Research Publications from Peer-Reviewed Journals

Sat, 10/05/2019 - 03:24
Author(s): Ina Geburek, Angelika Preiss-Weigert, Monika Lahrssen-Wiederholt, Dieter Schrenk, Anja TheseAbstractPyrrolizidine alkaloid (PA) forming plants are found worldwide and may contaminate food products at levels being of concern for human health. Due to the high biodiversity of PA producing plants many different types of PA structures are formed. PAs themselves are not toxic but require...
Sat, 10/05/2019 - 03:24
Author(s): Hossein Haghighi, Serge Kameni Leugoue, Frank Pfeifer, Heinz Wilhelm Siesler, Fabio Licciardello, Patrizia Fava, Andrea PulvirentiAbstractThe main aim of this study was to characterize microstructural, physical, optical, mechanical, water barrier and antimicrobial properties of chitosan-polyvinyl alcohol blend films (CS-PVA) enriched with ethyl lauroyl arginate (LAE) (1–10% w/v) for...
Sat, 10/05/2019 - 03:21
This study investigated the combined effects of different doses of UV‐C light at 260 nm (0–1,800 mWs/cm2) and ethanol (0–70%) on the reduction of Escherichia coli and Bacillus cereus in experimentally contaminated Gwamegi (semidried Pacific saury). After combined treatment of 4,800 mWs/cm2 of UV‐C and 70% ethanol, E. coli and B. cereus were reduced by 3.03 and 2.73 log CFU/g, respectively....
Sat, 10/05/2019 - 03:20
Pretreatment with beetroot‐based beverages for 8 weeks showed significantly higher levels of superoxide dismutase (25%–28%), catalase (21%–24%), and hepatic enzymes (15%–19%) alongside reduced lipid peroxidation (27%–32%) in liver tissues of hepatotoxicity‐induced rats. Hepatic injury was reduced by 19%–26% as indicated by concentrations of serum hepatic health biomarkers in hepatotoxicity‐...
Sat, 10/05/2019 - 03:20
Several toxic secondary metabolites of filamentous fungi, so‐called mycotoxins, have the potential to modify immune responses. The results show that the food contaminant alternariol (AOH) alters the interleukin(IL)‐1β induced inflammatory response in non‐immune cells of the intestinal epithelium, most probably by targeting the NF‐κB (nuclear factor κB) pathway. Scope Alternariol (AOH), a toxic...
Sat, 10/05/2019 - 03:18
The use of pedunculate oak (Quercus robur L.), along with other tree species, for the afforestation of heavy metal contaminated lands is an attractive prospect. Little, however, is known of Q. robur tolerance and its antioxidative system response to heavy metal exposure. The main objective of the study was to determine the cadmium-induced changes in antioxidative system of pedunculate oak in an...
Sat, 10/05/2019 - 03:18
In this study, ambient PM2.5 samples were collected from October 2014 to August 2015 in urban area of Luoyang (LY) and Pingdingshan (PDS), two medium-size industrial cities in central China. Sixteen priority polycyclic aromatic hydrocarbons (PAHs) were analyzed to investigate the seasonal variation, potential pollution sources, and health risk of PAHs bound to PM2.5 (PM2.5-bound PAHs). The...
Sat, 10/05/2019 - 03:16
Land use change alters the accumulation of heavy metals (HMs) in soils and might have significant influence on the assembly and functions of soil microbial community. Although numerous studies have discussed the impacts of either total amounts or availability of metals on soil microbes in land change, there is still limited understanding on which one is more critical. In the present study, soils...
Sat, 10/05/2019 - 03:16
Salmonella is a leading cause of foodborne disease and is often associated with the consumption of foods of animal origin. In this study, sixty-six Salmonella isolates were obtained from 631 raw meat samples purchased at small retail suppliers in Hubei Province, China. The most prevalent Salmonella serotypes were Thompson (18.2%) and Agona (13.6%). Frequent antimicrobial resistance was observed...
Sat, 10/05/2019 - 03:16
Aflatoxins produced by the Aspergillus species are highly toxic, carcinogenic, and cause severe contamination to food sources, leading to serious health consequences. Contaminations by aflatoxins have been reported in food and feed, such as groundnuts, millet, sesame seeds, maize, wheat, rice, fig, spices and cocoa due to fungal infection during pre- and post-harvest conditions. Besides these...
Sat, 10/05/2019 - 03:16
Treated wastewater from reclaimed facilities (WWTP) has become a reusable source for a variety of applications, such as agricultural irrigation. However, it is also a potential reservoir of clinically-relevant multidrug resistant (MDR) pathogens, including ESKAPE (Enterococcus faecium and Streptococcus surrogates, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas...
Sat, 10/05/2019 - 03:16
While antibiotic-resistant bacteria have been detected in extreme environments, including Antarctica, to date there are no reports of Acinetobacter species isolated from this region. Here, we characterized by whole-genome sequencing (WGS) the genetic content of a single antibiotic-resistant Acinetobacter spp. isolate (A154) collected in Antarctica. The isolate was recovered in 2013 from soil...
Sat, 10/05/2019 - 03:16
Forages are important components of dairy cattle rations but might harbor a plethora of mycotoxins. Ruminants are considered to be less susceptible to the adverse health effects of mycotoxins, mainly because the ruminal microflora degrades certain mycotoxins. Yet, impairment of the ruminal degradation capacity or high ruminal stability of toxins can entail that the intestinal epithelium is...
Fri, 10/04/2019 - 03:29
by Stephen F. Fitzgerald, Amy E. Beckett, Javier Palarea-Albaladejo, Sean McAteer, Sharif Shaaban, Jason Morgan, Nur Indah Ahmad, Rachel Young, Neil A. Mabbott, Liam Morrison, James L. Bono, David L. Gally, Tom N. McNeilly Specific Escherichia coli isolates lysogenised with prophages that express Shiga toxin (Stx) can be a threat to human health, with cattle being an important natural reservoir....
Fri, 10/04/2019 - 03:29
We present the complete genome sequence of an enterohemorrhagic Escherichia coli O111:H8 strain. This strain was isolated from a hemolytic-uremic syndrome patient and was responsible for a large outbreak associated with the consumption of raw beef in 2011.
Fri, 10/04/2019 - 03:29
We present the complete genome sequence of fluoranthene-consuming Cycloclasticus sp. strain PY97N. This strain has one circular chromosome with a G+C content of 42.06%. Moreover, two genomic islands were identified as putative conjugative elements. These genomic details are expected to inform our understanding of the remarkable catabolic capacities of organisms of the Cycloclasticus lineage.
Fri, 10/04/2019 - 03:29
The genome of a multidrug-resistant (MDR) Salmonella enterica subsp. enterica serovar I 4,[5],12:i:– isolate from the 2015 U.S. pork outbreak was sequenced. The complete nucleotide sequence of USDA15WA-1 is 5,031,277 bp, including Salmonella genomic island 4 encoding tolerance to multiple metals and an MDR module inserted in the fljB region.
Fri, 10/04/2019 - 03:27
Author(s): Cristina García-Florentino, Maite Maguregui, Chiara Ciantelli, Alessandro Sardella, Alessandra Bonazza, Ignasi Queralt, Jose Antonio Carrero, Claudio Natali, Héctor Morillas, Juan Manuel Madariaga, Gorka AranaAbstractConstruction materials affected by black crusts (BCs) can be subjected to restoration, demolition, recycling or even to their management as waste products. Therefore, the...
Fri, 10/04/2019 - 03:26
Author(s): Chieh-Hsiu Lee, Kai-Ting Chen, Jer-An Lin, Yu-Ting Chen, Yi-An Chen, Jung-Tsung Wu, Chang-Wei HsiehABSTRACTBackground5-Hydroxymethylfurfural (5-HMF) is a neo-formed contaminant arising in foods during thermal processing, especially under acidic conditions. Exposure to 5-HMF is inevitable for human beings since it is widespread in foods, including honey, bread, beer, coffee, fruit...
Fri, 10/04/2019 - 03:25
Author(s): Alessandra Snak, Gilberto Serighelli Junior, Giulia Von Tonnemann Pilati, Carlos Czpak Kroetz, Wagner Consoni, José Cristani, Anderson Barbosa de MouraAbstractNeospora caninum is known to cause reproductive disturbances in several animal species, such as cattle, sheep, and goats. However, research on the effects of N. caninum on reproduction in pigs is limited. The objective of this...
Fri, 10/04/2019 - 03:25
Author(s): Wenhao Li, Kaikai Mao, Chaoya Liu, Peipan Gong, Pengfei Xu, Gang Wu, Wei Le, Hu Wan, Hong You, Jianhong LiAbstractSogatella furcifera (Horváth) is a major threat to rice production in China. Insecticides are a key component of typical pest management schemes, but few studies have quantitatively identified insecticide control failures due to insecticide resistance. Therefore, we...
Fri, 10/04/2019 - 03:24
LWT
Author(s): Darla Silveira Volcan Maia, Louise Haubert, Isabela Schneid Kroning, Kauana dos Santos Soares, Thaís Larré Oliveira, Wladimir Padilha da SilvaAbstractThe aims of this study were to verify the ability of S. aureus isolates from food poisoning outbreaks to form biofilm, and evaluate the susceptibility of these isolates to Butia odorata extract (BOE) and its effect on S. aureus biofilm....
Fri, 10/04/2019 - 03:24
LWT
Author(s): Veronica Rodriguez-Martinez, Gonzalo Velázquez, Rosario de Jesús Rodríguez Altaif, Fabian Fagotti, Jorge Welti-Chanes, J. Antonio TorresAbstractFollowing deterministic and probabilistic predictive microbiology procedures, cumulative 48 h exponential growth estimates were obtained for Listeria monocytogenes (Lm) and Pseudomonas putida (Pp) as preservation effectiveness indicators for...
Fri, 10/04/2019 - 03:21
Inhibitory activity of caraway and juniper essential oils was tested against two aflatoxigenic strains (Aspergillus flavus—four isolates and Aspergillus parasiticus—one isolate) using the method of agar plates. A. flavus IKBT and A. flavus IKB isolated from corn flour, A. flavus IKT isolated from peanuts, and A. flavus IKK isolated from flint corn. A. parasiticus CBS 260.67 was obtained from the...
Fri, 10/04/2019 - 03:21
The study investigated the effects of chitosan (CS) combined with essential oils (EOs) in controlling the fungal contamination in peanut kernels. The antifungal activities of CS and EOs were evaluated against Aspergillus flavus and Penicillium citrinum. CS (2%, w/v in 1% v/v acetic acid) packaging films were formulated by incorporating different EOs (4%) separately, that is, thyme (TEOs),...
Fri, 10/04/2019 - 03:21
Starch is a very common carbohydrate. Along with its use in the pharmaceutical, textile, and paper industries, starch is widely used in the food industry as well, but native starch has limited use due to its certain properties such as retrogradation, problems related to gelatinization, instability at high temperatures, and acidic conditions. Various modification procedures are used to improve the...
Fri, 10/04/2019 - 03:20
ABSTRACT In this study, quick, easy, cheap, effective, rugged and safe combined with dispersive liquid‐liquid microextraction is developed for extraction of ten pesticides in complex sample matrices of water and milk. In this regard, effective factors of proposed extraction technique combined with gas chromatography‐flame ionization detector were designed, modeled and optimized using central...
Fri, 10/04/2019 - 03:20
Listeria monocytogenes, in fresh and ready‐to‐eat produce such as whole fresh apples, is of concern as there is no “kill step” in their packing process that would eliminate the pathogenic bacteria. Recent listeriosis outbreaks revealed that insufficient cleaning and sanitation practices in fresh apple packing houses may lead to contamination of fruit with L. monocytogenes. This article discusses...
Fri, 10/04/2019 - 03:20
Stone surfaces are extreme environments that support microbial life. This microbial growth occurs despite unfavourable conditions associated with stone including limited sources of nutrients and water, high pH and exposure to extreme variations in temperature, humidity and irradiation. These stone‐dwelling microbes are often resistant to extreme environments including exposure to desiccation,...
Fri, 10/04/2019 - 03:20
Successful application of microorganisms to heavy metal remediation depends on their resistance to toxic metals. This study contrasted the differences of tolerant mechanisms between Pb2+ and Cd2+ in Enterobacter sp. Microbial respiration and production of formic acid showed that Enterobacter sp. had a higher tolerant concentration of Pb (>1000 mg l−1) than Cd (about 200 mg l−1). Additionally,...
Fri, 10/04/2019 - 03:20
Iron is essential for most living organisms. In addition, its biogeochemical cycling influences important processes in the geosphere (e.g., the mobilization or immobilization of trace elements and contaminants). The reduction of Fe(III) to Fe(II) can be catalysed microbially, particularly by metal‐respiring bacteria utilizing Fe(III) as a terminal electron acceptor. Furthermore, Gram‐positive...
Fri, 10/04/2019 - 03:17
ABSTRACT Non-pigmented rapidly growing mycobacteria (NPRGM) are widely distributed in water, soil and animals. It has been observed an increasing importance of NPRGM related-infections, particularly due to the high antimicrobial resistance. NPRGM have rough and smooth colony phenotypes, and several studies have showed that rough colony variants are more virulent than smooth ones. However, other...
Fri, 10/04/2019 - 03:16
The aim of this study was to determinate whether coagulase-negative staphylococci (CNS) from buffalo milk or the milking environment possess virulence factors that are associated with intramammary infections or antimicrobial resistance. Milk samples (n = 320) from 80 lactating buffalo were evaluated for clinical and subclinical mastitis by physical examination, the strip cup test, California...
Thu, 10/03/2019 - 03:30
by Lucy L. Furfaro, Barbara J. Chang, Charlene M. Kahler, Matthew S. Payne As a leading cause of neonatal sepsis, Streptococcus agalactiae, commonly known as Group B Streptococcus, is a major neonatal pathogen. Current global screening practices employ risk- or culture-based protocols for detection of these organisms. In Western Australia (WA), universal culture-based screening is provided, with...
Thu, 10/03/2019 - 03:30
by João L. Reis-Cunha, Daniella C. Bartholomeu, Abigail L. Manson, Ashlee M. Earl, Gustavo C. Cerqueira Background Prophages play a significant role in prokaryotic evolution, often altering the function of the cell that they infect via transfer of new genes e.g., virulence or antibiotic resistance factors, inactivation of existing genes or by modifying gene expression. Recently, phage therapy has...
Thu, 10/03/2019 - 03:29
Fecal microorganisms can enter water bodies in diverse ways, including runoff, sewage discharge, and direct fecal deposition. Once in water, the microorganisms experience conditions that are very different from intestinal habitats. The transition from host to aquatic environment may lead to rapid inactivation, some degree of persistence, or growth. Microorganisms may remain planktonic, be...
Thu, 10/03/2019 - 03:28
Author(s): Pan Wu, Yuqiao Hu, Yanling Wang, Yuan Wu, Ning Li, Yuying Dong, Ying ZhangAbstractThe employment of traditional bait and medicament in freshwater aquaculture causes the frequent occurrence of environmental pollution and disease. Effluent collected after Rhodopseudomonas capsulatus-mediated wastewater treatment could be re-utilized as microbial feeds, medicament, and aquaculture water...
Thu, 10/03/2019 - 03:28
Author(s): Runze Huang, Haiqiang ChenAbstractFresh produce has been identified as the transmission vehicle for many foodborne illness outbreaks every year. They could be contaminated by pathogens at any point within the farm-to-fork food chain. Washing is often used to remove dirt and pathogens on fresh produce. Moreover, an effective decontamination method is required for wash water to prevent...
Thu, 10/03/2019 - 03:28
Author(s): Sunjung M. Chung, Rosalee S. HellbergAbstractThe presence of <1% of an undeclared species in ground meat is generally thought to be indicative of cross-contamination as opposed to intentional mislabeling; however, this has not been experimentally tested. The objective of this study was to quantify the effects of poor sanitation on the cross-contamination of animal species in ground...
Thu, 10/03/2019 - 03:26
Author(s): Hema Bhardwaj, Gajjala Sumana, Christophe A. MarquetteAbstractThe Surface Plasmon resonance (SPR) based label-free detection of small targeted molecules is a great challenge and require substantial signal amplification for the accurate and precise quantification. The incorporation of noble metal nanoparticles (NPs) like gold (Au) NPs for the fabrication of SPR biosensor has shown...
Thu, 10/03/2019 - 03:26
Author(s): Chuan-Guo Ma, Ying-Dan Wang, Wei-Feng Huang, Jun Liu, Xiao-Wei ChenAbstractZearalenone (ZEN) is one of the most widely distributed harmful mycotoxins produced by Fusarium species, especially deposited in corn oil. In this study, we systematically tracked the changes of ZEN in the refining of corn oil, and especially during neutralization process. An alkali neutralization process could...
Thu, 10/03/2019 - 03:26
Author(s): Wei Wang, Zhilong Yu, Fouad K. Alsammarraie, Fanbin Kong, Mengshi Lin, Azlin MustaphaAbstractAn environmentally friendly antimicrobial film was developed by incorporating silver nanoparticles (AgNPs) into bacterial nanocellulose (BNC) via reduction (R) and UV-assisted (UV) methods. By mixing with 3 wt% polyvinyl alcohol (PVA) solution, the elongation at break of the films was improved...
Thu, 10/03/2019 - 03:25
Author(s): Xiaoxia Dong, Fan Yang, Shuping Yang, Changzhou YanAbstractCanna indica L. is a promising species for heavy metal phytoremediation due to its fast growth rate and large biomass. However, few studies have investigated cadmium (Cd) tolerance mechanisms. In the present study, Canna plants were cultivated under hydroponic conditions with increasing Cd concentrations (0, 5, 10, 15 mg/L). We...
Thu, 10/03/2019 - 03:25
Author(s): Yang Liu, Jun Ji, Wei Zhang, Yao Suo, Jiating Zhao, Xiaoying Lin, Liwei Cui, Bai Li, Huaiqiang Hu, Chunying Chen, Yu-Feng LiAbstractIntroductionSelenium plays important roles in antagonizing the toxicity of methylmercury. The underlying mechanism for the antagonism between Se and MeHg is still not fully understood.ObjectiveThe role of gut flora against the toxicity of environmental...

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