Essential Oils from Salvia spp. (Lamiaceae). I. Chemical Composition of the Essential Oils from Salvia glutinosa L. Growing Wild in Southern Italy

Abstract

Essential oils from the leaves and flowering tops of Salvia glutinosa L. were obtained by hydrodistillation. The oil content was 0.05% (v/w), and 0.03% (v/w), for the leaves and the flowering tops, respectively. The oil composition was determined by GC and GC/MS. Sixty and seventy-four compounds were identified in the oils from leaves and flowering tops, respectively. Both oils were rich in sequiterpenes, with γ-muurolene (15.1–18.7%) as the major component. An antibacterial screening showed that both oils were inactive against Gram (+) and Gram (-) bacteria.

Key Word Index:

• Salvia glutinosa
• Lamiaceae
• essential oil composition
• γ-muurolene
• antimicrobial screening.