Abstract:
:Human noroviruses (HuNoVs) are a major cause of food borne gastroenteritis worldwide. They are often transmitted via infected and shedding food handlers manipulating foods such as deli sandwiches. The presented study aimed to simulate HuNoV transmission during the preparation of deli sandwiches in a sandwich bar. A quantitative exposure model was developed by combining the GoldSim® and @Risk® software packages. Input data were collected from scientific literature and from a two week observational study performed at two sandwich bars. The model included three food handlers working during a three hour shift on a shared working surface where deli sandwiches are prepared. The model consisted of three components. The first component simulated the preparation of the deli sandwiches and contained the HuNoV reservoirs, locations within the model allowing the accumulation of NoV and the working of intervention measures. The second component covered the contamination sources being (1) the initial HuNoV contaminated lettuce used on the sandwiches and (2) HuNoV originating from a shedding food handler. The third component included four possible intervention measures to reduce HuNoV transmission: hand and surface disinfection during preparation of the sandwiches, hand gloving and hand washing after a restroom visit. A single HuNoV shedding food handler could cause mean levels of 43±18, 81±37 and 18±7 HuNoV particles present on the deli sandwiches, hands and working surfaces, respectively. Introduction of contaminated lettuce as the only source of HuNoV resulted in the presence of 6.4±0.8 and 4.3±0.4 HuNoV on the food and hand reservoirs. The inclusion of hand and surface disinfection and hand gloving as a single intervention measure was not effective in the model as only marginal reductions of HuNoV levels were noticeable in the different reservoirs. High compliance of hand washing after a restroom visit did reduce HuNoV presence substantially on all reservoirs. The model showed that good handling practices such as washing hands after a restroom visit, hand gloving, hand disinfection and surface disinfection in deli sandwich bars were an effective way to prevent HuNoV contamination of the prepared foods, but it also demonstrated that further research is needed to ensure a better assessment of the risk of HuNoV transmission during preparation of foods.
journal_name
Int J Food Microbioljournal_title
International journal of food microbiologyauthors
Stals A,Jacxsens L,Baert L,Van Coillie E,Uyttendaele Mdoi
10.1016/j.ijfoodmicro.2014.12.004subject
Has Abstractpub_date
2015-03-02 00:00:00pages
126-36eissn
0168-1605issn
1879-3460pii
S0168-1605(14)00598-4journal_volume
196pub_type
杂志文章abstract::Based on reaction kinetics and thermodynamic considerations a mathematical model was developed to describe the thermal death rate of microbes as a function of environmental factors such as temperature, water activity, pH and redox potential. The mathematical model is discussed and validated by fitting to data sets of ...
journal_title:International journal of food microbiology
pub_type: 杂志文章
doi:10.1016/s0168-1605(00)00474-8
更新日期:2001-03-20 00:00:00
abstract::The purpose of this study was to investigate the suitability of Fourier transform infrared (FTIR) spectroscopy as rapid technique to be used to investigate the secondary structure of proteins in aqueous solution and its changes as a consequence of microbial proteolytic activity as well as to assess or identify the con...
journal_title:International journal of food microbiology
pub_type: 杂志文章
doi:10.1016/s0168-1605(01)00578-5
更新日期:2001-09-19 00:00:00
abstract::Nixtamalization is a traditional process that improves the nutritional quality of corn. To provide a means of utilizing the nutritional benefits of nixtamalized corn and improve product acceptability, lactic acid fermentation was applied. The objective of the study was to study the microbial profile and establish the ...
journal_title:International journal of food microbiology
pub_type: 杂志文章
doi:10.1016/S0168-1605(03)00114-4
更新日期:2004-10-01 00:00:00
abstract::The influence of the electric field strength, the treatment time, the total specific energy and the conductivity of the treatment medium on the Listeria monocytogenes inactivation by pulsed electric fields (PEF) has been investigated. L. monocytogenes inactivation increased with the field strength, treatment time and ...
journal_title:International journal of food microbiology
pub_type: 杂志文章
doi:10.1016/s0168-1605(03)00056-4
更新日期:2003-10-15 00:00:00
abstract::Quaternized chitosan: N-(2-hydroxyl-phenyl)-N,N-dimethyl chitosan (NHPDCS), N-(5-chloro-2-hydroxyl-phenyl)-N,N-dimethyl chitosan (NCHPDCS), N-(2-hydroxyl-5-nitro-phenyl)-N,N-dimethyl chitosan (NHNPDCS) and N-(5-bromic-2-hydroxyl-phenyl)-N,N-dimethyl chitosan (NBHPDCS) were synthesized and their antifungal activities a...
journal_title:International journal of food microbiology
pub_type: 杂志文章
doi:10.1016/j.ijfoodmicro.2007.07.003
更新日期:2007-09-15 00:00:00
abstract::The injuries caused by spray drying (SD) of three potential probiotic lactobacilli isolated from kefir grains and the impact on some probiotic properties, were evaluated. Results demonstrated that Lactobacillus plantarum 83114 and L. kefir 8321 showed a slight reduction of viability (0.11 and 0.29 log CFU/ml respectiv...
journal_title:International journal of food microbiology
pub_type: 杂志文章
doi:10.1016/j.ijfoodmicro.2010.11.005
更新日期:2011-01-05 00:00:00
abstract::Microbiological sampling of Norvegia cheese from three cheese factories was done during ripening. The evolution of aerobic mesophilic bacteria, lactococci, lactobacilli, enterococci, presumptive leuconostoc and pediococci was investigated after 30, 90, 180 and 270 days of ripening. Isolates (135) of non-starter lactic...
journal_title:International journal of food microbiology
pub_type: 杂志文章
doi:10.1016/j.ijfoodmicro.2004.01.012
更新日期:2004-08-01 00:00:00
abstract::The presence of Listeria spp. was investigated in a total of 3685 food samples obtained from different industries and markets of Northern Spain in the last 4 years. The samples analyzed include fresh raw products (meat, milk and poultry) and treated products (cooked and cured meats, frozen vegetables and smoked salmon...
journal_title:International journal of food microbiology
pub_type: 杂志文章
doi:10.1016/s0168-1605(03)00314-3
更新日期:2004-02-01 00:00:00
abstract::This study aimed to evaluate the effect of soft (Triticum aestivum) and durum (Triticum durum) wheat flours at different extraction rate (type 00, 0, 1 and 2) and wholemeal flours on the microbial composition and functionality of type I sourdough. Enterobacteriaceae constituted the main component of the microbiome of ...
journal_title:International journal of food microbiology
pub_type: 杂志文章
doi:10.1016/j.ijfoodmicro.2018.08.009
更新日期:2019-08-02 00:00:00
abstract::Antagonistic yeasts were isolated from the epiphytic flora associated with grape berries cv. Negroamaro and identified at species level using molecular methods. A total of 144 yeast isolates were tested in a preliminary screening on agar to select isolates showing a killer activity against Aspergillus carbonarius and ...
journal_title:International journal of food microbiology
pub_type: 杂志文章
doi:10.1016/j.ijfoodmicro.2005.12.004
更新日期:2006-04-25 00:00:00
abstract::The aim of this study was to compare the sequence of the astA gene found in 8 Korean and 11 Japanese Escherichia coli isolates. Conventional PCR was used to amplify the astA gene from the chromosomal and plasmid DNA preparation samples of each isolate using commercial DNA extraction kits. Cloning of the PCR products, ...
journal_title:International journal of food microbiology
pub_type: 杂志文章
doi:10.1016/j.ijfoodmicro.2016.11.017
更新日期:2017-02-21 00:00:00
abstract::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 handler in the foodservice environment, in which bare-hand contact, lack of hand washing, and inadequate cleaning and disinf...
journal_title:International journal of food microbiology
pub_type: 杂志文章
doi:10.1016/j.ijfoodmicro.2014.12.023
更新日期:2015-04-02 00:00:00
abstract::Genetically modified microorganisms (GMMs) are involved in the production of a variety of food and feed. The release and consumption of these products can raise questions about health and environmental safety. Therefore, the European Union has different legislative instruments in place in order to ensure the safety of...
journal_title:International journal of food microbiology
pub_type: 杂志文章
doi:10.1016/j.ijfoodmicro.2013.03.013
更新日期:2013-10-01 00:00:00
abstract::Unfiltered vinegar samples collected from three oxidation cycles of the submerged industrial production of each, red wine and organic apple cider vinegars, were sampled in a Slovene vinegar producing company. The samples were systematically collected from the beginning to the end of an oxidation cycle and used for cul...
journal_title:International journal of food microbiology
pub_type: 杂志文章
doi:10.1016/j.ijfoodmicro.2016.02.007
更新日期:2016-04-16 00:00:00
abstract::Using natural additives to preserve foods has become popular due to consumer demands for nature and safety. Antimicrobial activity is one of the most important properties in many plant essential oils (EOs). The antimicrobial activity of the essential oil of Litsea cubeba (LC-EO) from Taiwan and the antimicrobial impac...
journal_title:International journal of food microbiology
pub_type: 杂志文章
doi:10.1016/j.ijfoodmicro.2012.03.005
更新日期:2012-05-01 00:00:00
abstract::Exposure to mild stress conditions can activate stress adaptation mechanisms and provide cross-resistance towards otherwise lethal stresses. In this study, an approach was followed to select molecular biomarkers (quantitative gene expressions) to predict induced acid resistance after exposure to various mild stresses,...
journal_title:International journal of food microbiology
pub_type: 杂志文章
doi:10.1016/j.ijfoodmicro.2013.03.014
更新日期:2013-10-01 00:00:00
abstract::Whole genome sequencing (WGS) has made impressive progress in the field of molecular biology. Its most common application for public health is in the area of surveillance of food-borne diseases. WGS has the potential for providing a large amount of information, such as the identification of the strain type, the charac...
journal_title:International journal of food microbiology
pub_type: 杂志文章
doi:10.1016/j.ijfoodmicro.2020.108941
更新日期:2021-01-16 00:00:00
abstract::As human population increases worldwide, water quality will become increasingly problematic, and food consumed raw may be of higher risk. This is already evident for oysters grown in coastal areas - despite regulations based on bacterial indicators, oysters are still implicated in food-borne outbreaks worldwide. The p...
journal_title:International journal of food microbiology
pub_type: 杂志文章
doi:10.1016/j.ijfoodmicro.2018.07.016
更新日期:2018-12-02 00:00:00
abstract::Several model types have already been developed to describe the boundary between growth and no growth conditions. In this article two types were thoroughly studied and compared, namely (i) the ordinary (linear) logistic regression model, i.e., with a polynomial on the right-hand side of the model equation (type I) and...
journal_title:International journal of food microbiology
pub_type: 杂志文章
doi:10.1016/j.ijfoodmicro.2006.09.026
更新日期:2007-03-20 00:00:00
abstract::Lactococcus lactis strains were divided into two groups based on their ability to grow in the presence of an upper limit of either 2% w/v NaCl (sensitive) or 4% w/v NaCl (tolerant). Growth inhibition of NaCl tolerant strains was substantially relieved by glycine betaine which was accumulated in significant amounts whe...
journal_title:International journal of food microbiology
pub_type: 杂志文章
doi:10.1016/s0168-1605(00)00168-9
更新日期:2000-04-10 00:00:00
abstract::The long-chain fatty acid composition of yeast strains was determined for several species associated with the wine industry. The Saccharomyces cerevisiae, Zygosaccharomyces bailii, Saccharomycodes ludwigii, Schizosaccharomyces pombe, Brettanomyces/Dekkera spp., Pichia anomala, Pichia membranaefaciens and Lodderomyces ...
journal_title:International journal of food microbiology
pub_type: 杂志文章
doi:10.1016/s0168-1605(97)00096-2
更新日期:1997-09-16 00:00:00
abstract::Alicyclobacillus acidoterrestris is a spoilage bacterium in fruit juices leading to high economic losses. The present study evaluated the effect of sporulation medium on the thermal inactivation kinetics of A. acidoterrestris DSM 3922 spores in apple juice (pH3.82±0.01; 11.3±0.1 °Brix). Bacillus acidocaldarius agar (B...
journal_title:International journal of food microbiology
pub_type: 杂志文章
doi:10.1016/j.ijfoodmicro.2014.07.033
更新日期:2014-10-17 00:00:00
abstract::Solid-state fermentation is a dynamic process involved with complex microbiome. Microbial structure and succession significantly affect the yield and quality of fermentation productions. Although the importance of microbial structure was extensively studied, the significance of microbial succession rate remains unclea...
journal_title:International journal of food microbiology
pub_type: 杂志文章
doi:10.1016/j.ijfoodmicro.2019.108350
更新日期:2019-12-02 00:00:00
abstract::A survey of the natural occurrence of deoxynivalenol (DON) in barley harvested in Uruguay from 1996 to 2002 was conducted. A total of 292 samples were analyzed for DON by an immunochemical method using inmunoaffinity columns and fluorimetric detection. Between 26 and 100% of the samples were positive for DON while mea...
journal_title:International journal of food microbiology
pub_type: 杂志文章
doi:10.1016/j.ijfoodmicro.2006.08.006
更新日期:2007-03-10 00:00:00
abstract::The diversity of the mycobiota community occurring on the surface of fermented dry sausages and in the environment of the processing plants was studied. The manufacturing plants (five in total) were located in three different areas of southern Buenos Aires province (Argentina). Samples were collected from two types of...
journal_title:International journal of food microbiology
pub_type: 杂志文章
doi:10.1016/j.ijfoodmicro.2010.06.016
更新日期:2010-08-15 00:00:00
abstract::The effect of irradiation (2 kGy) on growth of and toxin production by Staphylococcus aureus and Bacillus cereus in roast beef and gravy during storage at abuse temperatures (15 and 22 degrees C) was assessed by inoculation studies. Irradiation resulted in a 3-4 log10 reduction in numbers of both pathogens. Whenever B...
journal_title:International journal of food microbiology
pub_type: 杂志文章
doi:10.1016/0168-1605(93)90004-z
更新日期:1993-03-01 00:00:00
abstract::Listeria monocytogenes is considered to be a ubiquitous organism occurring in both terrestrial and aquatic habitats. This organism has been isolated from fish and fishery products from different parts of the world and interestingly the incidence rate reported from tropical fish is rather low. Varying methodologies hav...
journal_title:International journal of food microbiology
pub_type: 杂志文章,评审
doi:10.1016/s0168-1605(00)00333-0
更新日期:2000-12-20 00:00:00
abstract::International, community and national food safety law and any subsequent decision-making practices aim to be based on risk analysis--a process consisting of risk assessment, risk management and risk communication. With the appointment of the European Food Safety Authority as an independent scientific point of referenc...
journal_title:International journal of food microbiology
pub_type: 杂志文章,评审
doi:10.1016/j.ijfoodmicro.2007.06.007
更新日期:2007-11-30 00:00:00
abstract::The genus Vibrio now includes a large number of species. Clear evidence is only available for the aetiological role of V. cholerae, V. vulnificus and V. parahaemolyticus in foodborne diseases. Until recently, V. cholerae serogroup 0:1 was accepted as the cause of epidemic cholera. However, the designation of outbreaks...
journal_title:International journal of food microbiology
pub_type: 杂志文章,评审
doi:10.1016/0168-1605(95)00015-c
更新日期:1995-06-01 00:00:00
abstract::The risk of resistance development to fludioxonil and the potential implications of resistance mutations to ochratoxin production in Aspergillus carbonarius were investigated. Mutants of A. carbonarius highly resistant to phenylpyrroles were isolated at a high mutation frequency after N-MNTG-mutagenesis and selection ...
journal_title:International journal of food microbiology
pub_type: 杂志文章
doi:10.1016/j.ijfoodmicro.2013.05.019
更新日期:2013-08-01 00:00:00