Relative Storability of High-Oil and Bt Corn Hybrids Compared to Conventional Hybrids

Abstract

The objectives of this study were to compare the relative storability between five pairsof normal-oil content and high-oil content corn hybrids, and between five pairs of conventionaland Bt corn hybrids, stored at 20oC (68oF) and at two different moisture values (19, and 22%,wet basis). Hybrids compared in a pair had similar parent genetics. Carbon dioxide productionrate by fungi growing on corn kernels and subsequent grain dry matter loss (DML) to 0.5%,calculated using the carbohydrate oxidation model, were used as the index of deterioration.Change in the fat acidity levels of normal-oil content and high-oil corn hybrids due to fungalgrowth was determined, and used as a possible indicator of relative storability. - Continued onnext page.