Beijing Key Laboratory of Traditional Chinese Medicine Protection and Utilization, Faculty of Geographical Science, Beijing Normal University, No. 19, Xinjiekouwai Street, Haidian District, Beijing, 100875, China.
Environ Sci Pollut Res Int. 2020 May;27(13):15584-15591. doi: 10.1007/s11356-020-08043-5. Epub 2020 Feb 20.
In order to develop more environmentally benignant insecticides, the Ligusticum pteridophyllum Franch. rhizomes essential oil and supercritical fluid (SFE-CO) extract were obtained by two published techniques, hydrodistillation and SFE-CO. The chemical components of this two tested samples were identified by using gas chromatography-mass spectrometry (GC-MS) and gas chromatography-flame ionization detector (GC-FID). Repellent activity and contact toxicity of the obtained samples and myristicin against the adults of Tribolium castaneum (Coleoptera: Tenebrionidae), Lasioderma serricorne (Coleoptera: Anobiidae), and Liposcelis bostrychophila (Psocoptera: Liposcelididae) were compared. Nineteen components were identified in the SFE-CO extract. Twelve components were identified in the L. pteridophyllum rhizomes essential oil. SFE-CO extract exhibited higher contact toxicity against T. castaneum, L. serricorne, and L. bostrychophila (LD = 69.60 μg/adult, 14.58 μg/adult, and 1.69 μg/cm, respectively) than that of L. pteridophyllum rhizomes essential oil (LD = 87.99 μg/adult, 89.82 μg/adult, and 7.87 μg/cm, respectively). Besides, myristicin (LD = 36.46 μg/adult) showed superior contact toxicity against T. castaneum than that of the L. pteridophyllum rhizomes essential oil and SFE-CO extract. It possessed potentially practical significance to develop L. pteridophyllum rhizomes into plant pesticide or repellent agent for these stored insect controls. Graphical abstract .
为了开发更环保的杀虫剂，采用两种已发表的技术——水蒸馏法和超临界流体萃取（SFE-CO），分别从藁本根茎中获得挥发油和 SFE-CO 提取物。使用气相色谱-质谱联用（GC-MS）和气相色谱-火焰离子化检测器（GC-FID）对这两种测试样品的化学成分进行了鉴定。比较了获得的样品和肉豆蔻醚对玉米象（鞘翅目：象甲科）、烟草甲（鞘翅目：窃蠹科）和嗜虫书虱（缨翅目：书虱科）成虫的驱避活性和接触毒性。在 SFE-CO 提取物中鉴定出 19 种成分。在藁本根茎精油中鉴定出 12 种成分。SFE-CO 提取物对玉米象、烟草甲和嗜虫书虱的接触毒性（LD=69.60μg/成虫、14.58μg/成虫和 1.69μg/cm）均高于藁本根茎精油（LD=87.99μg/成虫、89.82μg/成虫和 7.87μg/cm）。此外，肉豆蔻醚（LD=36.46μg/成虫）对玉米象的接触毒性优于藁本根茎精油和 SFE-CO 提取物。将藁本根茎开发为植物性农药或驱避剂来防治这些仓储害虫具有潜在的实际意义。
