Chemical Composition and Insecticidal Properties ofThymus numidicus(Poiret) Essential Oil from Algeria

Autor:	Faiza Saidj, Fatiha Bentahar, Chahrazed Boutekedjiret, Sid-Ahmed Rezzoug
Rok vydání:	2008
Předmět:	Chromatography Chemistry Organic Chemistry Extraction (chemistry) Fraction (chemistry) Biochemistry Analytical Chemistry law.invention Steam distillation chemistry.chemical_compound Linalool law Carvacrol Gas chromatography Thymol Essential oil
Zdroj:	Journal of Essential Oil Bearing Plants. 11:397-405
ISSN:	0976-5026 0972-060X
Popis:	Essential oils of thyme (Thymus numidicus (Poiret)) from Algeria were isolated by steam distillation, analysed by gas chromatography coupled with the mass spectrometry (GC-MS) and investigated for their insecticidal activities against Rhizopertha dominica. Contact toxicity of global oil recovered after one hour of extraction and its fraction F1 recovered after 2.5 minutes of extraction were tested using the filter paper method. Analysis of the essential oil made it possible to identify 14 components, representing 75.4 % of the oil. The major components were thymol (51.0 %) followed by carvacrol (9.4 %), linalool (3.3 %), thymol-methyl-ether (3.2 %) and iso-caryophyllene (2.7 %). The evolution of the yield and the composition of essential oil as function of time extraction show that steam distillation is a very rapid process and the duration of extraction could be limited to 15 minutes, since more than 94 % of oil are extracted. The toxicity tests show that thyme oil and its fraction F1 have an in...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5d06be41685ade32329241cfd7f7be48 https://doi.org/10.1080/0972060x.2008.10643646 Zobrazit plný text záznamu