Production and Chemical Compounds of Gaharu Extract by Using Supercritical Fluid Extraction (SFE) of Unsoaked Gaharu at Different Pressure

2015 ◽  
Vol 1115 ◽  
pp. 337-340
Author(s):  
Mohd Radzi Haji Che Daud ◽  
Huzaifah Hamdan
Keyword(s):  
Essential Oil ◽  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Chemical Compounds ◽  
Extraction Process ◽  
World Market ◽  
Gas Chromatography Mass Spectrometry ◽  
Fluid Extraction ◽  
Three Samples ◽  
Long Time

Aquilaria species from the family of Thymelaeceae are the main source of gaharu, which has been classified as one of the most highly valuable, non-timber products in the world market. Currently, the method used for extracting gaharu essential oil is by using hydrodistillation. However, this method is inefficient where it produced low yield of oil with long time of extraction and thus increasing the production cost. To overcome this problem, the extraction of gaharu essential oil using Supercritical Fluid Extraction (SFE) with pressure 20MPa, 30MPa and 40MPa at 65 °C for 2 hours was studied. Result obtained after 2 hours of experiment was 0.6% of yield, which was higher compared to 0.2% yield of gaharu essential oil obtained via 3 days of hydrodistillation. After an extraction process, the product will be analyzed by using Gas Chromatography-Mass Spectrometry (GC-MS) to determine the chemical compounds and composition in the Gaharu SFE’s extract. Over eighteen to thirty-one compounds were identified in SFE extract compared with fifty-five identified in the hydrodistillated oil. The mutual occurrence of chemical compounds in all three samples in SFE was dimethyl phthalate, 8-epi-.gama.-eudesmol, diethyl Phthalate and 2-3-Butanediol. In comparison, the major compounds identified in hydrodistillated oil were 4-phenyl-2-butanone, jinkoh-eremol and α-guaiene (Saiful Nizam & Mashitah, 2010). There were certain aromatic sesquiterpenes compounds that were identified in this study, such as Globulol, Alloaromadendrene Naphthalene, 10s, 11s-Himachala-3(12), 4-diene, .delta.-Selinene and (-) - Aristolene.

Supercritical Carbon Dioxide Extraction of Compounds with Antimicrobial Activity from Origanum vulgare L.: Determination of Optimal Extraction Parameters

2006 ◽  
Vol 69 (2) ◽  
pp. 369-375 ◽  
Author(s):  
S. SANTOYO ◽  
S. CAVERO ◽  
L. JAIME ◽  
E. IBAÑEZ ◽  
F. J. SEÑORÁNS ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Essential Oil ◽  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Pilot Scale ◽  
Mass Spectrometry Analysis ◽  
Gas Chromatography Mass Spectrometry ◽  
Fluid Extraction ◽  
Spectrometry Analysis ◽  
Wide Range

Oregano leaves were extracted using a pilot-scale supercritical fluid extraction plant under a wide range of extraction conditions, with the goal of determining the extraction and fractionation conditions to obtain extracts with optimal antimicrobial activity. In this investigation, the essential oil–rich fractions were selectively precipitated in the second separator, and their chemical composition and antimicrobial activity were investigated. Gas chromatography–mass spectrometry analysis of the various fractions resulted in the identification of 27 compounds of the essential oil. The main components of these fractions were carvacrol, trans-sabinene hydrate, cis-piperitol, borneol, terpinen-4-ol, and linalool. Antimicrobial activity was investigated by the disk diffusion and broth dilution methods against six different microbial species, including two gram-positive bacteria (Staphylococcus aureus and Bacillus subtilis), two gram-negative bacteria (Escherichia coli and Pseudomonas aeruginosa), a yeast (Candida albicans), and a fungus (Aspergillus niger). All of the supercritical fluid extraction fractions obtained showed antimicrobial activity against all of the microorganisms tested, although the most active fraction was the one obtained in experiment 5 (fraction was obtained with 7% ethanol at 150 bar and 40°C). C. albicans was the most sensitive microorganism to the oregano extracts, whereas the least susceptible was A. niger. Carvacrol, sabinene hydrate, borneol, and linalool standards also showed antimicrobial activity against all of the microorganisms tested, with carvacrol being the most effective. Consequently, it was confirmed that essential oil from experiment 5, with the best antimicrobial activity, also presented the highest quantity of carvacrol.

Modeling of supercritical fluid extraction of flavonoids from Calycopteris floribunda leaves

2014 ◽  
Vol 68 (3) ◽  
Author(s):  
Xiong Liu ◽  
Dong-Liang Yang ◽  
Jia-Jia Liu ◽  
Kuan Xu ◽  
Guo-Hui Wu
Keyword(s):  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Extraction Process ◽  
Optimal Conditions ◽  
Fluid Extraction ◽  
Pressure Method ◽  
Organic Solvent Extraction ◽  
Drug Lead ◽  
Temperature And Pressure ◽  
Central Composite

AbstractThe aim of this study was to obtain flavonoids extracts from Calycopteris floribunda leaves using supercritical fluid extraction (SFE) with CO2 and a co-solvent. Pachypodol, a potential anticancer drug lead compound separated from the extracts, was examined. Classical organic solvent extraction (CE) with ethanol was performed to evaluate the high pressure method. HPLC analysis was introduced to interpret the differences between SFE and CE extracts in terms of antioxidant activity and the concentration of pachypodol. SFE kinetics and mathematical modeling of the overall extraction curves (OEC) were investigated. Evaluation of the models against experimental data showed that the Sovová model performs the best. The supercritical fluid extraction process was optimized using a central composite design (CCD), where temperature and pressure were adjusted. The optimal conditions of SFE were: pressure of 30 MPa and temperature of 35°C.

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.

Determination of hexabromocyclododecane in soil by supercritical fluid extraction and gas chromatography mass spectrometry

2018 ◽  
Vol 10 (10) ◽  
pp. 1181-1189 ◽  
Author(s):  
Xinlei Wang ◽  
Xu Zhang ◽  
Zhifeng Wang ◽  
Yuedong Chen ◽  
Xinxin Li ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Gas Chromatography Mass Spectrometry ◽  
Fluid Extraction ◽  
Innovative Method ◽  
Chromatography Mass Spectrometry

Effective detection of hexabromocyclododecane using an innovative method combined with supercritical fluid extraction and gas chromatography mass spectrometry was established.

scholarly journals Aroma Components from Baked Soybean Oil Extracted by CO2 Supercritical Fluid Extraction

2017 ◽  
Vol 7 (1) ◽  
pp. 1
Author(s):  
Xinchu Weng ◽  
Tuo Wang ◽  
Chenxiao Zhang
Keyword(s):  
Soybean Oil ◽  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Aroma Compounds ◽  
Gas Chromatography Mass Spectrometry ◽  
Fluid Extraction ◽  
The World ◽  
Simultaneous Distillation Extraction ◽  
Aroma Components ◽  
Sniffing Technique

Baked soybean oil has desired aroma which is loved by most of people. Soybean oil is one of most important vegetable oils consumed in the world. Analysis of aroma components from Baked Soybean Oil extracted by CO2 Supercritical Fluid Extraction (SFE-BSO) was performed by Gas Chromatography-Mass Spectrometry (GC-MS). The aroma components of SFE-BSO were extracted by Simultaneous Distillation Extraction (SDE). Thirty four aroma compounds in SFE-BSO were identified. 3-Methyl-1-butanol and other eleven compounds were the key aroma compounds of SFE-BSO, which were analyzed by GC-Sniffing technique.

Sign in / Sign up

Export Citation Format

Share Document