The Experts below are selected from a list of 99321 Experts worldwide ranked by ideXlab platform
Mieke Uyttendaele - One of the best experts on this subject based on the ideXlab platform.
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Evaluation of the food Safety Management System in a hospital food service operation toward Listeria monocytogenes
Food Control, 2015Co-Authors: Evy Lahou, Liesbeth Jacxsens, Ellen Verbunt, Mieke UyttendaeleAbstract:Abstract The unique aspects of a hospital environment, such as the multitude of dietary needs and thus the variety of meals to be served and incoming (raw) materials to be used, challenge the development and application of appropriate control and assurance measures to guarantee food Safety. Besides, Listeria monocytogenes is considered a risk for most food service operations producing and serving ready-to-eat foods. Therefore the food Safety Management System of a hospital food service operation has been evaluated toward L. monocytogenes with an extensive questionnaire in the preset of this case study. In addition, 49 samples of food products and 145 environmental samples were taken and analyzed for L. monocytogenes to verify the implemented control measures. From this case study, it becomes clear that incoming (raw) materials, produced final products and their immediate supply to patients/consumers are high risk situations. This was demonstrated by the presence of L. monocytogenes in six incoming (raw) materials ( n = 19) and one final product ( n = 9). These risky situations are in need to be mitigated by the implementation of proper control measures, e.g. intensified supplier control, low storage temperatures, cleaning and disinfection to control cross-contamination. However major improvements can be made on the hygienic design of equipment and facilities and on the level of the sampling design. In terms of assurance activities, such as setting up a sampling plan, only a basic level was obtained for the validation and verification of their food Safety Management System. This case study illustrates that the combination of data from the questionnaire together with data of the sampling result in an overview on the performance of the current food Safety Management System and that major non-compliances and possibilities for improvement in the System can be defined.
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the evaluation of the food Safety Management System of a hospital food service operation towards l monocytogenes
Food Safety Management Abstracts, 2012Co-Authors: Evy Lahou, Liesbeth Jacxsens, Mieke UyttendaeleAbstract:Introduction : During the last 15-20 years there has been an increasing concern world-wide about L. monocytogenes and its implications for food Safety. Listeriosis is lately associated with elderly people and those persons who are immune-compromised by medications or illness such as frequently encountered in hospital settings. Consequently, the occurrence, spread, growth and survival of L. monocytogenes in foods and the food environment of hospital food service operations has to be carefully controlled. Materials and methods : The context, performance and food Safety output of the current food Safety Management System (FSMS) in place in a hospital food service operation was evaluated, in particular with respect to L. monocytogenes, according a Diagnostic Instrument (Jacxsens et al., 2011). The diagnostic instrument consists of comprehensive lists of indicators to analyse which core control (e.g. cleaning and disinfection, cold chain) and core assurance activities (e.g. sampling plan, audits) are addressed in the company specific FSMS, which context factors could affect the FSMS and to analyse the microbiological Safety performance of the FSMS. In addition on 3 separate occasions, sampling for L. monocytogenes in the food service operation was performed (including environmental swab samples and product samples). Results and discussion : During sampling L. monocytogenes was absent in all (n= 145) environmental samples and detected in 7/49 product samples namely in cooked, salt-free ham, raw meat sandwich spread, smoked salmon, raw salmon (two times) and raw chicken meat. According the Diagnostic Instrument the food service operation (FSO) is operating in an medium risk context. The hypothesis of the diagnostic instrument for a FSO with a medium risk context is that an average FSMS should be sufficient to cover the risk of L. monocytogenes. However, according to this diagnosis tool in the FSO only a moderate food Safety output is reached. This is due the lack of assurance activities such as a sampling plan to control L. monocytogenes in the FSO and the validation and verification of the production process. Conclusion : The evaluation of the FSMS according a diagnostic instrument can be used to identify the weak points of the FSMS and to adjust its FSMS to improve food Safety output. In addition the awareness on the issue of L. monocytogenes (which was overall quite low in the food service operation) was raised because of this internal validation study of the FSMS using the diagnostic instrument and sampling. References JACXSENS L., LUNING PA., MARCELIS WJ., VAN BOEKEL T., ROVIRA J., OSES S., KOUSTA M., DROSINOS E., JASSON V. & UYTTENDAELE M. (2011) Tools for the performance assessment and improvement of food Safety Management Systems. Trends in food science & technology. 22: 80-89.
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a concurrent diagnosis of microbiological food Safety output and food Safety Management System performance cases from meat processing industries
Food Control, 2011Co-Authors: P A Luning, Mieke Uyttendaele, Liesbeth Jacxsens, Jordi Rovira, Sandra M Oses, Willem J MarcelisAbstract:Stakeholder requirements force companies to analyse their food Safety Management System (FSMS) performance to improve food Safety. Performance is commonly analysed by checking compliance against preset requirements via audits/inspections, or actual food Safety (FS) output is analysed by microbiological testing. This paper discusses the usefulness of a concurrent diagnosis of FSMS performance and FS output using new tools; illustrated for three meat-processing companies. Listeria monocytogenes, Salmonella spp., Campylobacter spp. (food Safety indicators), Escherichia coli, Enterobacteriaceae (hygiene indicators), and total viable counts TVC (overall performance) were analysed at ten critical sampling locations covering both product and environmental samples, using the Microbial Assessment Scheme diagnosis. Riskiness of FSMS context and performance of core FSMS activities were assessed using a diagnostic tool (including 51 indicators and corresponding grids with level descriptions). For the (large) beef meat processor, the FS output diagnosis showed too high TVC but the high activity scores of their FSMS indicated that this problem could be only solved by supplier measures. Likewise, for the (medium-size) poultry meat processor, the activity/context diagnosis showed a clear dependency on suppliers. However, the FS output diagnosis revealed a broader contamination problem, and additional measures to improve, amongst others, sanitation program, compliance to procedures, personal hygienic requirements seem necessary. The FS output diagnosis of the (small) lamb meat processor showed various contamination problems (but no pathogens) corresponding with various low activity levels in combination with he high-risk context. The combined diagnosis provided clear directions for improvement to move towards more advanced FSMS activity levels or to reduce riskiness in context.
Filippone Edoardo - One of the best experts on this subject based on the ideXlab platform.
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risk analysis of the future implementation of a Safety Management System for multiple rpas based on first demonstration flights
Electronics, 2017Co-Authors: Francesco Grimaccia, Federica Onfante, Manuela Attipede, Paolo Maggiore, Filippone EdoardoAbstract:The modern aeronautical scenario has welcomed the massive diffusion of new key elements, including the Remote Piloted Aircraft Systems (RPAS), initially used for military purposes only. The current decade has seen RPAS ready to become a new airspace user in a large variety of civilian applications. Although RPAS can currently only be flown into segregated airspaces, due to national and international Flight Aviation Authorities′ (FAAs) constraints, they represent a remarkable potential growth in terms of development and economic investments for aviation. Full RPAS development will only happen when flight into non-segregated airspaces is authorized, as for manned civil and military aircraft. The preliminary requirement for disclosing the airspace to RPAS is the implementation of an ad hoc Safety Management System (SMS), as prescribed by ICAO, for every aeronautical operator. This issue arises in the context of the ongoing restructuring of airspaces Management, according to SESAR-JU in Europe and NextGen in the USA (SESAR-JU has defined how RPAS research should be conducted in SESAR 2020, all in accordance with the 2015 European ATM Master Plan). This paper provides the basis to implement a risk model and general procedures/methodologies to investigate RPAS Safety, according to the operational scenarios defined by EASA (European Aviation Safety Agency). The study is based on results achieved by multiple-RPAS experimental flights, performed within the RAID (RPAS-ATM Integration Demonstration) project.
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Risk analysis of the future implementation of a Safety Management System for multiple RPAS based on first demonstration flights
'MDPI AG', 2017Co-Authors: Grimaccia Francesco, Bonfante Federica, Battipede Manuela, Maggiore Paolo, Filippone EdoardoAbstract:The modern aeronautical scenario has welcomed the massive diffusion of new key elements, including the Remote Piloted Aircraft Systems (RPAS), initially used for military purposes only. The current decade has seen RPAS ready to become a new airspace user in a large variety of civilian applications. Although RPAS can currently only be flown into segregated airspaces, due to national and international Flight Aviation Authority (FAAs) constraints, they represent a remarkable potential growth in terms of development and economic investments for aviation. Full RPAS development will only happen when flight into non-segregated airspaces is authorized, as for manned civil and military aircraft. The preliminary requirement for disclosing the airspace to RPAS is the implementation of an ad hoc Safety Management System (SMS), as prescribed by ICAO, for every aeronautical operator. This issue arises in the context of the ongoing restructuring of airspaces Management, according to SESAR-JU in Europe and NextGen in the USA (SESAR-JU has defined how RPAS research should be conducted in SESAR 2020, all in accordance with the 2015 European ATM Master Plan). This paper provides the basis to implement a risk model and general procedures/methodologies to investigate RPAS Safety, according to the operational scenarios defined by EASA (European Aviation Safety Agency). The study is based on results achieved by multiple-RPAS experimental flights, performed within the RAID (RPAS-ATM Integration Demonstration) project
Liesbeth Jacxsens - One of the best experts on this subject based on the ideXlab platform.
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Evaluation of the food Safety Management System in a hospital food service operation toward Listeria monocytogenes
Food Control, 2015Co-Authors: Evy Lahou, Liesbeth Jacxsens, Ellen Verbunt, Mieke UyttendaeleAbstract:Abstract The unique aspects of a hospital environment, such as the multitude of dietary needs and thus the variety of meals to be served and incoming (raw) materials to be used, challenge the development and application of appropriate control and assurance measures to guarantee food Safety. Besides, Listeria monocytogenes is considered a risk for most food service operations producing and serving ready-to-eat foods. Therefore the food Safety Management System of a hospital food service operation has been evaluated toward L. monocytogenes with an extensive questionnaire in the preset of this case study. In addition, 49 samples of food products and 145 environmental samples were taken and analyzed for L. monocytogenes to verify the implemented control measures. From this case study, it becomes clear that incoming (raw) materials, produced final products and their immediate supply to patients/consumers are high risk situations. This was demonstrated by the presence of L. monocytogenes in six incoming (raw) materials ( n = 19) and one final product ( n = 9). These risky situations are in need to be mitigated by the implementation of proper control measures, e.g. intensified supplier control, low storage temperatures, cleaning and disinfection to control cross-contamination. However major improvements can be made on the hygienic design of equipment and facilities and on the level of the sampling design. In terms of assurance activities, such as setting up a sampling plan, only a basic level was obtained for the validation and verification of their food Safety Management System. This case study illustrates that the combination of data from the questionnaire together with data of the sampling result in an overview on the performance of the current food Safety Management System and that major non-compliances and possibilities for improvement in the System can be defined.
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the evaluation of the food Safety Management System of a hospital food service operation towards l monocytogenes
Food Safety Management Abstracts, 2012Co-Authors: Evy Lahou, Liesbeth Jacxsens, Mieke UyttendaeleAbstract:Introduction : During the last 15-20 years there has been an increasing concern world-wide about L. monocytogenes and its implications for food Safety. Listeriosis is lately associated with elderly people and those persons who are immune-compromised by medications or illness such as frequently encountered in hospital settings. Consequently, the occurrence, spread, growth and survival of L. monocytogenes in foods and the food environment of hospital food service operations has to be carefully controlled. Materials and methods : The context, performance and food Safety output of the current food Safety Management System (FSMS) in place in a hospital food service operation was evaluated, in particular with respect to L. monocytogenes, according a Diagnostic Instrument (Jacxsens et al., 2011). The diagnostic instrument consists of comprehensive lists of indicators to analyse which core control (e.g. cleaning and disinfection, cold chain) and core assurance activities (e.g. sampling plan, audits) are addressed in the company specific FSMS, which context factors could affect the FSMS and to analyse the microbiological Safety performance of the FSMS. In addition on 3 separate occasions, sampling for L. monocytogenes in the food service operation was performed (including environmental swab samples and product samples). Results and discussion : During sampling L. monocytogenes was absent in all (n= 145) environmental samples and detected in 7/49 product samples namely in cooked, salt-free ham, raw meat sandwich spread, smoked salmon, raw salmon (two times) and raw chicken meat. According the Diagnostic Instrument the food service operation (FSO) is operating in an medium risk context. The hypothesis of the diagnostic instrument for a FSO with a medium risk context is that an average FSMS should be sufficient to cover the risk of L. monocytogenes. However, according to this diagnosis tool in the FSO only a moderate food Safety output is reached. This is due the lack of assurance activities such as a sampling plan to control L. monocytogenes in the FSO and the validation and verification of the production process. Conclusion : The evaluation of the FSMS according a diagnostic instrument can be used to identify the weak points of the FSMS and to adjust its FSMS to improve food Safety output. In addition the awareness on the issue of L. monocytogenes (which was overall quite low in the food service operation) was raised because of this internal validation study of the FSMS using the diagnostic instrument and sampling. References JACXSENS L., LUNING PA., MARCELIS WJ., VAN BOEKEL T., ROVIRA J., OSES S., KOUSTA M., DROSINOS E., JASSON V. & UYTTENDAELE M. (2011) Tools for the performance assessment and improvement of food Safety Management Systems. Trends in food science & technology. 22: 80-89.
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a concurrent diagnosis of microbiological food Safety output and food Safety Management System performance cases from meat processing industries
Food Control, 2011Co-Authors: P A Luning, Mieke Uyttendaele, Liesbeth Jacxsens, Jordi Rovira, Sandra M Oses, Willem J MarcelisAbstract:Stakeholder requirements force companies to analyse their food Safety Management System (FSMS) performance to improve food Safety. Performance is commonly analysed by checking compliance against preset requirements via audits/inspections, or actual food Safety (FS) output is analysed by microbiological testing. This paper discusses the usefulness of a concurrent diagnosis of FSMS performance and FS output using new tools; illustrated for three meat-processing companies. Listeria monocytogenes, Salmonella spp., Campylobacter spp. (food Safety indicators), Escherichia coli, Enterobacteriaceae (hygiene indicators), and total viable counts TVC (overall performance) were analysed at ten critical sampling locations covering both product and environmental samples, using the Microbial Assessment Scheme diagnosis. Riskiness of FSMS context and performance of core FSMS activities were assessed using a diagnostic tool (including 51 indicators and corresponding grids with level descriptions). For the (large) beef meat processor, the FS output diagnosis showed too high TVC but the high activity scores of their FSMS indicated that this problem could be only solved by supplier measures. Likewise, for the (medium-size) poultry meat processor, the activity/context diagnosis showed a clear dependency on suppliers. However, the FS output diagnosis revealed a broader contamination problem, and additional measures to improve, amongst others, sanitation program, compliance to procedures, personal hygienic requirements seem necessary. The FS output diagnosis of the (small) lamb meat processor showed various contamination problems (but no pathogens) corresponding with various low activity levels in combination with he high-risk context. The combined diagnosis provided clear directions for improvement to move towards more advanced FSMS activity levels or to reduce riskiness in context.
Jingdong Zhang - One of the best experts on this subject based on the ideXlab platform.
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comprehensive evaluation on employee satisfaction of mine occupational health and Safety Management System based on improved ahp and 2 tuple linguistic information
Sustainability, 2017Co-Authors: Jiangdong Bao, Jan Johansson, Jingdong ZhangAbstract:In order to comprehensively evaluate the employee satisfaction of mine occupational health and Safety Management System, an analytic method based on fuzzy analytic hierarchy process and 2-tuple linguistic model was established. Based on the establishment of 5 first-grade indicators and 20 second-grade ones, method of improved AHP and the time-ordered Weighted Averaging Operator (T-OWA) model is constructed. The results demonstrate that the employee satisfaction of the mine occupational health and Safety Management System is of the ‘general’ rank. The method including the evaluation of employee satisfaction and the quantitative analysis of language evaluation information ensures the authenticity of the language evaluation information.
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an occupational disease assessment of the mining industry s occupational health and Safety Management System based on fmea and an improved ahp model
Sustainability, 2017Co-Authors: Jiangdong Bao, Jan Johansson, Jingdong ZhangAbstract:In order to effectively analyze, control, and prevent occupational health risk and ensure the reliability of the weight, a method based on FMEA (failure mode and effects analysis) and an improved AHP (analytic hierarchy process) model was established. The occupational disease of the occupational health and Safety Management System (OHSAS18001) of the mining industry in the southwest of Hubei Province is taken as an example, the three most significant risk factors (dust, noise, and gas) are selected as the research objects, the FMEA method is used, an expert questionnaire is carried out to establish the comprehensive assessment matrix of each indicator according to the RPN (risk priority number) value, and, finally, a case study is conducted through the FMEA and the improved AHP model The results show that the occupational disease of the mining industry’s occupational health and Safety Management System belongs to a “general” grade, which is in line with the physical examination results of the Center for Disease Control and Prevention of Ezhou City in 2015. The improved AHP and FMEA comprehensive assessment model of occupational disease is proved feasible. This method can be incorporated in the process Management of the enterprise for the purpose of occupational disease prevention in advance and continuous improvement on the occupational health and Safety of employees. Additionally, the area research on this integrated model should be optimized continually in actual situations.
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An Occupational Disease Assessment of the Mining Industry’s Occupational Health and Safety Management System Based on FMEA and an Improved AHP Model
MDPI AG, 2017Co-Authors: Jiangdong Bao, Jan Johansson, Jingdong ZhangAbstract:In order to effectively analyze, control, and prevent occupational health risk and ensure the reliability of the weight, a method based on FMEA (failure mode and effects analysis) and an improved AHP (analytic hierarchy process) model was established. The occupational disease of the occupational health and Safety Management System (OHSAS18001) of the mining industry in the southwest of Hubei Province is taken as an example, the three most significant risk factors (dust, noise, and gas) are selected as the research objects, the FMEA method is used, an expert questionnaire is carried out to establish the comprehensive assessment matrix of each indicator according to the RPN (risk priority number) value, and, finally, a case study is conducted through the FMEA and the improved AHP model The results show that the occupational disease of the mining industry’s occupational health and Safety Management System belongs to a “general” grade, which is in line with the physical examination results of the Center for Disease Control and Prevention of Ezhou City in 2015. The improved AHP and FMEA comprehensive assessment model of occupational disease is proved feasible. This method can be incorporated in the process Management of the enterprise for the purpose of occupational disease prevention in advance and continuous improvement on the occupational health and Safety of employees. Additionally, the area research on this integrated model should be optimized continually in actual situations
Abimbola Adegboye - One of the best experts on this subject based on the ideXlab platform.
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Application of the moving window approach in the verification of the performance of food Safety Management Systems
Food Control, 2015Co-Authors: Claus Heggum, Jorge J. Guerrero Vallejos, O.b. Njie, Abimbola AdegboyeAbstract:Abstract In a food business, microbiological testing is one of several methods of verifying the performance and acceptability of the entire food Safety Management System. Demonstrating compliance with microbiological criteria applicable for end products through the moving window approach is a practical and cost-effective approach for well-managed food Safety Management Systems based on Hazard Analysis and Critical Control Points (HACCP). This article discusses the moving window s approach and provides an example of how the approach can be used by a food business operator to verify compliance over time with a microbiological criterion applicable to end products manufactured within a HACCP-based food Safety Management System. The approach consists of sampling a defined number of analytical units at a specified frequency over a defined time period. Compliance with the microbiological criteria is demonstrated when (i) the specified absolute maximum level of acceptability ( M ) is not exceeded in any sample and (ii) any specified maximum frequency ( c ) of all samples taken during the specified period ( window ) do not exceed a marginally acceptable level ( m ). Corrective action is triggered by exceeding either c or M , which, depending on the type of organism, includes action on the operation or design of the food Safety Management System and may include actions on affected lots such as withdrawal/recall.
