Aflatoxin Sampling and Testing Proficiency in the Texas Grain Industry
DOI:
https://doi.org/10.21423/JRS.REGSCI.2112Keywords:
Aflatoxin, Risk management, Proficiency test, variability, sampling, analysisAbstract
Aflatoxin is a group I carcinogen and represents a significant public health and food safety risk throughout the world. Aflatoxin contaminated cereals and oilseeds that contain greater than 20 μg/kg of the toxin (B1, B2, G1, G2) are defined as adulterated by the Texas Commercial Feed Rules and are regulated by the Texas Feed and Fertilizer Control Service. This study was performed to assess sampling and testing of maize for aflatoxin contamination. During 2010, 87 Texas grain elevators’ sampling procedures were assessed and a second investigation documented aflatoxin analysis procedures at 41 grain elevator establishments. The average sample size was 1.8 kg (4 pounds) and fewer than 20% of the grain elevators collected samples using an official (prescribed) sampling pattern by the grain inspection, crop insurance or regulatory authorities within the United States. Proficiency samples were analyzed by 39 cooperating grain elevators and 7 firms accurately analyzed samples containing greater than 300 μg/kg aflatoxin. While sampling contributes to variability in measuring aflatoxin in grain, this study highlights that aflatoxin analysis using commercially available test kits is a major contributor to variation in aflatoxin test results among commercial grain handlers.References
AOAC (Association of Official Analytical Chemists). (2005). Aflatoxins in corn, raw peanuts and peanut butter, liquid chromatography with post-column photochemical derivatization. Official method 2005.08, 49.2.18A
Council for Agricultural Science and Technology (CAST). (2003). Mycotoxins and human disease In: Mycotoxins: Risks in Plant, Animal, and Human Systems. Report No. 139. Council for Agricultural Science and Technology. Ames, IA, USA.
Dai, S.Y., Lee, K.M., Li, W., Balthrop, J., & Herrman, T.J. (2013). Aflatoxin risk management in Texas: test kit approval for maize. International Journal of Regulatory Science, 1, 15–22.
Food and Drug Administration (FDA). (1994). Action levels for aflatoxin in animal feeds. Compliance Policy Guide 683.100.
Grain Inspection Packers and Stockyards Administration (GIPSA). (2002). Aflatoxin Handbook. United States Department of Agriculture Grain Inspection, Packers and Stockyards Administration Federal Grain Inspection Service. Washington, DC
Herrman, T.J. (2010). White paper on Aflatoxin risk management in Texas, pursuit of a one sample strategy. Office of the Texas State Chemist, Advisory Committee Meeting, Nov. 4, 2010 Amarillo, TX.
Herrman, T.J., Lee, K.M., Jones, B., & Haggart, D. (2013). Variance structure of aflatoxin contaminated maize in commercial grain elevators and transporters. International Journal of Regulatory Science, 1, 23-31.
International Agency for Research on Cancer (IARC). (2002). Aflatoxin. IARC Monograph Volume 82 (2002). Available at http://www.iarc.fr/ Accessed 7.23.2014.
Johansson, A.S., Whitaker, T.B., Hagler, W.M., Jr., Giesbrecht, F.G., Young, J.H., & Bowman, D. T. (2000). Testing shelled corn for aflatoxin, Part I: Estimation of variance component. Journal of AOAC International, 83, 51–59.
Jouany, J.P., & Diaz, D.E. (2005). Effects of mycotoxins in ruminants. In: The Mycotoxin Blue Book. Nottingham University Press. U.K.
Risk Management Agency (RMA). (2011). Loss Adjustment Manual (LAM) standards handbook. Risk Management Agency/ U.S. Department of Agriculture. Available at. http://www.rma.usda.gov/handbooks/25000/2011/11_25010.pdf Accessed 7.23.2014
Risk Management Agency. (2013). A risk management agency fact sheet about the risk management agency. Program Aid 1667-02. United States Department of Agriculture. Washington D.C.
Texas Administrative Code (TAC). (2011). Commercial Feed Rules. Texas Administrative Code Title 4. Agriculture Chapter 61.65.
Whitaker, T.B., Horwitz, W., Albert, R., Nesheim, S. (1996). Variability associated with analytical methods used to measure aflatoxin in agricultural commodities. Journal of AOAC International, 79, 476–485.
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