The essential oils from four samples of Teucrium lusitanicum and one sample of Teucrium algarbiensis, grown in Algarve (southern Portugal) were analyzed by gas chromatography (GC) and gas chromatography-mass spectroscopy (GC-MS). Seventy-one volatile compounds were identified. Major compounds of T. algarbiensis oil were alpha-pinene (8.3%), sabinene (7.2%), beta-pinene (10.2%), limonene (11.8%)...

The chemical composition of essential oil obtained by steam distillation of dried aerial parts of Phlomis bovei De Noé subsp. bovei collected from Algeria, was analyzed by GC and GC/MS. Seventy five constituents (corresponding to 86.37% of the total weight) were identified. The main components were: germacrene D, beta-caryophyllene, beta-bournonene, thymol and hexahydrofarnesyl acetone. Further...

The essential oil isolated from fresh aerial parts of Hypericum perforatum L. was analyzed by GC and GC/MS. One hundred and thirty four identified compounds accounted for 98.7% of the total oil. The main components of the oil were: germacrene D (18.6%), (E)-caryophyllene (11.2%), 2-methyloctane (9.5%), α-pinene (6.5%), bicyclogermacrene (5.0%) and (E)-β-ocimene (4.6%). The volatile profile of H...

In this study we have reported the chemical composition of essential oils obtained from needles twelve Pinus taxa, belonging to subgenera (sections and Trifoliae) Strobus (sect. Quinquefoliae). Monoterpenes dominated over sesquiterpenes in most investigated taxa both subgenera, except representatives subsection Pinaster, subgenus Pinus. ?-Pinene was abundant terpene eight pines, but other domin...

Lemon balm ( Melissa officinalis L.) is a perennial plant of the family Lamiaceae, which used in folk medicine and food industry, as well being processed to obtain essential oil. The aim special work monitor influence vegetation on composition chemical oils, obtained by steam distillation from lemon cultivated North-eastern Bulgaria, has been determined. plants were harvested two periods - firs...

Segregation analysis between Lysopersicon esculentum (cultivated tomato) and L. hirsutum (wild form) in conjunction with positional verification by using near-isogenic lines demonstrated that biosynthesis of two structurally different classes of sesquiterpenes in these species is controlled by loci on two different chromosomes. A locus on chromosome 6, Sesquiterpene synthase1 (Sst1), was identi...

Murraya paniculata (L.) Jack, a small tropical evergreen shrub growing in Nepal, has numerous uses in traditional medicine for treatment of abdominal pain, diarrhea, stomach ache, headache, edema, thrombosis, and blood stasis. The present study investigated the chemical composition and bioactivities of the leaf essential oil from M. paniculata from Nepal. The essential oil from leaves was obtai...

The variability of the soils found in an area together with diversity bioclimatic parameters will affect chemical profile plant species, our case <em>Pistacia lentiscus</em> L. aim this work is to analyse characteristics and soil affecting essential oil (EO) composition leaves growing València (Spain). EO compositions dried from five sampling sites noticeable differences climate fea...