Abstract The drying air temperature and storage time can change the milling yield and chemical composition of rice grains. Therefore, the objective was to verify the industrial quality and chemical composition of rice grains, white and integral subgroups, in response to drying air temperature and storage time. For such, the rice grains were subjected to drying in a column dryer with a grain capacity of 1 m3, using 55 and 65 °C drying air temperatures. After, they were stored in PP Woven Bags under environmental conditions for 240 days. After drying and every 60 days the milling was performed, aiming to evaluate the industrial quality and chemical composition of the grains. The whole grains yield was negatively affected by the increase in drying air temperature for both subgroups. The increase in the drying air temperature led to a reduction in the lipid content and an increase in the ash content for grains of white subgroup. The storage time promoted an increase in the whole grains yield in the white subgroup when the grains were dried with the highest drying air temperature. The lipids and proteins contents decreased, while the fibers and ash contents increased during storage for the white subgroup grains. The chemical composition of grains from the brown subgroup did not change during storage, regardless of drying air temperature.

中文翻译：

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干燥空气温度和贮藏对稻谷工业和化学品质的影响

摘要 烘干空气温度和贮藏时间会改变米粒的制粉率和化学成分。因此，目的是验证米粒、白米和完整亚组的工业质量和化学成分，以响应干燥空气温度和储存时间。为此，将米粒在谷物容量为 1 m3 的柱式干燥机中进行干燥，使用 55 和 65 °C 的干燥空气温度。之后，它们在环境条件下储存在 PP 编织袋中 240 天。干燥后每 60 天进行一次碾磨，旨在评估谷物的工业质量和化学成分。两个亚组的全谷物产量都受到干燥空气温度升高的负面影响。干燥空气温度的增加导致白色亚组谷物的脂质含量降低和灰分含量增加。当谷物在最高干燥空气温度下干燥时，储存时间促进了白色亚组中全谷物产量的增加。白色亚组谷物在贮藏期间脂质和蛋白质含量下降，而纤维和灰分含量增加。无论干燥空气温度如何，棕色亚组谷物的化学成分在储存期间都没有变化。而白色亚组谷物在储存期间纤维和灰分含量增加。无论干燥空气温度如何，棕色亚组谷物的化学成分在储存期间都没有变化。而白色亚组谷物在储存期间纤维和灰分含量增加。无论干燥空气温度如何，棕色亚组谷物的化学成分在储存期间都没有变化。