Washing procedures using water or sodium carbonate solutions for the decontamination of three cereals contaminated with deoxynivalenol and zearalenone
Trenholm, H.L. | Charmley, L.L. | Prelusky, D.B. | Warner, R.M.
Washing techniques for decontaminating deoxynivalenol (DON)- and zearalenone (ZEN)-contaminated grains were developed. Washing barley and corn three times in distilled water reduced DON concentrations by 65-69% and ZEN by 2-61%. Using 1 M sodium carbonate solution for the first wash reduced DON by 72-74% and ZEN by 80-87%. Stirring barley gently in a 1 M sodium carbonate solution for 4 h caused an increase in the toxin concentration of the solution, to 33 and 95% of the DON and ZEN, respectively, originally in the barley. Stirring barley vigorously for 2 h in a 1 M sodium carbonate solution and then in distilled water caused a 67-89% reduction in toxin concentration. Stirring gently for 4 h in each solution caused an 80-95% reduction. Soaking barley, corn, and wheat in a 0.1 M sodium carbonate solution for 24 or 72 h caused a 42-100% reduction in toxin concentration.
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