Extraction yield of isoflavones from soybean cake as affected by solvent and supercritical carbon dioxide

2008 ◽  
Vol 107 (4) ◽  
pp. 1728-1736 ◽  
Author(s):  
Tsai-Hua Kao ◽  
John-Tung Chien ◽  
Bing-Huei Chen
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Extraction Yield ◽  
Soybean Cake ◽  
Supercritical Carbon

scholarly journals Determination of Oleanolic and Ursolic Acids inHedyotis diffusaUsing Hyphenated Ultrasound-Assisted Supercritical Carbon Dioxide Extraction and Chromatography

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Ming-Chi Wei ◽  
Yu-Chiao Yang ◽  
Show-Jen Hong
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
High Performance ◽  
Extraction Yield ◽  
Extraction Time ◽  
Different Temperatures ◽  
Ultrasound Assisted ◽  
High Concentrations ◽  
Static Extraction ◽  
Supercritical Carbon

Oleanolic acid (OA) and ursolic acid (UA) were extracted fromHedyotis diffusausing a hyphenated procedure of ultrasound-assisted and supercritical carbon dioxide (HSC–CO2) extraction at different temperatures, pressures, cosolvent percentages, and SC–CO2flow rates. The results indicated that these parameters significantly affected the extraction yield. The maximal yields of OA (0.917 mg/g of dry plant) and UA (3.540 mg/g of dry plant) were obtained at a dynamic extraction time of 110 min, a static extraction time of 15 min, 28.2 MPa, and 56°C with a 12.5% (v/v) cosolvent (ethanol/water = 82/18, v/v) and SC–CO2flowing at 2.3 mL/min (STP). The extracted yields were then analyzed by high performance liquid chromatography (HPLC) to quantify the OA and UA. The present findings revealed thatH. diffusais a potential source of OA and UA. In addition, using the hyphenated procedure for extraction is a promising and alternative process for recovering OA and UA fromH. diffusaat high concentrations.

scholarly journals Extraction and Solubility Modeling of Anthocyanins Rich Extract from Hibiscus sabdariffa L. using Supercritical Carbon Dioxide

2021 ◽  
Vol 17 (6) ◽  
pp. 720-730
Author(s):  
Zuhaili Idham ◽  
Nicky Rahmana Putra ◽  
Hasmida Nasir ◽  
Lee Nian Yian ◽  
Nor Faadila Mohd Idrus ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Extraction Yield ◽  
Hibiscus Sabdariffa ◽  
Different Temperatures ◽  
Supercritical Carbon

This study aimed to evaluate the extraction yield, and anthocyanins content of Hibiscus sabdariffa L. calyces extract using different temperatures (T) at 50 - 70°C, pressure (P) at 8 - 12 MPa, and modifier ratio at 5 - 10%.  

Potential of Five-Leaved Chaste Tree (Vitex negundo L.) Leaves as Source of Natural Dye from Supercritical Carbon Dioxide (SC-CO2) Extraction

2013 ◽  
Vol 594-595 ◽  
pp. 207-213
Author(s):  
T.A.T. Mohd ◽  
Nur Hashimah Alias ◽  
Nurul Aimi Ghazali ◽  
A. Azizi ◽  
Idris S. Adeib ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Low Cost ◽  
Extraction Yield ◽  
Operating Conditions ◽  
Optimum Operating ◽  
Synthetic Dyes ◽  
Vitex Negundo ◽  
Optimum Operating Condition ◽  
Supercritical Carbon

Natural dyes represent a sustainable source of colorants, which are low cost and safer than synthetic dyes, concerning human health. The purpose of this study is to extract Vitex negundo L. leaves using supercritical carbon dioxide extraction and to identify the extracts potential as a dye. The extraction process has been conducted at different operating conditions by varying temperature from 40 to 65°C with an increment of 5°C at 20, 25, and 30 MPa within 60 minutes constant time. The extracts obtained at different conditions were analyzed using Gas Chromatography Mass Spectrometer (GC-MS) to determine the chemical compounds present. Increase of temperature increased the extraction yield, but further increasing the temperature above 50°C has reduced the yield. The effect of pressure gave two different patterns, in which the first one showed the yield kept increasing with pressure (20 to 30 MPa) at 40, 45, 50, and 55°C. The second pattern showed sudden reduction of yield above 25 MPa at another two higher temperatures. The highest extraction yield (13.94 mg/g) was obtained at 30 MPa and 50°C which considered as optimum operating condition. GC-MS analysis showed the presence of several phytochemicals including some flavonoid compounds, which are potential sources of dye.

scholarly journals Process optimization for the supercritical carbondioxide extraction of lycopene from ripe grapefruit (Citrus paradisi) endocarp

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Supriya Priyadarsani ◽  
Avinash Singh Patel ◽  
Abhijit Kar ◽  
Sukanta Dash
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Flow Rate ◽  
Polynomial Regression ◽  
Operating Parameter ◽  
Extraction Yield ◽  
Extraction Time ◽  
Citrus Paradisi ◽  
Polynomial Regression Models ◽  
Supercritical Carbon

AbstractIn this study, an underutilized citrus family fruit named grapefruit was explored for the extraction of lycopene using supercritical carbon dioxide (CO2) extraction technique. An experimental design was developed using response surface methodology to investigate the effect of supercritical carbon dioxide (CO2) operating parameter viz., pressure, temperature, CO2 flow rate, and extraction time on the extraction yield of lycopene yield from grapefruit. A total of 30 sets of experiments were conducted with six central points. The statistical model indicated that extraction pressure and extraction time individually, and their interaction, significantly affected the lycopene yield. The central composite design showed that the polynomial regression models developed were in agreement with the experimental results, with R2 of 0.9885. The optimum conditions for extraction of lycopene from grapefruit were 305 bar pressure, 35 g/min CO2 flow rate, 135 min of extraction time, and 70 °C temperature.

scholarly journals Determination of extraction conditions of Ginkgo biloba L. leaves by supercritical CO2 using response surface methodology

2011 ◽  
Vol 65 (2) ◽  
pp. 147-157 ◽  
Author(s):  
Svetlana Milosevic ◽  
Zika Lepojevic ◽  
Zoran Zekovic ◽  
Senka Vidovic
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Response Surface ◽  
Process Parameters ◽  
Ginkgo Biloba ◽  
Supercritical Co2 ◽  
Extraction Yield ◽  
Extraction Time ◽  
Order Polynomial ◽  
Supercritical Carbon

The effects of process parameters on the extraction of Ginkgo biloba L. leaves with supercritical carbon dioxide were investigated. The investigated parameters include particle size (mean particle diameter 0.19, 0.467 and 1.009 mm), solvent flow rate (1.5810-3, 3.2210-3 and 4.1610-3 kg CO2/min) and pressure (100-300 bar), which were obtained by the response surface methodology (RSM) under the following condition ranges: temperature 40-50-60?C, pressure 100-140-180 bar and extraction time of 2-3-4 h at the flow rate of 3.2210-3 kg/min. Based on the experimental results of kinetics of Ginkgo biloba leaves extraction with supercritical carbon dioxide, modeling of the extraction system of Ginkgo biloba-supercritical CO2 was done. Two mathematical models (Reverchon-Sesti Osseo and Sovov?) were applied to correlate the experimental data. RSM was applied to optimize the process parameters of supercritical carbon dioxide extraction of Ginkgo biloba L. leaves. A second-order polynomial response surface equation was developed indicating the effect of variables on Ginkgo biloba extraction yield. The statistical analysis of the experiment indicated that pressure (X1), extraction time (X3), the quadratic of temperature (X22), and the interaction between pressure and extraction time (X1X3), show significant effect on the extraction yield. The results showed that the data were adequately fitted into the second-order polynomial model. It was predicted that the optimum extraction process parameters within the experimental ranges would be the extraction temperature of 52.7?C, the pressure of 184.4 bar, and the extraction time of 3.86 h. Under these conditions, the predicted extraction yield is 2.39% (g/100 g drug).

scholarly journals Influence of Supercritical Carbon Dioxide Extraction Conditions on Extraction Yield and Composition of Nigella sativa L. Seed Oil—Modelling, Optimization and Extraction Kinetics regarding Fatty Acid and Thymoquinone Content

Molecules ◽  
2021 ◽  
Vol 26 (21) ◽  
pp. 6419
Author(s):  
Grzegorz Gawron ◽  
Wojciech Krzyczkowski ◽  
Robert Łyżeń ◽  
Leszek Kadziński ◽  
Bogdan Banecki
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Seed Oil ◽  
Nigella Sativa ◽  
Extraction Yield ◽  
Biologically Active ◽  
Supercritical Carbon Dioxide Extraction ◽  
Oil Fraction ◽  
Carbon Dioxide Extraction ◽  
Supercritical Carbon

Nigella sativa L. is cultivated in many regions and its seeds have found use in variety of foods, but also in traditional medicine due to high content of biologically active essential oils. In this work optimization of supercritical carbon dioxide extraction from N. sativa seeds was performed using response surface methodology to describe the influence of extraction conditions on oil yield. Kinetics of oil and thymoquinone extraction were analyzed as well. It was demonstrated that in order to collect thymoquinone-rich N. sativa oil fraction, appropriate for health-related applications, the extraction should be carried out at 40 °C and 10–15 MPa. Following application of higher pressure of 35 MPa enables effective extraction of remaining oil rich in polyunsaturated fatty acids suitable for use in food industry. Thymoquinone-dependent antibacterial activity of the N. sativa seed oil was observed against bacterial pathogens: Haemophilus influenzae, Staphylococcus haemolyticus, Staphylococcus epidermidis, Enterococcus faecalis and Escherichia coli.

Effect of Supercritical Carbon Dioxide Flow Rate on Extraction Yield, Antioxidant Properties and Morphological Changes of Quercus infectoria Galls

2014 ◽  
Vol 69 (4) ◽  
Author(s):  
Hasmida Mohd Nasir ◽  
Liza Md Salleh ◽  
Mohd Azizi Che Yunus
Keyword(s):  
Carbon Dioxide ◽  
Antioxidant Activity ◽  
Supercritical Carbon Dioxide ◽  
Flow Rate ◽  
Morphological Changes ◽  
Antioxidant Properties ◽  
Extraction Yield ◽  
Co2 Flow ◽  
Quercus Infectoria ◽  
Supercritical Carbon

The extraction condition of supercritical carbon dioxide (SC-CO2) extraction was used to extract Quercus infectoria galls, a medicinal plant which rich with bioactive compound, in order to maintain the green environment as well as the quality of the product. The study was performed to investigate the effect of extraction parameter (CO2 flow rate) on Quercus infectoria galls extract using SC-CO2 extraction. Then, the extract was analysed to determine their antioxidant activity and morphological changes of the Quercus infectoria galls before and after the extraction. Hence, three different CO2 flow rate have been investigated which were 2, 3, and 4 mL/min while pressure (P) and temperature (T) were fixed at highest density (P: 30 MPa, T: 40oC). The results obtained from this study showed the solvent flow rate of 2 mL/min give the highest percentage of extraction yield which is 0.37% compared to others. The extracts were screened for possible antioxidant activity by antioxidant activity 2,2-diphenyl-1-picryl hydrazyl (DPPH) assays. In this study, the best result obtained was at flow rate of 3 mL/min with inhibition percentage of 96.97% but it showed insignificant difference with other CO2 flow rates. The change in morphology of the galls was significant when observed using scanning electron microscope (SEM).  These results indicated that SC-CO2 extraction could be an alternative method for extraction of antioxidative compound from Q.infectoria galls.  

scholarly journals Extraction of Cecropia Pachystachya Leaves by Supercritical Carbon Dioxide: Kinetics, Phytochemical Characterization, Antibacterial and Antioxidant Activities

2020 ◽  
Vol 8 (4) ◽  
pp. 570
Author(s):  
Jaqueline Hoscheid ◽  
Joice Karina Otenio ◽  
Emerson Luiz Botelho Lourenço ◽  
Elissandro Jair Klein ◽  
Camila Da Silva ◽  
...  
Keyword(s):  
Experimental Data ◽  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Supercritical Co2 ◽  
Antioxidant Activities ◽  
Extraction Yield ◽  
Pharmacological Activities ◽  
Supercritical Fluid Technology ◽  
Carbon Dioxide Co2 ◽  
Supercritical Carbon

Cecropia pachystachya Trécul is popularly known in Brazil as embaúva or embaúba. Pharmacological activities were reported in extant studies including the development of anxiolytic, antidepressant, hypoglycemic, antioxidant, cardiotonic, sedative, anti-inflammatory, antimicrobial and leishmanicidal properties for aqueous and alcoholic extracts prepared by infusion or maceration of C. pachystachya leaves. However, there is a paucity of studies examining extracts of leaves of C. pachystachya obtained by supercritical fluid technology. This study evaluated the extraction of Cecropia pachystachya oil using supercritical carbon dioxide (CO2). Extractions were performed at 35 °C, 45 °C, and 55 °C and 14 MPa, 17 MPa, and 20 MPa. The extraction yield, characteristics of the oil, antioxidant and antibacterial potentials were evaluated. The highest extraction yield obtained from C. pachystachya leaves was 1.48% using supercritical CO2 at 55 °C and 20 MPa. The main identified compounds include terpenoids (ursolic and pomolic acids, squalene and β-sitosterol). The most promising results for antibacterial activity relative to Staphylococcus aureus and antioxidant potentials were observed on the extract obtained at 55 °C and 14 MPa. The mathematical Sovová model satisfactorily represented the experimental data.

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