Supercritical fluid extraction of Spanish sage essential oil: Optimization of the process parameters and modelling

2009 ◽  
Vol 49 (2) ◽  
pp. 174-181 ◽  
Author(s):  
E. Langa ◽  
G. Della Porta ◽  
A.M.F. Palavra ◽  
J.S. Urieta ◽  
A.M. Mainar
Keyword(s):  
Essential Oil ◽  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Process Parameters ◽  
Fluid Extraction

scholarly journals Basil (Ocimum basilicum L.) essential oil and extracts obtained by supercritical fluid extraction

2015 ◽  
pp. 259-269 ◽  
Author(s):  
Zoran Zekovic ◽  
Snezana Filip ◽  
Senka Vidovic ◽  
Dusan Adamovic ◽  
Ahmed Elgndi
Keyword(s):  
Essential Oil ◽  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Ocimum Basilicum ◽  
Official Method ◽  
Fluid Extraction ◽  
External Standard Method ◽  
Peak Areas ◽  
Quantitative Results ◽  
Supercritical Fluid Carbon Dioxide

The extracts obtained from sweet basil (Ocimum basilicum L.) by hydrodistillation and supercritical fluid extraction (SFE) were qualitative and quantitative analyzed by GC-MS and GC-FID. Essential oil (EO) content of basil sample, determined by an official method, was 0.565% (V/w). The yields of basil obtained by SFE were from 0.719 to 1.483% (w/w), depending on the supercritical fluid (carbon dioxide) density (from 0.378 to 0.929 g mL-1). The dominant compounds detected in all investigated samples (EO obtained by hydrodistillation and different SFE extracts) were: linalool, as the major compound of basil EO (content from 10.14 to 49.79%, w/w), eugenol (from 3.74 to 9.78%) and ?-cardinene (from 3.94 to 8.07%). The quantitative results of GC-MS from peak areas and by GC-FID using external standard method involving main standards, were compared and discussed.

scholarly journals Prediction of the GC-MS retention time for terpenoids detected in sage (Salvia officinalis L.) essential oil using QSRR approach

2020 ◽  
Vol 85 (1) ◽  
pp. 9-23
Author(s):  
Branimir Pavlic ◽  
Nemanja Teslic ◽  
Predrag Kojic ◽  
Lato Pezo
Keyword(s):  
Essential Oil ◽  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Retention Time ◽  
Quantitative Structure ◽  
Fluid Extraction ◽  
Prediction Of Retention ◽  
Structure Retention ◽  
Quantitative Structure Retention Relationship ◽  
Essential Oil Compounds

This work aimed to obtain a validated model for prediction of retention time of terpenoids isolated from sage herbal dust using supercritical fluid extraction. In total 32 experimentally obtained retention time of terpenes, which were separated and detected by GC?MS were further used to build a prediction model. The quantitative structure?retention relationship was employed to predict the retention time of essential oil compounds obtained in GC?MS analysis, using six molecular descriptors selected by a genetic algorithm. The selected descriptors were used as inputs of an artificial neural network, to build a retention time predictive quantitative structure?retention relationship model. The coefficient of determination for training cycle was 0.837, indicating that this model could be used for prediction of retention time values for essential oil compounds in sage herbal dust extracts obtained by supercritical fluid extraction due to low prediction error and moderately high r2. Results suggested that a 2D autocorrelation descriptor AATS0v was the most influential parameter with an approximately relative importance of 25.1 %.

scholarly journals Determination of essential oil content in caraway (Carum carvi L.) species by means of supercritical fluid extraction

2011 ◽  
Vol 49 (No. 6) ◽  
pp. 277-282 ◽  
Author(s):  
J. Sedláková ◽  
B. Kocourková ◽  
L. Lojková ◽  
V. Kubáň
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Small Samples ◽  
Fluid Extraction ◽  
Carum Carvi ◽  
Main Portion

Dependently on planting conditions caraway fruits contain 1–9% of essential oils consisting of about 30 compounds. Carvone and limonene account for the main portion, about 95%. To evaluate the quality of various registered caraway (Carum carvi L.) cultivars (Kepron, Prochan and Rekord) planted during 1998–2000, regarding the effect of sample grinding and preparation, plant treatment and time of harvest, the amounts of essential oil and the carvone/limonene ratio were determined. Both whole and ground caraway seeds were extracted. As obvious from the results, SFE is not suitable for the determination of essential oils in whole seeds since the results are lower in comparison with those of ground caraway. The way of grinding was also examined. Of the three mills used, a splintery mill VIPO seemed to be the most suitable. Further, the amount of essential oil was studied in caraway gathered at the beginning of maturation (sample A) and at full ripeness (sample B) of caraway seeds. It was found that the samples gathered at full ripeness (samples B) had more essential oil. It was also concluded that the use of the regulator Roundup Bioaktiv during caraway maturation to unite the ripening of achenes in the main umbel and the first-order umbels, and the use of fungicides (Alert S and Prelude 10) affected positively the amount of essential oil in caraway. Possibilities of SFE application for the essential oil determination in small samples gathered during breeding were investigated. The results were used as a one of the criteria during breeding. Classical way of the essential oil determination does not allow this option. An alternative method for the isolation and determination of essential oils – supercritical fluid extraction (SFE) – was investigated in this study.

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