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Research Publications from Peer-Reviewed Journals

Mon, 06/27/2016 - 14:20
In this study, we aimed to analyze the global response to iron in the broad-range host pathogen Vibrio vulnificus under the hypothesis that iron is one of the main signals triggering survival mechanisms both inside and outside its hosts. To this end, we selected a strain from the main zoonotic clonal-complex, obtained a mutant in the ferric-uptakeregulator (Fur), and analyzed their...
Mon, 06/27/2016 - 03:51
Publication date: January 2017 , Volume 71 Author(s): Wilhelm Bockelmann, Margarita Koslowsky, Stefanie Goerges, Siegfried Scherer, Charles M.A.P. Franz, Knut J. Heller The anti-listerial activity of Staphylococcus equorum SE3 isolated from cheese brine was tested in two different model cheese systems to ascertain its potential for use as a protective culture for smear cheese...
Mon, 06/27/2016 - 03:51
Publication date: January 2017 , Volume 71 Author(s): A.M. Roldán, I. Lloret, V. Palacios The aim of this study was to determine the effect of a submerged culture of “flor” velum yeast and lysozyme as treatments against bacterial contamination by lactic acid and acetic acid bacteria during the biological aging of sherry wine. Different submerged culture treatments with lysozyme were...
Mon, 06/27/2016 - 03:30
Summary Salmonella is an important human pathogen, and production animals as well as water are known potential sources. This study helped provide insight into the epidemiology of Salmonella by comparing Salmonella strains found in humans to those detected in production animals and water in the same geographic area and time frame. Salmonella was found in 55% of broiler, 30% of swine, 13% of dairy...
Mon, 06/27/2016 - 00:00
Abstract Microorganisms are the major cause of spoilage in most seafood products; however, only few microbes, called the specific spoilage organisms (SSOs), contribute to the offensive off-flavors associated with seafood spoilage. In food, microbial degradation manifests itself as spoilage, or changes in the sensory properties of a food product, rendering it unsuitable for human...
Sat, 06/25/2016 - 03:51
Publication date: January 2017 , Volume 71 Author(s): Abhinav Mishra, Miao Guo, Robert L. Buchanan, Donald W. Schaffner, Abani K. Pradhan Leafy greens contaminated with Salmonella enterica have been linked to large number of illnesses in many countries in recent years. Listeria monocytogenes is also a pathogen of concern for leafy greens because of its prevalence in the growing and...
Fri, 06/24/2016 - 17:00
Patrick Baron, Shannon Frattaroli The objective of this study was to document and understand the perceptions and opinions of small-scale poultry producers who market directly to consumers about microbial food safety risks in the poultry supply chain. Between January and November 2014, we conducted semi-structured, in-depth interviews with a convenience sample of 16 owner-operators of Maryland...
Fri, 06/24/2016 - 17:00
Anna A. Müller, Tamas Dolowschiak, Mikael E. Sellin, Boas Felmy, Carolin Verbree, Sandra Gadient, Alexander J. Westermann, Jörg Vogel, Salome LeibundGut-Landmann, Wolf-Dietrich Hardt Salmonella Typhimurium (S.Tm) is a common cause of self-limiting diarrhea. The mucosal inflammation is thought to arise from a standoff between the pathogen's virulence factors and the host's mucosal innate immune...
Fri, 06/24/2016 - 11:00
Staphylococcus aureus is one of the most important pathogens causing contagious mastitis in dairy cattle worldwide. The objectives of this study were to determine if recently described S. aureus genotype B was present among previously characterized isolates from cases of bovine intramammary infection in the United States and to compare pulsed-field gel electrophoresis (PFGE) to the combination of...
Fri, 06/24/2016 - 03:45
Publication date: January 2017 , Volume 71 Author(s): N. Nidhina, M.L. Bhavya, N. Bhaskar, S.P. Muthukumar, Pushpa S. Murthy Cow milk in infant and human nutrition is very significant. However, contamination of milk with aflatoxins is considered as a potential risk for human health. Aflatoxin is one of the major etiological factors in the development of hepatocellular carcinoma and...
Fri, 06/24/2016 - 03:45
Publication date: January 2017 , Volume 71 Author(s): Xiao-Ting Xuan, Tian Ding, Jiao Li, Ju-Hee Ahn, Yong Zhao, Shi-Guo Chen, Xing-Qian Ye, Dong-Hong Liu Time to detection experiments (TTD) based on turbidometry using an automatic Bioscreen C is a useful and straightforward method for estimating microbial growth parameters (lag time (λ), growth rate (μ) and “work to be done...
Fri, 06/24/2016 - 00:00
Food safety has attracted extensive attention around the world, and food-borne diseases have become one of the major threats to health. Staphylococcus aureus is a major food-borne pathogen worldwide and a frequent contaminant of foodstuffs. Staphylococcal enterotoxins (SEs) produced by some S. aureus strains will lead to staphylococcal food poisoning (SFP) outbreaks. The most common symptoms...
Fri, 06/24/2016 - 00:00
Abstract Staphylococcus aureus is a major food-borne pathogen due to the production of enterotoxin and is particularly prevalent in contaminated milk and dairy products. The lactic acid bacteria (LAB) are widely used as biocontrol agents in fermented foods which can inhibit pathogenic flora. In our work, we investigated the influence of three strains...
Thu, 06/23/2016 - 17:00
Romina S. Álvarez, Flavia Sacerdoti, Carolina Jancic, Adrienne W. Paton, James C. Paton, Cristina Ibarra, María M. Amaral Postdiarrheal hemolytic uremic syndrome (HUS) affects children under 5 years old and is responsible for the development of acute and chronic renal failure, particularly in Argentina. This pathology is a complication of Shiga toxin (Stx)-producing Escherichia coli infection...
Thu, 06/23/2016 - 12:13
Background. Tick transmission of Borrelia spirochetes to humans results in significant morbidity from Lyme disease worldwide. Serum concentrations of antibodies against outer surface protein A (OspA) were shown to correlate with protection from infection with Borrelia burgdorferi, the primary cause of Lyme disease in the United States. Methods. Mice transgenic for human immunoglobulin...
Thu, 06/23/2016 - 11:00
Abstract AimsAntimicrobial resistance poses a significant global healthcare predicament. An attractive approach to the dilemma of drug-resistant bacteria is the development and use of agents that interfere with the ability of pathogens to adhere to human tissue. The influence of sweet whey protein concentrate (SWPC), and selected hydrolysates of this material, on host-pathogen interactions of...
Thu, 06/23/2016 - 07:36
Summary Cattle are a common reservoir for Escherichia coli O157:H7. Prior to confirming its presence in a sample, proper isolation of E. coli O157 is necessary. Consequently, this study evaluated the ability of five commercial plating media to isolate E. coli O157 from 138 samples of fresh cattle faeces, water from water trough and pond, and surfaces of water trough and hay bunk. For the...
Thu, 06/23/2016 - 06:25
Publication date: November 2016 Source:LWT - Food Science and Technology, Volume 73 Author(s): Anne C. Eischeid, Sarah R. Stadig, Sara M. Handy, Frederick S. Fry, Jonathan Deeds Efficient methods for the species identification of seafood are important for ensuring food safety and detecting fraud. DNA barcoding, a technique based on PCR amplification and capillary sequencing of a...
Thu, 06/23/2016 - 05:15
Summary Infections with influenza A viruses (IAV) are highly prevalent in swine populations, and stable cocirculation of at least three lineages has been well documented in European swine – till 2009. However, since the emergence of the human pandemic pdmH1N1 virus in 2009, which has been (re)introduced into individual swine herds worldwide, the situation has been changing. These variations in...
Thu, 06/23/2016 - 05:15
Summary Verocytotoxigenic (vtx) Escherichia coli (VTEC) are zoonotic foodborne pathogens with the vtx operon encoded by lambdoid bacteriophage (phage). Despite much research on the host bacteria, similar data on the persistence of verocytotoxin converting phage and the ecological niches where transduction occurs are lacking and novel VTEC of important public health significance, have and continue...
Thu, 06/23/2016 - 05:15
Summary In May 2012, an outbreak of campylobacteriosis occurred in southern Sweden at a wedding reception affecting 44 persons. A total of 17 cases were notified (13 were culture positive for Campylobacter spp.). Epidemiological investigation suspected chicken liver pâté as the source of infection. The liver pâté had been deliberately undercooked, lightly fried to keep the right texture and mixed...
Thu, 06/23/2016 - 03:44
Publication date: December 2016 , Volume 70 Author(s): Barbara Druml, Maria Kaltenbrunner, Rupert Hochegger, Margit Cichna-Markl In order to increase their profit, food producers may be tempted to replace expensive meat species by cheaper ones. Due to their selectivity and sensitivity, PCR based methods are frequently applied to identify and quantify meat species to detect food...
Thu, 06/23/2016 - 03:44
Publication date: December 2016 , Volume 70 Author(s): Xiong Xiong, Lisa Guardone, María José Cornax, Lara Tinacci, Alessandra Guidi, Daniela Gianfaldoni, Andrea Armani China’s rapid economic development has determined profound changes in seafood consumption patterns, and nowadays besides the traditional luxury seafood, high-quality marine fish are consumed. Among these is...
Thu, 06/23/2016 - 03:44
Publication date: January 2017 , Volume 71 Author(s): Ce Shi, Xiaowei Zhang, Xingchen Zhao, Rizeng Meng, Zonghui Liu, Xiangrong Chen, Na Guo Staphylococcus aureus (S. aureus) is the leading cause of a broad range of human infections and associated with food poisoning worldwide. Nisin can be considered as a natural preservative and is widely used by the food industry. However,...
Thu, 06/23/2016 - 03:44
Publication date: January 2017 , Volume 71 Author(s): Antonio Valverde, Ana Aguilera, Antonio Valverde-Monterreal To assist the understanding and adoption of measurement uncertainty principles in chemical tests, during the last decade, a number of specific guidelines have been published by EURACHEM/CITAC, EUROLAB, NORDTEST and others international bodies. All these guidelines agree that...
Wed, 06/22/2016 - 23:45
Salmonella enterica serovar Typhimurium (S. Typhimurium) is a leading cause of salmonellosis. Poultry and poultry products are implicated in transmission of Salmonella to humans. In 2013, an outbreak of S. Typhimurium occurred that comprised 39 states within the United States and was associated with backyard flocks of chickens. Colonization of the avian host by S. Typhimurium requires numerous...
Wed, 06/22/2016 - 23:45
The main objective of this study was to determine the possible effects of thymoquinone (TQ) and curcumin (Cur) on immune-response and pathogenesis of H9N2 avian influenza virus (AIV) in turkeys. The experiment was performed on 75 non-vaccinated mixed-sex turkey poults, divided into 5 experimental groups (A, B, C, D, and E) of 15 birds each. Group A was kept as non-infected and a non-treated...
Wed, 06/22/2016 - 22:51
Abstract Previous studies have shown that silages treated with lactic acid bacteria (LAB) inoculants enhance ruminants’ performance. The objective of the current experiments was to develop an in vitro model to study interactions between LAB silage inoculants and inoculated silages and Escherichia coli (EC) in rumen fluid (RF). Our hypothesis was that some inoculants inhibit EC in RF. For that...
Wed, 06/22/2016 - 20:00
Eleven Salmonella spp. isolates with the antigenic type 11:z41:e,n,z15 - not referred to in the 9th edition of the White-Kauffman-Le Minor Scheme - were identified at the National Reference Laboratory for Salmonella in Greece. Their pulsed-field gel electrophoresis profiles were indistinguishable. No apparent epidemiological link has yet been identified; the results of a case-case study are...
Wed, 06/22/2016 - 17:00
Xian-Min Feng, Wen-Yu Zheng, Hong-Mei Zhang, Wen-Yan Shi, Yao Li, Bai-Ji Cui, Hui-Yan Wang Background Giardia lamblia is one of the most common infectious protozoans in human that may cause diarrhea in travelers. Searching for antigens that induced effectively protective immunity has become a key point in the development of vaccine against giardiasis. Methodology/Principal Findings Mice...
Wed, 06/22/2016 - 17:00
Pattra Charnchai, Sirima Suvarnakuta Jantama, Chutinun Prasitpuriprecha, Sunthorn Kanchanatawee, Kaemwich Jantama The viability and functionality of probiotics may be influenced industrial production processes resulting in a decrease in probiotic efficiency that benefit the health of humans. This study aimed to investigate the probiotic characteristics of Bifidobacterium strains isolated from...
Wed, 06/22/2016 - 10:35
Abstract AimsThis paper examined the relationships among hygiene indicators in take-away foodservice establishments and the impact of climatic conditions. Methods and ResultsA total of 7,545 samples were collected encompassing 2,050 from food handlers’ hands, 3,991 from stainless steel food contact surfaces and 1,504 samples from plastic food contact surfaces. The study covered a period of 43...
Wed, 06/22/2016 - 06:55
Summary Raising poultry flocks in urban backyard settings is becoming increasingly popular across the United States, but carries a risk of zoonotic infection. In the United States from 1990 to 2014, 53 outbreaks of human salmonellosis linked to live poultry have been documented resulting in 2611 known illnesses, 387 known hospitalizations and five known deaths (Centers for Disease Control and...
Wed, 06/22/2016 - 06:23
Publication date: November 2016 Source:LWT - Food Science and Technology, Volume 73 Author(s): Huhu Wang, Yun Jiang, Xuan Liu, Wenjuan Qian, Xinglian Xu, Guanghong Zhou Salmonella enterica has been concerned globally due to its serious contamination in the food industry and serious risks to human health. In this study, the diversity of growth, genotypic virulence and clustered...
Wed, 06/22/2016 - 06:23
Publication date: November 2016 Source:LWT - Food Science and Technology, Volume 73 Author(s): Laura Fernández-de Castro, Marian Mengíbar, Ángela Sánchez, Leire Arroyo, M Carmen Villarán, Elena Díaz de Apodaca, Ángeles Heras The present study focuses on the effects of heat and neutralization treatments on solubility, water vapour permeability and antimicrobial activity of...
Wed, 06/22/2016 - 03:44
Publication date: December 2016 , Volume 70 Author(s): Magdalena A. Olszewska, Tong Zhao, Michael P. Doyle This study determined the effects of different sanitizers (one phenolic-based, one chlorine-based, two QACs-based and one levulinic acid and SDS-based) on Listeria monocytogenes biofilm. The induction of the sub-lethal injury state and the biofilm formation characteristics as a...
Wed, 06/22/2016 - 03:44
Publication date: December 2016 , Volume 70 Author(s): Sara Schaarschmidt, Franziska Spradau, Helmut Mank, Jennifer L. Banach, H.J. van der Fels-Klerx, Petra Hiller, Bernd Appel, Juliane Bräunig, Heidi Wichmann-Schauer, Anneluise Mader Dried culinary herbs and spices (DCHS) are minor food components with widespread use. Despite their low water activity, some microorganisms...
Wed, 06/22/2016 - 03:20
Marion Zetzmann, Andrés Sánchez-Kopper, Mark S. Waidmann, Bastian Blombach, Christian U. Riedel
Wed, 06/22/2016 - 03:20
Lu Han, Dana Ziuzina, Caitlin Heslin, Daniela Boehm, Apurva Patange, David M. Sango, Vasilis P. Valdramidis, Patrick J. Cullen, Paula Bourke
Wed, 06/22/2016 - 00:15
Abstract Twenty three enterococci were isolated from Lighvan cheese. Enterococcal isolates identified by 16S rDNA sequencing, were evaluated for their safety and also examined for antibacterial activity and presence of the genes coding for enterocins. Four enterococcal isolates exhibited inhibitory activity against Listeria innocua and E. faecalis and harbored the bacteriocin genes (enterocins A...
Tue, 06/21/2016 - 17:00
Timothy J. Nice, Lisa C. Osborne, Vesselin T. Tomov, David Artis, E. John Wherry, Herbert W. Virgin In order for a virus to persist, there must be a balance between viral replication and immune clearance. It is commonly believed that adaptive immunity drives clearance of viral infections and, thus, dysfunction or viral evasion of adaptive immunity is required for a virus to persist. Type I...
Tue, 06/21/2016 - 16:35
The cryoprotective effects of trehalose, alginate, and its oligosaccharide on cooked shrimp were evaluated and compared with Na4P2O7 during frozen storage. Data indicated that significant inhibitory effects on decreases of water-holding capacity, water content, water activity, springiness, and chewiness values were more pronounced in trehalose-, alginate oligosaccharide-, and Na4P2O7-treated...
Tue, 06/21/2016 - 05:40
ABSTRACT BACKGROUNDOchratoxin A (OTA) contamination is highly prevalent in a variety of agricultural products including the commercially important coffee bean. As such rapid and accurate detection methods are considered necessary for the identification of OTA in green coffee beans. The goal of this research was to apply FT-NIR spectroscopy to detect and classify OTA contamination in green coffee...
Tue, 06/21/2016 - 03:44
Publication date: December 2016 , Volume 70 Author(s): Rubén Gil-Solsona, Montse Raro, Carlos Sales, Leticia Lacalle, Ramon Díaz, María Ibáñez, Joaquim Beltran, Juan Vicente Sancho, Felix J. Hernández The fraudulent miss-description on food product labels regarding origin or composition is a widespread problem. In this work, a metabolomic approach based on the use of ultra-...
Tue, 06/21/2016 - 03:44
Publication date: December 2016 , Volume 70 Author(s): Sara Schaarschmidt Dried spices and culinary herbs are vulnerable products, which are used for their aroma (and colour). They are important ingredients in many processed foods, e.g. meat products, dairy products, and bakery products, and in most of our dishes. Food processors and consumers have high expectations regarding the...
Tue, 06/21/2016 - 00:00
Ear rot is a serious disease that affects maize yield and grain quality worldwide. The mycotoxins are often hazardous to humans and livestock. In samples collected in China between 2009 and 2014, Fusarium verticillioides and F. graminearum species complex were the dominant fungi causing ear rot. According to the TEF-1α gene sequence, F. graminearum species complex in China included three...
Tue, 06/21/2016 - 00:00
Abstract This study was conducted to evaluate the effects of sixteen antibacterial formulations against Listeria monocytogenes in a sausage model using a standard experimental design with 4 independent factors at 2 levels (24). Four independent factors consisted of nisin (12.5–25 ppm), nitrite (100–200 ppm) and organic acid salts (1.55–3.1 %) and the mixture of Chinese cinnamon...
Mon, 06/20/2016 - 17:00
Stefan Bereswill, Marie E. Alutis, Ursula Grundmann, André Fischer, Ulf B. Göbel, Markus M. Heimesaat Background Human Campylobacter jejuni infections are progressively rising worldwide. Information about the molecular mechanisms underlying campylobacteriosis, however, are limited. In the present study we investigated whether cytokines such as IL-23, IL-22 and IL-18, which share pivotal functions...
Mon, 06/20/2016 - 13:50
Ginger (Zingiber officinale) seasoning has been traditionally used to preserve groundnut oils expelled locally in rural Southern India. The phytoconstituents of ginger extract were identified by GC-MS and assessed for bioavailability, in silico interactions, total antioxidant content, antifungal and anti-aflatoxigenic activities. The effects of ginger seasoning on the physicochemical,...

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