Comparison of Supercritical Carbon Dioxide and Soxhlet Extraction of Lipids from a Brown Seaweed,Sargassum hemiphyllum(Turn.) C. Ag.†

1998 ◽  
Vol 46 (10) ◽  
pp. 4228-4232 ◽  
Author(s):  
Peter C. K. Cheung ◽  
Arnold Y. H. Leung ◽  
Put O. Ang
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Brown Seaweed ◽  
Soxhlet Extraction ◽  
Sargassum Hemiphyllum ◽  
Supercritical Carbon

Effect of Supercritical Carbon Dioxide Condition on Oil Yield and Solubility of Pithecellobium Jiringan (Jack) Prain Seeds

2013 ◽  
Vol 60 (1) ◽  
Author(s):  
Mohd Azizi Che Yunus ◽  
Nur Husnina Arsad ◽  
Salman Zhari ◽  
Zuhaili Idham ◽  
Siti Hamidah Setapar ◽  
...  
Keyword(s):  
Experimental Data ◽  
Carbon Dioxide ◽  
Solvent Extraction ◽  
Supercritical Carbon Dioxide ◽  
Soxhlet Extraction ◽  
Extraction Process ◽  
Antioxidant Compounds ◽  
Extraction Parameters ◽  
Plant Sources ◽  
Supercritical Carbon

Pithecellobium Jiringan (Jack) Prain (P.Jiringan) merupakan salah satu daripada sumber tumbuhtumbuhan yang mengandungi komponen antioksidan. Tujuan kajian ini dijalankan adalah untuk mengkaji kesan-kesan parameter kaedah penyarian bendalir lampau genting dengan menggunkan karbon dioksida sebagai pelarut (SC-CO2) ke atas hasil minyak dan untuk mengukur kebolehlarutan minyak P.Jiringan didalam (SC-CO2) dan mengkorelasi data kebolehlarutan minyak P.Jiringan dengan model Chrastil dan del Valle & Aguilera. Kajian ini telah dijalankan pada suhu antara 40oC sehingga 70oC dan pada tekanan antara 27.58 MPa sehingga 44.82 MPa. Tempoh pengekstrakan adalah 60 minit. Penemuan hasil kajian ini menunjukkan bahawa hasil minyak meningkat dengan peningkatan tekanan dan peningkatan suhu. Pada keadaan suhu malar, kebolehlarutan minyak meningkat dengan peningkatan kepadatan CO2. Analisis keputusan menunjukkan bahawa data keterlarutan minyak P.Jiringan telah berjaya dipadankan dengan model Chrastil. Di samping itu, SC-CO2 memberikan hasil minyak tertinggi berbanding dengan ASE dan proses pengekstrakan Soxhlet. Kata kunci: Kebolehlarutan; Model Chrastil; penyarian bendalir lampau genting; Pithecellobium Jiringan (Jack) Prain Pithecellobium Jiringan (Jack) Prain (P.Jiringan) is one of the medicinal plant sources that consist of antioxidant compounds. The aim of this study was to investigate the effects of supercritical carbon dioxide (SC-CO2) extraction parameters on oil yields and to measure the solubility of P.Jiringan oil in SC-CO2 and correlated the data with Chrastil and del Valle & Aguilera models. The experimental were conducted at temperatures ranging from 40oC to 70oC and pressure from 27.58 MPa to 44.82 MPa. The extraction duration was 60 minutes. The result shows that the oil yields increase as the pressure and temperature increase. The solubility of oil increased as the density of CO2 increased at constant temperature. An analysis of the results show that the solubility experimental data correlated with the Chrastil’s model was successfully matched. In addition, SC-CO2 give the highest oil yields compared to accelerated solvent extraction (ASE) and soxhlet extraction process. Keywords: Chrastil’s model; Pithecellobium Jiringan (Jack) Prain; solubility; supercritical fluid extraction

scholarly journals Extraction of sweet wormwood (Artemisia annua L.) by supercritical carbon dioxide

2020 ◽  
pp. 22-36
Author(s):  
Senka Vidović ◽  
Siniša Simić ◽  
Aleksandra Gavarić ◽  
Milica Aćimović ◽  
Jelena Vladić
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Artemisia Annua ◽  
Soxhlet Extraction ◽  
Fluid Extraction ◽  
Artemisia Annua L ◽  
Sweet Wormwood ◽  
Supercritical Carbon

In this study, supercritical carbon dioxide was applied for the extraction of Artemisia annua L. Moreover, the impact of different parameters of supercritical extraction on total yield was investigated and the obtained yields were compared to the ones obtained by conventional procedures, hydrodistillation and Soxhlet extraction. Supercritical fluid extraction at 40 °C and different pressures (100, 200, and 300 bar) resulted in extraction yields that were in the 2.23-5.18 % range, while the yields at 60 °C and the same pressures were in the range 2.43-3.35 %. The yields obtained by the Soxhlet extraction and hydrodistillation were 10.28 % and 0.10 %, respectively. Although supercritical fluid extraction is inferior to Soxhlet extraction in terms of the recovery of lipophilic components of A. annua, the Soxhlet extraction is not the method of choice for obtaining sweet wormwood extracts due to its numerous disadvantages that include the use of toxic solvents, extended extraction time, health safety of the product, the need for further processing, the impossibility of adjusting the selectivity and thus the composition of the product.

Efficacy of Biological Activity of Andrographis Paniculata Extracted by using Supercritical Carbon Dioxide (Sc-CO2) Extraction

2014 ◽  
Vol 69 (4) ◽  
Author(s):  
Fahim Rithwan ◽  
Salman Zhari ◽  
Mohd Azizi Che Yunus ◽  
Hafiza Mohd Hadzri
Keyword(s):  
Carbon Dioxide ◽  
Free Radical ◽  
Supercritical Carbon Dioxide ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Reducing Power ◽  
Soxhlet Extraction ◽  
Free Radical Scavenging ◽  
Andrographis Paniculata ◽  
Supercritical Carbon

Andrographis paniculata plant has been widely used for traditional medicine such as curing fever, diarrhoea, and inflammation. In this study, the main component (Andrographolide) is extracted from the leaves of A. paniculata using supercritical carbon dioxide (Sc-CO2) and Sc-CO2 assisted by methanol as a modifier solvent. The methanol soxhlet extraction as a standard method was used to compare with the Sc-CO2 extraction. This work also focuses on the determination of anti-oxidant activity of Sc-CO2 extraction extracts of A. paniculata plant. The Sc-CO2 extracts of A. paniculata for both Sc-CO2 extractions with and without modifier showed promising antioxidant activity. Free radical scavenging potential of both Sc-CO2 extractions of A. paniculata plant was evaluated by using reducing power. In this method, ascorbic acid was used as a standard for determining reducing power. Both Sc-CO2 extract of A. paniculata plant exhibited appreciable activity as compared to the methanol soxhlet extract, indicating that A. paniculata has promising free radical scavenging activity.

scholarly journals Utilization of supercritical carbon dioxide (SC-CO2) in lipids extraction from sewage sludge cake: A preliminary study

2021 ◽  
Vol 1195 (1) ◽  
pp. 012054
Author(s):  
N A Khalil ◽  
H A Hamid ◽  
A N S Fizal ◽  
M Zulkifli ◽  
M S Hossain ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Sewage Sludge ◽  
Supercritical Carbon Dioxide ◽  
Soxhlet Extraction ◽  
High Energy ◽  
Raw Material ◽  
Extraction Time ◽  
Solvent Ratio ◽  
Additional Time ◽  
Supercritical Carbon

Abstract Sewage sludge containing a large number of lipids that can be recovered and utilised as a promising raw material in the production of biodiesel. Studies have been conducted to extract lipids from sludge using conventional solvent methods. However, all these conventional methods have some limitations such as extensive product separation and long extraction time (between 4 to 8 hours), which lead to high energy consumption. Supercritical carbon dioxide extraction (SFE) which utilises carbon dioxide (CO2) gas at its critical condition as solvent has been studied extensively in various fields for oil extraction especially for plant and vegetative. This is due to the shorter extraction time and the lipids can be easily separated from the extraction system. The present research has undertaken a comparison study of supercritical carbon dioxide (SC-CO2) utilisation in the extraction of lipids from sewage sludge against conventional soxhlet extraction of methanol and ethanol as solvent. The extraction of lipids from sewage sludge utilising SC-CO2 extraction was successfully being conducted with lipids yield of 0.69 % within 0.5 hours at the operating temperature of 50 °C and pressure of 20 MPa. The lipids were easily separated subsequently from the SFE system when CO2 is being released in gas form through the outlet valve during lipids collection. Whilst soxhlet extraction using methanol and ethanol as solvent (sludge: solvent ratio of 1:10) managed to extract 1.95 % and 2.81 % within 4 hours of extraction time at 60 °C, with the additional time needed to separate the lipids from solvent by evaporation.

scholarly journals Extraction of omega 3 fatty acids from sardine byproducts using supercritical carbon dioxide (SC-CO2)

2020 ◽  
Vol 15 (1) ◽  
Author(s):  
Sahena F. ◽  
Zaidul I.S.M. ◽  
Kamaruzzaman B.Y ◽  
Abir H.M. ◽  
Rukshana A.H.
Keyword(s):  
Carbon Dioxide ◽  
Fatty Acids ◽  
Fatty Acid ◽  
Supercritical Carbon Dioxide ◽  
Fish Oil ◽  
Fatty Acid Content ◽  
Soxhlet Extraction ◽  
Extraction Methods ◽  
Omega 3 ◽  
Supercritical Carbon

Introduction: Sardine generally processed as canned fish, and in consequence of a lot of solid waste are generated as byproducts which could be good sources of fish oil. Omega-3 fatty acid compositions of total lipids extracted by supercritical carbon dioxide (SC-CO2) from sardine fish by-product (head, skin and viscera) were determined and the results were compared with Soxhlet extraction. Methods: SC-CO2 extraction was performed at the optimized condition at a temperature of 60 0 C, the pressure of 35 Mpa and flow rate of 3 ml min-1 . Results: Highest yield was obtained from the skin (42.5%) followed by the head (22.4%) and the viscera (9.6%) which is closer to that of the yield of Soxhlet extraction method where 44%, 23% and 11% (on dry basis) oil were yielded from skin, head and viscera, respectively. Saturated fatty acid was dominant incorporate with monounsaturated and polyunsaturated fatty acid in all organs and the difference of extracted fatty acids between SC-CO2 and Soxhlet methods were insignificant. Docosahexaenoic acid (DHA) was characteristically major PUFA accounting 19.8% in head, 15.4% in skin and 13.6% in viscera of the total fatty acids. Conclusions: Total oil extracted by SC-CO2 had lower free fatty acid content than the oil extracted by Soxhlet method. Thus, SC-CO2 could be the effective method for extracting omega-3 PUFA rich fish oil from sardine by-products.

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