Effect of pressure variation on the efficiency of supercritical fluid extraction of wild carrot (Daucus carota subsp. maritimus) extracts.
J Chromatogr B Analyt Technol Biomed Life Sci
; 1125: 121713, 2019 Sep 01.
Article
in En
| MEDLINE
| ID: mdl-31323559
ABSTRACT
The present study was conducted to check the comparative qualities of essential oils prepared by hydrodistillation (HD) and supercritical fluid techniques. It constitutes the first attempt to investigate the chemical composition of Daucus carota subsp. maritimus extracts using supercritical fluid technology (SFE) as an environmentally clean innovative method of extraction. The effect of pressure on the nature of extractable substances from wild carrot has been performed at a constant temperature of 50⯰C and two different pressures (100 and 300â¯bar). The experimental results showed that pressure had a significant enhancing effect on the fluid transport properties and therefore on yield values. The extraction yield increases from 1.167 to 2.986% while increasing pressure. The chemical compositions of the essential oils prepared by HD and SFE were analyzed on the basis of gas chromatography-mass spectroscopy (GC-MS). Thus, we noticed that all analyzed samples were enriched in geranyl acetate and ßbisabolene, and that the quantities of different identified substances were extremely sensitive to the extraction method and to the pressure variation in case of SFE.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Plant Oils
/
Oils, Volatile
/
Daucus carota
/
Chromatography, Supercritical Fluid
Type of study:
Evaluation_studies
Language:
En
Journal:
J Chromatogr B Analyt Technol Biomed Life Sci
Journal subject:
ENGENHARIA BIOMEDICA
Year:
2019
Document type:
Article
Affiliation country:
Tunisia