Isolation of Tomato Seed Oil From Tomato Waste by Application of Supercritical Fluid CO2 Extraction (original) (raw)
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Extraction and solubility evaluation of functional seed oil in supercritical carbon dioxide
The Journal of Supercritical Fluids, 2013
Hemp (Cannabis sativa L.) seed oil is valued for its nutritional properties and for the health benefits associated with it. Its greatest feature is that the ratio of linoleic acid and linolenic acid is the desirable value of 3:1. In this research, supercritical carbon dioxide was applied to extraction of functional oil from hemp seed. In order to determine the effect of temperature and pressure on the yield of extracted components, the oil was extracted from hemp seed at temperatures between 40 and 80 • C, pressures of 20-40 MPa and a CO 2 flow rate of 3 mL/min. The solubility of hemp seed oil in SCCO 2 determined experimentally was fitted to the Chrastil equation to determine the model parameters. The solubility calculated by Chrastil equation was compared with the experimental data. Finally, the fatty acid profile of the oil was evaluated by gas chromatography-flame ionization detection (GC-FID). There are no significant differences in the compositions of five abundant fatty acid components of the oil obtained at different sampling times with SCCO 2 extraction and other extraction methods.
Critical review of supercritical carbon dioxide extraction of selected oil seeds
Acta periodica technologica, 2010
Supercritical carbon dioxide extraction, as a relatively new separation technique, can be used as a very efficient process in the production of essential oils and oleoresins from many of plant materials. The extracts from these materials are a good basis for the new pharmaceutical products and ingredients in the functional foods. This paper deals with supercritical carbon dioxide extraction of selected oil seeds which are of little interest in classical extraction in the food industry. In this article the process parameters in the supercritical carbon dioxide extraction, such as pressure, temperature, solvent flow rate, diameter of gound materials, and moisture of oil seed were presented for the following seeds: almond fruits, borage seed, corn germ, grape seed, evening primrose, hazelnut, linseed, pumpkin seed, walnut, and wheat germ. The values of investigated parameters in supercritical extraction were: pressure from 100 to 600 bar, temperature from 10 to 70oC, diameter of grindi...
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Experimental and modeling investigations of supercritical fluid CO2 extraction (SC-CO2) of Malbec grape seed oil (SUM) were performed at 200 and 400 bar, 40 and 60◦C with a CO2 flow rate of 0.26 kg/h. The model of broken and intact cells developed by Sovová adequately described SC-CO2 processes (AARD% 0.88 1.064). It was demonstrated that the extraction of type A was the most suited to apply. The solubility of SUM in SC-CO2 was estimated and modeled by the Chrastil model (AARD% 1.16 2.08). The highest value of the oil solubility was obtained at 400 bar and 60◦C. SUM extracted by SC-CO2 was found high quality, and rich of linoleic and oleic acid.
Journal of Agricultural Science and Technology
Tobacco (Nicotiana tabacum L.) is an important industrial crop and its seeds contain significant amounts of oil. The extraction of oil components using solvent at high pressure, or supercritical fluid (SCF), has received much attention. In the present study, statistical analyses showed that the average extraction yield of seed oil of five tobacco varieties using SFE was 9.33%, which was higher than Sonication (7.75%) and DGF (Deutsche Gesellschaft f_r Fettwissenschaft) standard method B-I5(87) (8.48%), but lower than Soxhlet (13.72%). Also, fatty acids profile of each extracted oil was determined by gas chromatography. Various saturated and unsaturated fatty acids such as lauric (
Food Chemistry
This work considered lycopene (lyc) amount and (all-E)-lyc:Z-lyc (E:Z) ratio as driving parameters of the tomato pomace (TP) supercritical CO 2 extraction (SFE_CO 2) performance. By testing lyc concentrations solubilization in tomato seed oil and E:Z ratios of 75:25, 59:39 and 25:75, full and partial equations (SE) were calculated. The application of mass balances to experimental TP_SFE_CO 2 highlighted an extraction yield of 84.6 % TP lyc, although the recovery into the extract was 48.4 % of the extracted lyc (lyc=1339 μg g-1 oil). The SE application to TP_SFE_CO 2 data confirmed that partial solubilization mainly depended on oil availability vs. lyc amount. Thus an improved TP_SFE_CO 2 was designed in which 703 g of exogenous tomato oil will be fluxed from the co-solvent tank: the new process will produce 884 g kg-1 d.m. of extract with an expected recovery of 99.3 % of the extractable lyc (lyc=502 μg g-1 oil).
Grape seed oil supercritical extraction kinetic and solubility data: Critical approach and modeling
The Journal of Supercritical Fluids, 2007
This paper focuses on supercritical CO 2 extraction of grape seed oil which has been analyzed both experimentally and theoretically. Extractions on crushed seeds at pressures varying in the range 280-550 bar and at a fixed temperature of 313 K were performed. From the initial linear portion of the experimental curves oil solubility data in the supercritical solvent have been obtained. By modeling the complete curves, the transport parameters regulating the oil mass transfer inside the seed particles have been calculated: the internal transport coefficient and the effective diffusivity.
Food Science and Technology, 2019
A supercritical fluid extraction (SC-CO 2) was used to extract high-quality oil from tomato skin by-products. The effects of pressure and extraction time on oil yield was investigated in the study. Lycopene and β-carotene content as well as p-coumaric acid, ferulic acid, caffeic acid, chlorogenic acid, vanillic acid, epicatechin, naringenin, catechin, quercetin and luteolin were estimated. The highest oil yield of 79.00% was obtained after 80 min with a pressure of 550 bar. The resulting oleoresin in carotenoids with lycopene and β-carotene content respectively of 0.86 and 1.5 mg/100 g, this oleoresin was found to be the richest. Naringenin was the most abundant flavonoid identified with a maximum content in oleoresin extracted at 550 bar (84.04 mg/kg DW) followed by caffeic acid (26.60 mg/kg DW). A moderate radical scavenging potential was further observed. Overall, results highlight that pressure is a key parameter for the extraction bioactive oleoresin from tomato skin by-products.
Supercritical carbon dioxide extraction is an important technique to extract medicinal ingredient from the biological source. The bottle gourd seed oil has several uses in pharmaceuticals such as skin therapy in the treatment of benign prostatic hyperplasia and in the cosmetic products such as beauty creams and soaps. The investigation was carried out to extract the functional oil which having very high medicinal value from bottle gourd seed using supercritical carbon dioxide. The results showed that the pressure and temperature had significant effect on the yield of bottle gourd seed oil. However, supercritical CO2 flow rate had no significant effect on the extraction yield but still high flow rate was essential to ensure optimum mass transfer rate. A 250 µm sized sample gave highest oil yield of about 34.60 per cent at 50 MPa pressure, 333.15 K temperature and flow rate of 15 g/m for 3 hours of extraction
Grasas y Aceites, 2013
Extraction of passion fruit seed oil using supercritical CO 2 : a study of mass transfer and rheological property by Bayesian inference The extraction of oil from passion fruit seeds using supercritical CO 2 was studied. Experimental data were obtained for extraction conducted at 15, 20 and 25 MPa; at temperatures of 40 and 50 °C with CO 2 flow rates of 1.5 and 3.0 mL min-1. An increase in the pressure, temperature and CO 2 flow rate increased the yield. The maximum extraction yield obtained was 18.5%. The mass transfer coefficients for passion fruit oil were found to be 8.496 3 10-5 s-1 at 25 MPa, 50 °C and 3 mL s-1 CO 2 flow rate. Dilatant fluid behavior was observed in all tests of the rheological study.