Escherichia coli O157:H7

Wed, 11/08/2017 - 19:00
Shiga toxin-producing Escherichia coli (STEC), including E. coli O157:H7, are responsible for numerous foodborne outbreaks annually worldwide. E. coli O157:H7, as well as pathogenic non-O157:H7 STECs, can cause l...
Wed, 11/08/2017 - 16:02
Publication date: April 2018 , Volume 70 Author(s): F. Ioanna, N.C. Quaglia, M.M. Storelli, D. Castiglia, E. Goffredo, A. Storelli, M. De Rosa, G. Normanno, A. Caputi Jambrenghi, A. Dambrosio The aim of this study was to assess the growth and survival of Escherichia coli O157:H7 during the manufacturing and ripening of Cacioricotta goat cheese. Goat milk was artificially...
Wed, 11/08/2017 - 16:02
Publication date: April 2018 , Volume 70 Author(s): Hyein Jang, Karl R. Matthews This study aimed to determine the influence of bacterial surface polysaccharides (cellulose, colanic acid, and lipopolysaccharide; LPS) on the colonization or survival of Escherichia coli O157:H7 on plants and the plant defense response. Survival of E. coli O157:H7 were evaluated on Arabidopsis thaliana and...
Wed, 11/01/2017 - 17:00
Yolande Bertin, Chloé Habouzit, Lysiane Dunière, Marie Laurier, Alexandra Durand, David Duchez, Audrey Segura, Delphine Thévenot-Sergentet, Federico Baruzzi, Frédérique Chaucheyras-Durand, Evelyne Forano The bovine gastrointestinal tract (GIT) is the main reservoir for enterohaemorrhagic Escherichia coli (EHEC) responsible for food-borne infections. Therefore, it is crucial to develop strategies...
Tue, 10/17/2017 - 02:31
Abstract AimIn this study, the effects of addition of salt to treatment with acids (one of several organic acids and salt in various solutions including rich or minimal broth, buffer, or distilled water) on the reduction of Escherichia coli O157:H7 were investigated. The protein expression profiles corresponding to acid stress (acetic acid) with or without salt addition were studied using a...
Tue, 10/10/2017 - 23:16
Publication date: November 2017 , Volume 100, Issue 11 Author(s): Baoqing Zhou, Taobo Liang, Zhongxu Zhan, Rui Liu, Fan Li, Hengyi Xu Escherichia coli O157:H7 and Salmonella spp. in milk are 2 common pathogens that cause foodborne diseases. An accurate, rapid, specific method has been developed for the simultaneous detection of viable E. coli O157:H7 and Salmonella spp. in milk....
Thu, 09/21/2017 - 01:11
Xiangyu Wang, Yanli Du, Ying Hua, Muqing Fu, Cong Niu, Bao Zhang, Wei Zhao, Qiwei Zhang, Chengsong Wan
Fri, 09/15/2017 - 11:04
Bacterial biofilm formation is linked to several infections and foodborne disease outbreaks. To address this challenge, there is an unmet need to develop rechargeable antimicrobial materials that can provide continuous sanitation of contact surfaces, especially in the food industry. This study was aimed at evaluating a novel rechargeable antimicrobial polymer formed using poly(vinyl alcohol-co-...
Sat, 09/09/2017 - 22:44
Publication date: Available online 9 September 2017 Source: Author(s): Shaomeng Wang, Fan Yang, Bin Yang The post-transcriptional regulator CsrA regulates multiple unrelated processes such as central carbon metabolism, motility, biofilm formation and bacterial virulence in different bacteria. However, regulation by CsrA in enterohemorrhagic Escherichia coli (EHEC) O157:H7 is still...
Fri, 09/08/2017 - 11:45
Abstract Salmonella, Shigella, and Escherichia coli O157:H7 contaminate similar types of food and cause foodborne disease. The objective of this study was to develop a selective enrichment broth for simultaneous enrichment of Salmonella Enteritidis, E. coli O157:H7, and Shigella flexneri (SES) using Bile salt No. 3, potassium tellurite, novobiocin sodium, and lithium chloride as selective agents...
Wed, 08/30/2017 - 13:39
Publication date: 2 November 2017 , Volume 260 Author(s): Natan V.B. Meira, Richard A. Holley, Keliani Bordin, Renata E.F. de Macedo, Fernando B. Luciano Escherichia coli O157:H7 is a foodborne pathogen that causes hemorrhagic colitis and hemolytic uremic syndrome. The low dose of infection and severity of the disease represent a concern to public health. Natural compounds have...
Wed, 08/30/2017 - 13:39
Publication date: 2 November 2017 , Volume 260 Author(s): Yezhi Fu, Amanda J. Deering, Arun K. Bhunia, Yuan Yao Biofilms formed by Escherichia coli O157:H7 on cantaloupe rind were characterized in this study. Cantaloupe rind pieces inoculated with E. coli O157:H7 B6-914 was sampled after 2, 12, and 24h incubation for imaging with cryo-scanning electron microscopy (Cryo-SEM) or...
Wed, 08/30/2017 - 03:00
Journal of Food Protection, Volume 80, Issue 10, Page 1641-1647, October 2017.
Wed, 08/23/2017 - 06:41
Abstract Detection of foodborne pathogens at very low levels is still a challenge. A custom-built multichannel surface plasmon resonance (SPR) biosensor and simultaneous enrichment broth (SEB) were used to develop a simultaneous detection method for 3 important foodborne pathogens, Escherichia coli O157:H7 (O157:H7), Salmonella enteritidis, and Listeria monocytogenes, at a very low level. These 3...
Sun, 08/20/2017 - 00:54
Publication date: February 2018 , Volume 84 Author(s): Susana Langa, Izaskun Martín-Cabrejas, Raquel Montiel, Ángela Peirotén, Juan L. Arqués, Margarita Medina Bioprotective effect of reuterin-producing Lactobacillus reuteri INIA P572 was assessed in cheeses artificially contaminated with Listeria monocytogenes and Escherichia coli O157:H7 and ripened for 30 days. Reuterin...
Tue, 08/15/2017 - 01:13
Anna J. Williams, Willie M. Cooper, Shawn Ramsaroop, Pierre Alusta, Dan A. Buzatu, Jon G. Wilkes
Wed, 08/02/2017 - 12:15
Publication date: 16 October 2017 , Volume 259 Author(s): S. Balamurugan, Rafath Ahmed, Anli Gao, Phil Strange The study examined the relative fate of the top six non-O157 shiga-toxin producing Escherichia coli (STEC) and E. coli O157:H7 during the manufacture of dry fermented sausages (DFS). Three separate batches of sausages containing a five-strain cocktail for each serogroup and...
Tue, 08/01/2017 - 11:03
Escherichia coli serotype O157:H7 is a zoonotic food- and waterborne bacterial pathogen that causes a high hospitalization rate and can cause life-threatening complications. Increasingly, E. coli O157:H7 infections appear to originate from fresh produce. Ruminants, such as cattle, are a prominent reservoir of E. coli O157:H7 in the United States. California is one of the most agriculturally...
Wed, 07/26/2017 - 07:27
Publication date: February 2018 , Volume 69 Author(s): Maria I. Tsiraki, Hany M. Yehia, Tahra Elobeid, Tareq Osaili, Hercules Sakkas, Ioannis N. Savvaidis The antimicrobial effect of citrus extract (at 1 mL/kg [C1] and 2 mL/kg [C2]) on naturally occurring microbiota and inoculated pathogens (E. coli O157:H7 and L. monocytogenes at ca. 6 log cfu/g) in the traditional Greek yogurt-...
Wed, 07/26/2017 - 01:10
Kathryn L. Kay, Frederick Breidt, Pina M. Fratamico, Gian M. Baranzoni, Gwang-Hee Kim, Amy M. Grunden, Deog-Hwan Oh
Mon, 07/24/2017 - 00:20
Abstract AimsThe objective of this study was to determine if the fecal microbiome has an association with E. coli O157:H7 prevalence and enumeration. Methods and ResultsPyrosequencing analysis of fecal microbiome was performed from feedlot cattle fed one of three diets: i) 94 heifers fed low concentrate (LC) diet, ii) 142 steers fed moderate concentrate (MC) diet, and iii) 132 steers fed high...
Wed, 07/05/2017 - 06:20
The presence of pathogens such as Escherichia coli O157:H7 (EC) represents risks to public health and to economy of Brazilian beef industry. In this context, the application of lactic acid (LA) is an efficient practice employed to reduce bacterial count without compromising consumer safety. Our aim was to verify the inhibitory effect of LA application combined with aging and different packaging...
Tue, 07/04/2017 - 12:39
Publication date: December 2017 , Volume 82 Author(s): Hui Shi, Zhuozhu Chen, Dong Chen, Jianquan Kan Lactic acid can induce sublethal injury of Escherichia coli. When conditions become favorable, injured E. coli can recover physiological function and fully virulence, which is a great concern in the field of food safety. The injury and recovery of E. coli O157:H7 and K-12 by lactic...
Sun, 07/02/2017 - 12:27
LWT
Publication date: November 2017 Source:LWT - Food Science and Technology, Volume 85, Part A Author(s): Yasuhiro Inatsu, Kamal Weerakkody, Md. Latiful Bari, Yukie Hosotani, Nobutala Nakamura, Susumu Kawasaki The present study evaluated the efficacy of using 100 mg/L sodium hypochlorite (NaClO) followed by a second wash with various organic acids in reducing natural bacterial...
Thu, 06/29/2017 - 00:09
Publication date: Available online 29 June 2017 Author(s): L. Martorelli, A. Albanese, D. Vilte, R. Cantet, A. Bentancor, G. Zolezzi, I. Chinen, C. Ibarra, M. Rivas, E.C. Mercado, A. Cataldi Problem addressed Shiga toxin-producing Escherichia coli (STEC) are a group of bacteria responsible for food-associated diseases. Clinical features include a wide range of symptoms...
Sun, 06/18/2017 - 13:26
Summary The purpose of this study was to evaluate the activity of a novel antimicrobial substance lauric arginate ester (LAE) against selected foodborne pathogens (Escherichia coli O157:H7, Listeria monocytogenes and Salmonella spp.) in biofilm. Minimal inhibitory concentration (MIC) and minimal bactericidal concentration (MBC) were determined and showed that LAE exhibits a strong antimicrobial...
Fri, 06/16/2017 - 00:30
Publication date: July 2017 , Volume 100, Issue 7 Author(s): Kai Luo, Liming Hu, Qi Guo, Chenghui Wu, Songsong Wu, Daofeng Liu, Yonghua Xiong, Weihua Lai Immunochromatographic assays (ICA) are widely used to detect pathogens. In this study, we used traditional gold nanoparticles (GNP), quantum dots (QD), fluorescent nanoparticles (FNP), and europium (Eu) (III) chelate...
Tue, 05/23/2017 - 03:20
ABSTRACT BACKGROUNDSome routes of transmission of E. coli O157:H7 to fresh produce include contaminated irrigation water and manure polluted soils. The aim of this study was to determine the genetic relationships of E. coli O157:H7 isolated from some produce growing region in Nigeria using Enterorepititive Intergenic Consensus Deoxyribonucleic Acid Fingerprinting (ERIC-PCR) analysis. A total of...
Fri, 05/19/2017 - 12:05
Abstract Biofilm formation is a growing concern in the food industry. Escherichia coli O157:H7 is one of the most important foodborne pathogens that can persists in food and food-related environments and subsequently produce biofilms. The efficacy of bacteriophage BPECO 19 was evaluated against three E. coli O157:H7 strains in biofilms. Biofilms of the three E. coli O157:H7 strains were grown on...
Thu, 05/18/2017 - 20:00
Control of foodborne pathogens is an important issue for the fruit juice industry and ohmic heating treatment has been considered as one of the promising antimicrobial interventions. However, to date, evaluati...
Sat, 05/06/2017 - 07:57
Publication date: Available online 5 May 2017 Author(s): Jinwoo Kim, Minsik Kim, Seongmi Kim, Sangryeol Ryu Escherichia coli O157:H7, a major foodborne pathogen, is a major public health concern associated with life-threatening diseases such as hemolytic uremic syndrome. To alleviate this burden, a sensitive and rapid system is required to detect this pathogen in various kinds of...
Wed, 05/03/2017 - 01:11
Vivek K. Bajpai, Shruti Shukla, Woon K. Paek, Jeongheui Lim, Pradeep Kumar, Pankaj Kumar, MinKyun Na
Fri, 04/28/2017 - 04:21
Abstract Natural alternate methods to control the spread of Shiga toxin-producing Escherichia coli (STEC) are important to prevent foodborne outbreaks. Quillaja saponaria aqueous bark extracts (QE), cleared by the U.S. Food and Drug Administration as a natural flavorant, contain bioactive polyphenols, tannins, and tri-terpenoid saponins with anti-inflammatory and antimicrobial activity. The...
Mon, 04/24/2017 - 01:07
Guillaume Le Bihan, Jean-Félix Sicard, Philippe Garneau, Annick Bernalier-Donadille, Alain P. Gobert, Annie Garrivier, Christine Martin, Anthony G. Hay, Francis Beaudry, Josée Harel, Grégory Jubelin
Tue, 04/18/2017 - 07:12
Publication date: 5 June 2017 , Volume 250 Author(s): Estelle Loukiadis, Clémence Bièche-Terrier, Catherine Malayrat, Franck Ferré, Philippe Cartier, Jean-Christophe Augustin Undercooked ground beef is regularly implicated in food-borne outbreaks involving pathogenic Shiga toxin-producing Escherichia coli. The dispersion of bacteria during mixing processes is of major concern for...
Mon, 04/17/2017 - 21:13
Publication date: September 2017 , Volume 79 Author(s): Kang Huang, Nitin Nitin Removal of foodborne bacterial pathogens from fresh produce during washing and sanitation process can significantly improve inactivation of the bacteria. Currently, produce wash systems mainly rely on mechanical forces to aid in removal of bacteria attached to the produce surface during washing and sanitation...
Tue, 04/11/2017 - 04:55
Abstract Internalisation of human pathogens in edible parts of vegetables eaten raw is a major concern, since once internalised they are protected from sanitising treatments. In this study, we examined invasion of gfp-labelled E. coli O157:H7 into intact and biotically (infection with Xanthomonas campestris/Pseudomonas syringae) and abiotically (grating with silicon carbide) damaged leaves of...
Mon, 04/03/2017 - 03:00
Journal of Food Protection, Volume 80, Issue 5, Page 792-798, May 2017.
Tue, 03/21/2017 - 07:36
Publication date: August 2017 , Volume 65 Author(s): Alicia Campion, Ruth Morrissey, Des Field, Paul D. Cotter, Colin Hill, R. Paul Ross Cronobacter sakazakii and Escherichia coli O157:H7 are well known food-borne pathogens that can cause severe disease. The identification of new alternatives to heating to control these pathogens in foods, while reducing the impact on...

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