Research Topics
| Koen GrijspeerdtSummaryAffiliation: Scientific Institute of Public Health Country: Belgium Publications
| Collaborators
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Detail Information
Publications
Detection of residues of the coccidiostat diclazuril in poultry tissues by liquid chromatography-tandem mass spectrometry after withdrawal of medicated feedLeen Mortier
Department of Animal Product Quality and Transformation Technology DVK, Agricultural Research Centre Ghent CLO, Ministry of the Flemish Community, Brusselsesteenweg 370, 9090 Melle, Belgium
J Agric Food Chem 53:905-11. 2005..Average steady-state concentrations of 94, 135, and 722 microg/kg in breast, thigh, and liver were obtained, respectively. Nine days after withdrawal of the medicated feed, diclazuril was still present in the different sample types...- Inactivation of Salmonella enteritidis during boiling of eggsKoen Grijspeerdt
Center of Agricultural Research, Department of Animal Product Quality, Ministry of Small Enterprises, Traders and Agriculture, Brusselsesteenweg 370, 9090 Melle, Belgium
Int J Food Microbiol 82:13-24. 2003..The statistical properties of the calibrated model are satisfactory, and a cross-validation shows that it can be used for egg boiling conditions outside its calibration range... - Practical application of dynamic temperature profiles to estimate the parameters of the square root modelKoen Grijspeerdt
Ministry of the Flemish Community, Centre of Agricultural Research, Department of Animal Product Quality, Brusselsesteenweg 370, 9090 Melle, Belgium
Int J Food Microbiol 101:83-92. 2005..cloacae. Therefore, a limited series of static experiments had to be conducted to obtain usable prior model parameters estimates. Only one dynamic experiment was then needed to achieve a good estimation... - Individual-based modelling of growth and migration of Salmonella enteritidis in hens' eggsK Grijspeerdt
Ministry of the Flemish Community, Centre of Agricultural Research Gent, Department of Animal Product Quality, Brusselsesteenweg 370, 9090 Melle, Belgium
Int J Food Microbiol 100:323-33. 2005..The simulation results illustrate the need for more detailed knowledge on the subject of bacterial migration in hens' eggs. Our model can easily incorporate this knowledge when it becomes available... - Eggshell penetration of various types of hens' eggs by Salmonella enterica serovar EnteritidisWiny Messens
Institute for Agricultural and Fisheries Research ILVO, Technology and Food Unit, Brusselsesteenweg 370, B 9090 Melle, Belgium
J Food Prot 70:623-8. 2007..Eggshell penetration was observed more frequently in the absence of cuticle spots and for eggs having lower dynamic stiffness values. Shell contamination at the end of storage was highly correlated with SE penetration... - Influence of eggshell condensation on eggshell penetration and whole egg contamination with Salmonella enterica serovar enteritidisKoen De Reu
Department of Animal Product Quality and Transformation Technology, Ministry of the Flemish Community, Agricultural Research Centre, Brusselsesteenweg 370, 9090 Melle, Belgium
J Food Prot 69:1539-45. 2006..Condensation on the eggshell seemed to encourage bacterial penetration of the eggshell but had a smaller impact on whole egg contamination... - Toxinogenic and spoilage potential of aerobic spore-formers isolated from raw milkValerie De Jonghe
Institute for Agricultural and Fisheries Research ILVO, Technology and Food Science Unit, Brusselsesteenweg 370, 9090 Melle, Belgium
Int J Food Microbiol 136:318-25. 2010..Moreover, we demonstrated that some strains are capable of growing at room temperature and staying stable at refrigeration temperatures... - Real-time reverse transcription PCR for the quantification of the mntH expression of Salmonella enterica as a function of growth phase and phagosome-like conditionsNadine Botteldoorn
Centre for Agricultural Research Ghent, Department for Animal Product Quality and Transformation Technology, Brusselsesteenweg 370, 9090 Melle, Belgium
J Microbiol Methods 66:125-35. 2006..A similar induction was obtained for Salmonella in porcine peripheral blood monocytes (PBM)... - Eggshell factors influencing eggshell penetration and whole egg contamination by different bacteria, including Salmonella enteritidisK De Reu
Department of Animal Product Quality and Transformation Technology, Agricultural Research Centre Ghent, Ministry of the Flemish Community, Brusselsesteenweg 370, 9090 Melle, Belgium
Int J Food Microbiol 112:253-60. 2006.... - Bacteriological contamination, dirt, and cracks of eggshells in furnished cages and noncage systems for laying hens: an international on-farm comparisonK De Reu
Institute for Agricultural and Fisheries Research ILVO, Technology and Food Science Unit, Brusselsesteenweg 370, 9090 Melle, Belgium
Poult Sci 88:2442-8. 2009..Although statistically significant, the average differences in bacteriological contamination of nest eggs between both housing systems have limited microbiological relevancy... - Bacterial shell contamination in the egg collection chains of different housing systems for laying hensK De Reu
Ministry of the Flemish Community, Agricultural Research Centre, Department of Animal Product Quality and Transformation Technology, Melle, Belgium
Br Poult Sci 47:163-72. 2006..Storing shell eggs, whether temporarily refrigerated or not, for 9 d or more, resulted in a decrease in bacterial eggshell contamination for both bacterial variables... - The effect of a commercial UV disinfection system on the bacterial load of shell eggsK De Reu
Department of Animal Product Quality and Transformation Technology, Ministry of the Flemish Community, Agricultural Research Centre, Melle, Belgium
Lett Appl Microbiol 42:144-8. 2006..To study the effect of UV irradiation on the bacterial load of shell eggs and of a roller conveyor belt... - Eggshell characteristics and penetration by Salmonella enterica serovar Enteritidis through the production period of a layer flockW Messens
Department of Animal Product Quality and Transformation Technology, Agricultural Research Centre Ghent Ministry of the Flemish Community, Melle, Belgium
Br Poult Sci 46:694-700. 2005..The growth of SE on the shell is of major importance because shell contamination at 20 d of storage and SE penetration were highly correlated... - Bacterial eggshell contamination in conventional cages, furnished cages and aviary housing systems for laying hensK De Reu
Ministry of the Flemish Community, Agricultural Research Centre, Department of Animal Product Quality and Transformation Technology, Melle, Belgium
Br Poult Sci 46:149-55. 2005..For the total count of aerobic bacteria a restricted positive correlation (r2 = 0.66) was found between the concentration of total bacteria in the air of the poultry houses and initial shell contamination... - Distribution and depletion of flubendazole and its metabolites in edible tissues of guinea fowlH De Ruyck
Department of Animal Product Quality and Transformation Technology DVK, Agricultural Research Centre Ghent CLO, Brusselsesteenweg 370, 9090 Melle, Belgium
Br Poult Sci 45:540-9. 2004..After this withdrawal period following treatment of the guinea fowl, the residues were approximately constant, very low and far below the established safe MRL level for other bird species... - Salmonella on pig carcasses: positive pigs and cross contamination in the slaughterhouseN Botteldoorn
Department for Animal Product Quality and Transformation Technology, Centre for Agricultural Research Ghent, Brusselsesteenweg, Melle, Belgium
J Appl Microbiol 95:891-903. 2003..The purpose of this study was to investigate the prevalence of Salmonella in pigs at the moment of slaughter and in the slaughterhouse environment... - Determination of flubendazole and its metabolites in eggs and poultry muscle with liquid chromatography-tandem mass spectrometryH De Ruyck
Agricultural Research Centre Ghent Ministry of Small Enterprises, Traders and Agriculture, Department of Animal Product Quality and Transformation Technology, Brusselsesteenweg 370, 9090 Melle, Belgium
J Agric Food Chem 49:610-7. 2001..6 and 54.1 microg kg(-1). The corresponding values with the higher dose of 29.6 mg kg(-1) were, respectively, 101.7 and 119.7 microg kg(-1)... - Routes for Campylobacter contamination of poultry meat: epidemiological study from hatchery to slaughterhouseL Herman
Agricultural Research Centre, Department of Animal Product Quality, Brusselsesteenweg 370, B-9090 Melle, Belgium
Epidemiol Infect 131:1169-80. 2003..Moreover, six negatively delivered flocks yielded positive carcasses, the result of a supplementary contamination, which occurred during transport and slaughtering... - Differential inlA and inlB expression and interaction with human intestinal and liver cells by Listeria monocytogenes strains of different originsHadewig Werbrouck
Institute for Agricultural and Fisheries Research, Unit Technology and Food Product Quality and Food Safety, Brusselsesteenweg 370, 9090 Melle, Belgium
Appl Environ Microbiol 72:3862-71. 2006..monocytogenes strains. The lower capacity of clinical strains to invade HepG2 cells and to induce IL-8 is possibly a mechanism of immune evasion used by specific L. monocytogenes strains... - Economics of reducing Campylobacter at different levels within the Belgian poultry meat chainXavier Gellynck
Department Agricultural Economics Agecon, Ghent University, Coupure Links 653, 9000 Ghent, Belgium
J Food Prot 71:479-85. 2008..The cost to reach consumers is large, while only a very limited fraction of the consumers is willing to change its behavior. The outcome of this study poses valuable information for future risk-management decisions in Belgium... - Human salmonellosis: estimation of dose-illness from outbreak dataKaatje Bollaerts
Center for Statistics, Hasselt University, Belgium
Risk Anal 28:427-40. 2008..Furthermore, the analyses suggest that immunity exists in the normal population but not in the susceptible population...