Reference : Chemical composition and antioxidant activity of Thymus fontanesii essential oil from...
Scientific journals : Article
Life sciences : Phytobiology (plant sciences, forestry, mycology...)
Life sciences : Food science
http://hdl.handle.net/2268/222673
Chemical composition and antioxidant activity of Thymus fontanesii essential oil from Algeria
English
Sidali, Lamia [University of Khemis-Miliana > > Valuation of Natural Substances Laboratory > >]
Brada, Moussa [University of Khemis-Miliana > > Valuation of Natural Substances Laboratory > >]
Fauconnier, Marie-Laure mailto [Université de Liège - ULiège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Chimie des agro-biosystèmes >]
Lognay, Georges mailto [Université de Liège - ULiège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Chimie des agro-biosystèmes >]
Apr-2018
Natural Products Journal
Yes (verified by ORBi)
International
2210-3155
2210-3163
[en] Thymus fontanesii ; electromagnetic induction heating ; hydrodistillation ; essential oil ; chemical composition ; antioxidant activity
[en] Background: Thymus fontanesii is one of the importance Algerian plant, used traditionally to treat the cough and cold. In addition, it may help to protect the people against lipid peroxidation and oxidative stress and can be used as an antioxidant agent for the preservation of processed food.
Objective: The aim of this study was to determine the chemical composition of Algerian Thymus fontanesii essential oil and to test its antioxidant activity.
Method: The oil was extracted by electromagnetic induction (EMI) heating assisted extraction and by hydrodistillation, and was analysed by gas chromatography with flame ionization detector (GC/FID) and gas chromatography/mass spectrometry (GC/MS). The antioxidant activity was evaluated by three assays mainly: DPPH assay, reducing power and β-carotene/linoleic acid.
Results: The yield of the essential oil was varied from 2.1 ± 0.3 to 3.1 ± 0.1% (w/w), and from 1.8 ± 0.01 to 2.6 ± 0.02% (w/w), for the electromagnetic induction heating assisted extraction and hydrodistillation, respectively. Twenty seven components were identified representing 95.6 - 99.9% of the oil. Carvacrol (54.7 ± 1.2 - 63.9 ± 1.9%) was the major compound followed by p-cymene (9.2 ± 1.2 - 17.5 ± 1.2%) and γ-terpinene (8.8 ± 0.9 - 14.9 ± 0.8%). The Thymus fontanesii essential oil was found as a significant antioxidant with IC50 values were ranging from 57.3 ± 1.4 to 236.7 ± 1.4 µg/mL, which were higher than that of butylated hydroxyl toluene (BHT) choosing as reference (9.1 ± 1.2 to 67.8 ± 0.1 µg/mL).
Researchers
http://hdl.handle.net/2268/222673
10.2174/2210315508666180427162542
http://www.eurekaselect.com/161658/article

File(s) associated to this reference

Fulltext file(s):

FileCommentaryVersionSizeAccess
Restricted access
Sidali.NaturalProductsJournal.2018.PrePrint.pdfAuthor preprint522.94 kBRequest copy

Bookmark and Share SFX Query

All documents in ORBi are protected by a user license.