Abstract Microwave heating in white corn (Zea mays L.) against Sitotroga cerealella was applied as a post-harvest treatment. Power levels of 293, 390 or 475 W were applied to batches of 250 g until reaching the target temperature of 50 °C in the grain centre and held for 3 min, followed by air-forced cooling during 3.5 min. One batch was left as a control without treatment. Thermocouples and thermal infrared camera were used to know the temperature and evaluate the heating uniformity. Heating times were 56, 40 and 37 s, for 293, 390 and 475 W, respectively, during which 100% of mortality in fourth instar larvae was achieved. The quality of treated white corn was followed throughout moisture content, water activity, bulk density, hardness, colour and germination ability. The proposed microwave treatments were effective for post-harvest corn disinfestation against S. cerealella, without affecting the quality of the grains, especially at 475 W.

中文翻译：

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微波加热作为白玉米（Zea mays）的收获后处理以对抗 Sitotroga绦虫

摘要 在白玉米 (Zea mays L.) 中使用微波加热对抗 Sitotroga 谷物作为收获后处理。将 293、390 或 475 W 的功率水平应用于 250 g 的批次，直到达到颗粒中心 50 °C 的目标温度并保持 3 分钟，然后在 3.5 分钟内强制冷却。留下一批作为对照而没有处理。使用热电偶和热红外相机了解温度并评估加热均匀性。加热时间分别为 56、40 和 37 秒，分别为 293、390 和 475 W，在此期间，四龄幼虫的死亡率达到 100%。通过水分含量、水分活度、堆积密度、硬度、颜色和发芽能力来跟踪处理过的白玉米的质量。