Cereal Chem 63:146-150   |  VIEW ARTICLE
Cleaning, Milling, and Baking Tests with Hard Red Winter Wheat Containing Deoxynivalenol.

L. M. Seitz, W. D. Eustace, H. E. Mohr, M. D. Shogren, and W. T. Yamazaki. Copyright 1986 by the American Association of Cereal Chemists, Inc. 

Seven commercial lots of 1982 hard red winter wheat were selected for cleaning, milling, and baking tests. Five scab-infected lots had deoxynivalenol (DON) concentrations ranging from 0.64 to 5.10 ppm, and two lots were scabfree controls. Each lot was cleaned by four methods: 1) normal, single cleaning to obtain maximum screenings with a minimum of wheat lost; 2) double cleaning using the normal flow; 3) single cleaning with suction increased on the millerator and the entoleter aspirator; and 4) single cleaning followed by washing the wheat with water. None of the cleaning methods completely removed DON, and the special methods showed little or no advantage over the normal, single cleaning. Cleaning efficiency varied with DON concentration among lots of cleaned wheats (means of four cleaning methods) ranging from 48 to 86% of that in uncleaned wheat. The cleaned wheat were milled with a Miag Multomat mill. All mill fractions from scab-infected wheat contained DON. Concentrations of DON were generally lower in flours, and higher in offals, than in the cleaned wheat. Average DON concentration of straight-grade flour was 44 and 75% of that in uncleaned and cleaned wheat, respectively. DON was not destroyed by baking bread. Only bread from flours with highest levels of DON had slightly reduced loaf volumes and off-colors in bread crumb compared to controls.