Essential oils, commonly known as etheric oils (essential oil, volatile oil), are produced by plants and can be obtained from the roots, stems, leaves, flowers of plants. This study aims to determine chemical components kaffir lime (Citrus hystix) essential ylang (Cananga ordorata), patchouli oil (Pogostemon cablin benth) farmers refiners in Lembang, West Java. The composition this was analyzed...

background & aim: this research, order to study of extraction and investigation on the essential oil of anthemis hyalina dc. were conducted.   material & methods: the volatile constituents of anthemis hyalina dc. were isolated by hydro-distillation and analyzed by gc and gc/ms. in this study, samples were collected from qazvin on june 2008.   results & discussion: the oil yields...

Passively transferred immune serum provided significantly greater protection to BALB/c mice against attenuated Brucella abortus 19 than against virulent strain 2308, whether serum donors had been infected with strain 19 or 2308. In contrast, immune T cells conferred better protection upon recipients challenged with the homologous strain of B. abortus. It is hypothesized that strain 2308, but no...

This study was designed to examine for the first time the antimicrobial and antioxidant activities of essential oils and organic extracts of Tunisian Citrus aurantium. Essential oils extracted by hydrodistillation from the peels, leaves and flowers were characterized by GC–MS. It results in the identification of three chemotypes: limonene (87,02 %), linalyl acetate (53,76 %) and linalool (39,74...

Thyme (Thymus vulgaris L.) is a commonly used flavoring agent and medicinal herb. Several chemotypes of thyme, based on essential oil compositions, have been established, including (1) linalool; (2) borneol; (3) geraniol; (4) sabinene hydrate; (5) thymol; (6) carvacrol, as well as a number of multiple-component chemotypes. In this work, two different T. vulgaris essential oils were obtained fro...

Chemical composition of propolis has been reported to be phyto-geographical in nature. The aim this study was isolate and characterize chemical compounds from hexane ethyl acetate extract obtained Gboko. To compounds, subjected column chromatography by gradient elution using two solvent mixtures - hexane: acetate: methanol. structure the isolated compound established 1H-NMR further verification...

From the medicinal species Lavender, inflorescences (Flores SpicaeLavandulae), with a pleasant, characteristic smell, notes of freshness, are used for therapeutic purposes. The active principle lavender flowers is volatile oil, content which differs depending on species, variety, time harvest or form conditioning. Fresh contain up to 0.8% and dried ones 1.5%. Lavender have high linalool (a terp...

In this study, the chemical composition of the essential oils (EOs) extracted from aerial parts of native populations of Origanum vulgare ssp. vulgare from Iran was compared by GC and GC/MS. Plants were collected at bloom stage from their natural habitats located in Kaleybar, Sabalan, Meshkin Shahr and Chalus regions, respectively from East Azerbaijan, Ardabil, Ardabil and Mazandaran provinces....

The twin-arginine translocation (Tat) pathway exports fully folded proteins out of the cytoplasm of Gram-negative and Gram-positive bacteria. Although much progress has been made in unraveling the molecular mechanism and biochemical characterization of the Tat system, little is known concerning its functionality and biological role to confer adaptive skills, symbiosis or pathogenesis in the α-p...