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The certification of the aflatoxin mass fractions in peanut butter
in World Mycotoxin JournalSearch for other papers by G. Buttinger in
Current site
Google Scholar
Search for other papers by S. Harbeck in
Current site
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Search for other papers by R. Josephs in
Current site
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In the context of control activities contamination of food and feed with aflatoxins is a frequently observed non compliance. Pistachios, peanuts and products thereof are particularly affected. The Institute for Reference Materials and Measurements has therefore produced a peanut butter material certified for its aflatoxin mass fractions. This certified reference material (CRM) allows for the evaluation of analytical method performance and the assessment of the comparability of results from different laboratories. The CRM was produced using naturally contaminated raw materials to ensure equivalent behaviour compared to samples routinely encountered. The homogeneity and stability of the CRM were thoroughly tested and certified values were determined in an inter-laboratory study. Furthermore, uncertainties of the certified values were assessed including contributions of the homogeneity, stability and certification studies to the combined uncertainty. This newly prepared CRM allows an assessment of trueness of the analytical method at a concentration level corresponding to the legal limits enforced in the European Union. The material has the following certified properties: aflatoxin B1 1.77±0.29 µg/kg, aflatoxin B2 0.48±0.07 µg/kg, aflatoxin G1 0.9±0.4 µg/kg, aflatoxin G2 0.31±0.12 µg/kg and total aflatoxins, as sum of aflatoxins B1, B2, G1 and G2, 3.5±0.5 µg/kg.
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European Commission (EC), 2006a. The Rapid Alert System for Food and Feed (RASFF) Annual Report 2005. Office for Official Publications of the European Communities, Luxembourg, Luxembourg.
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European Commission (EC), 2006c. Commission Regulation (EC) No 401/2006 of 23 February 2006 laying down the methods of sampling and analysis for official control of the levels of mycotoxins in foodstuffs. Official Journal of the European Union L70: 12.
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Food and Agricultural Organisation of the United Nations (FAO), 2004. Worldwide regulations for mycotoxins in food and feed in 2003. FAO Food and Nutrition Paper 81. FAO, Rome, Italy.
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Gilbert, J., Wagstaffe, P.J. and Boenke, A., 1991. The certification of aflatoxins B1, B2, G1, G2 and total aflatoxins content of two peanut-butter reference materials CRM 385, 401. Office for Official Publications of the European Communities, Luxembourg, Luxembourg.
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International Organisation for Standardisation (ISO), 2006. Guide 35 Reference Materials – General and statistical principles for certification. ISO, Geneva, Switzerland.
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Lamberty, A., Schimmel, H. and Pauwels, J., 1998. The study of the stability of reference materials by isochronous measurements. Fresenius Journal of Analytical Chemistry 360: 359-361.
'The study of the stability of reference materials by isochronous measurements ' () 360 Fresenius Journal of Analytical Chemistry : 359 -361 .
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Linsinger, T.P.J., Pauwels, J., Lambery, A., Schimmel, H.G., Van der Veen, A.M.H. and Siekmann, L. 2001b. Estimating the uncertainty of stability for matrix CRMs. Fresenius Journal of Analytical Chemistry 370: 183-188.
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Linsinger, T.P.J., Pauwels, J., Van der Veen, A.M.H., Schimmel, H. and Lambery, A., 2001a. Uncertainty calculations in the certification of reference materials. 2. Homogeneity study. Accreditation and Quality Assurance 6: 26-30.
'Uncertainty calculations in the certification of reference materials. 2. Homogeneity study ' () 6 Accreditation and Quality Assurance : 26 -30 .
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Linsinger, T.P.J., Van der Veen, A.M.H., Gawlik, B.M., Pauwels, J. and Lambery, A., 2004. Planning and combining of isochronous stability studies of CRMs. Accreditation and Quality Assurance 9: 464-472.
'Planning and combining of isochronous stability studies of CRMs ' () 9 Accreditation and Quality Assurance : 464 -472 .
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Van der Veen, A.M.H., Linsinger, T.P.J, Lamberty, A. and Pauwels, J., 2001. Uncertainty calculations in the certification of reference materials. 3. Stability study. Accreditation and Quality Assurance 6: 257-263.
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| Insgesamt | Letzte 365 Tage | In den letzten 30 Tagen | |
|---|---|---|---|
| Aufrufe von Kurzbeschreibungen | 485 | 409 | 24 |
| Gesamttextansichten | 8 | 0 | 0 |
| PDF-Downloads | 4 | 0 | 0 |
The certification of the aflatoxin mass fractions in peanut butter
in World Mycotoxin JournalSearch for other papers by G. Buttinger in
Current site
Google Scholar
PubMed
Search for other papers by S. Harbeck in
Current site
Google Scholar
PubMed
Search for other papers by R. Josephs in
Current site
Google Scholar
PubMed
In the context of control activities contamination of food and feed with aflatoxins is a frequently observed non compliance. Pistachios, peanuts and products thereof are particularly affected. The Institute for Reference Materials and Measurements has therefore produced a peanut butter material certified for its aflatoxin mass fractions. This certified reference material (CRM) allows for the evaluation of analytical method performance and the assessment of the comparability of results from different laboratories. The CRM was produced using naturally contaminated raw materials to ensure equivalent behaviour compared to samples routinely encountered. The homogeneity and stability of the CRM were thoroughly tested and certified values were determined in an inter-laboratory study. Furthermore, uncertainties of the certified values were assessed including contributions of the homogeneity, stability and certification studies to the combined uncertainty. This newly prepared CRM allows an assessment of trueness of the analytical method at a concentration level corresponding to the legal limits enforced in the European Union. The material has the following certified properties: aflatoxin B1 1.77±0.29 µg/kg, aflatoxin B2 0.48±0.07 µg/kg, aflatoxin G1 0.9±0.4 µg/kg, aflatoxin G2 0.31±0.12 µg/kg and total aflatoxins, as sum of aflatoxins B1, B2, G1 and G2, 3.5±0.5 µg/kg.
| Insgesamt | Letzte 365 Tage | In den letzten 30 Tagen | |
|---|---|---|---|
| Aufrufe von Kurzbeschreibungen | 485 | 409 | 24 |
| Gesamttextansichten | 8 | 0 | 0 |
| PDF-Downloads | 4 | 0 | 0 |
