Essential Oils Composition and Antioxidant Properties of Three Thymus Species
Author
Source
Evidence-Based Complementary and Alternative Medicine
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-08-25
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
The essential oils of three wild-growing Thymus species, collected from west of Iran during the flowering stage, were obtained by hydrodistillation and analyzed by gas chromatography (GC) and gas chromatography/mass spectrometry (GC-MS).
Under the optimum extraction and analysis conditions, 44, 38, and 38 constituents (mainly monoterpenes compounds) were identified in T.
kotschyanus Boiss.
and Hohen, T.
eriocalyx (Ronniger) Jalas, and T.
daenensis subsp lancifolius (Celak) Jalas which represented 89.9%, 99.7%, and 95.8% of the oils, respectively.
The main constituents were thymol (16.4–42.6%), carvacrol (7.6–52.3%), and γ-terpinene (3–11.4%).
Antioxidant activity was employed by two complementary test systems, namely, 2,2-diphenyl-1-picrylhydrazyl (DPPH) free-radical scavenging and β-carotene/linoleic acid systems.
Antioxidant activity of polar subfraction of T.
daenensis subsp lancifolius (Celak) Jalas was found to be higher than those of the others in DPPH assay, while nonpolar subfraction of T.
eriocalyx (Ronniger) Jalas has most antioxidant activity in β-carotene/linoleic acid test (19.1±0.1 μg/mL and 96.1±0.8% inhibition rate, resp.).
American Psychological Association (APA)
Amiri, Hamzeh. 2011. Essential Oils Composition and Antioxidant Properties of Three Thymus Species. Evidence-Based Complementary and Alternative Medicine،Vol. 2012, no. 2012, pp.1-8.
https://search.emarefa.net/detail/BIM-992584
Modern Language Association (MLA)
Amiri, Hamzeh. Essential Oils Composition and Antioxidant Properties of Three Thymus Species. Evidence-Based Complementary and Alternative Medicine No. 2012 (2012), pp.1-8.
https://search.emarefa.net/detail/BIM-992584
American Medical Association (AMA)
Amiri, Hamzeh. Essential Oils Composition and Antioxidant Properties of Three Thymus Species. Evidence-Based Complementary and Alternative Medicine. 2011. Vol. 2012, no. 2012, pp.1-8.
https://search.emarefa.net/detail/BIM-992584
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-992584