Abstract Radio frequency treatments were evaluated for the control of Sitophilus zeamais Motschulsky in white maize, and their effects on physiological and biochemical properties were evaluated. A 12 kW, 27.12 MHz radio frequency machine was used with an electrode gap of 20 cm; batches of 10 and 20 kg of white maize (11.8% moisture content, w.b.) were treated. Radio frequency heating treatments at 50 °C for 3 min or 60 °C in white maize were effective to achieve 100% mortality of Sitophilus zeamais 4th instar larvae. Significant changes were observed in the moisture content, water activity and color in the corn kernels after the treatments (P 0.05). Radio frequency has potential to be a postharvest treatment against this pest without damage to white maize.

中文翻译：

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射频加热对白玉米中的 Sitophilus zeamais Motschulsky

摘要 评价了射频处理对白玉米中Sitophilus zeamais Motschulsky 的控制及其对生理生化特性的影响。使用 12 kW、27.12 MHz 射频机，电极间隙为 20 cm；处理 10 和 20 公斤白玉米（11.8% 水分含量，wb）的批次。在白玉米中 50°C 3 分钟或 60°C 的射频加热处理可有效地使 Sitophilus zeamais 4 龄幼虫达到 100% 的死亡率。处理后玉米粒的水分含量、水分活度和颜色发生显着变化（P<0.05）。射频有可能在不损害白玉米的情况下对这种害虫进行收获后处理。