Abstract The heating and drying of various types of food using microwave improve the economy of time and energy. The physiological quality variation of the seeds submitted to microwave drying is known to some extent. In this context, some authors have reported excellent performance using this technique, on germination rates, after drying. The commercial use of microwave drying in seeds is irrelevant, which motivates more extensive research on the benefits and challenges of this technique that can increase its insertion in the post-harvest handling steps of agricultural products. Corn is a product of high worldwide relevance. Therefore, the use of microwaves in its drying process has excellent potential to arrive at significant savings in its production. Thus, this study is aimed to evaluate the effects on the physiological quality of the seeds submitted to different drying conditions, using the microwave radiation. To that end, corn seeds, with a water content of 20% on wet basis (w.b.), were dried at 40, 50, and 60 °C, at power ratings of 0, 0.6, and 1.2 W/g; in the vacuum condition. Drying occurred continuously, with intermittent power, until the seeds reached the 12% wet basis; in this condition, the seeds could be stored with secure. Germination tests performed shortly after drying showed that the temperature of 40 °C at a power of 0.6 W/g had a reduction in drying time of approximately 5 h when compared to conventional drying (40 °C and 0.0 W/g). The evaluation of the physiological quality of the seeds showed no significant difference in the germination, vigor, and longevity indices of the treated seeds.

中文翻译：

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利用微波优化玉米种子干燥工艺

摘要 利用微波对各类食品进行加热和干燥，提高了时间和能源的经济性。接受微波干燥的种子的生理质量变化在一定程度上是已知的。在这种情况下，一些作者报告了使用这种技术在干燥后发芽率方面的出色表现。微波干燥在种子中的商业用途是无关紧要的，这激发了对该技术的好处和挑战进行更广泛的研究，以增加其在农产品收获后处理步骤中的应用。玉米是一种在全球范围内具有高度相关性的产品。因此，在干燥过程中使用微波具有极大的潜力，可以显着节省生产成本。因此，本研究旨在评估使用微波辐射在不同干燥条件下对种子生理质量的影响。为此，水分含量为 20%（湿基）的玉米种子在 40、50 和 60°C 下干燥，额定功率为 0、0.6 和 1.2 W/g；在真空条件下。干燥持续进行，间歇功率，直到种子达到 12% 湿基；在这种情况下，种子可以安全地储存。干燥后不久进行的发芽测试表明，与传统干燥（40 °C 和 0.0 W/g）相比，在 40 °C 的温度下，功率为 0.6 W/g 的干燥时间减少了约 5 小时。种子生理品质评价结果表明，种子的发芽、活力、