a Mountain Botanical Garden DSC RAS, Yaragskogo Street, 75, Makhachkala, Russian Federation
b Institute of Physics DSC RAS, Yaragskogo Street, 94, Makhachkala, Russian Federation
b Institute of Physics DSC RAS, Yaragskogo Street, 94, Makhachkala, Russian Federation
Abstract
Abstract The supercritical (SC) CO2 extraction at different pressures up to 30 MPa was made with the purpose of defining the dynamics of biologically active substances from a juniper (Juniperus communis var. saxatillis). A temperature 40°C was constant for all SC extraction processes. The supercritical extracts were shown to be more abundant by the compositions than an essential oil, and the extract obtained at 10 MPa was compositionally similar to the essential oil. The essential oil was obtained by a steam distillation in the Clevenger apparatus. Component compositions of extracts and the essential oil were determined by GC MS method. Fundings of investigations indicated that the yield of sesquiterpenes and diterpenes increased with a pressure rise. © 2015 Elsevier B.V. All rights reserved.
Author keywords
Biological active substances; Dynamics; Juniperus communis; Supercritical extraction
Indexed keywords
Engineering controlled terms: Compensation (personnel); Distillation; Dynamics; Extraction; Oil shale; Supercritical fluid extraction; Value engineering
Active substance; Biologically active substances; Component composition; Different pressures; Extraction process; Juniperus communis; Steam distillation; Supercritical extraction
Engineering main heading: Essential oils
ISSN: 08968446 CODEN: JSFLESource Type: Journal Original language: English
DOI: 10.1016/j.supflu.2015.04.009Document Type: Article
Publisher: Elsevier