Research Publications from Peer-Reviewed Journals

Wed, 01/14/2015 - 01:14
Publication date: June 2015 , Volume 52 Author(s): Daniel T. Berhe , Anders J. Lawaetz , Søren B. Engelsen , Marchen S. Hviid , René Lametsch Control of the endpoint temperature (EPT) of cooked meat products is very critical to ensure that undercooked “ready to eat” products do not reach to the consumers. The objective of this study was to investigate if Raman spectroscopy in combination...
Wed, 01/14/2015 - 01:14
Publication date: 2 April 2015 , Volume 198 Author(s): Stephen F. Grove , Annamalai Suriyanarayanan , Balasubramanyam Puli , Heng Zhao , Mingming Li , Di Li , Donald W. Schaffner , Alvin Lee Infection with human norovirus (HuNoV) is considered a common cause of foodborne illness worldwide. Foodborne HuNoV outbreaks may result from consumption of food contaminated by an infected food...
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Publication date: 2 April 2015 , Volume 198 Author(s): Tareq M. Osaili , Anas A. Al-Nabulsi , Ziad Jaradat , Reyad R. Shaker , Dalia Z. Alomari , Maher M. Al-Dabbas , Akram R. Alaboudi , Mohammad Q. Al-Natour , Richard A. Holley Eggplant dip is an internationally popular appetizer, prepared in some instances under uncertain hygienic conditions with inconsistent refrigeration. This...
Wed, 01/14/2015 - 01:14
Publication date: 2 April 2015 , Volume 198 Author(s): Ashley Predmore , Gabriel C. Sanglay , Erin DiCaprio , Jianrong Li , R.M. Uribe , Ken Lee Ionizing radiation, whether by electron beams or gamma rays, is a non-thermal processing technique used to improve the microbial safety and shelf-life of many different food products. This technology is highly effective against bacterial...
Wed, 01/14/2015 - 01:14
Publication date: 2 April 2015 , Volume 198 Author(s): Kristin Weidemaier , Erin Carruthers , Adam Curry , Melody Kuroda , Eric Fallows , Joseph Thomas , Douglas Sherman , Mark Muldoon We describe a new approach for the real-time detection and identification of pathogens in food and environmental samples undergoing culture. Surface Enhanced Raman Scattering (SERS) nanoparticles are...
Wed, 01/14/2015 - 01:14
Muneko Nishijo, Pham The Tai, Nguyen Thi Nguyet Anh, Tran Ngoc Nghi, Hideaki Nakagawa, Hoang Van Luong, Tran Hai Anh, Yuko Morikawa, Tomoo Waseda, Teruhiko Kido, Hisao Nishijo In our previous study of 3-year-old children in a dioxin contamination hot spot in Vietnam, the high total dioxin toxic equivalent (TEQ-PCDDs/Fs)-exposed group during the perinatal period displayed lower Bayley III...
Wed, 01/14/2015 - 01:14
Martine C. Holst Sørensen, Yilmaz Emre Gencay, Tina Birk, Signe Berg Baldvinsson, Claudia Jäckel, Jens A. Hammerl, Christina S. Vegge, Horst Neve, Lone Brøndsted In this study we isolated novel bacteriophages, infecting the zoonotic bacterium Campylobacter jejuni. These phages may be used in phage therapy of C. jejuni colonized poultry to prevent spreading of the bacteria to meat products...
Wed, 01/14/2015 - 01:14
The United States has federal regulations in place to reduce the risk of seafood-related infection caused by the estuarine bacteria Vibrio vulnificus and Vibrio parahaemolyticus. However, data to support the development of regulations have been generated in a very few specific regions of the nation. More regionally specific data are needed to further understand the dynamics of human infection...
Wed, 01/14/2015 - 01:14
Norovirus is one of the most common causes of acute viral gastroenteritis. The virus is spread via the fecal-oral route, most commonly from infected food and water, but several outbreaks have originated from contamination of surfaces with infectious virus. In this study, a close surrogate of human norovirus causing gastrointestinal disease in mice, murine norovirus type 1 (MNV-1), retained...
Wed, 01/14/2015 - 01:14
The suitability of traditional microbial indicators (i.e., Escherichia coli and enterococci) has been challenged due to the lack of correlation with pathogens and evidence of possible regrowth in the natural environment. In this study, the relationships between alternative microbial indicators of potential human fecal contamination (Bacteroides thetaiotaomicron, Methanobrevibacter smithii, human...
Wed, 01/14/2015 - 01:14
The impact of proximity to a beef cattle feedlot on Escherichia coli O157:H7 contamination of leafy greens was examined. In each of 2 years, leafy greens were planted in nine plots located 60, 120, and 180 m from a cattle feedlot (3 plots at each distance). Leafy greens (270) and feedlot manure samples (100) were collected six different times from June to September in each year. Both E. coli O157...
Wed, 01/14/2015 - 01:14
Shiga toxin (Stx), a major virulence factor of enterohemorrhagic Escherichia coli, binds to target cells through a multivalent interaction between its B-subunit pentamer and the cell surface receptor globotriaosylceramide, resulting in a remarkable increase in its binding affinity. This phenomenon is referred to as the "clustering effect." Previously, we developed a multivalent peptide library...
Wed, 01/14/2015 - 01:14
Salmonella enterica is a member of the plant microbiome. Growth of S. enterica in sprouting-seed exudates is rapid; however, the active metabolic networks essential in this environment are unknown. To examine the metabolic requirements of S. enterica during growth in sprouting-seed exudates, we inoculated alfalfa seeds and identified 305 S. enterica proteins extracted 24 h postinoculation from...
Wed, 01/14/2015 - 01:14
In Mekong Delta farms (Vietnam), antimicrobials are extensively used, but limited data are available on levels of antimicrobial resistance (AMR) among Escherichia coli isolates. We performed a structured survey of AMR in E. coli isolates (n = 434) from 90 pig, chicken, and duck farms. The results were compared with AMR among E. coli isolates (n = 234) from 66 small wild animals (rats and shrews)...
Wed, 01/14/2015 - 01:14
Growth of enteropathogenic Escherichia coli E2348/69 was inhibited by bicarbonate in a dose-dependent manner, showing approximately 5% growth reduction at 5 mmol l−1 while kanamycin at 3.12 μg ml−1 inhibited growth by 15%, yet when kanamycin and bicarbonate were combined at these concentrations, inhibition increased to 80%. Unexpectedly, at bicarbonate concentrations >20 mmol l−1 enhancement...
Tue, 01/13/2015 - 01:21
When exposed to nutrient or non-nutrient germinants, individual Bacillus spores can return to life through germination followed by outgrowth. Laser tweezers Raman spectroscopy, and either differential interference contrast or phase contrast microscopy were used to analyze the slow dipicolinic acid (DPA) leakage (normally ~20% of spore DPA) from individual spores that takes place prior to the lag...
Tue, 01/13/2015 - 01:21
Publication date: 25 February 2015 , Volume 175, Issues 2–4 Author(s): Fernando L. Leite , Timothy A. Reinhardt , John P. Bannantine , Judith R. Stabel Mycobacterium avium subsp. paratuberculosis (MAP) is the causative agent of Johne's disease, a chronic enteric disease of ruminant animals. In the present study, blue native PAGE electrophoresis and 2D SDS-PAGE were used to separate MAP...
Sun, 01/11/2015 - 06:20
Publication date: March 2015 , Volume 101 Author(s): Oleksandr Tokarskyy , Keith R. Schneider , Adrian Berry , Steven A. Sargent , Aswathy Sreedharan After harvest, strawberries are cooled to 2–5 °C, typically by forced-air cooling. Hydrocooling is an alternative method that ensures faster cooling and with the addition of various sanitizers can reduce the risk of microbial cross...
Sun, 01/11/2015 - 03:20
Publication date: Available online 9 January 2015 Author(s): Zhihong Zhang , Wenting Liu , Hengyi Xu , Zoraida P. Aguilar , Nagendra P. Shah , Hua Wei Staphylococcus aureus is a spherical, gram-positive, pathogenic bacterium commonly associated with bovine mastitis and clinical infections. It is also recognized as a pathogen that causes outbreaks of food poisoning. The objective of...
Sun, 01/11/2015 - 01:18
Publication date: June 2015 , Volume 52 Author(s): A.Y. Ramos-Villarroel , O. Martín-Belloso , R. Soliva-Fortuny The application of pulsed light (PL) in combination with malic acid (MA) dips was evaluated regarding the inactivation of Listeria innocua or Escherichia coli inoculated on different fresh-cut products (avocado, watermelon and mushrooms) through refrigerated storage. The...
Sun, 01/11/2015 - 01:18
Publication date: June 2015 , Volume 52 Author(s): Hande Kaya-Celiker , P. Kumar Mallikarjunan , Archileo Kaaya In this study, Aspergillus spp., common colonists in peanut, were characterized, classified and quantified using FTIR coupled with ATR accessory. FTIR-ATR spectral data of infected peanut samples were preprocessed (mean-centering, smoothing the 1st derivative), and used for the...
Sun, 01/11/2015 - 01:18
Publication date: June 2015 , Volume 52 Author(s): Jose Ignacio Ruiz de Galarreta , Ana Butrón , Amaia Ortiz-Barredo , Rosa Ana Malvar , Amando Ordás , Arsenio Landa , Pedro Revilla Maize is traditionally used for bakery in several countries, and autochthonous varieties are increasingly demanded particularly for organic agriculture, but one of the dangers of cereal consumption is...
Sun, 01/11/2015 - 01:18
Publication date: June 2015 , Volume 52 Author(s): Klementina Kirezieva , Pieternel A. Luning , Liesbeth Jacxsens , Ana Allende , Gro S. Johannessen , Eduardo César Tondo , Andreja Rajkovic , Mieke Uyttendaele , Martinus A.J.S. van Boekel Increase in global trade raised questions regarding status of food safety management systems in fresh produce companies, especially from developing...
Sun, 01/11/2015 - 01:18
Publication date: June 2015 , Volume 52 Author(s): Haiquan Liu , Liqun Lu , Yingjie Pan , Xiaohong Sun , Cheng-An Hwang , Yong Zhao , Vivian C.H. Wu Listeria monocytogenes is an important foodborne pathogen. To effectively control this pathogen, it is necessary to have a method that can detect and differentiate L. monocytogenes from other Listeria species in food, environmental, and...
Sun, 01/11/2015 - 01:18
In this study, the growth of Arcobacter butzleri in poultry was evaluated as a function of storage temperature (5, 22.5, and 40°C), pH (5, 7, and 9), and NaCl concentration (0, 4, and 8%). A predictive model was developed using the absorbance-based response surface methodology to describe the growth rate. The primary model was obtained to predict a growth rate with a good fit (R2 ≥ 0.95),...
Sun, 01/11/2015 - 01:18
A comparison was made of the effect of atmospheres containing high oxygen (70% O2 and 30% CO2) or high nitrogen (70% N2 and 30% CO2) on the spoilage process during storage (at 4°C) of poultry fillets. Four samples of each gas atmosphere were analyzed at 7 sample points during storage. For this analysis, the growth of typical spoilage organisms (Brochothrix thermosphacta, Pseudomonas spp.,...
Sun, 01/11/2015 - 01:18
Consumption of contaminated poultry meat is still an important cause of Salmonella infections in humans. Colonization inhibition (CI) occurs when a live Salmonella strain is administered to chickens and subsequently protects against challenge with another Salmonella strain belonging to the same serotype. A Salmonella Enteritidis hilAssrAfliG deletion mutant has previously been proven to reduce...
Sun, 01/11/2015 - 01:18
We recently developed a novel selection method based on identification and selection of chickens with an inherently high and low phenotype of pro-inflammatory mediators, including interleukin (IL)-6, CXCLi2, and CCLi2. The resultant high line of chickens is more resistant to Salmonella enterica serovar Enteritidis (Salmonella Enteritidis) compared to the low line. In the current study, we sought...
Sun, 01/11/2015 - 01:18
Aims To investigate the pathogenic potential and genotypic diversity of Yersinia enterocolitica biotype 2 strains isolated in Brazil and to compare these strains with other Y. enterocolitica biotypes using ERIC-PCR and PFGE. Methods and Results Forty strains of Y. enterocolitica biotype 2 (B2) isolated from humans (5), the environment (34) and animal (1), in Brazil over 19 years were studied....
Sun, 01/11/2015 - 01:18
Aims Listeriosis is a frequent silage-associated disease in ruminants. The slugs Arion vulgaris are invaders in gardens, vegetable crops and meadows for silage production. Field and laboratory studies were conducted to clarify whether slugs could host Listeria monocytogenes and thereby constitute a threat to animal feed safety. Methods and Results Selective culture of L. monocytogenes from 79...
Sun, 01/11/2015 - 01:18
Publication date: 15 June 2015 , Volume 177 Author(s): Marlena K. Sheridan , Ryan J. Elias Wine tannins undergo modifications during fermentation and storage that can decrease their perceived astringency and increase color stability. Acetaldehyde acts as a bridging compound to form modified tannins and polymeric pigments that are less likely to form tannin–protein complexes than unmodified...
Sun, 01/11/2015 - 01:18
Publication date: 1 June 2015 , Volume 176 Author(s): Agnieszka Dudkiewicz , Alistair B.A. Boxall , Qasim Chaudhry , Kristian Mølhave , Karen Tiede , Peter Hofmann , Thomas P.J. Linsinger Electron microscopy is a recognized standard tool for nanomaterial characterization, and recommended by the European Food Safety Authority for the size measurement of nanomaterials in food. Despite...

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