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Research Publications from Peer-Reviewed Journals

Wed, 03/23/2016 - 06:40
Abstract AimsThe aim of this study was to investigate the potential of bioleaching for the treatment of an environmentally hazardous waste, a blast-furnace flue dust designated Theisen sludge. Methods and resultsBioleaching of Theisen sludge was investigated at acidic conditions with A. ferrooxidans in pure and mixed-species culture with Acidiphilium. In shaking-flask experiments bioleaching...
Wed, 03/23/2016 - 06:31
Abstract Cronobacter is an emerging food pathogen, especially in infants and neonates, often associated with the ingestion of contaminated Powdered Infant Formula (PIF). Therefore, regulations require the control of the absence of Cronobacter and of Salmonella, another important food pathogen, in these food products. So far, reference and alternative methods take up to several days, and no...
Wed, 03/23/2016 - 02:40
Abstract AimTo elucidate the distribution and circulation dynamics of Campylobacter and Salmonella in Japanese chicken broiler flocks. Methods and ResultsA two-year investigation of the distribution of Campylobacter and Salmonella was conducted in 25 broiler flocks at 9 farms in Japan from 2013 to 2014. Campylobacter and Salmonella tested positive in 11 (44.0%) and 24 (96.0%) broiler flocks,...
Wed, 03/23/2016 - 00:57
Publication date: October 2016 , Volume 68 Author(s): Matthew Schroeder, Lily Yang, Joseph Eifert, Renee Boyer, Melissa Chase, Sergio Nieto-Montenegro Signs can provide repetitive training on specific food safety practices for multicultural food processing employees. Posted signs for workers in many food processing facilities tend to be text-heavy and focus specifically on...
Wed, 03/23/2016 - 00:00
Increasing evidence has demonstrated that in utero exposure to environmental chemicals may interfere with fetal development and increase the risk of disease and cancer development later in life. Ochratoxin A (OTA) has been proven to induce diverse toxic effects including teratogenicity, carcinogenicity, immunotoxicity and potential endocrine disruption. Due to the continuous and widespread...
Tue, 03/22/2016 - 12:00
Abstract Objectives in this study were to model/predict simultaneous influences of apple O2-consumption/CO2-production rates and modified atmosphere packaging (MAP) (from volumetric concentrations of O2/CO2 on microbial growth (Aerobic mesophilic bacteria, AMB; Enterobacteriaceae, EBac) in 2 fresh-cut apple cultivars treated with five anti-browning treatments and stored in refrigerator. Growth...
Tue, 03/22/2016 - 11:55
Abstract Salted shrimp Jeotgal, a favorite in Korea, is raw fermented fish containing 20–30% NaCl, which serves to inhibit its decay for a certain period. However, Bacillus cereus has been detected in commercial salted–fermented shrimp. Therefore, the goal of the present study was to examine the effect of 5–15% NaCl on the inactivation of B. cereus in various salted shrimp stored for two weeks....
Tue, 03/22/2016 - 11:22
Publication date: Available online 22 March 2016 Author(s): Xihong Zhao, Yu-Chia Tsao, Fu-Jung Lee, Woo-Hu Tsai, Ching-Ho Wang, Tsung-Liang Chuang, Mu-Shiang Wu, Chii-Wann Lin A side-polished fiber optic surface plasmon resonance (SPR) sensor was fabricated to expose the core surface and then deposited with a 40nm thin gold film for the near surface sensing of effective...
Tue, 03/22/2016 - 09:10
Abstract AimsThe aim of this study has been to synthesize silver nanoparticles (AgNPs) by an eco-friendly and low-cost method using of the fungi Aspergillus terreus HA1N and Penicillium expansum HA2N as an alternative to chemical procedures mostly requiring drastic experimental conditions emitting toxic chemicals byproduct. Also, this study has been extended to evaluate the effect of AgNPs on the...
Tue, 03/22/2016 - 07:05
Publication date: September 2016 Source:LWT - Food Science and Technology, Volume 71 Author(s): C. Jadán Piedra, V. Sánchez, D. Vélez, V. Devesa Food is the main source of mercury for most people. To promote its toxic effect, ingested mercury must be solubilised during digestion and absorbed. The present work aimed to seek dietary components that reduce the quantity of soluble (...
Tue, 03/22/2016 - 02:45
e-First Articles. Campylobacter spp. are a substantial cause of gastroenteritis worldwide. Human infection can result from ingestion of contaminated food or water from a variety of sources, including the consumption of fresh produce that is contaminated with the pathogen via the use of contaminated irrigation water. Using molecular methods, we investigated the occurrence of Campylobacter in the...
Mon, 03/21/2016 - 17:00
Anne Mayer-Scholl, Jayaseelan Murugaiyan, Jennifer Neumann, Peter Bahn, Sabine Reckinger, Karsten Nöckler Human trichinellosis occurs through consumption of raw or inadequately processed meat or meat products containing larvae of the parasitic nematodes of the genus Trichinella. Currently, nine species and three genotypes are recognized, of which T. spiralis, T. britovi and T. pseudospiralis...
Mon, 03/21/2016 - 17:00
Josephine A. Afema, Denis K. Byarugaba, Devendra H. Shah, Esther Atukwase, Maria Nambi, William M. Sischo In sub‒Saharan Africa, non‒typhoidal Salmonellae (NTS) cause invasive disease particularly in children and HIV infected adults, but the disease epidemiology is poorly understood. Between 2012 and 2013, we investigated NTS sources and transmission in Kampala. We detected Salmonella in 60% of...
Mon, 03/21/2016 - 12:52
Abstract AimsTo investigate the erythromycin resistance patterns and mechanism for Campylobacter isolates in China. Methods and ResultsThe minimum inhibitory concentrations of erythromycin on 858 Chinese Campylobacter isolates were analysed. PCR and DNA sequencing were used to identify mutations in the 23S rRNA and the presence of the ermB gene in the 158 erythromycin resistance isolates (18.4...
Mon, 03/21/2016 - 12:11
Background: Shiga toxin (Stx) produced by pathogenic Escherichia coli (E. coli) is considered to be an AB5 heterohexamer; however no known mechanisms ensure AB5 assembly.Results: Stx released by E. coli is not in the AB5 conformation and assembles at receptor interface.Conclusion: Unassembled Stx can impart toxicity.Significance: Preventing AB5 assembly is a potential treatment for Stx associated...
Mon, 03/21/2016 - 12:03
Publication date: Available online 21 March 2016 Author(s): Natacha Laprade, Michel Cloutier, David R. Lapen, Edward Topp, Graham Wilkes, Richard Villemur, Izhar U.H. Khan Campylobacter species are one of the leading causes of bacterial gastroenteritis in humans worldwide. This twofold study was sought to: i) develop and optimize four single-tube multiplex PCR (mPCR) assays...
Mon, 03/21/2016 - 11:36
Abstract Vibrio species naturally reside in the aquatic environment and a major metabolite in this habitat is the chitinous exoskeletons of crustacean zooplankton. In addition to serving as a nutrient, chitin-derived oligosaccharides also induce natural genetic competence in many Vibrio spp., a physiological state in which bacteria take up DNA from the extracellular environment and can integrate...
Mon, 03/21/2016 - 11:01
This paper describes the microfluidic streak plate (MSP), a facile method for high-throughput microbial cell separation and cultivation in nanoliter sessile droplets. The MSP method builds upon the conventional streak plate technique by using microfluidic devices to generate nanoliter droplets that can be streaked manually or robotically onto petri dishes prefilled with carrier oil for...
Mon, 03/21/2016 - 11:01
Shiga toxin (Stx)-producing Escherichia coli (STEC) bacteria are foodborne pathogens responsible for diarrhea and hemolytic-uremic syndrome (HUS). Shiga toxin, the main STEC virulence factor, is encoded by the stx gene located in the genome of a bacteriophage inserted into the bacterial chromosome. The O26:H11 serotype is considered to be the second-most-significant HUS-causing serotype worldwide...
Mon, 03/21/2016 - 11:01
Scombrotoxin fish poisoning (SFP) remains the main contributor of fish poisoning incidents in the United States, despite efforts to control its spread. Psychrotrophic histamine-producing bacteria (HPB) indigenous to scombrotoxin-forming fish may contribute to the incidence of SFP. We examined the gills, skin, and anal vents of yellowfin (n = 3), skipjack (n = 1), and albacore (n = 6) tuna for the...
Mon, 03/21/2016 - 11:01
Human enteric viruses are among the main causative agents of shellfish-associated outbreaks. In this study, the kinetics of viral bioaccumulation in live oysters and the heat stabilities of the predominant enteric viruses were determined both in tissue culture and in oyster tissues. A human norovirus (HuNoV) GII.4 strain, HuNoV surrogates (murine norovirus [MNV-1], Tulane virus [TV]), hepatitis A...
Mon, 03/21/2016 - 11:01
Yesso scallop-pathogenic Vibrio splendidus strain JZ6 was found to have the highest virulence at 10°C, while its pathogenicity was significantly reduced with increased temperature and completely incapacitated at 28°C. In the present study, comparative transcriptome analyses of JZ6 and another nonpathogenic V. splendidus strain, TZ19, were conducted at two crucial culture temperatures (10...
Mon, 03/21/2016 - 02:27
Abstract Salmonella is one of the important bacteria in egg and as major source in bacterial infection transfer to human and animals. It has been proven that gyrA gene can mediate in resistance and reduced susceptibility to fluoroquinolones, therefore the aim of the present study was to determine gyrA gene polymorphism in S. enterica ser. Enteritidis isolated from egg shell using PCR-RFLP assay....
Mon, 03/21/2016 - 02:26
Abstract In the present study Bunium persicum essential oil (BEO) was examined for its phytochemical properties, In vitro antioxidant activities, antibacterial properties against Salmonella Typhimurium, Escherichia coli O157:H7, Staphylococcus aureus and Listeria monocytogenes and antibacterial effects of the oil on survival of L. monocytogenes and E. coli O157:H7 in Iranian white cheese. Results...
Mon, 03/21/2016 - 02:26
Abstract Ochratoxin A (OTA) is a mycotoxin produced by fungal species which can contaminate cereal-based products such as bread. The objective of this study was to determine the stability of the mycotoxin during bread making. Bread was prepared on a pilot-plant scale by using wheat flour spiked OTA. During this process, mycotoxin level was determined after the first fermentation at 30C for 90 min...
Mon, 03/21/2016 - 02:26
Abstract To determine if Campylobacter isolation method influenced antimicrobial susceptibility results, the minimum inhibitory concentrations (MIC) of nine antimicrobials were compared for 291 pairs of Campylobacter isolates recovered from chicken carcass rinse samples using direct plating and an enrichment method. Among the isolates 64.1% were C. jejuni, 35.7% were C. coli, and 0.2% were C....
Mon, 03/21/2016 - 00:00
Ochratoxin A (OTA), mainly produced by Aspergillus and Penicillum species, is one of the most important mycotoxin contaminants in agricultural products. It is detrimental to human health because of its nephrotoxicity, hepatotoxicity, carcinogenicity, teratogenicity, and immunosuppression. OTA structurally consists of adihydrocoumarin moiety linked with l-phenylalanine via an amide bond. OTA...
Mon, 03/21/2016 - 00:00
The mycotoxin fumonisin B1 (FB1) is a frequent contaminant of feed and causes various adverse health effects in domestic animals. Hence, effective strategies are needed to prevent the impact of fumonisins on livestock productivity. Here we evaluated the capability of the fumonisin carboxylesterase FumD to degrade FB1 to its less toxic metabolite hydrolyzed FB1 (HFB1) in the gastrointestinal tract...
Sun, 03/20/2016 - 18:03
Publication date: Available online 20 March 2016 Author(s): Sara Kovanen, Rauni Kivistö, Ann-Katrin Llarena, Ji Zhang, Ulla-Maija Kärkkäinen, Tamara Tuuminen, Jaakko Uksila, Marjaana Hakkinen, Mirko Rossi, Marja-Liisa Hänninen Campylobacter jejuni is the leading cause of bacterial gastroenteritis and chicken is considered a major reservoir and source of human...
Sun, 03/20/2016 - 03:37
Publication date: Available online 19 March 2016 Author(s): Kevin Yana Njabo, Linda Zanontian, Basma N. Sheta, Ahmed Samy, Shereen Galal, Frederic Paik Schoenberg, Thomas B Smith H5N1 highly pathogenic avian influenza virus (HPAIV) continues to cause mortality in poultry and threaten human health at a panzootic scale in Egypt since it was reported in 2006. While the early focus...
Sun, 03/20/2016 - 03:37
Publication date: Available online 19 March 2016 Author(s): Ming-Shiuh Lee, Li-Hsuan Chen, Yen-Ping Chen, Yu-Pin Liu, Wan-Chen Li, Yeou-Liang Lin, Fan Lee A severe epidemic, affecting mainly goose populations, broke out in early January 2015.The causative agents were identified as novel H5 avian influenza viruses carrying N2, N3, and N8 subtypes of the neuraminidase gene. From...
Sat, 03/19/2016 - 18:02
Publication date: Available online 19 March 2016 Author(s): Pratheeba Yogendrarajah, An Vermeulen, Liesbeth Jacxsens, Evangelia Mavromichali, Sarah De Saeger, Bruno De Meulenaer, Frank Devlieghere The growth and mycotoxin production of three Aspergillus flavus isolates and an Aspergillus parasiticus isolate were studied in whole black peppercorns (Piper nigrum L.) using a full...
Sat, 03/19/2016 - 10:40
Publication date: Available online 19 March 2016 Author(s): Sujin Kang, Su-ji Kim, Sung Hyun Kim, Ji-Hyun Lee, Shin Young Park, Sang-Do Ha Enteric noroviruses are occasionally detected in Kimchi, which is a traditional dish made of fermented vegetables. This study was aimed at examining the effects of two levels of salt concentrations on the survival of murine norovirus-1 (MNV-1...
Fri, 03/18/2016 - 18:01
Publication date: Available online 18 March 2016 Author(s): Tomasz Seliwiorstow, Julie Baré, Dirk Berkvens, Inge Van Damme, Mieke Uyttendaele, Lieven De Zutter Campylobacter carcass contamination was quantified across the slaughter line during processing of Campylobacter positive batches. These quantitative data were combined together with information describing slaughterhouse...
Fri, 03/18/2016 - 11:50
Publication date: Available online 18 March 2016 Author(s): Alexandra Duarte, Tomasz Seliwiorstow, William G. Miller, Lieven De Zutter, Mieke Uyttendaele, Katelijne Dierick, Nadine Botteldoorn The aim of this study was to compare different typing methods, individually and combined, for use in the monitoring of Campylobacter in food. C. jejuni (n=94) and C. coli (n=52) isolated...
Thu, 03/17/2016 - 17:48
Publication date: Available online 17 March 2016 Author(s): Qiumin Ma, P. Michael Davidson, Qixin Zhong It was previously found that blending soybean oil with cinnamon bark oil (CBO), eugenol or thyme oil, Tween 80, and equal masses of water and propylene glycol could be used to prepare microemulsions. In the present study, the objective was to determine the antimicrobial activity of...
Thu, 03/17/2016 - 17:48
Publication date: Available online 17 March 2016 Author(s): Sofia M. Santillana Farakos, Régis Pouillot, Nathan Anderson, Rhoma Johnson, Insook Son, Jane Van Doren Salmonella has been shown to survive in tree nuts over long periods of time. This survival capacity and its variability are key elements for risk assessment of Salmonella in tree nuts. The aim of this study was to...
Thu, 03/17/2016 - 17:48
Publication date: Available online 17 March 2016 Author(s): C.O.A. Møller, A.S. Sant'Ana, S.K.H. Hansen, M.J. Nauta, L.P. Silva, V.O. Alvarenga, D. Maffei, F.F.P. Silva, J.T. Lopes, B.D.G.M. Franco, S. Aabo, T.B. Hansen In a previous study, a model was developed to describe the transfer and survival of Salmonella during grinding of pork (Møller, C.O.A., Nauta, M.J.,...
Thu, 03/17/2016 - 17:00
Armin A. Weiser, Christian Thöns, Matthias Filter, Alexander Falenski, Bernd Appel, Annemarie Käsbohrer FoodChain-Lab is modular open-source software for trace-back and trace-forward analysis in food-borne disease outbreak investigations. Development of FoodChain-Lab has been driven a need for appropriate software in several food-related outbreaks in Germany since 2011. The software allows...
Thu, 03/17/2016 - 11:13
Publication date: Available online 16 March 2016 Author(s): Qiudong Su, Minzhuo Guo, Zhiyuan Jia, Feng Qiu, Xuexin Lu, Yan Gao, Qingling Meng, Ruiguang Tian, Shengli Bi, Yao Yi Hepatitis A virus (HAV) infection can stimulate the production of antibodies to structural and non‐structural proteins of the virus. However, vaccination with an inactivated or attenuated HAV...
Thu, 03/17/2016 - 04:10
Abstract The objective of this study was to assess the effects of Lb. rhamnosus LOCK900 probiotic additive, lactic acid and incubation process, i.e., the moment of S. aureus contamination on the growth and survival rate of the pathogen in carrot juice. Both the Lb. rhamnosus LOCK900 additive and the incubation process (32C) had an impact on the number of S aureus in the carrot juice (P < 0.05...
Thu, 03/17/2016 - 04:06
Abstract Pangasius hypophthalmus fillets, classified according to different frozen technologies, were subjected to microbiological (Psychrophilic Total Aerobic Count = PTAC, Enterobacteriacea, Staphylococcus aureus, Salmonella spp. and Listeria monocytogenes) and chemical analyses (Hg, Pb, Cd and six “indicator” congeners of polychlorinated biphenyls=PCB6). Mean count of psychrophilic aerobic...
Thu, 03/17/2016 - 04:05
Abstract The objective of this study was to determine the prevalence and to characterize multi-resistant Staphylococcus spp. in raw poultry liver intended for human consumption. Staphylococcus was isolated from 116 of 120 raw liver samples (96.7%; CI 95% ± 3.2). One hundred and thirty-six isolates (73.1% CI 95% ±7.93) were resistant to at least one antimicrobial while 30 isolates (25.9% CI 95% ±7...
Thu, 03/17/2016 - 03:00
e-First Articles. Sewage sludge recovered from wastewater treatment plants contains antibiotic residues and is rich in antibiotic resistance genes, selected for and enriched in the digestive tracts of human using antibiotics. The use of sewage sludge as a crop fertilizer constitutes a potential route of human exposure to antibiotic resistance genes through consumption of contaminated crops....

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