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Citronella oil
Citronella oil is one of the essential oils obtained from the leaves and stems of different species of ''Cymbopogon'' (lemongrass). The oil is used extensively as a source of perfumery chemicals such as citronellal, citronellol and geraniol. These chemicals find extensive use in soap, candles and incense, perfumery, cosmetic and flavouring industries throughout the world.
Citronella oil is also a plant-based insect repellent, and has been registered for this use in the United States since 1948.〔(【引用サイトリンク】url=http://www.epa.gov/opp00001/chem_search/reg_actions/registration/fs_PC-021901_01-Nov-99.pdf )〕 The United States Environmental Protection Agency considers oil of citronella as a biopesticide with a non-toxic mode of action.〔(EPA citronella reregistration fact sheet )〕 However, since citronella insect repellant effects were not proven within the EU, the use of citronella as an insecticide is prohibited under the Biocidal Product Directive 2006.
Research also shows that citronella oil has strong antifungal properties, is effective in calming barking dogs, and has even been used as a successful spray-on deterrent against pets destroying household items.
==Types==
Citronella oil is classified in trade into two chemotypes:〔Chang, Yu Shyun, 2007, ''8 Map species from Malaysia for ICS,'' Forest Research Institute Malaysia, Workshop on NFP, 28–29 May 2007, Nanchang, PR China ()〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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