The essential oils isolated by hydrodistillation from the leaves of two Eucalyptus gillii Maiden and E. microcarpa Subsp. macrocarpa Hook were analysed by GC and GC/MS. The main components identified in E. gillii oil were 1, 8-cineole (79.5%), trans-pinocarveol (8%) and ?-pinene (2.7%), and in E. microcarpa were 1, 8-cineole (77.3%), ?-pinene (5.6%) and terpin-1-ol (5.1%). Oils with high conten...

BACKGROUND According to prescribing information for Myrtol standardized enteric-coated soft capsules, the medicine should be taken on an empty stomach. Some patients may experience stomach discomfort after oral administration in fasted state and would prefer to take the medicine after a meal. However, there is no literature addressing the effect of meal on absorption of this drug; therefore, it...

Molecular docking and quantum chemistry calculations were used to establish the molecular model of β-cyclodextrin inclusion complex with five major compounds found in Thai sweet basil (Ocimum basilicum) essential oils, which includes linalool, eugenol, methyl eugenol, estragole, and eucalyptol. The electronic structures and the binding energies of 1:1 inclusion complexes of host:guest ratio for...

A simple method to transform the easily available 1,8-cineole (1) into the more valuable compound seudenone, 3-methyl-2-cyclohexenone (4), a sex pheromone of Dendroctonus pseudotsugae Hopkins, is described. © 2000 Elsevier Science B.V. All rights reserved.

When plants receive volatiles from a damaged plant, the receivers become more resistant to herbivory. This phenomenon has been reported in many plant species and called plant-plant communication. Lab experiments have suggested that several compounds may be functioning as airborne signals. The objective of this study is to identify potential airborne signals used in communication between sagebru...

The present study was undertaken to investigate the pharmacokinetics of 1,8-cineol in human subjects during prolonged inhalation. The results showed that 1,8-cineol is well absorbed from breathing air, with a peak plasma concentration after -18 min. The elimination of this fragrance compound from the blood is biphasic, with a mean distribution half-life of 6.7 min and an elimination half-life o...

Static headspace analysis of Gabon Estuary okoume (Aucoumea klaineana Pierre) oleoresins indicated that nine products represented the major part (>96%) of the volatile compounds: six monoterpenes (α-pinene, β-pinene, limonene, α-phellandrene, β-phellandrene, 3-carene), one monoterpenic alcohol (α-terpineol) and two other derivatives (p-cymene, eucalyptol). The relative amount of each product ap...

Volatile components in cape gooseberry fruit at ripe stage were collected using headspace-solid phase microextraction, and analyzed by gas chromatography-mass spectrometry. Three solid phase microextraction fiber coatings (DVB/CAR/PDMS, CAR/PDMS, and PDMS/DVB) were tested for evaluation of volatile compounds. DVB/CAR/PDMS fiber showed a strong extraction capacity for volatile compounds and prod...

Background: Essential oils extracted from plants have been widely used in antimicrobial activity, particularly the Callistemon viminalis, with a high number of essential extracted. Objectives: To identify chemical composition oil derived viminalis and evaluates its activity against selected bacterial fungal strains. Subjects methods: During study, different on some bacteria (Escherichia coli, P...