Journal
REVISTA BRASILEIRA DE FARMACOGNOSIA-BRAZILIAN JOURNAL OF PHARMACOGNOSY
Volume 23, Issue 2, Pages 239-248Publisher
SPRINGERNATURE
DOI: 10.1590/S0102-695X2013005000017
Keywords
antifungal activity; essential oil composition; Lamiacae; Sclerotium cepivorum; Thymus capitatus
Categories
Funding
- project Dolce Rossa- APQ Scientific Research and Technological Innovation
- Calabria Region - Department of Research
- European Community
- Italian Ministry of Economic Development (MISE)
- Italian Ministry of Research Science and Technology (MIUR)
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The paper reports the qualitative and quantitative composition and its antifungal activities of Thymus capitatus (L.) Hoffmanns. & Link, Lamiaceae, essential oils isolated by hydrodistillation from the aerial parts of plants collected in Calabria, Southern Italy. The essential oils of 22 samples were analysed by GC-Flame ionization detection and GC/MS. A total of sixty five compounds were identified. Phenols were present in highest percentage (average: 79,03%). Carvacrol was the main component (81,52%-78,40%) in all samples, confirming that T. capitatus is a carvacrol chemotype, according to literature data for this species. This essential oil was also characterized by high level of biogenetic precursor of the phenols: p-cimene (4,98%), gamma-terpinene (3,13%) and by beta-cariophyllene, were the most abundant sesquiterpene hydrocarbons. Antifungal activity against Sclerotium cepivorum Berk., a soil born fungus, was tested. At the concentration of 250 ppm there was no development of fungal mycelium. To our knowledge, studies have never been conducted on Calabria wild populations of T. capitatus essential oil nor were conducted studies on parasitic fungi of specific interest for crops such as Sclerotium cepivorum.
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