Tinkturenpresse

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Poaceae - syn. Andropogon nardus L., citronella grass, Citronella Gras

Perennial, native to South India and Sri Lanka, introduced elsewhere and commonly cultivated as a crop plant.
Essential oil extracted from the aerial parts is the source of the commercial „citronella oil“ which is used as an insect repellent. http://www.floridata.com/ref/c/cymb_nar.cfm

Baranauskiene et al. reported 2006 that citronella essential oil is major constituted by limonene 5.2%, citronellal 33.9%, citronellol 8.7% and geraniol 16.4%.
Beneti et al. found limonene 3.4%, citronellal 40.2%, citronellol 13.3%, geraniol 17.7%, elemene 2.7%, citronellyl acetate 4.5%, d-cadinene 2.8%, geranyl acetate 4.6%, and elemol 4.7%. [Fractionation of citronella (Cymbopogon winterianus) essential oiland concentrated orange oil phase by batch vacuum distillation, Stephani C. Beneti, Eline Rosset, Marcos L. Corazza, Caren D. Frizzo, Marco Di Luccio, J. Vladimir Oliveira, Journal of Food Engineering 102 (2011) 348–354] http://de.scribd.com/doc/56036245/Citronella