The essential oils of commercially available samples of leaves of Salvia of$cinulis L. and S. fruticosa MILLER obtained by steam-distillation and dichloromethane extraction were analysed by gas liquid chromatography. Although standardized conditions of sample preparation were employed, differences i
The composition of the volatile oil of Ferulago nodosa obtained by steam distillation and supercritical carbon dioxide extraction
β Scribed by Giuseppe Ruberto; Daniela Biondi; Agatino Renda
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 102 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0958-0344
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β¦ Synopsis
The volatile components of Ferulago nodosa (L.) Boiss. were obtained by simultaneous steam-distillation extraction (SDE), and supercritical-fluid extraction (SFE). Gas chromatographic analyses showed different qualitative and quantitative profiles between the oils obtained by the two different procedures. The product of SDE contained several aromatic components, including the main compound 2,3,4-trimethylbenzaldehyde (42.2%), which were artefacts formed by thermolysis of a non-volatile monoterpenoid compound present in the plant. However, SFE gave primarily a-pinene (55.4%), myrcene (10.1%), cis-b-ocimene (7.0%), bphellandrene (5.6%) and sabinene (4.5%)
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This work presents the results of a study involving a high-inertinite coal Ε½ . from Amando Simoes Mine, located in Parana state Brazil . The organic matter ΛΕ½ . was extracted in a supercritical fluid static mode apparatus using toluene as the extraction fluid in the presence of hydrogen. The variabl