In Thailand, the scaly grain mite, Suidasia pontifica Oudemans, impacts the feed industry by emitting a lemongrass-like odor in contaminated feed, reducing its palatability. This study focused on identifying volatile organic compounds (VOCs) associated with this odor in contaminated chicken feeds and ground maize, as well as individual mites using gas chromatography–mass spectrometry (GC–MS). We explored the relationship between VOC concentration and mite population size in chicken feed cultures, aiming to detect minimal mite presence through regression models. Additionally, we tested the sensitivity of nine electronic odor sensors in detecting these VOCs.

中文翻译：

---

鳞状粒螨 Suidasia pontifica Oudemans 散发气味挥发性化合物的定量鉴定和传感器灵敏度分析

在泰国，鳞状谷物螨（Suidasia pontifica Oudemans）会在受污染的饲料中散发出类似柠檬草的气味，从而降低其适口性，从而影响饲料工业。本研究的重点是使用气相色谱-质谱法 (GC-MS) 识别受污染的鸡饲料和碎玉米中与这种气味相关的挥发性有机化合物 (VOC)，以及单个螨虫。我们探索了鸡饲料培养物中 VOC 浓度与螨虫种群大小之间的关系，旨在通过回归模型检测最小的螨虫存在。此外，我们还测试了九个电子气味传感器检测这些挥发性有机化合物的灵敏度。