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Bacterial pathogens

Sun, 06/30/2019 - 01:12
Available online 29 June 2019 Author(s): Veronica Martinez-Rios, Marie Østergaard Jørgensen, Ioulia Koukou, Elissavet Gkogka, Paw DalgaardAbstractThe aim of this study was to develop and validate a growth and growth boundary model with terms for melting salts to predict growth of Listeria monocytogenes in spreadable processed cheese. Cardinal parameter terms for phosphate salts and citric acid...
Sat, 06/29/2019 - 01:14
Publication date: Available online 28 June 2019 Innovative Food Science & Emerging TechnologiesAuthor(s): María del Rosario García-Mateos, Beatriz Quiroz-González, Joel Corrales-García, Ma. Carmen Ybarra-Moncada, Gabriel Leyva-RuelasAbstractThe synergistic effect of ozone (24 mg/O3/L/min) and high hydrostatic pressure (HHP, 179–321 MPa) combination was evaluated with regard to individual...
Fri, 06/28/2019 - 17:00
Xue Xia, Yue Liu, Andrea Hodgson, Dongqing Xu, Wenxuan Guo, Hongbing Yu, Weifeng She, Chenxing Zhou, Lei Lan, Kai Fu, Bruce A. Vallance, Fengyi Wan Attaching/Effacing (A/E) bacteria include human pathogens enteropathogenic Escherichia coli (EPEC), enterohemorrhagic E. coli (EHEC), and their murine equivalent Citrobacter rodentium (CR), of which EPEC and EHEC are important causative agents of...
Fri, 06/28/2019 - 17:00
Noémie Alon Cudkowicz, Shimon Schuldiner Multidrug Transporters (MDTs) are major contributors to the acquisition and maintenance of Antimicrobial Resistance (AMR), a growing public health threat of broad concern. Despite the large number of MDTs, the overwhelming majority of the studies performed thus far in Gram-negative bacteria emphasize the supremacy of the AcrAB-TolC complex. To unveil the...
Fri, 06/28/2019 - 12:48
Summary Advances in whole‐genome sequencing (WGS) technologies have document genetic diversity and epidemiology of the major foodborne pathogen Listeria monocytogenes (Lm) in Europe and North America, but data concerning South America is scarce. Here we examined the population structure and genetic diversity of the major foodborne pathogen (Lm) collected in Brazil. Based on core genome multilocus...
Fri, 06/28/2019 - 12:48
Summary Advances in whole‐genome sequencing (WGS) technologies have document genetic diversity and epidemiology of the major foodborne pathogen Listeria monocytogenes (Lm) in Europe and North America, but data concerning South America is scarce. Here we examined the population structure and genetic diversity of the major foodborne pathogen (Lm) collected in Brazil. Based on core genome multilocus...
Fri, 06/28/2019 - 01:12
Publication date: Available online 26 June 2019Source: LWTAuthor(s): David Tomat, Marina Soazo, Roxana Verdini, Cecilia Casabonne, Virginia Aquili, Claudia Balagué, Andrea QuiberoniAbstractActive packaging materials with antimicrobial properties have gained significant interest over the last decade. Furthermore, phages are potentially useful as antimicrobial agents in food. Phage stability assays...
Fri, 06/28/2019 - 01:07
Publication date: 15 November 2019 , Volume 298Author(s): Samia A. Kosa, Zoya ZaheerAbstractNatural red purple dye, Betanin, was extracted from the beetroot, purified by aqueous two- phase extraction and gel permeation column chromatography, and used as a reducing agent for the synthesis of silver-betanin core-shell triangular nanodisks for the first time. Spectroscopic data show that the...
Fri, 06/28/2019 - 01:07
Publication date: Available online 26 June 2019 Innovative Food Science & Emerging TechnologiesAuthor(s): Erick F. de Oliveira, Cuong N. Huu, Kayla Stepanian, Andrea Cossu, Nitin NitinAbstractThis study demonstrated an innovative processing approach based on synergistic antimicrobial activity of two phenolic acids with mild thermal and non-thermal processing technologies. The two selected...
Fri, 06/28/2019 - 01:07
Available online 27 June 2019 Author(s): Miaoyun Li, Lihan Huang, Yaodi Zhu, Qingying WeiAbstractRoasted chicken (RC) and braised beef (BB) are two important commercial products widely consumed in China. Prepared with a mixture of different spices and other ingredients, these products may be contaminated with Clostridium perfringens spores. The spores may germinate, outgrow, and multiply to a...
Thu, 06/27/2019 - 13:08
Abstract Leptospirosis is a zoonotic bacterial disease reported worldwide. In Uganda, seropositivity has been reported in both humans and domesticated animals, including cattle. However, it remains unknown whether cattle are shedding leptospires and thus acting as potential source for human leptospirosis. We conducted this cross‐sectional study in two cattle abattoirs in Kampala, Uganda between...
Thu, 06/27/2019 - 05:08
Abstract This study was focused on determining survival and growth characteristics of Listeria monocytogenes and Staphylococcus aureus on conventional (16.7 mg of sodium/g) and low‐sodium (10.7 mg of sodium/g) bacon. The two types of bacon were inoculated with the either L. monocytogenes or S. aureus stored at 4, 12, or 25°C for up to 7 days. Populations of L. monocytogenes and S. aureus did not...
Thu, 06/27/2019 - 05:08
Abstract This study was focused on determining survival and growth characteristics of Listeria monocytogenes and Staphylococcus aureus on conventional (16.7 mg of sodium/g) and low‐sodium (10.7 mg of sodium/g) bacon. The two types of bacon were inoculated with the either L. monocytogenes or S. aureus stored at 4, 12, or 25°C for up to 7 days. Populations of L. monocytogenes and S. aureus did not...
Thu, 06/27/2019 - 01:07
Publication date: Available online 26 June 2019 Innovative Food Science & Emerging TechnologiesAuthor(s): Hee-Jeong Hwang, Ji-Hyun Seo, Chanmin Jeong, Chan-Ick Cheigh, Myong-Soo ChungAbstractThe objective of this study was to measure the inactivation efficiencies of intense pulsed light (IPL) on six types of bacteria and determine how the efficiency values are related to the spectral...
Thu, 06/27/2019 - 01:07
Available online 26 June 2019 Author(s): Xiaojie Qin, Rui Dong, Shoukui He, Xiujuan Zhou, Zengfeng Zhang, Yan Cui, Chunlei Shi, Yanhong Liu, Xianming ShiAbstractThe ybgC gene (encoding for acyl-CoA thioesterase) was shown to play a crucial role in the survival of Salmonella Enteritidis (S. Enteritidis) in egg white in our previous study. In this study, the resistance mechanisms of S. Enteritidis...
Thu, 06/27/2019 - 01:07
Available online 25 June 2019 Author(s): Zijin Zhou, Sophie Zuber, Matteo Campagnoli, Thierry Putallaz, Frank Devlieghere, Mieke UyttendaeleAbstractThe microbial safety of black peppercorns (Piper nigrum L.) has raised concerns due to increasing numbers of reported foodborne outbreaks and food safety alerts. To avoid quality degradation caused by excessive thermal processing, mild steaming...
Thu, 06/27/2019 - 01:07
Publication date: Available online 26 June 2019Source: LWTAuthor(s): Ilkin Yucel Sengun, Ezgi Goztepe, Berna OzturkAbstractIn this study, the effects of marination liquids (ML) prepared with koruk juice on safety and quality of poultry meat were investigated. Meat samples inoculated with Salmonella Typhimurium (≅ 6 log CFU/g) were marinated with different concentrations of koruk juice at 4 °C for...
Thu, 06/27/2019 - 01:07
Publication date: Available online 25 June 2019Source: LWTAuthor(s): C. Ripolles-Avila, A.S. Hascoët, A.G. Ríos-Castillo, J.J. Rodríguez-JerezAbstractIn the present study, wooden (pine and poplar) and plastic (high-density polyethylene -HDPE- and expanded polystyrene -EPS-) materials were evaluated to assess hygienic properties. Three types of studies were carried out: evaluation of the natural...
Thu, 06/27/2019 - 01:07
Publication date: Available online 25 June 2019Source: LWTAuthor(s): Jingjing Ma, Huhu Wang, Lanlin Yu, Wenjing Yuan, Wenjing Fu, Feng Gao, Yun JiangAbstractThis study was aimed to investigate the dynamic recovery process of high pressure processing (HPP)-injured Escherichia coli O157:H7. E. coli O157:H7 was treated with 100–500 MPa for 5 min, and the pressure with highest injury rate was...
Thu, 06/27/2019 - 01:07
Available online 25 June 2019 Author(s): Cristiana Garofalo, Vesna Milanović, Federica Cardinali, Lucia Aquilanti, Francesca Clementi, Andrea OsimaniAbstractBecause of their positive nutritional characteristics and low environmental impact, edible insects are a ‘food of the future’. However, there are safety concerns associated with the consumption of insects, such as contaminating chemical and...
Thu, 06/27/2019 - 01:07
Available online 25 June 2019 Author(s): Hongchao Zhang, Heather Leigh Dolan, Qiao Ding, Siyuan Wang, Rohan V. TikekarAbstractWe investigated the antimicrobial efficacy of octanoic acid (OA) against Escherichia coli O157:H7 inoculated on the surface of baby spinach and grape tomatoes during simulated washing processes.3 mM OA at 45 °C achieved >6 log CFU/g reduction from the surface of...
Thu, 06/27/2019 - 01:07
Available online 24 June 2019 Author(s): Zhi Ma, Rujing Zhang, Dan Hai, Zhaoxin Lu, Fengxia Lv, Haizhen Zhao, Chong Zhang, Tim A. McAllister, Kim Stanford, Xiaomei BieAbstractS. enterica is an important foodborne pathogen worldwide. As some strains can form biofilms which may offer protection against antimicrobials, it is of interest to explore ways to prevent biofilm formation by S. enterica. In...
Thu, 06/27/2019 - 01:07
Available online 22 June 2019 Author(s): Sarengaowa, Wenzhong Hu, Ke Feng, Zhilong Xiu, Aili Jiang, Ying LaoAbstractIn this study, the antimicrobial mechanism of thyme essential oil (EO) against Listeria monocytogenes was investigated at the protein level using tandem mass tag-based quantitative proteomic analysis. The proteomic profiles of LM with 2 log CFU/ml reduction after thyme EO treatment...
Thu, 06/27/2019 - 00:00
Staphylococcus aureus is an important pathogen causing chronic and subclinical mastitis of cows. Autophagy is an important regulatory mechanism that participates in the elimination of invading pathogenic organisms. Here, we hypothesize that autophagy is involved in the process of Staph. aureus survival in bovine mammary epithelial cells (BMEC). In this study, we detected the expression of...
Thu, 06/27/2019 - 00:00
We investigated antibiotic resistance of staphylococci isolated from 1128 samples of high-circulating RTE foods in Taiwan. A total of 111 Staphylococcus aureus and 709 coagulase-negative staphylococci (CoNS) comprising 23 species were isolated. The prevalence of S. aureus differed in various category of RTE foods, highest in fresh-cut fruits/vegetables (20.5%) and lowest in low-water activity (...
Wed, 06/26/2019 - 01:12
Available online 24 June 2019 Author(s): Elis Regina Gomes Alfama, Claudia Titze Hessel, Susana de Oliveira Elias, Cris Rocha Pinto Magalhães, Mariângela Flores Terra Santiago, Margarida Anschau, Eduardo Cesar TondoAbstractFood distribution temperature is one of the most important factors to be controlled in order to prevent foodborne illnesses in food services. In this study, 339,548 records of...
Tue, 06/25/2019 - 20:00
Not all Salmonella enterica serovars cause the same disease. S. enterica represents an incredibly diverse species comprising >2,600 unique serovars. While some S. enterica serovars are host-restricted, others infect a wide range of hosts. The diseases that nontyphoidal Salmonella (NTS) serovars cause vary considerably, with some serovars being significantly more likely to cause invasive...
Tue, 06/25/2019 - 15:58
Abstract In this study, an active antibacterial packaging film was developed by coating a polyethylene terephthalate/polyvinylidene chloride/retort casting polypropylene (PPR) plastic multilayer film with plantaricin BM‐1 and chitosan. The characteristics of the active packaging film and its antibacterial effect for chilled meat preservation were evaluated. Our results indicated that the barrier...
Tue, 06/25/2019 - 08:35
Abstract Salmonella‐contaminated raw food is an important source of human food poisoning. Traditional methods for detecting Salmonella in meat involve many time‐consuming and laborious steps, preventing timely and effective control of the pathogen. In this study, a multiplex polymerase chain reaction (PCR) assay that targets serovar‐specific genes such as A7P63_0910 (Salmonella Indiana), sdfI (...
Tue, 06/25/2019 - 08:35
Abstract Salmonella‐contaminated raw food is an important source of human food poisoning. Traditional methods for detecting Salmonella in meat involve many time‐consuming and laborious steps, preventing timely and effective control of the pathogen. In this study, a multiplex polymerase chain reaction (PCR) assay that targets serovar‐specific genes such as A7P63_0910 (Salmonella Indiana), sdfI (...
Mon, 06/24/2019 - 11:16
Enteroaggregative Escherichia coli (EAEC) from the O104:H4 specific serotype caused a large outbreak of bloody diarrhea with some complicated cases of hemolytic uremic syndrome (HUS) in Europe in 2011. The outbreak strain consisted in an EAEC capable to produce the Shiga toxin (Stx) subtype 2a, a characteristic from enterohemorrhagic E. coli (EHEC). QseBC 2-component system detects AI-3/Epi/NE...
Mon, 06/24/2019 - 07:45
Abstract Rolling circle amplification (RCA) has been widely used to enhance detection signals as its long single‐stranded RCA products can provide multiple binding sites for signal probes for sensitive detections. In the current study, we employ atomic force microscopy (AFM) to monitor the RCA products during the course of the RCA process over time. Subsequently, the results of the RCA obtained...
Mon, 06/24/2019 - 07:45
Abstract Rolling circle amplification (RCA) has been widely used to enhance detection signals as its long single‐stranded RCA products can provide multiple binding sites for signal probes for sensitive detections. In the current study, we employ atomic force microscopy (AFM) to monitor the RCA products during the course of the RCA process over time. Subsequently, the results of the RCA obtained...
Mon, 06/24/2019 - 03:00
Journal of Food Protection, Volume 82, Issue 7, Page 1183-1190, July 2019.
Mon, 06/24/2019 - 03:00
Journal of Food Protection, Volume 82, Issue 7, Page 1183-1190, July 2019.
Mon, 06/24/2019 - 03:00
Journal of Food Protection, Volume 82, Issue 7, Page 1183-1190, July 2019.
Sun, 06/23/2019 - 11:53
The morphological structure of potato starch‐based biodegradable (PSBB) films with virgin coconut oil (VCO). Increasing VCO concentrations caused a rise in the light transmittance of the films from 2.13 to 4.79 mm−1 and a decrease in water vapour transmittance from 6.77 to 2.12 (10−5 GPa−1 h−1 m−1). Scanning electron microscopy showed that the surface of the film became smoother as VCO...
Sun, 06/23/2019 - 01:07
Available online 21 June 2019 Author(s): Emalie Thomas-Popo, Aubrey Mendonca, James Dickson, Angela Shaw, Shannon Coleman, Aura Daraba, Armitra Jackson-Davis, Floyd WoodsAbstractThe antimicrobial effectiveness of isoeugenol against Escherichia coli O157:H7, Salmonella enterica, and Listeria monocytogenes in refrigerated (4 °C) pineapple juice (PJ) with added 0.5% (w/v) yucca extract (YEX) was...
Sun, 06/23/2019 - 01:07
Available online 22 June 2019 Author(s): Panagiotis Papadopoulos, Apostolos S. Angelidis, Theofilos Papadopoulos, Charalampos Kotzamanidis, Antonios Zdragas, Anna Papa, George Filioussis, Daniel SergelidisAbstractRecently, there has been an increased tendency towards raw-milk consumption, which may pose a consumer risk, due to the possible presence of human pathogenic microorganisms, such as...
Sun, 06/23/2019 - 01:07
Available online 21 June 2019 Author(s): Emmanuel Dixon, Isabel Rabanser, Monika Dzieciol, Benjamin Zwirzitz, Martin Wagner, Evelyne Mann, Beatrix Stessl, Stefanie Urimare WetzelsAbstractIn order to assess the reduction potential of steam vacuum treatment (SVT) and high-pressure water treatment (HPWT) to reduce microbial contamination during beef processing, ten randomly selected carcass halves...
Fri, 06/21/2019 - 03:00
Journal of Food Protection, Volume 82, Issue 7, Page 1141-1147, July 2019.

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