that may reside on their hands. As fields are not sterile environments, the probability for gloves to...
Sat, 12/23/2017 - 02:05
Summary Increased consumption of produce by consumers has been attributed to perceived health benefits of postharvest produce. Pathogen control is crucial because periodic occurrences and contamination of tomato and leafy greens have exacerbated food safety risks for consumers. We investigated the effects of temperatures (5 and 25 °C), storage time (30 min and 24 h) for inactivation of Listeria...
Sat, 12/16/2017 - 14:11
Publication date: 2 February 2018 , Volume 266 Author(s): Haiying Cui, Mei Bai, Marwan M.A. Rashed, Lin Lin This study aims to evaluate the antibacterial activity of clove oil-loaded chitosan nanoparticles (CO@CNPs) and gelatin electrospun nanofibers against Escherichia coli O157:H7 (E. coli O157:H7) biofilms on cucumbers. The optimal CO@CNPs were prepared when the initial...
Sat, 12/16/2017 - 04:21
Publication date: June 2018 , Volume 72 Author(s): Susana de Oliveira Elias, Tiago Baptista Noronha, Eduardo Cesar Tondo This study aimed to assess the growth of Salmonella and Escherichia coli O157:H7 on lettuce exposed to isothermal and non-isothermal conditions. Pathogens were inoculated on lettuce separately and stored under isothermal condition at 5 °C, 10 °C, 25 °C, 37 °C for both...
Fri, 12/15/2017 - 11:00
Cattle are the primary carrier of Escherichia coli O157:H7, a foodborne human pathogen, and those shedding >104 CFU/gram of feces of E. coli O157:H7 are defined as supershedders (SS). This study investigated the rectoanal junction (RAJ) mucosa-associated microbiota and its relationship with host gene expression in SS and in cattle from which E. coli O157:H7 was not detected (nonshedders [NS...
Sat, 12/09/2017 - 03:48
Publication date: June 2018 , Volume 72 Author(s): Sun-Ah Kwon, Won-Jae Song, Dong-Hyun Kang The purpose of this study was evaluation of the effectiveness of superheated steam (SHS) on inactivation of foodborne pathogens on cantaloupes and watermelons. Saturated steam (SS) treatment was performed at 100 °C and that of SHS at 150 and 200 °C. Escherichia coli O157:H7, Salmonella...
Thu, 12/07/2017 - 08:54
Abstract AimsMolecular subtyping is commonly used in foodborne disease surveillance and microbial source tracking. There is a knowledge gap regarding the molecular ecology of foodborne pathogens in non-food associated environments. The objective of this study was to isolate and subtype foodborne pathogens from pristine natural environments with minimal anthropogenic inputs. Materials and...
Thu, 12/07/2017 - 00:00
Abstract Washing and sanitation of fresh produce are critical for detachment and inactivation of pathogenic and spoilage microorganisms. The overall goal of this study was to evaluate the influence of processing conditions such as washing time, shear stress, and a food grade surfactant on the detachment of Escherichia coli O157:H7 from lettuce leaf surfaces during a simulated...
Wed, 12/06/2017 - 00:00
In this study, a rapid and sensitive method of real-time loop-mediated isothermal amplification (Rti-LAMP) assays was developed for quantification and discrimination of viable and heat-killed E. coli O157:H7 cells treated with low concentration of ethidium bromide monoazide (EMA). Four micrograms per milliliter of EMA was chosen as the optimal concentration which did not...
Thu, 11/30/2017 - 14:12
Publication date: April 2018 , Volume 86 Author(s): Marilyn C. Erickson, Jye-Yin Liao, Cathy C. Webb, Mussie Y. Habteselassie, Jennifer L. Cannon To minimize pathogen transfer from field worker's hands during hand harvest of ready-to-eat produce, gloves are often worn. However, fields are not sterile environments and transfer of pathogens to the gloves could occur throughout the day...
Thu, 11/23/2017 - 00:02
Publication date: March 2018 , Volume 137 Author(s): Erick F. de Oliveira, Juliano V. Tosati, Rohan V. Tikekar, Alcilene R. Monteiro, Nitin Nitin Sanitation of fresh produce is critical for reducing microbial load and preventing the risk of foodborne illness. This study evaluated an alternative approach for the inactivation of bacteria in wash water and fresh produce using curcumin...
Mon, 11/20/2017 - 04:55
Abstract AimsEnterohaemorrhagic Escherichia coli (EHEC) serotype O157:H7 as a major human pathogen is responsible for food borne outbreaks, bloody diarrhea, hemorrhagic colitis and hemolytic uremic syndrome (HUS) and even death. In this study, the antibacterial activity of the Zataria multiflora essential oil (ZMEO) and nanoliposome-encapsulated ZMEO was evaluated on the pathogenicity of...
Sun, 11/19/2017 - 23:50
Abstract Among minimally processed vegetables, shredded carrots are particularly popular. The aim of this study was to evaluate the antimicrobial activity of different washing treatments with aqueous solutions of mint essential oil (EO) (1:1000), mint hydrosol (1:10), and pomegranate juice (1:10) against two major foodborne pathogens on shredded carrots as well as their effect on carrot's quality...
Sat, 11/18/2017 - 19:08
Publication date: January 2018 , Volume 103 Author(s): Jeyachchandran Visvalingam, Richard A. Holley The effectiveness of 30 to 400ppm chlorine dioxide (CDO), acidified sodium chlorite (ASC) and peroxyacetic acid (PAA) to control Escherichia coli O157:H7 in beef was examined. Ground beef made from treated meat was vacuum packaged and stored at 4°C for 4d. CDO or ASC concentration by...
Sun, 11/12/2017 - 18:52
Publication date: 2 January 2018 , Volume 264 Author(s): Eiji Yokoyama, Shinichiro Hirai, Taichiro Ishige, Satoshi Murakami Seventeen clusters of Shiga toxin-producing Escherichia coli O157:H7/- (O157) strains, determined by cluster analysis of pulsed-field gel electrophoresis patterns, were analyzed using whole genome sequence (WGS) data to investigate this pathogen's molecular...

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