HS-SPME-GC/ MS analysis of 3lamiaceae plants: <i>Ajuga iva</i> (L.) Schreb., <i>Salvia verbenacal</i>.and <i>Thymus algeriensisboiss</i>. & Reut.

Abstract

The chemical analysis of three Algerian plants was conducted by using Headspace Solid Phase Micro Extraction coupled with Gas Chromatogr aphy Mass Spectrometry (HS SPME GC/ MS). This analysis was performed directly on the dried aerial parts of the plants. The results revealed that the major compounds are 1,8 cineol (27.3%) in Ajuga iva, cis-muurola-3,5 diene (14.6%) in Salvia verbenaca and 2,3-dehydro 1,4-cineol (36%) in Thymus algeriensis . The oxygenated monoterpenes are the major class representing 62.1% and 78.4% in Ajuga iva and Thymus a lgeriensis , respectively, whereas the sesquiterpene hydrocarbons are the major class in Salvia verbena ca representing 50.1%. Identification of naturally rare monoterpene ether, 2,3-dehydro 1,4-cineol was the first time in the Ajuga iva Salvia verbenaca and Thymus algeriensis.