Percorrer por autor "Roe, Mark"
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- EuroFIR Nexus - WP1 – Quality standards,certification and thesauri supportPublication . Calhau, Maria Antónia; Castanheira, Isabel; Becker, Wulf; Finglas, Paul; Roe, Mark; Columbani, Paolo; Moller, Anders; Ireland, Jayne; Bell, Simone; Unwin, IanPresentation to all project partners of the tasks and work progress of the workpackage since the begining
- EuroFIR Nexus WP1Publication . Calhau, Maria Antónia; Castanheira, Isabel; Becker, Wulf; Finglas, Paul; Roe, Mark; Columbani, Paolo; Moller, Anders; Ireland, Jayne; Bell, Simone; Unwin, IanPresentation of quality workpackage objectives, partners, timeschedule and tasks
- EuroFIR Nexus-WP1 – Quality standards, certification and thesauri supportPublication . Calhau, Maria Antónia; Castanheira, Isabel; Becker, Wulf; Finglas, Paul; Roe, Mark; Columbani, Paolo; Moller, Anders; Ireland, Jayne; Bell, Simone; Unwin, IanStatus and progress of quality workpackage
- EuroFIR quality approach for managing food composition data; where are we in 2014?Publication . Westenbrink, Susanne; Roe, Mark; Oseredczuk, Marine; Castanheira, Isabel; Finglas, PaulA EuroFIR quality management framework was developed to assure data quality of food composition data, incorporating several recommendations developed or improved during the EuroFIR projects. A flow chart of the compilation process with standard operating procedures to assure critical steps was the starting point. Recommendations for food description, component identification, value documentation, recipe calculation, quality evaluation of values, guidelines to assess analytical methods, document and data repositories and training opportunities were harmonized as elements of the quality framework. European food composition database organizations reached consensus on the EuroFIR quality framework and started implementation. Peer reviews of the European compiler organizations were organized to evaluate the quality framework, focusing on what was achieved and on improvements needed. The reviews demonstrated that European food database compilers have made good use of standards and guidelines produced by EuroFIR, as well as a common understanding that a quality framework is essential to assure food composition data quality.
- Experimental approaches for the estimation of uncertainty in analysis of trace inorganic contaminants in foodstuffs by ICP-MSPublication . Coelho, Inês; Gueifão, Sandra; Matos, Ana Sofia; Roe, Mark; Castanheira, IsabelTotal Diet Studies to estimate dietary exposure to food contaminants need to evaluate laboratory measurements data variance. In this process it is critical that data from analytical methods are reliable to correctly scrutinize and compare values over time and between countries. In Europe it is widely recognized that the evaluation of measurement uncertainty is an important parameter when assessing the sources of analytical data variability. Two approaches are considered to estimate uncertainty in analytical measurement. Arsenic, Lead, Chromium and Cadmium, content in several food matrix determined by Inductively Coupled Mass Spectrometry (ICP-MS) microwave digestion assisted, are used as examples. The aim of the present research work is to compare both approaches accepted by Eurolab and GUM: Mathematical modeling to assess uncertainty components based on a classical model (bottom up) and an empirical method (top down), based on either experimental data obtained from a single laboratory validation data or inter-laboratory data from Proficiency Testing schemes. Relative expanded uncertainty calculated by both approaches agree when U (%) <20%. These values are concordant with RSDR reported in collaborative studies of EN 15763 (2009), which were assumed as target uncertainty. The top down approach described is simple and easy to use when compared with the mathematical modeling approach providing considerable benefits to those who assess data produced by several laboratories.
- Methods to Express Dispersion of Results in Food Composition DataPublication . Castanheira, Isabel; Coelho, Inês; Gueifão, Sandra; Matos, Ana Sofia; Roe, Mark; Calhau, Maria Antónia; Finglas, PaulIn Europe one feature of National Food Composition Databanks (nFCDBs) is to provide data soundly supported in standardized quality assurance procedures. It is now widely recognized that the evaluation of the degree of dispersion associated with a result is an essential part of any quantitative analysis. According to recent requirements the concept of data quality incorporates the evaluation of the measurement uncertainty (MU) as an indicator of the reliability of the result. The aim of this work is to study the typification of approaches used to estimate measurement uncertainty in food composition analysis in compliance with the criteria established in the “Guide to the expression of uncertainty in measurement (GUM)”. The work addressed the approaches founded on the modelling of the measurement process as described in the GUM (chapter 8), and on the experimental approaches, typically precision and bias data, obtained from within-laboratory validation studies, quality controls, inter-laboratory method validation studies or proficiency testing schemes.
- Quality Management Framework for Total Diet Study centres in EuropePublication . Pité, Marina; Pinchen, Hannah; Castanheira, Isabel; Oliveira, Luisa; Roe, Mark; Ruprich, Jiri; Rehurkova, Irena; Sirot, Veronique; Papadopoulos, Alexandra; Gunnlaugsdóttir, Helga; Reykdal, Ólafur; Oliver, Lindtner; Ritvanen, Tiina; Finglas, P.A Quality Management Framework to improve quality and harmonization of Total Diet Study practices in Europe was developed within the TDS-Exposure Project. Seventeen processes were identified and hazards, Critical Control Points and associated preventive and corrective measures described. The Total Diet Study process was summarized in a flowchart divided into planning and practical (sample collection, preparation and analysis; risk assessment analysis and publication) phases. Standard Operating Procedures were developed and implemented in pilot studies in five organizations. The flowchart was used to develop a quality framework for Total Diet Studies that could be included in formal quality management systems. Pilot studies operated by four project partners were visited by project assessors who reviewed implementation of the proposed framework and identified areas that could be improved. The quality framework developed can be the starting point for any Total Diet Study centre and can be used within existing formal quality management approaches.
- Six Sigma scale as a quality criterion for aggregation of food property measuresPublication . Castanheira, Isabel; Matos, Ana Sofia; Coelho, Inês; Gueifão, Sandra; Roe, Mark; Calhau, Maria Antónia; Finglas, PaulThe EuroFIR (European Food Information Resource) quality management framework is a recent development to process standardization in data compilation for European Food Composition Data Banks. Data aggregation procedures taken from scientific literature as well as from analytical laboratory reports are still under discussion; however, the Six Sigma concept may be a useful approach, and therefore this work evaluates the concept. The Six Sigma approach was applied directly to analytical data taken from both laboratory reports and scientific literature. Sigma levels are calculated as indicators of laboratory test performance and the approach for data and laboratory selection is discussed. The results provide additional information on the quality of analytical data, allowing compilers and users to assess bias and imprecision for single and aggregate values. The Six Sigma approach is a complementary methodology to the quality methodologies already in use for data compilation processes and can be applied to further improve data quality.
- The EuroFIR Food Platform: Further integration, refinement and exploitation for its long-term self-sustainability - Final list of certified FCDB compiler organizations and future plans for continuation of the certification schemePublication . Roe, Mark; Finglas, Paul; Lindroos, Anna-Karin; Castanheira, Isabel; Giertlová, Anna; Westenbrink, Susanne; Beernaert, HedwigThe planned certification of food composition database (FCDB) Compiler organizations is a key part of the overall quality framework that was developed in EuroFIR NoE and further extended in Nexus (WP1). Task 1.2.2 requires assessment of up to a maximum 20 national FCDB Compiler organisations over 2 years and overall recommendations for continuation in the future. This report describes reviews of 16 FCDB Compiler organisations and summarises conclusions based on the reports. FCDB Compiler organisations have benefitted from the opportunity to review their data compilation processes and identify areas that could be improved and this information is important for their own organisation and management operations. The reviews have demonstrated the impact of EuroFIR developed guidelines for compilation processes and how FCDB Compilers have implemented quality management frameworks.
- The EuroFIR Food Platform: Further integration, refinement and exploitation for its long-term self-sustainability - Report on 1st year certification schemePublication . Roe, Mark; Finglas, Paul; Lindroos, Anna-Karin; Castanheira, Isabel; Giertlová, Anna; Westenbrink, Susanne; Bell, Simone; Beernaert, HedwigThe planned certification of food database FCDB Compiler organizations is a key part of the overall quality framework that was developed in EuroFIR NoE and further extended in Nexus (WP1). Task 1.2.2 requires assessment of up to a maximum 20 national Food Composition Database FCDB Compiler organisations during 2years and overall recommendations for continuation in the future. This report describes reviews of 10 FCDB Compiler organisations and summarises initial conclusions. FCDB Compiler organisations have benefitted from the opportunity to review their data compilation processes and identify areas that could be improved and this information is important for their own organisation and management operations. The reviews have demonstrated the impact of EuroFIR developed guidelines for compilation processes and how FCDB Compilers have implemented quality management frameworks.