mosquitoes is well known. As Hoffman and Miller comment, ‘We suggest a combination of directed wind and volatile repellent might be developed as a mosquito deterrent strategy for the backyard setting’ [3]. Indeed, the combination of DEET and permethrin in a coconut base (Mosbar) as a malaria control measure looks promising (M. Rowlands et al., unpublished). Volatile oils from plants can serve a...

537 Abstract: Drug yield and volatile oil content and its components of Thymus vulgaris were investigated during the different growing periods under both lowland and mountainous conditions. The highest drug yields were obtained from lowland conditions during the post flowering stage. Also, it has been determined that environmental conditions have significantly influenced the harvest dates. The ...

The title compound, C16H25Cl2N, was synthesized from β-himachalene (3,5,5,9-tetra-methyl-2,4a,5,6,7,8-hexa-hydro-1H-benzocyclo-heptene), which was isolated from the essential oil of the Atlas cedar (Cedrus Atlantica). The mol-ecule is built up from fused six- and seven-membered rings linked to two three-membered rings. The six-membered ring shows a half-chair conformation, whereas the seven-mem...

2,3,5-trithiahexane, 2,3,4,6-tetrathiaheptane, 2,4,5,7-tetrathiaoctane, two pentathianonanes, 2,4,5,7,9-pentathiadecane and two hexathiaundecanes were isolated from the essential oil and extracts from the bark of Scorodophloeus zenkeri Harms. Four other thioalkanes were found in small amounts in the essential oil.

The title compound, C(16)H(24)Cl(2)O, was synthesized from β-himachalene (3,5,5,9-tetra-methyl-2,4a,5,6,7,8-hexa-hydro-1H-benzocyclo-heptene), which was isolated from essential oil of the Atlas cedar (Cedrus atlantica). The two fused rings exhibit different conformations: the six-membered ring has a screw-boat conformation, while the seven-membered ring displays a boat conformation. The dihedra...

The composition of the steam-distilled volatile oil of fresh and air-dried, indoor-grown marijuana was studied by GC/FID and GC/MS. In all, 68 components were detected of which 57 were fully identified. Drying of the plant material had no effect on the qualitative composition of the oil and did not affect the ability of individuals familiar with marijuana smell to recognize the odor.

Snoring is a very common social inconvenience. This double-blind study suggests a significant reduction in snoring reported by bed partners in a group of snoring volunteers using either an essential oil spray or gargle formulation. Possible modes of action of the essential oils are discussed.