High-Speed Optical Sorting of Soft Wheat for Reduction of Deoxynivalenol

Plant Disease
Stephen R DelwicheDaniel L Brabec

Abstract

Fusarium head blight (FHB) is a fungal disease that affects small cereal grains, such as wheat and barley, and is becoming more prevalent throughout much of the world's temperate climates. The disease poses a health risk to humans and livestock because of the associated production of the mycotoxin deoxynivalenol (DON or vomitoxin) by the causal organism, Fusarium graminearum. A study was undertaken to examine the efficiency of high-speed, optical sorting of intact wheat (Triticum aestivum) kernels for reduction of DON concentration. Soft red winter (n = 32) and soft white (n = 3) wheat samples, known to have elevated levels of FHB, were obtained from commercial mills throughout the eastern United States. An additional seven samples of wheat from the discard piles of in-mill cleaners were also studied. Fusarium-damaged wheat, cleaned of nonkernels and foreign material ( ~4.5 kg/sample, DON range = 0.6 to 20 mg/kg), was fed into a commercial high-speed bichromatic sorter operating at a throughput of 0.33 kg/(channel-min) and a kernel rejection rate of 10%. A wavelength filter pair combination of 675 and 1,480 nm was selected for sorting, based on prior research. Visual measurements of the proportion of Fusarium-damaged kernels we...Continue Reading

References

Jun 1, 1985·Australian Veterinary Journal·B L Radunz, A W Lepper
May 1, 1996·Journal of Toxicology and Environmental Health·B A RotterJ J Pestka
Sep 1, 2002·Plant Disease·Floyd E DowellRobert T Staten
Jun 1, 1998·Plant Disease·L P Hart, O Schabenberger

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Citations

Sep 11, 2017·EFSA Journal·UNKNOWN EFSA Panel on Contaminants in the Food Chain (CONTAM)Lutz Edler
May 1, 2018·Comprehensive Reviews in Food Science and Food Safety·Sara Schaarschmidt, Carsten Fauhl-Hassek
Jul 23, 2008·Journal of Agricultural and Food Chemistry·Torsten NeuhofIrene Nehls

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