The composition of the essential oil from leaves of Siparuna thecaphora (Poepp. et Endl.) A. DC. collected in Turrialba, Costa Rica, was determined by capillary GC/MS. Seventy-six compounds were identified corresponding to ca. 95% of the oil. The major components were germacrene D (32.7%), alpha-pinene (16.3%), beta-pinene (13.8%) and beta-caryophyllene (4.1%). Thirty-one minor compounds were i...

Abstract Citrus fruits are among the most important economical crops, because of their nutritional value, medicinal importance, and unique flavor. Gas liquid chromatography-mass spectrometry hydro-distilled oil from root resulted in identification 110 compounds with germacrene B (22%), aromadendrene (21.6%), α-santalene (7.1%), geijerene (4,81%), D (4.3%), limonene (3.4%) as major constituents....

The essential oil composition of the aerial parts of Nepeta raphanorhiza is reported for the first time. Capillary GC-FID & GC-MS analysis of the essential oil led to the identification of 16 components accounting for 97.5% of the total oil. Sesquiterpene hydrocarbons dominated the oil composition accounting for 65.3 % followed by monoterpene hydrocarbons constituting 19.5 % of the total oil co...

HIGHLIGHTS The sesquiterpene germacrene D was the major constituent in three EOs under investigation. EO from Campomanesia adamantium considered active against Malassezia furfur. All exhibited vitro anti-inflammatory activity by chemotaxis model. most abundant metabolite class of all study formed hydrocarbons.

This work analyzed the chemical compositions and evaluated antioxidant cytotoxic activities of essential oils (EO) Eugenia patrisii (Epat), stipitata (Esti), Myrcia splendens (Mspl), sylvatica (Msyl), Psidium guajava (Pgua), guineense (Pgui-1 Pgui-2) from Brazilian Amazon. Sesquiterpenoids were found in high concentrations E. M. splendens, which rich E-caryophyllene (32.0% 45.8%); sylvatica, di...

In the current work, in vitro antioxidant, antibacterial, and antifungal activites of the needle terpenes of three taxa of Pinus nigra from Serbia (ssp. nigra, ssp. pallasiana, and var. banatica) were analyzed. The black pine essential oils showed generally weak antioxidative properties tested by two methods (DPPH and ABTS scavenging assays), where the highest activity was identified in P. nigr...

Zornia brasiliensis, popularly known as "urinária", "urinana", and "carrapicho", is a medicinal plant used in Brazilian northeast folk medicine as a diuretic and against venereal diseases. The aim of this study was to investigate the chemical composition and antitumor potential of the leaf essential oil of Z. brasiliensis. The essential oil was obtained by hydrodistillation using a Clevenger-ty...