The composition of essential oil from the rhizomes of Hedychium larsenii M. Dan & Sathish was examined by GC-FID and GC-MS techniques. 99% of the oil consisted of monoterpenoids. Sesquiterpenoids were present only in negligible quantities. Linalool and 1,8-cineole were identified as the major components. The oil showed moderate antibacterial activity against Gram-positive and Gram-negative bact...

A study was conducted in an early second-growth forest aiming at knowing the richness, relative abundance, seasonal distribution, and hourly frequency of euglossine bees, and their association with scent baits. Male bees were attracted to cineole, vanillin, methyl salicylate, and eugenol. The baits were hooked 1.5 m high and 6 m from one another. The specimens were collected from December 1997 ...

The essential oil of the aerial parts of Lantana achyranthifolia Desf. (Verbenaceae) was examined by GC and GC-MS. Eighteen constituents were identified. Carvacrol, 1,8-cineole, isocaryophyllene, beta-bisabolene and alpha-bisabolol were found to be the major components. The oil exhibited antibacterial activity against fourteen Gram-positive and Gram-negative bacteria.

Dermatological diseases of the scalp significantly affect life quality people. According to statistical data, seborrheic dermatitis (SD) is most common dermatological disease in more than 50% population all over world. The medicines for treatment SD are synthetic antimicrobial substances with high efficiency, but their regular use changes a biodiversity microflora and determines subsequent resi...

Essential oils (EOs) from Cymbopogon citratus (CC), Eucalyptus citriodora (EC), Eucalyptus camaldulensis (ED), and Citrus sinensis (CS) were obtained by hydrodistillation process. The EOs were evaluated in vitro for activity against Trypanosoma brucei brucei (Tbb) and Trypanosoma evansi (T. evansi). The EOs were found to possess antitrypanosomal activity in vitro in a dose-dependent pattern in ...

Croton zehntneri (Euphorbiaceae) is a native aromatic plant from Northeast region of Brazil. The monoterpenoid estragole (ESL) has been isolated by classical chromatographic methods from the essential oil (EO) of C. zehnteneri leaves and characterized by GC-FID and GC-MS, its antimicrobial and cytotoxic potentials being assessed. The analysis of the EO enabled the identification of 100% of the ...