title: Biological activities of Eremostachys laevigata Bunge. grown in Iran.
abstract: Essential oil from flowers, stems, and roots of Eremostachys laevigata Bunge. gathered in Iran was analyzed using gas chromatography (GC) and gas chromatography/mass spectroscopy (GC/MS), and 23, 21, and 9 compounds were identified, respectively. The primary components of all three oils were found to be 1,8-cineole, benzaldehyde, and piperitenone oxide: 18.3%, 18.7%, and 2.5%; 17.9%, 7.7%, and 63.3%; and 15.7%, 21.3%, and 1.2%, respectively. The oils derived from flowers and stems also contained cis-piperitone oxide as a major component (10.1% and 12.2%, respectively). E. laevigata oil showed antibacterial activity, particularly towards Gram-positive bacteria; additionally antioxidant activity was induced with IC(50) of flowers, stems and roots of E. laevigata (277.1, 495.0, and 212.6 μg/ml), respectively. Furthermore, under β-carotene-linoleic acid test assay the flower, stem, and root oils of E. laevigata had a high antibacterial effect.
authors.affiliation: Department of Chemical Engineering, North Tehran Branch, Islamic Azad University, Tehran, Iran. akbaresmaeili@iau.ac.ir
authors.forename: Akbar
authors.initials: A
authors.lastname: Esmaeili
mesh_terms: D000900:Anti-Bacterial Agents / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology*; D000975:Antioxidants / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology*; D001419:Bacteria / Q000187:drug effects / Q000254:growth & development; D001713:Biphenyl Compounds / Q000737:chemistry; D035264:Flowers; D008401:Gas Chromatography-Mass Spectrometry; D007492:Iran; D019686:Lamiaceae / Q000737:chemistry; D008826:Microbial Sensitivity Tests; D009822:Oils, Volatile / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology*; D010851:Picrates / Q000737:chemistry; D010938:Plant Oils / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology*; D018517:Plant Roots; D018547:Plant Stems; D010946:Plants, Medicinal
chemical_list: D000900:Anti-Bacterial Agents; D000975:Antioxidants; D001713:Biphenyl Compounds; D009822:Oils, Volatile; D010851:Picrates; D010938:Plant Oils; C004931:1,1-diphenyl-2-picrylhydrazyl