Research Publications from Peer-Reviewed Journals

Thu, 10/03/2019 - 03:24
LWT
Author(s): Chevise L. Thomas, Harshavardhan Thippareddi, Macc Rigdon, Sanjay Kumar, Robert W. McKee, William M. Sims, Alexander M. StelzleniAbstractThe US meat industry actively seeks antimicrobials to eliminate Shiga toxin-producing Escherichia coli (STEC) in non-intact products. To facilitate this, the anterior end (10.2 cm) of beef striploins (30.5 cm) were inoculated (lean side) with a ca. 8....
Thu, 10/03/2019 - 03:24
LWT
Author(s): Álvaro T. Lemos, Ana C. Ribeiro, Ivonne Delgadillo, Jorge A. SaraivaAbstractRaw watermelon juice previously studied for 21 days by hyperbaric storage (HS) at 75 MPa and uncontrolled/naturally variable room temperature (RT ≈ 25 °C), was kept further under 75 MPa/≈25 °C for one year. The results revealed that compared to the results previously reported (21 days), HS up to one year caused...
Thu, 10/03/2019 - 03:21
Salmonella enterica serovar Typhimurium (S. Tm) is a major intracellular pathogen that infects humans and animals, and its survival and growth in macrophages is essential for its pathogenicity. More than 50 putative regulatory proteins are encoded by the S. Tm genome, but the functions of these regulatory proteins in mediating S. Tm pathogenicity are largely unknown. In this study, we...
Thu, 10/03/2019 - 03:20
Doctor fish (Garra rufa, Heckel, 1843) are increasingly used for cosmetic treatment raising particular concerns regarding the potential transmission of infections to clients. Investigations of microbial causes undertaken in two outbreaks of mortality among G. rufa used for cosmetic treatment revealed the presence of multiple bacteria, including both fish and human pathogens such as Aeromonas...
Thu, 10/03/2019 - 03:19
BACKGROUND Several diseases and insects may cause potential damage to the normal growth of cucumber. Azoxystrobin and meptyldinocap are effective against pathogens which have developed reduced sensitivity to other fungicides because of their novel mode of action. Azoxystrobin is persistent in various crops and environment. However, there is a lack of research on dissipation of these two...
Thu, 10/03/2019 - 03:17
Dairy manure, a by-product in the dairy industry, is also a potential source of nutrients for crops. However, improper application of biological soil amendments of animal origin can be a source of contamination with enteric foodborne pathogens. A 2-year field study was conducted to evaluate impacts of dairy manure fertilizer application on the microbial safety of red raspberry (Rubus idaeus L)...
Thu, 10/03/2019 - 03:17
The manifestation of aflatoxins in feed and food is a major issue in the world as its presence leads to some health problems. This study investigates the incidence of aflatoxin M1 (AFM1) contamination in raw milk samples which were collected from Punjab, Pakistan. The Cluster Random Sampling technique was used to collect 960 milk samples from five different regions, and samples were collected...
Wed, 10/02/2019 - 03:30
by Giselle de Faria Romero Soldi, Isadora Coutinho Ribeiro, Cintia Mayumi Ahagon, Luana Portes Ozório Coelho, Gabriela Bastos Cabral, Giselle Ibette Silva López Lopes, João Leandro de Paula Ferreira, Luís Fernando de Macedo Brígido, on behalf of the Salvage Therapy Working Group Background Protease inhibitors (PI) are especially important in salvage therapy. Previous treatment failure with a PI...
Wed, 10/02/2019 - 03:30
by Iftekhar Bin Naser, M. Mozammel Hoque, Shah Nayeem Faruque, M. Kamruzzaman, Shinji Yamasaki, Shah M. Faruque Background Toxigenic Vibrio cholerae resides in aquatic reservoirs of cholera-endemic areas mostly in a dormant form known as conditionally viable environmental cells (CVEC) in which the bacteria remain embedded in an exopolysaccharide matrix, and fail to grow in routine bacteriological...
Wed, 10/02/2019 - 03:29
A viability quantitative PCR (qPCR) utilizing propidium monoazide (PMA) is presented for rapid quantification of viable cells using the foodborne pathogen Campylobacter coli as a bacterial model. It includes optimized spheroplast formation via lysozyme and EDTA, induction of a mild osmotic shock for enhancing the selective penetration of PMA into dead cells, and exploitation of an internal sample...
Wed, 10/02/2019 - 03:29
Iron sheet piles are widely used in flood protection, dike construction, and river bank reinforcement. Their corrosion leads to gradual deterioration and often makes replacement necessary. Natural deposit layers on these sheet piles can prevent degradation and significantly increase their life span. However, little is known about the mechanisms of natural protective layer formation. Here, we...
Wed, 10/02/2019 - 03:29
In Listeria monocytogenes, it has been proposed that the VirSR two-component signal transduction systems (TCSs) and two ATP-binding cassette (ABC) transporters, VirAB and AnrAB, constitute a complex TCS/ABC transporter system which has been recognized as a unique resistance mode. The role of the putative VirAB-VirSR-AnrAB system in antimicrobial resistance and the respective contributions of the...
Wed, 10/02/2019 - 03:29
Contamination of food during processing is recognized as a main transmission route of Listeria monocytogenes. To prevent microbial contamination, biocides are widely applied as disinfectants in food processing plants. However, there are concerns about the development of antimicrobial resistance in foodborne pathogens due to widespread biocide usage. In our study, 93 L. monocytogenes isolates from...
Wed, 10/02/2019 - 03:29
Certain foodborne Shiga toxin-producing Escherichia coli (STEC) strains carry genes encoding the subtilase cytotoxin (SubAB). Although the mode of action of SubAB is under intensive investigation, information about the regulation of subAB gene expression is currently not available. In this study, we investigated the regulation of the chromosomal subAB1 gene in laboratory E. coli strain DH5...
Wed, 10/02/2019 - 03:29
Toxoplasma gondii is a ubiquitous foodborne protozoan that can infect humans at low dose and displays different prevalences among countries in the world. Ingestion of food or water contaminated with small amounts of T. gondii oocysts may result in human infection. However, there are no regulations for monitoring oocysts in food, mainly because of a lack of standardized methods to detect them. The...
Wed, 10/02/2019 - 03:27
Author(s): Sefater Gbashi, Patrick Berka Njobeh, Sarah De Saeger, Marthe De Boevre, Ntakadzeni Edwin MadalaAbstractEffective management of mycotoxins rely on stringent regulation and routine surveillance of food/feed commodities via efficient analysis, hence the continuous need for improved methods. The present study developed, optimized and validated a modified pressurized hot water extraction (...
Wed, 10/02/2019 - 03:27
Author(s): W. Schlörmann, S. Zetzmann, B. Wiege, N.U. Haase, A. Greiling, S. Lorkowski, C. Dawczynski, M. GleiAbstractDue to their high content of β-glucan, the consumption of oat products can contribute to a healthy diet. Roasting may improve sensory properties but could also affect the nutritional value of oat products. Therefore, the aim of the present study was to analyse the impact of...
Wed, 10/02/2019 - 03:25
LWT
Author(s): Linlin Xu, Ping Chen, Tong Liu, Dayong Ren, Na Dong, Wenwen Cui, Pai He, Yunfeng Bi, Na Lv, Moeketsi NtakatsaneAbstractThe study developed a novel, sensitive and visual count card for detection of molds and yeasts in food. A series of concentrations of ethanol and four cations for molds and yeasts growth and coloration were evaluated. Furthermore, cold water gel texture of count card...
Wed, 10/02/2019 - 03:25
LWT
Author(s): Tianqi Cui, Fengling Bai, Mengtong Sun, Xinran Lv, Xuepeng Li, Defu Zhang, Hong DuAbstractQuorum quenching (QQ) activity of crude extract (CE) from Lactobacillus crustorum ZHG 2-1 against Pseudomonas aeruginosa was evaluated at three sub-minimum inhibitory concentrations (MIC) 1.0, 2.0 and 3.0 mg/mL. Agar diffusion method results showed that CE can degrade N-homoserine lactone (AHLs)...
Wed, 10/02/2019 - 03:23
In the last 10 years, many atypical novel members of Brucella species have been reported, including several Brucella inopinata‐like strains in wild‐caught and “exotic” amphibians from various continents. In 2017, a strain of Brucella was isolated for the first time in animals from a French farm producing frogs – Pelophylax ridibundus – for human consumption, and identified as B. microti‐like....
Wed, 10/02/2019 - 03:23
Controlling the free chlorine (FC) availability in wash water during sanitization of fresh produce enhances our ability to reduce microbial levels and prevent cross‐contamination. However, maintaining an ideal concentration of FC that could prevent the risk of contamination within the wash system is still a technical challenge in the industry, indicating the need to better understand wash water...
Wed, 10/02/2019 - 03:22
The present study investigated the effect of three selected phenolics, gallic acid (GA), tannic acid (TA), and quercetin (Q), on heated egg white proteins. Results revealed that mixing phenolics with egg white before heat treatment at different temperatures (56°C–89°C) for 3, 10, and 20 min, leads to a limitation on the formation of aggregates and a weak loss of solubility as compared to egg...
Wed, 10/02/2019 - 03:22
In Turkey, legislation reduced the salt content in fresh cheeses from 10% to 6.5% in dry matter (DM). This study investigated the effect of salt reduction on the fate of acid‐ and salt‐adapted Escherichia coli O157:H7 and Listeria monocytogenes, as well as the textural quality of recombined nonfat cheese. The cheese was manufactured using milk protein concentrate (85% protein) and skim milk...
Wed, 10/02/2019 - 03:22
Packaging is an intermediary product between producers and consumers. The most important role of packaging is to ensure the highest quality and safety of packaged products and to extend their shelf life. Given that microbiological contamination is a problem for manufacturers and consumers due to the fact that it reduces the quality of packaged products and poses a health risk, this work describes...
Wed, 10/02/2019 - 03:22
Honey, pineapple, chilli pepper, and onion extracts were investigated for their ability to inhibit enzymatic browning in sweet potatoes. Honey had the highest inhibition (41.39%–48.0%), comparable with l‐ascorbic acid. Heated onion extract increased polyphenol oxidase (PPO) inhibition by 2.5‐fold when 4‐methylcatechol was used as substrate. However, percentage inhibition decreased drastically (7....
Wed, 10/02/2019 - 03:22
Chemical stability is critical for maintaining the shelf life of foods, and strategies for controlling chemical deterioration should be investigated. This project evaluated the effects of iron and ultraviolet (UV) light on chemical stability using rebaudioside A degradation as a model reaction. Iron, citrate, and UV light exposure negatively affected the storage stability of rebaudioside A....
Wed, 10/02/2019 - 03:22
The current study evaluated the immunomodulatory effects of Carica papaya pulp and seeds methanol (MeOH) extracts on mice infected with Listeria monocytogenes. Gas chromatography–mass spectrometry analysis identified 10 active constituents in C. papaya seed MeOH extract and 10 compounds in C. papaya pulp MeOH extract. The experimental animals were divided into negative control (G1) group,...
Wed, 10/02/2019 - 03:22
Heme iron overload has been implicated as the main cause of the increased risk of cancer due to the consumption of red meat. However, fish and shellfish, teas, and spices contain up to five times more iron than red meat. There is insufficient evidence that iron intake in dietary red meat is the primary causal factor for colorectal cancer. In addition, harmful substances produced during the...
Wed, 10/02/2019 - 03:19
In this study, we aimed to determine the effect of exogenous stress factors (sodium chloride as osmotic stressor, hydrogen peroxide as an inducer of oxidative stress, white light irradiation, and low temperature) on the biosynthesis of carotenoids and lipids by red yeast (Rhodotorula glutinis, R. mucilaginosa, and R. gracilis) during cultivation in media containing potato wastewater and glycerol...
Wed, 10/02/2019 - 03:19
ABSTRACT Salmonellae represent one of the most common bacterial infection reagents in both humans and animals. For detection and epidemiological elucidation of Salmonella infections, determination of Salmonella serotypes and differentiation between different Salmonella isolates is crucial. In the first part of this study, Artificial Neural Network (ANN)-assisted Fourier transform infrared (FTIR...
Wed, 10/02/2019 - 03:18
ObjectivesTo describe the molecular characteristics of beta-lactamases in bloodstream-infection Escherichia coli isolated from elderly patients, and to determine the genotypic patterns of blaCMY–2 and blaADC–162.MethodsA total of 50 bloodstream-infection E. coli isolates were obtained from patients aged > 50 years at Shanghai Sixth People’s Hospital South Campus during 2015–2018. The isolates...
Wed, 10/02/2019 - 03:18
Electronic waste (e-waste) has caused a severe worldwide pollution problem. Despite increasing isolation of degradative microorganisms from e-waste contaminated environments, the mechanisms underlying their adaptive evolution in such habitats remain unclear. Sphingomonads generally have xenobiotic-degrading ability and may play important roles in bioremediation. Sphingobium hydrophobicum C1T,...
Wed, 10/02/2019 - 03:18
Acrylamide is formed during baking in some frequently consumed food products. It is proven to be carcinogenic in rodents and a probable human carcinogen. Thus, the food industry is working to find solutions to minimize its formation during processing. To better understand the sources of its formation, the present study is aimed at investigating how acrylamide concentration may be influenced by...
Wed, 10/02/2019 - 03:18
Two garlic-derived compounds, Propyl Propane Thiosulfonate (PTS) and Propyl Propane Thiosulfinate (PTSO), were examined for their efficacy against mycotoxigenic Fusarium species (F. graminearum, F. langsethiae, F. verticillioides). The objectives were to assess the inhibitory effect of these compounds on growth and mycotoxin production in vitro, and in situ in artificially inoculated wheat, oats...
Wed, 10/02/2019 - 03:18
The ability to produce enterohemolysin is regarded as a potential virulence factor for enterohemorrhagic Escherichia coli (EHEC) and is frequently associated with severe human diseases such as hemorrhagic colitis (HC) and the hemolytic uremic syndrome (HUS). The responsible toxin, which has also been termed EHEC-hemolysin (EHEC-Hly, syn. Ehx), belongs to the Repeats in Toxin (RTX)-family of pore-...
Wed, 10/02/2019 - 03:18
Peanuts are widely consumed in many local dishes in southeast Asian countries, especially in Malaysia which is one of the major peanut-importing countries in this region. Therefore, Aspergillus spp. and aflatoxin contamination in peanuts during storage are becoming major concerns due to the tropical weather in this region that favours the growth of aflatoxigenic fungi. The present study thus...
Wed, 10/02/2019 - 03:18
The diffusion of Panton–Valentine leukocidin (PVL)–positive methicillin-resistant S. aureus (MRSA) is a health problem in Algeria. The objectives of the study were to investigate the global distribution of methicillin-susceptible S. aureus (MSSA) and MRSA isolates in different ecological niches in this country. In total, 2246 samples were collected from humans, livestock, wild...
Wed, 10/02/2019 - 03:18
Shiga toxin-producing enterohaemorrhagic Escherichia coli (EHEC) O157:H7 is an important foodborne pathogen. Baicalein (5,6,7-trihydroxylflavone), a flavone isolated from the roots of Scutellaria baicalensis, is considered as a potential antibacterial agent to control foodborne pathogens. Among seven compounds selected by in silico screening of the natural compound database, baicalein inhibited...
Wed, 10/02/2019 - 03:18
Chronic Migraine (CM) is a disabling neurologic condition with a severe impact on functioning and quality of life. Successful therapeutic management of patients with CM is complex, and differences in therapeutic response could be attributable to genetically determined factors, sensitivity to pharmacological treatment, psychosocial and relational factors affecting the patient’s...
Wed, 10/02/2019 - 03:18
Cladosporium species are endophytic fungi that grow on organic matter and are considered food contaminants. The anti-microbial and anti-tumor naphthoquinones fusarubin (FUS) and anhydrofusarubin (AFU) were isolated using column chromatography from a Cladosporium species residing inside Rauwolfia leaves. The impact of FUS and AFU on cell growth was assessed in acute myeloid leukemia (OCI-AML3) and...
Wed, 10/02/2019 - 03:18
Clostridium perfringens type A causes gas gangrene characterized by myonecrosis and development of an effective therapy for treating affected patients is of clinical importance. It was recently reported that the expression of granulocyte colony-stimulating factor (G-CSF) is greatly up-regulated by C. perfringens infection. However, the role of G-CSF in C. perfringens-mediated myonecrosis is still...
Wed, 10/02/2019 - 03:18
Listeria monocytogenes is an intracellular facultative pathogen that causes listeriosis, a foodborne zoonotic infection. There are differences in the pathogenic potential of L. monocytogenes subtypes and strains. Comparison of the genome sequences among L. monocytogenes pathogenic strains EGD-e and F2365 with nonpathogenic L. innocua CLIP1182 and L. monocytogenes strain HCC23 revealed a set of...
Wed, 10/02/2019 - 03:18
Mycotoxins are ubiquitous and unavoidable harmful fungal products with the ability to cause disease in both animals and humans, and are found in almost all types of foods, with a greater prevalence in hot humid environments. These mycotoxins vary greatly in structure and biochemical effects; therefore, by better understanding the toxicological and pathological aspects of mycotoxins, we can be...
Wed, 10/02/2019 - 03:18
Brevetoxins are produced by dinoflagellates such as Karenia brevis in warm-water red tides and cause neurotoxic shellfish poisoning. They bind to voltage-gated sodium channels at neurotoxin receptor 5, making the channels more active by shifting the voltage-dependence of activation to more negative potentials and by slowing the inactivation process. Previous work using photoaffinity labeling...
Wed, 10/02/2019 - 03:18
Botulinum neurotoxin A (BoNT/A) appears to be one of the best intravesical treatments for interstitial cystitis/bladder painful syndrome (IC/BPS). We aimed to point out what the evidence is regarding the effects of BoNT/A intravesically injected in patients with IC/BPS. We performed a systematic review of all randomized controlled trials (RCTs) assessing BoNT/A for IC/BPS by using Medline, EMBASE...
Wed, 10/02/2019 - 03:18
Ruminants are less susceptible to the effects of mycotoxins than monogastric animals as their rumen microbiota are claimed to degrade and/or deactivate at least some of these toxic compounds. However, the mycotoxin degradation is not well-known yet. For this, a sensitive, specific, and accurate analytical method is needed to determine mycotoxins in the rumen fluid. This study aims to develop and...

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