Department of Agricultural Engineering, Universidade Federal de Viçosa, Viçosa 36570-900, MG, Brazil.
Serviço Autônomo de Água e Esgoto, Senador Firmino 36540-000, MG, Brazil.
Molecules. 2021 Oct 27;26(21):6483. doi: 10.3390/molecules26216483.
Essential oils (EOs) are widely recognized as efficient and safe alternatives for controlling pest insects in foods. However, there is a lack of studies evaluating the toxicological stability of botanical insecticides in stored grains in order to establish criteria of use and ensure your efficiency. The objective of this work was to evaluate the toxicological stability of basil essential oil () and its linalool and estragole components for (Motschulsky) adults in corn grains by fumigation. The identification of the chemical compounds of the essential oil was performed with a gas chromatograph coupled to a mass selective detector. Mortality of insects was assessed after 24 h exposure. After storage for six (EO) and two months (linalool and estragole) under different conditions of temperature (5, 20, and 35 °C) and light (with and without exposure to light), its toxicological stability was evaluated. Studies revealed that the essential oil of and its main components exhibited insecticidal potential against adults of . For greater toxicological stability, suitable storage conditions for them include absence of light and temperatures equal to or less than 20 °C.
精油（EOs）被广泛认为是控制食品中害虫的有效和安全的替代品。然而，缺乏评价储粮中植物性杀虫剂毒理学稳定性的研究，以建立使用标准并确保其效率。本工作旨在通过熏气评估罗勒精油（）及其主要成分里哪醇和茴香脑对玉米颗粒中（Motschulsky）成虫的毒理学稳定性。用气相色谱仪-质量选择性检测器对精油的化学成分进行了鉴定。暴露 24 小时后评估昆虫死亡率。在不同温度（5、20 和 35°C）和光照条件（有光照和无光照）下储存 6 个月（EO）和 2 个月（里哪醇和茴香脑）后，评估其毒理学稳定性。研究表明，罗勒精油及其主要成分对玉米颗粒中（Motschulsky）成虫具有杀虫潜力。为了获得更好的毒理学稳定性，适合它们的储存条件包括避光和温度等于或低于 20°C。
