Composition of the essential oils of wild chamomilla recutita (L.) rausch. Grown in Greece

The essential oils from flower heads and disc florets of wild Chamomilla recutita (L.) Rausch., collected in Attica (Greece), were obtained by hydrodistillation. With the use of GC and GC/MS, 21 components were identified in both oils. The major constituents, were (E)-β-farnesene (21.2% and 5.6%) and bisabolone oxide A (16.0% and 9.0%) in the oils of the flower heads and disc florets, respectively. © 1998, Taylor & Francis Group, LLC. All rights reserved

Volatile constituents of bracts and leaves of wild and cultivated Origanum dictamnus

The chemical composition of the volatile constituents from bracts and leaves of wild and hydroponically cultivated Origanum dictamnus were analysed by GC and GC-MS. Three different levels of nitrogen (100, 150, 200 mg/l), were used in the nutrient solution for the cultivation, using the Nutrient Film Technique (N.F.T). Carvacrol was the predominant compound in all cases. The essential oils were investigated for their antimicrobial activity against Staphylococcus aureus, Staphylococcus epidermidis, Staphylococcus hominis, Escherichia coli, and Pseudomonas aeruginosa