Kaempferia galangal L. (Zingiberaceae), also known as aromatic ginger, is used in the food and cosmetics, pharmaceuticals and maquillage materials, as well as in the traditional Indian medicine. The essential oil (EO) obtained from its rhizome by hydrodistillation is of economic interest and contains ethyl p-methoxycinnamate as the main component, which is used as an anticancer, antimicrobial, skin protector and whiteneing and nematicidal agent. To our knowledge, the mosquitocidal properties of the aromatic ginger EO have hitherto been poorly investigated. Therefore, in the present work, we tested this EO and its major chemical constituents (MCCs), namely ethyl p-methoxycinnamate, trans-ethyl cinnamate and trans-cinnamaldehyde for their larval toxicity on Aedes vittatus and Anopheles maculatus. The EO chemical composition, studied by GC-MS analysis, was made up of 39 compounds, with ethyl p-methoxycinnamate (30.6%), trans-ethyl cinnamate (26.8%) and trans-cinnamaldehyde (11.5%) as the major constituents. The EO and its MCCs showed LC₅₀ values of 39.22, 10.36, 28.26 and 36.35 μg/ml on Ae. vittatus, and of 41.36, 12.56, 30.23 and 38.47 μg/ml on An. maculatus third instar larvae, respectively. The ecofriendliness of EO and MCCs on the aquatic fauna was demonstrated as they were safe to Anisops bouvieri, Acilius sulcatus and Gambusia affinis. Our findings showed that the K. galanga rhizome EO and its MCCs are promising larvicidal agents without affecting non-target organisms (NTOs). They also give news insights into the potential economic exploitation of this EO and its MCCs in the fabrication of effective and eco-friendly mosquitocidal formulations.

Kaempferia galangal L.（姜科），也被称为芳香姜，被用于食品，化妆品，药​​品和粉状物料以及印度传统药物中。通过加氢蒸馏从其根茎中获得的精油（EO）具有经济意义，并包含对甲氧基肉桂酸乙酯作为主要成分，可用作抗癌剂，抗微生物剂，皮肤保护剂以及美白和杀线虫剂。据我们所知，迄今为止，对芳香性姜油EO的灭蚊性能尚未进行充分的研究。因此，在目前的工作中，我们测试了该EO及其主要化学成分（MCC），即对甲氧基肉桂酸乙酯，反式肉桂酸乙酯和反式肉桂酸乙酯。-cinnamaldehyde为他们的幼虫毒性伊蚊vittatus和斑按蚊。所述EO化学成分，用GC-MS分析的研究，是由39个化合物，用乙酸乙酯p -methoxycinnamate（30.6％），反式-乙基肉桂酸甲酯（26.8％）和反式-cinnamaldehyde（11.5％）作为主要成分。EO及其MCC在Ae上的LC ₅₀值为39.22、10.36、28.26和36.35μg/ ml 。vittatus，和41.36，12.56，30.23和38.47微克/毫升的一种。黄斑三龄幼虫分别。证明了EO和MCCs对水生动物具有生态友好性，因为它们对Anisops bouvieri，Acilius sulcatus是安全的和Gambusia affinis。我们的发现表明，K。高良姜根茎EO及其MCC是有前途的杀幼虫剂，而不会影响非目标生物（NTO）。他们还为制造有效和生态友好的灭蚊制剂提供了有关该EO及其MCC潜在经济开发的新闻见解。