RESUMEN
In this study the chemical composition of the essential oil from aerial parts of Moluccella spinosa L. collected in Sicily was evaluated by GC and GC-MS. The main components of M. spinosa L. were α-pinene (26.6%), caryophyllene oxide (16.8%) and ß-caryophyllene (8.6%). A comparison with other studied oils of genus Moluccella is made. Antibacterial and antifungal activities against some microorganisms infesting historical textiles were also determined.
Asunto(s)
Lamiaceae/química , Aceites Volátiles/química , Aceites de Plantas/química , Textiles/microbiología , Antibacterianos/química , Antifúngicos/química , Monoterpenos Bicíclicos , Pruebas de Sensibilidad Microbiana , Monoterpenos , Componentes Aéreos de las Plantas/química , Sesquiterpenos Policíclicos , Sesquiterpenos , SiciliaRESUMEN
The petroleum ether extract of Magydaris tomentosa flowers (Desf.) W. D. J. Koch has been analyzed by GC-MS. It is mainly constituted by furanocoumarins such as xanthotoxin, xanthotoxol, isopimpinellin, and bergaptene. Other coumarins such as 7-methoxy-8-(2-formyl-2-methylpropyl) coumarin and osthole also occurred. The antiproliferative activity of Magydaris tomentosa flower extract has been evaluated in vitro on murine monocye/macrophages (J774A.1), human melanoma (A375) and human breast cancer (MCF-7) tumor cell lines, showing a major activity against the latter.
Asunto(s)
Alcanos/química , Apiaceae/química , Extractos Vegetales/farmacología , Animales , Muerte Celular/efectos de los fármacos , Línea Celular Tumoral , Proliferación Celular/efectos de los fármacos , Cumarinas/química , Flores/química , Cromatografía de Gases y Espectrometría de Masas , Humanos , RatonesRESUMEN
This study analyses the chemical composition and in vitro antioxidant activity of both the essential oil and the 80% aqueous acetone extract of Tetraclinis articulata leaves. The GC-MS analysis of the essential oil identified 66 components that comprise 93.5% of the oil. The major constituents of the oil are: bornyl acetate (31.4%), α-pinène (24.5%) and camphor (20.3%). Antioxidant activities of the samples were determined using four different test systems, namely DPPH, ß-carotene/linoleic acid, reducing power and metal chelating activity assay. Test results from the DPPH system showed the strongest radical scavenging activity was exhibited by the 80% aqueous acetone extract (IC50 = 5.5 µg mL⻹), which was two times higher than the positive control (BHT). The amount of the total phenolics, flavonoids and condensed tannins was very high in the 80% aqueous acetone extracts. The correlation between the antioxidant activity potential and total phenolic level of the extract was noted.
Asunto(s)
Antioxidantes/química , Cupressaceae/química , Aceites Volátiles/química , Extractos Vegetales/química , beta Caroteno/química , Compuestos de Bifenilo/química , Cromatografía de Gases y Espectrometría de Masas , Ácido Linoleico/química , Picratos/química , Hojas de la Planta/química , Polifenoles/químicaRESUMEN
The volatile constituents of the aerial parts of Centaureaformanekii Halacsy and the aerial parts, capitula and roots of C. orphanidea Heldr. & Sart. ex Boiss. ssp. thessala (Hausskn.) Dostál from Greece were extracted by hydrodistillation and analyzed. The main components in C. formanekii were hexadecanoic acid (13.6%), delta-elemene (9.1%), and spathulenol (6.9%). The main components in C. orphanidea ssp. thessala were gamma-elemene (26.1%) and caryophyllene oxide (13.2%) in the aerial parts, hexadecanoic acid (33.5%) and heptacosane (6.3%) in the capitula, and hexadecanoic acid methyl ester (22.0%) and a-chamigrene (14.0%) in the roots. The chemotaxonomic significance with respect to other previously studied species of the same sections (Phalolepis and Achrolopus, respectively) is discussed.