title: Chemical composition and antioxidant activity of essential oil from aerial parts of Teucrium flavum L. subsp. flavum growing spontaneously in Tunisia.
abstract: The objectives of this study were to chemically characterise and evaluate the antioxidant potential of the essential oil from Teucrium flavum L. subsp. flavum growing spontaneously in Tunisia. The volatile oil was extracted by hydrodistillation of the aerial parts in a Clevenger type apparatus. Forty constituents were identified via GC and GC-MS analysis. β-caryophyllene (32.5%) and α-humulene (17.8%) were the most abundant components. The evaluation of free radical scavenging activity using stable DPPH free radical showed that the volatile oil exhibits a moderate antioxidant activity and reduces DPPH to 50% at EC50 value of 1230 μg mL(-1).
authors: a Research Unit 13ES63, Applied Chemistry and Environment, Faculty of Sciences , 5000 Monastir , Tunisia.
authors: Saoussen
authors: S
authors: Hammami
authors: b Laboratory of Botany and Plant Ecology, Faculty of Sciences of Bizerta , 7021 Jarzouna, Bizerta , Tunisia.
authors: Ridha
authors: R
authors: El Mokni
authors: a Research Unit 13ES63, Applied Chemistry and Environment, Faculty of Sciences , 5000 Monastir , Tunisia.
authors: Khaled
authors: K
authors: Faidi
authors: c Industrial Technical Institute "Michele Giua" , Via Montecassino, 09134 Cagliari , Italy.|d Department of Chemical and Geological Science , University of Cagliari, Cittadella Universitaria di Monserrato , S.P. Monserrato-Sestu km 0, 700 - 09042 Monserrato (CA) , Italy.
authors: Danilo
authors: D
authors: Falconieri
authors: d Department of Chemical and Geological Science , University of Cagliari, Cittadella Universitaria di Monserrato , S.P. Monserrato-Sestu km 0, 700 - 09042 Monserrato (CA) , Italy.
authors: Alessandra
authors: A
authors: Piras
authors: d Department of Chemical and Geological Science , University of Cagliari, Cittadella Universitaria di Monserrato , S.P. Monserrato-Sestu km 0, 700 - 09042 Monserrato (CA) , Italy.
authors: Silvia
authors: S
authors: Procedda
authors: a Research Unit 13ES63, Applied Chemistry and Environment, Faculty of Sciences , 5000 Monastir , Tunisia.
authors: Zine
authors: Z
authors: Mighri
authors: b Laboratory of Botany and Plant Ecology, Faculty of Sciences of Bizerta , 7021 Jarzouna, Bizerta , Tunisia.
authors: Mohamed Hédi
authors: MH
authors: El Aouni
mesh_terms: D000975:Antioxidants / Q000737:chemistry* / Q000302:isolation & purification; D008401:Gas Chromatography-Mass Spectrometry; D015394:Molecular Structure; D000081222:Monocyclic Sesquiterpenes; D009822:Oils, Volatile / Q000737:chemistry*; D035261:Plant Components, Aerial / Q000737:chemistry; D010938:Plant Oils / Q000737:chemistry*; D000081223:Polycyclic Sesquiterpenes; D012717:Sesquiterpenes / Q000737:chemistry / Q000302:isolation & purification; D031367:Teucrium / Q000737:chemistry*; D014416:Tunisia
chemical_list: D000975:Antioxidants; D000081222:Monocyclic Sesquiterpenes; D009822:Oils, Volatile; D010938:Plant Oils; D000081223:Polycyclic Sesquiterpenes; D012717:Sesquiterpenes; C042686:humulene; C024714:caryophyllene
keywords: GC/MS; Lamiaceae; Teucrium flavum L. subsp. flavum; aerial parts; antioxidant effects; essential oil; α-humulene; β-caryophyllene