Supercritical extraction of sunflower oil: A central composite design for extraction variables

Rai, Amit; Mohanty, Bikash; Bhargava, Rama

doi:10.1016/j.foodchem.2015.07.070

Cited by 175 publications

(91 citation statements)

References 28 publications

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“…Most of them used scCO 2 laboratory-scale extraction installation (up to 2 L extraction vessel) to obtain oils from the most popular fruits, vegetables, or herbs, e.g., grapes, olives, and sunflowers (Yang et al 2011;Rai et al 2016;Aladić et al 2015;Milić et al 2015;Duba and Fiori 2015;Del Valle 2015;Da Porto et al 2012a, b), but only a few of them used supercritical CO 2 industry-scale extraction plant to obtain oils, especially from berry seeds .…”

Section: Introductionmentioning

confidence: 99%

Fatty Acids Analysis Using Gas Chromatography-Mass Spectrometer Detector (GC/MSD) - Method Validation Based on Berry Seed Extract Samples

2017

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Oily seed extracts were used as research samples in Analytical Laboratory of Raw Materials and Plant Products. Supercritical carbon dioxide extraction on an industrial scale was used to prepare extracts from raw plant materials, usually berry seeds: blackcurrant, raspberry, strawberry, and chokeberry. Gas chromatography analysis was performed on Agilent equipment with single quadrupole mass spectrometer detector and split/splitless injector. Fatty acids (FAs) were determined using indirect method, where they were converted to c o r r e s p o n d i n g m e t h y l e s t e r s ( FA M E s ) d u r i n g trimethylsulfonium hydroxide solution reaction. Comparing the mass spectrum and retention time peak, more than 30 compounds in different oily extracts were qualitatively identified. Quantification of individual fatty acids was based on two different methods. Firstly, it was based on the received peak area, and the results were normalized without correction factor. Secondly, the quantification was based on external calibration curve, for 34 identified fatty acids. The method was validated, and the results, e.g., linearity, precision, limit of detection (LOD), and limit of quantification (LOQ), were presented.

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Section: Introductionmentioning

confidence: 99%

Fatty Acids Analysis Using Gas Chromatography-Mass Spectrometer Detector (GC/MSD) - Method Validation Based on Berry Seed Extract Samples

2017

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“…El perfil de ácidos grasos del aceite de mora, principalmente la fracción insaturada es comparable con la composición de aceite de nuez (Martínez, et al, 2008), sacha inchi (Follegatti, 2007), ajonjolí (Botelho, et al, 2014), semillas de uva (Fiori, et al, 2014), soja, maíz (Briceño y Navas, 2005) y semillas de girasol (Rai, et al, 2016).…”

Section: Efecto De P Y T De Extracción Sobre La Composición De áCidosunclassified

Evaluación del Rendimiento, Composición y Actividad Antioxidante de Aceite de Semillas de Mora (Rubus glaucus) Extraído con CO2 Supercrítico

2017

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*Autor a quien debe ser dirigida la correspondenciaRecibido Abr. 26, 2016; Aceptado Jun. 15, 2016; Versión final Ago. 14, 2016, Publicado Feb. 2017 Resumen En este trabajo se estudió el efecto de los parámetros de extracción del aceite de semillas de mora (Rubus glaucus), utilizando CO2 supercrítico como solvente. Se evaluaron diferentes condiciones de presión y temperatura, que permitieron analizar el rendimiento, la composición y la actividad antioxidante del producto extraído. La identificación de los componentes del aceite se realizó a través de cromatografía de gases y la actividad antioxidante se determinó aplicando el método de ABTS. El rendimiento más alto fue 14.5%, obtenido bajo las mejores condiciones de trabajo: 350 bar de presión y 60°C de temperatura. El aceite proveniente de semillas de R. glaucus se caracteriza por contener un 96% de ácidos grasos insaturados, de los cuales el ácido linoléico es el más abundante (61.6%) y por la presencia de sustancias como β-sitosterol, 24-metil-cicloartanol, α-tocoferol, γ-tocoferol, δ-tocoferol, además de una capacidad antioxidante equivalente al trolox de 604 µmol/100 g aceite. Palabras clave: aceite; actividad antioxidante; CO2 supercrítico; mora; Rubus glaucus Evaluation of the Yield, Composition and Antioxidant Activity of Blackberry (Rubus glaucus) Seed Oil Extracted with Supercritical CO2 AbstractThe yield, composition and antioxidant activity of the extract product at different conditions of pressure and temperature were evaluated. The identification of oil components was performed using gas chromatography and the antioxidant activity was determined using the ABTS method. The highest yield obtained was 14.5% under the best working conditions: 350 bar of pressure and temperature of 60°C. The oil from R. glaucus seed contains 96% of unsaturated fatty acids, of which linoleic acid is the most abundant (61.6%) and the presence of substances such as β-sitosterol, 24-methyl-cycloartenol, α-tocopherol, γ-tocopherol, δ-tocopherol, and antioxidant trolox equivalent capacity of 604 µmol/100 g oil.

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“…This extraction of certain compounds from natural raw material with supercritical CO2 (ScCO2) has been thoroughly studied and several articles can be found in literature [4][5][6][7]. Sara Spinelli et al [4] studied the SFE with CO2 and ethanol as entrainer of phenolic compounds and flavonoids from brewer's spent grain (BSG).…”

Section: Introductionmentioning

confidence: 99%

“…They analysed the effect of temperature, pressure and entrainer concentration, obtaining that ScCO2 with a 60% of ethanol archives yields of 0.35 mg/g BSG and 0.22 mg/g BSG for phenolic compounds and flavonoids, respectively. Amit Rai et al [5] assessed the oil extraction from sunflower seeds varying temperature, pressure, particle diameter, flow rate and co-solvent or entrainer concentration (ethanol). Their result was that this extraction reach a yield of 54.37 wt% with a 5% of co-solvent.…”

Section: Introductionmentioning

confidence: 99%

Simulation of the supercritical CO2 extraction from natural matrices in packed bed columns: User-friendly simulator tool using Excel

Cabeza

Sobrón

García-Serna

et al. 2016

The Journal of Supercritical Fluids

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The aim of this work was to develop a user-friendly Excel interface to adjust the yields of an extraction column. Moreover, this program could simulate the dynamic concentration profiles inside the column, being a useful teaching tool. The model comprises non-stationary mass balances for the recovered compounds in both phases (solid and supercritical CO2). The model was tested by reproducing the extraction of two samples: sesame seeds and coffee beans (average deviations of 7.41% and 10.35%, respectively). These samples were selected to demonstrate the feasibility of reproducing processes whose mass transfer limitation is different. Thus, for the sesame seeds, the extraction process was controlled by both the external mass transfer and oil solubility, since the seeds were grinded. On the contrary, for coffee grains, the internal diffusion controls the extraction as the whole grain is required. Regarding solubility, a Henry's linear relation between solid and CO2 concentration was assumed.

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Supercritical extraction of sunflower oil: A central composite design for extraction variables

Cited by 175 publications

References 28 publications

Fatty Acids Analysis Using Gas Chromatography-Mass Spectrometer Detector (GC/MSD) - Method Validation Based on Berry Seed Extract Samples

Fatty Acids Analysis Using Gas Chromatography-Mass Spectrometer Detector (GC/MSD) - Method Validation Based on Berry Seed Extract Samples

Evaluación del Rendimiento, Composición y Actividad Antioxidante de Aceite de Semillas de Mora (Rubus glaucus) Extraído con CO2 Supercrítico

Simulation of the supercritical CO2 extraction from natural matrices in packed bed columns: User-friendly simulator tool using Excel

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