BACKGROUND In the altiplano of Northern Chile the plant Senecio nutans is habitually used as an infusion to relieve the effects of altitude sickness (locally known as "puna"). It is also used to alleviate the bronchitis, whooping cough, asthma, stomachache, tiredness and fever. The extreme conditions under which these plant grow and scientific data that shows the inhibiting potential of the ess...

Hydro-distilled volatile oil from the aerial parts of Chenopodium ambrosioides L. (Chenopodiaceae) was obtained and the oil was analyzed by a combination of GC and GC/MS. Air-dried aerial parts of Chenopodium ambrosioides (100 g) which were collected from Anzaly in Mazandaran province at full flowering stage on June 2003, were subjected to hydro-distillation for 3.5 h using a Clevenger-type app...

Hydro-distilled volatile oil from the aerial parts of Chenopodium ambrosioides L. (Chenopodiaceae) was obtained and the oil was analyzed by a combination of GC and GC/MS. Air-dried aerial parts of Chenopodium ambrosioides (100 g) which were collected from Anzaly in Mazandaran province at full flowering stage on June 2003, were subjected to hydro-distillation for 3.5 h using a Clevenger-type app...

Background: Summer savory (Satureja hortensis L.) is one of the most important medicinal and spice plants cultivated in many parts of the world. Objective: A greenhouse experiment was conducted to study the effects of FeSO4 and citric acid application on the morphological traits and essential oil content and its component, gamma-terpinene in S. hortensis. Methods: FeSO4 in four levels (0, 3, ...

Redbay ambrosia beetle, Xyleborus glabratus Eichhoff, is a native of Southeast Asia recently established in coastal forests of Georgia, SC and Florida. It vectors a wilt fungus, Raffaelea sp., lethal to redbay trees, Persea borbonia L. Spreng, and certain other Lauraceae. No practical monitoring system exists for this beetle so we conducted studies to identify host attractants and develop lures...

the water-distilled essential oils, which were obtained from the fresh aerial parts of satureja hortensis were analyzed by means of gc and cc/ms instruments. the plant was collected during the flowering stage from foroomad mountains, semnan province, and heart of iran. twenty compounds were identified in the different samples analyzed, representing 100% of the total oil contents. in terms of ge...

The present work aimed to study the composition and antimicrobial properties of essential oil Helichrysum ibityense leaves (HIEO). HIEO was extracted by hydrodistillation from fresh with a yield 1.9%. It had relative density 0.9247 at 20℃, refractive index 1.4706, an optical rotation -0°33, acid 2.10 ester 54. Gas chromatography analysis/flame ionisation detection identified 17 components, repr...

Mono- and diterpenoids are of great industrial and medical value as specialty chemicals and pharmaceuticals. Production of these compounds in microbial hosts, such as Escherichia coli, can be limited by intracellular levels of the polyprenyl diphosphate precursors, geranyl diphosphate (GPP), and geranylgeranyl diphosphate (GGPP). To alleviate this limitation, we constructed synthetic operons th...