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Bacterial pathogens

Thu, 06/20/2019 - 01:06
Publication date: Available online 10 June 2019Source: LWTAuthor(s): Sujogya Kumar Panda, Yugal Kishore Mohanta, Laxmipriya Padhi, Walter LuytenAbstractThe anti-microbial activity of crude extracts (hexane, acetone, ethanol, and aqueous) of 46 edible plants from Odisha, India, was studied using a broth microdilution assay against 8 common food-borne pathogens (Gram-positive: Bacillus cereus...
Thu, 06/20/2019 - 01:06
Publication date: Available online 8 June 2019Source: LWTAuthor(s): Kush Kumar Pandey, Shiv Kumar Sood, Surya Kant Verma, Sandeep Kumar, Suman Rani, Sangita GanguliAbstractThe aim of this study was to develop a process for utilization of paneer whey, a dairy industry waste, for fermentation and production of food grade paneer making powder with biopreservative potential. For achieving this,...
Wed, 06/19/2019 - 17:00
Chenggong Ji, Shuo Du, Peng Li, Qinyu Zhu, Xiaoke Yang, Chunhong Long, Jin Yu, Feng Shao, Junyu Xiao The guanylate-binding proteins (GBPs) belong to the dynamin superfamily of GTPases and function in cell-autonomous defense against intracellular pathogens. IpaH9.8, an E3 ligase from the pathogenic bacterium Shigella flexneri, ubiquitinates a subset of GBPs and leads to their proteasomal...
Wed, 06/19/2019 - 01:16
Available online 18 June 2019 Author(s): Yoyeon Cha, Bokyung Son, Sangryeol RyuAbstractStaphylococcal biofilms are recognized as a significant problem in the food industry because of their high resistance to antibiotics, and the use of bacteriophages or endolysins has been regarded as a promising alternative to antibiotics. In this study, LysCSA13, an endolysin from S. aureus virulent...
Wed, 06/19/2019 - 01:16
Available online 17 June 2019 Author(s): Chloé Modugno, Souhir Kmiha, Hélène Simonin, Chedia Aouadhi, Esther Diosdado Cañizares, Emilie Lang, Stéphane André, Slah Mejri, Abderrazak Maaroufi, Jean-Marie Perrier-CornetAbstractToday, there is no effective non-thermal method to inactivate unwanted bacterial spores in foods. High-Pressure (HP) process has been shown to act synergistically with...
Wed, 06/19/2019 - 01:16
Available online 18 June 2019 Author(s): Nikhil Kumar Mahnot, Charu Lata Mahanta, Brian E. Farkas, Kevin M. Keener, N.N. MisraAbstractIn the current work we evaluated the effect of atmospheric cold plasma (ACP) generated in air and M65 (65% O2, 30% CO2, 5%N2) as working gases for inactivation of Escherichia coli and Listeria monocyotogenes in tender coconut water. A 5 log10 reduction in the...
Wed, 06/19/2019 - 01:16
Available online 17 June 2019 Author(s): Zilei Zhang, Danlei Liu, Yalong Bai, Yan Cui, Dapeng Wang, Xianming ShiAbstractDNA aptamers are promising candidates for bio-recognition assays due to their accumulation in bacterial cells. This feature can be used to identify specific pathogens in food samples. However, the conventional process of aptamer screening by randomly picking bacterial plate...
Wed, 06/19/2019 - 01:07
Publication date: September 2019Source: LWT, Volume 112Author(s): Mónica Dávila-Rodríguez, Aurelio López-Malo, Enrique Palou, Nelly Ramírez-Corona, María Teresa Jiménez-MunguíaAbstractNanoemulsions formulated with essential oils (EOs) can be applied to bacteria found on fresh food, however, scarce information is still available. This study aimed to evaluate the antimicrobial activities of EOs of...
Wed, 06/19/2019 - 00:00
Toxins, Vol. 11, Pages 356: An Eye on Staphylococcus aureus Toxins: Roles in Ocular Damage and Inflammation Toxins doi: 10.3390/toxins11060356 Authors: Roger Astley Frederick C. Miller Md Huzzatul Mursalin Phillip S. Coburn Michelle C. Callegan Staphylococcus aureus (S. aureus) is a common pathogen of the eye, capable of infecting external tissues such as the tear duct,...
Tue, 06/18/2019 - 20:00
Campylobacter jejuni is the leading cause of bacterial gastroenteritis (campylobacteriosis) in humans worldwide, and the most frequent pathogen associated with Guillain-Barré syndrome (GBS) and Miller-Fisher synd...
Tue, 06/18/2019 - 20:00
Antimicrobial resistance was determined for 341 thermophilic Campylobacter jejuni isolates obtained from human clinical cases (n = 101), broiler products (n = 98), dairy cattle (n = 41) and wild birds (n = 101) with known multilocus sequence types (MLST) in Lithuania. The minimum inhibitory concentration (MIC) values for ciprofloxacin, tetracycline, gentamycin, ceftriaxone and erythromycin were...
Tue, 06/18/2019 - 17:00
Venkata Raghava Mohan, Santosh Raj, Mandeep Singh Dhingra, Naveena Aloysia D’Cor, Ajit Pal Singh, Tarun Saluja, Deok Ryun Kim, Venkat Jayanth Midde, Yanghee Kim, Sridhar Vemula, Santhosh Kumar Narla, Binod Sah, Mohammad Ali This open-label study assessed the safety and immunogenicity of two doses (14 days apart) of an indigenously manufactured, killed, bivalent (Vibrio cholerae O1 and O139),...
Tue, 06/18/2019 - 13:35
Publication date: Available online 18 June 2019 Food BioscienceAuthor(s): Seoung Hyuk Kim, Wang June Kim, Seok-Seong KangAbstractThe inhibitory effect of Lactobacillus brevis DF01 and Pediococcus acidilactici K10, which had been isolated from kimchi, on enteropathogenic bacterial adhesion to intestinal epithelial cells as well as their probiotic potential was studied. After the incubation of Lb....
Tue, 06/18/2019 - 12:48
The adaptive in vivo mechanisms underlying the switch in Salmonella enterica lifestyles from the infectious form to a dormant form remain unknown. We employed Caenorhabditis elegans as a heterologous host to understand the temporal dynamics of Salmonella pathogenesis and to identify its lifestyle form in vivo. We discovered that Salmonella...
Tue, 06/18/2019 - 01:12
Available online 16 June 2019 Author(s): Gabriele Meroni, Valentina Zamarian, Cristina Prussiani, Valerio Bronzo, Cristina Lecchi, Piera Anna Martino, Fabrizio CecilianiAbstractStaphylococcus aureus biofilm-related infections are of clinical concern due to the capability of bacterial colonies to adapt to a hostile environment. The present study investigated the capability of the acute phase...
Mon, 06/17/2019 - 20:00
This study aims to investigate and compare the complete nucleotide sequences of the multidrug resistance plasmids pVb0267 and pVb0499, which were recovered from foodborne Vibrio parahaemolyticus isolates, and analyze the genetic environment of blaCTX-M-55 to provide insight into the dissemination mechanisms of this resistance element. Analysis of the sequences of plasmids pVb0267 (166,467 bp) and...
Mon, 06/17/2019 - 20:00
Peroxyacetic acid (PAA) is widely applied in fresh apple packing facilities to reduce foodborne pathogens on fresh apples. However, there is limited data regarding its practical efficacy against Listeria monocytogenes on fresh apples. This study evaluated the antimicrobial activity of PAA against L. monocytogenes on fresh apples applicable to current industry practice, and further examined...
Mon, 06/17/2019 - 13:13
SUMMARY Vibrio vulnificus is a siderophilic pathogen spreading due to global warming. The zoonotic strains constitute a clonal‐complex related to fish farms that are distributed worldwide. In this study, we applied a transcriptomic and single gene approach and discover that the zoonotic strains bypassed the iron requirement of the species thanks to the acquisition of two iron‐regulated outer...
Mon, 06/17/2019 - 13:13
SUMMARY Vibrio vulnificus is a siderophilic pathogen spreading due to global warming. The zoonotic strains constitute a clonal‐complex related to fish farms that are distributed worldwide. In this study, we applied a transcriptomic and single gene approach and discover that the zoonotic strains bypassed the iron requirement of the species thanks to the acquisition of two iron‐regulated outer...
Mon, 06/17/2019 - 13:13
Abstract Aims The control of Listeria monocytogenes biofilm formation using lactocin AL705 bacteriocin at sub‐MICs through an anti‐quorum sensing strategy, was preliminarily investigated. Methods and Results The screening for biofilm formation of different Listeria species at 10 °C allowed selecting L. monocytogenes FBUNT for its use as biofilm producer. Minimum inhibitory concentration (MIC)...
Mon, 06/17/2019 - 11:52
Abstract The fruit of Terminalia chebula Retz., or Tibet Olive, is widely used as a food supplement in China. It possesses some natural antimicrobial properties; however, its chemical composition and antivirulence effects have not been identified. In this work, 29 compounds were identified from the peel of T. chebula fruit by ultra‐high‐performance liquid chromatography‐tandem quadrupole time‐of‐...
Mon, 06/17/2019 - 11:00
Methylmercury (MeHg) is a potent bioaccumulative neurotoxin that is produced by certain anaerobic bacteria and archaea. Mercury (Hg) methylation has been linked to the gene pair hgcAB, which encodes a membrane-associated corrinoid protein and a ferredoxin. Although microbial Hg methylation has been characterized in vivo, the cellular biochemistry and the specific roles of the gene products HgcA...
Mon, 06/17/2019 - 11:00
Ceftiofur, a third-generation cephalosporin antimicrobial, was used in Canadian hatcheries for many years to prevent early mortality in chicks, leading to a high prevalence of cephalosporin resistance in Escherichia coli in chickens. Preventive use of ceftiofur in hatcheries ceased in 2014. We examined the effect of ceftiofur cessation (n = 40 flocks with ceftiofur and n = 28 flocks without...
Mon, 06/17/2019 - 11:00
The effectiveness of antibiotics has been challenged by the increasing frequency of antimicrobial resistance (AMR), which has emerged as a major threat to global health. Despite its negative impact on the development of AMR, there are few effective strategies for reducing AMR in food-producing animals. Using whole-genome sequencing and comparative genomics of 36 multidrug-resistant (MDR)...
Mon, 06/17/2019 - 01:15
Available online 16 June 2019 Author(s): Paolo Bonilauri, Maria Silvia Grisenti, Paolo Daminelli, Giuseppe Merialdi, Mattia Ramini, Lia Bardasi, Roberta Taddei, Elena Cosciani-Cunico, Elena Dalzini, Maria Angela Frustoli, Federica Giacometti, Silvia Piva, Andrea SerrainoAbstractThis study involved ten enterprises producing Italian salami, 20 different samples of fermented sausages underwent...
Mon, 06/17/2019 - 01:15
Available online 15 June 2019 Author(s): Ifeoluwa Adekoya, Adewale Obadina, Momodu Olorunfemi, Olamide Akande, Sofie Landschoot, Sarah De Saeger, Patrick NjobehAbstractIn Africa, fermented foods and beverages play significant roles in contributing to food security. Endotoxins are ubiquitous heat stable lipopolysaccharide (LPS) complexes situated in the outer cell membranes of Gram-negative...
Sun, 06/16/2019 - 01:12
Available online 14 June 2019 Author(s): Yu-Lin Lee, Min-Chi Lu, Pei-Lan Shao, Po-Liang Lu, Yen-Hsu Chen, Shu-Hsing Cheng, Wen-Chien Ko, Chi-Ying Lin, Ting-Shu Wu, Muh-Yong Yen, Lih-Shinn Wang, Chang-Pan Liu, Wen-Sen Lee, Zhi-Yuan Shi, Yao-Shen Chen, Fu-Der Wang, Shu-Hui Tseng, Chao-Nan Lin, Yu-Hui Chen, Wang-Huei ShengAbstractWe performed multicentre surveillance of the antimicrobial...
Sat, 06/15/2019 - 01:07
Available online 13 June 2019 Author(s): Qin Liu, Xiaoxuan Jin, Xiao Feng, Hongshun Yang, Caili FuAbstractIn the present study, the synergistic disinfection efficacy of low concentration electrolyzed water (LcEW) (free available chlorine, 4 mg/L) combined with brief heat enhancement was evaluated and the bactericidal mechanism was investigated by atomic force microscopy (AFM). The inactivation...
Sat, 06/15/2019 - 01:07
Available online 12 June 2019 Author(s): Hang Qi, Yen-Con HungAbstractActivated persulfate could be an alternative sanitizer for fresh produce decontamination. This study is the first in reporting the potential of activated persulfate in reducing Escherichia coli O157:H7 and Listeria monocytogenes from romaine lettuce surface. Ferrous sulfate and sodium hydroxide were used as the activators. Both...
Sat, 06/15/2019 - 01:07
Available online 14 June 2019 Author(s): Sandy Thao, Maria T. Brandl, Michelle Qiu CarterAbstractBacterial persistence is a form of phenotypic heterogeneity in which a subpopulation, persisters, has high tolerance to antibiotics and other stresses. Persisters of enteric pathogens may represent the subpopulations capable of surviving in harsh environments and causing human infections. Here we...
Sat, 06/15/2019 - 01:07
Available online 13 June 2019 Author(s): Yong Ma, Sujuan Ding, Yanquan Fei, Gang Liu, Hongmei Jang, Jun FangAbstractThe main foodborne pathogens are Norovirus, Enteric parasites, bacteria and fungi. Foodborne diseases can lead to high morbidity and mortality and result in huge economic losses. Some foodborne diseases are associated with antibiotic resistance, which is a significant problem...
Fri, 06/14/2019 - 03:00
Journal of Food Protection, Volume 82, Issue 7, Page 1104-1109, July 2019.
Fri, 06/14/2019 - 03:00
Journal of Food Protection, Volume 82, Issue 7, Page 1104-1109, July 2019.
Fri, 06/14/2019 - 01:12
Available online 13 June 2019 Author(s): Khashayar Shahin, Majid Bouzari, Ran Wang, Mahsa YazdiAbstractShigella spp. can be isolated from various food sources and is responsible for many outbreaks and sporadic cases of foodborne diseases worldwide. Although Shigella species are known as one of the major foodborne pathogens, a few studies have characterized the prevalence and molecular basis of...
Fri, 06/14/2019 - 01:12
Available online 13 June 2019 Author(s): Romina Zanabria, Manon Racicot, Alexandre Leroux, Liu Xucen, Mathieu Cormier, Cécile Ferrouillet, Julie Arsenault, Anna Mackay, Mansel Griffiths, Rick Holley, Tom Gill, Sylvain Charlebois, Jeffrey Farber, Aamir Fazil, Sylvain QuessyAbstractDecreasing the health burden caused by foodborne pathogens is challenging and it depends on the identification of the...
Fri, 06/14/2019 - 01:12
Available online 12 June 2019 Author(s): Putu Eka Sudaryatma, Hirohisa Mekata, Meiko Kubo, Mawar Subangkit, Yoshitaka Goto, Tamaki OkabayashiAbstractBovine respiratory disease complex is a major disease affecting the global cattle industry. Multiple infections by viruses and bacteria increase disease severity. Previously, we reported that bovine respiratory syncytial virus (BRSV) infection...
Thu, 06/13/2019 - 20:00
Shigella has evolved as a result of acquiring extragenetic material through horizontal gene exchange. These aid in the rapid emergence of bacterial inter-strain diversity in virulence factors and serotype variant...
Thu, 06/13/2019 - 10:28
Alginate‐based edible coating acts as a carrier enabling the sustained release of thyme oil to the surface of the fresh‐cut apples, inhibiting the growth of Listeria monocytogenes, Salmonella Typhimurium, Staphylococcus aureus and Escherichia coli O157:H7 inoculated onto fresh‐cut apples. Summary In this study, the inhibition of an alginate‐based edible coating (EC) containing thyme oil (0.05...
Thu, 06/13/2019 - 10:28
Alginate‐based edible coating acts as a carrier enabling the sustained release of thyme oil to the surface of the fresh‐cut apples, inhibiting the growth of Listeria monocytogenes, Salmonella Typhimurium, Staphylococcus aureus and Escherichia coli O157:H7 inoculated onto fresh‐cut apples. Summary In this study, the inhibition of an alginate‐based edible coating (EC) containing thyme oil (0.05...
Thu, 06/13/2019 - 01:17
Available online 12 June 2019 Author(s): Xuan Zhang, Yan Dong Niu, Yuchen Nan, Kim Stanford, Rick Holley, Tim McAllister, Claudia Narváez-BravoAbstractThe purpose of this study was to determine the effectiveness of a commercial Salmonella bacteriophage mixture (SalmoFresh™ 6-phage strains) and to compare its effectiveness with a chlorinated water treatment to reduce Salmonella on produce and...
Thu, 06/13/2019 - 01:17
Available online 11 June 2019 Author(s): Caterina Agrimonti, Jason C. White, Stefano Tonetti, Nelson MarmiroliAbstractCellulosic pads, amended with emulsions containing essential oils of thyme and oregano, exhibited antimicrobial activity against the psychrophilic microbiota of minced beef. In addition, the pads were active against specific meat bacterial species (Pseudomonas putida, Pseudomonas...
Thu, 06/13/2019 - 01:17
Publication date: Available online 11 June 2019Source: Author(s): Virginia M. Guitián, Carolina Ibarguren, Cecilia M. Soria, Paula Hovanyecz, Claudia Banchio, Carina M. AudisioAbstractBacteriocins synthesised by lactic acid bacteria are natural alternatives to control Listeria monocytogenes, a foodborne pathogen. Additionally, antimicrobial biopolymer coatings have significant benefits in food...

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