Phytochemical screening and antimicrobial activity of Rech. & Esfand from Iran.

Rech. & Esfand is a folkloric endemic medicinal plant which is found in south of Iran. Phytochemical screening and antimicrobial activities from the aerial parts of were investigated. The essential oil was extracted by hydro-distillation using Clevenger type apparatus and analyzed using GC-MS. The main constituents were, linalool (20.74%), spathulenol (7.98%), caryophyllene oxide (4.77%), isopentyl isovalerate (4.48%), hexyl isovalerate (4.22%), α -gurjunene (4.16%), α -cadinol (3.77%), γ-terpinene (3.52%), terpinen-4-ol (3.37%) and sabinene (3.13). Total phenolic content was 31.39mg gallic acid equivalents/g dry weight, and IC values in the radical scavenging assay was 1423mg/mL. The antimicrobial activity of the essential oil of were studied by disc diffusion method. The results showed that the oil exhibited good antimicrobial activity against all medically important pathogens compare to standard antibiotics.