AOAC ISPAM Stakeholder Panel Meeting Book 9-24-17

Characterizing the Contaminant Grains ƒ Grind each cultivar independently, then weigh together appropriate masses of flour to make the spiking blend. ƒ After the composite blend is made, it will need to be tested for gluten content. ƒ The gluten estimate of the spiked material will be necessary to calculate recovery. ƒ We have several ideas on how to do this. BUT, ƒ We hesitate to refer to any method used at this step at the moment as a “REFERENCE” method but leave this decision to the Working Group for recommendation of a method or series of methods to do this type of characterization. ƒ We don’t want to establish a precedent on the ideal or reference method, but would only use the method as a way of calculating recovery. Spiking Materials for Barley and Rye ƒ Our goal was to select the barley and rye cultivars common to the oat growing regions of Canada and the United States most likely to contaminate oats. Using data for planting acres from ƒ the Saskatchewan Ministry of Agriculture, ƒ the Manitoba Agricultural services Corporation, and ƒ the USDAAgricultural Statistics Service, ƒ Samples were obtained from the breeding programs ƒ at North Dakota State University with the help of Dr. Richard Horsley, Department Head of the Department of Plant Sciences and ƒ Steve Zwinger, Research Specialist at the Carrington Research Extension Center.