Abstract
Naturally contaminated lots of Canadian barley containing either 18.4 or 4.3 μg/g deoxynivalenol (DON) were heated at 80 °C, with small amounts of water or 1 M sodium carbonate solution to study the rate of DON reduction. Samples were heated in sealed polypropylene containers for periods of up to 8 days. In the 18.4 μg/g DON barley, rapid reductions were observed: with no solutions added, DON declined to 14.7 μg/g after 1 day, and to 4.9 μg/g after 8 days solely due to heat; with water at 10 mL/100 g barley, DON levels reached 3.7 μg/g after 8 days; with 1 M sodium carbonate solution added at 10 mL/100 g barley, DON declined to 4.7 μg/g after 1 day, and to 0.4 μg/g after 8 days; with 20 mL/100 g barley, DON declined to 1.4 μg/g after 1 day and to near-zero levels after 8 days. In the 4.3 μg/g DON barley, more gradual reductions were evident: with no solutions added, DON declined to 2.9 μg/g after 8 days solely due to heat; with water at 10 mL/100 g barley, DON levels reached 2.3 μg/g after 8 days; with 1 M sodium carbonate solution added at 10 mL/100 g barley, DON declined to 2.7 μg/g after 1 day, and to near-zero levels after 8 days; with 20 mL/100 g barley, DON declined to 1.4 μg/g after 1 day and to near-zero levels after 3, 5 and 8 days.
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Abramson, D., House, J.D. & Nyachoti, C.M. Reduction of Deoxynivalenol in Barley by Treatment with Aqueous Sodium Carbonate and Heat. Mycopathologia 160, 297–301 (2005). https://doi.org/10.1007/s11046-005-0087-1
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DOI: https://doi.org/10.1007/s11046-005-0087-1