Main parameters of essential oil of two species from genus Pelargonium, cultivated in laboratory conditions

V. Badzhelova*

Institute of Roses, Essential and Medical Cultures, 6100 Kazanlak, Bulgaria

Manuscript received 24 July 2020; accepted for publication 20 January 2021

Abstract. The objective of this study is to determine the quantity and parameters of the obtained essential oil of two species from genus Pelargonium (Pelargonium graveolens L’Her. and Pelargonium radens H.E.Moor) in Bulgaria. This research was conducted using the microdistillation method and gas chromatography. As a result significant difference in the quantity of obtained essential oils has been found and the number of the main components and the ratio of the dominant ingredients have been determined. In general, they represent the main part of the oils – from 45.23 % in Pelargonium radens to 47.60 % in Pelargonium graveolens, respectively. The highest is the content of citronellol+nerol in both species, 38.88 % for Pelargonium radens and 37.97 % for Pelargonium graveolens.