Conversion of deoxynivalenol to 3-acetyldeoxynivalenol in barley-derived fuel ethanol co-products with yeast expressing trichothecene 3-O-acetyltransferases

Table 2 Comparison of deoxynivalenol (DON) concentration in ground grain versus distillers dried grains with solubles (DDGS) from fermentation with Ethanol Red

Barley line/cultivar	Ground grain, mean ppm ± SEM	Ethanol Red DDGS (no galactose), mean ppm ± SEM	Times DON concentrated in DDGS¹
VA06H-25²	129.5 ± 14.0	212.9 ± 3.0	1.6
VA04B-125³	118.3 ± 10.4	207.1 ± 3.0	1.8
Thoroughbred³	26.7 ± 1.3	130.9 ± 2.4	4.9
Price³	17.7 ± 0.5	99.4 ± 3.5	5.6
Eve²	2.8 ± 0.3	23.0 ± 0.3	8.2

¹The concentration of DON in the DDGS was 1.6 to 8.2 times that in the original starting grain.
²Hulless genotype.
³Hulled genotype.

ISSN: 2731-3654