The hydro-distilled essential oil from the fresh aerial part of Orchidantha vietnamica K. Larsen collected Lamdong-Vietnam was analyzed by GC-FID (Gas Chromatography-Flame Ionization Detection) and GC-MS Chromatography-Mass Spectroscopy) for first time. characterized presence volatile compounds type terpenoids, in which oxygenated monoterpenes (30.04 %) sesquiterpene hydrocarbons (37.32 are maj...

Rosmarinus officinalis is a well-studied species; however, R. essential oil (EO) from West highlands of Algeria was not investigated chemically and biologically. In this context, chemical composition EOs obtained leaves stem were determined by GC/MS analysis their antifungal activity against Fusarium oxysporum f. sp. albedinis (Foa) evaluated. The indicated that monoterpenes the dominant class ...

The microbial degradation pathways of bicyclic monoterpenes contain unknown enzymes for carbon-carbon cleavages. Such enzymes may also be present in the betaproteobacterium Castellaniella defragrans, a model organism to study the anaerobic monoterpene degradation. In this study, a deletion mutant strain missing the first enzyme of the monocyclic monoterpene pathway transformed cometabolically t...

Francoeuria undulata (L.) LACK is often synonymous with two species of the genus Pulicaria,i.e. Pulicaria undulata (L.) C.A. Mey and Pulicaria crispa (Forssk.) olive, which are oftenincluded under the genus Francoeuria. The essential oil yield and compositions in the fivenatural populations of Francoeuria undulata from Fars Province in southern Iran weredetermined by GC and GC/MS analysis. The ...

Abstract Background ( R )-(+)-perillyl alcohol is a naturally oxygenated monoterpene widely used as the natural flavor additives, insecticides, jet fuels and anti-cancer therapies. It was also readily available precursors. However, this product present at low concentrations from plant sources which are not economically viable. Therefore, alternative microbial production methods rapidly emerging...

Different mixtures of monoterpenes (ketone, alcohol, and alkene) were loaded on paper discs and wax and their knockdown activities were evaluated against Culex pipiens adults. Some individual monoterpenes were also evaluated by residual toxicity technique. Citronella oil as a reference was also loaded separately or in combination with monoterpenes on paper discs and wax. The ketone monoterpenes...

Two types of experimental evidence are presented which suggest that the monoterpenes of peppermint (Mentha piperita L.) are subject to metabolic turnover. In kinetic studies with (14)CO(2), peppermint cuttings rapidly incorporate label into the monoterpenes and then lose most of the label from the monoterpenes, without corresponding changes in the amount of monoterpenes present. When peppermint...

Monoterpenes are nonnutritive dietary components found in the essential oils of citrus fruits and other plants. A number of these dietary monoterpenes have antitumor activity. For example, d-limonene, which comprises >90% of orange peel oil, has chemopreventive activity against rodent mammary, skin, liver, lung and forestomach cancers. Similarly, other dietary monoterpenes have chemopreventive ...

Abstract Clinopodium serpyllifolium is a perennial medicinal plant generally used as herbal tea in folk medicine. Leaves of C. from the representative exemplars Newe Ya’ar living germplasm collection were analyzed for their polyphenolic and volatiles composition, tested antioxidant activity. The oxygenated monoterpenes pulegone (10.4–50.6%), piperitenone oxide (3.2–28.6%), (0.9–14.6%), trans -p...

Ocotea quixos (Lam.) Kosterm. is an aromatic tree native to Ecuador, whose leaves are used prepare beverages which different health benefits attributed. In this study, were collected in the Amazon region environmental conditions and subjected hydrodistillation isolate essential oil. The collection variables type of soil, amount shade, height; addition, presence twig leaf age moisture as variabl...