Abstract
The elimination of DON and NIV from barley during pearling and from wheat during milling was studied. In barley samples, DON and NIV contents of the original barley and the pearling-treated barley at the level of 55% were analyzed. The original hull-less barley and the pearling-treated hull-less barley at the level of 60% were analyzed. The wheat was milled with test mill and each of the fractions was analyzed. Whereas the original barley contained 0.51 ppm of DON and 0.65 ppm of NIV, inedible parts such as hull and bran contained 95% of DON and 97% of NIV by pearling at the level of 55%. Whereas the original hull-less barley contained 0.31 ppm of DON and 0.48 ppm of NIV, inedible part such as bran contained 93% of DON and 95% of NIV by pearling at the level of 60%. Whereas the original wheat contained 0.37 ppm of DON and 0.55 ppm of NIV, inedible parts such as bran contained 83% of DON and 86% of NIV by milling at the level of 60%. Therefore, the values of DON and NIV contamination were apparently reduced in edible parts of wheat after milling. We investigated the removal of fumonisins in corn by dry milling. Dry milling was done as follows. The raw corn's samples were cleaned and tempered. The endosperm was separated from hull and germ by degerming. After the separated endosperm was ground, separated and dried, the corn grit, the corn flour, the germ and the feed were obtained by treating the endosperm. The former three portions are edible part and the feed is inedible part. By dry milling of corn contaminated with fumonisins, inedible part of corn contained 87% of fumonisin B1 and 88% of fumonisin B2. Therefore, the values of fumonisins contamination were apparently reduced in edible part of corn after dry milling.
