A detailed study of the volatile components of Plectranthus asirensis of Saudi Arabian origin.

Journal Article

مستخلص المنشور

Essential oil composition of Plectranthus asirensis grown in Saudi Arabia
was chemically analysed for the first time by various gas chromatography
techniques (GC–MS, GC–FID, Co–GC, LRI determination and database
and literature searches) using two different stationary phase columns
(polar and nonpolar). This analysis led to the characterisation of a total
of 124 components representing 98.5% of the total oil composition.
The results revealed that P. asirensis oil was mainly dominated by
monoterpenoids (90.7%) in which most representative constituents
were thymol (66.0 ± 0.36%), γ-terpinene (14.0 ± 0.18%), p-cymene
(5.2 ± 0.06%) and β-caryophyllene (3.0 ± 0.03%). It is worth mentioning
here that this is the first report on the phytochemical constituents of
P. asirensis.