Seasonal variation in the essential oil composition of Artemisia herba alba, Growing in Eastern Morocco

The seasonal and even the number of hours that enable plants to be exposed to sunlight, may influence the phytochemistry of the plant since some compounds may be accumulated at a particular period to respond to environmental changes. Objectifs The seasonal variation of the essential oil extracted from the aerial parts of Artemisia herba alba growing in eastern Morocco (Taforalt) has been studied

Evaluation du potentiel antioxydant et de la propriété antiproliférative de l’huile essentielle d’armoise blanche du Maroc oriental

La présente communication est consacrée à l’étude du pouvoir antioxydant de l’huile essentielle de l’armoise blanche. Les résultats obtenus montrent qu’effectivement l’huile essentielle de l’armoise et riche en antioxydant et inhibe le développement de quelques lignées cellulaires

Chemical Composition, Cytotoxic and Antioxydant Activity of The Essential Oil of Lavandula dentata

peer reviewedThe composiiton of the essential oil from aerial part and flowers of lavandula dentate, collected in eastern Morocco (Taforalt, Talazart), were analysed by GC/FID and GC-MS

Chemical Composition and Antimicrobial Activity of Essential Oil of Thyme (Thymus vulgaris) from Eastern Morocco

peer reviewedThe essential oil from flowering Thyme (Thymis vulgaris L.) an aromatic member of the Lamiaceae family, from Morocco, obtained by hydrodistillation, was analysed by GC/FID and GC/MS. The constituents were identified by their mass spectra and Kovats’ indices. Forty three compounds consisting 97.85% of the total components were identified from the oil obtained with 1% yield. Among those, camphor (38.54%), camphene (17.19%), α-pinene (9.35%), 1, 8-cineole (5.44%), borneol (4.91%) and β-pinene (3.90%) were the major oil components. Essential oil of Thyme was evaluated for its antibacterial activities against six Gram-positive and Gram negative pathogenic bacteria: Staphylococcus aureus, S. epidermidis, Streptococcus sp., Pantoa sp. and Escherichia coli

Antioxidant and cytotoxicity activity of essential oil grown Lavandula dentata

The present study describes the phytochemical profile Antioxidant and cytotoxicity activity of Lavandula dentata essential oil, collected in eastern Morocco (Taforalt). The sample of essential oil was obtained from the aerial parts of the plant by hydrodistillation and analyzed by GC–MS. The in vitro cytotoxicity of the oil on the cancer cell lines PC-3 (prostate), V79 (fibroblaste) and normal P388D1 (murine macrophage) was examined. We have shown that the oil had negligible cytotoxic effects against all cell lines tested. The oil was also found to possess antioxidant activity as demonstrated by the 1,1-diphenyl-2- picrylhydrazyl (DPPH) radical method. Lavandula dentata essential oil has promising potentials for incorporation into various food, cosmetic and pharmaceutical products for which a natural aroma, colour, antioxidant and antimicrobial additive is desired

ESSENTIAL OIL COMPOSITION AND ANTIMICROBIAL ACTIVITY OF ARTEMISIA HERBA-ALBA ASSO GROWN IN MOROCCO

Volatile components of Artemisia herba-alba Asso essential oil obtained by hydrodistillation growing in eastern Morocco (Taforalt) were investigated by GC/FID and GC-MS. The major components were found to be camphor (43.07%), camphene (7.2%), 1,8-cineole (7.08%), filifolone (7.04%), borneol (4.88%), and bornyl acetate (3,79%).The essential oil has been tested for antimicrobial activity against Gram-negative and Gram-positive bacteria. Inhibition of growth was tested by the agar diffusion method. The minimal Inhibitory Concentration (MIC) was determined by the method of microtitration assay

Lavender oil as an ecofrindly inhibitor for mild steel in 1 M HCl

Lavender oil is extracted from lavender herb, collected in the east region of Morocco (Tafoughalt) and tested as corrosion inhibitor for mild steel in 1 M HCl. The inhibiting effect was studied by weight loss measurements, potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) methods. Polarisation measurements show that lavender oil essentially acts as a cathodic inhibitor. The natural oil reduced the overall corrosion current density. The protection efficiency was found to increase with oil content to obtain ca. 90% at only 2 g L-1 and kept its inhibiting efficiency the same even at higher temperatures. The adsorption of lavender oil on mild steel followed the Langmuir's isotherm model. The thermodynamic parameters for inhibiting process were calculated and interpretation of the results was given