Swelling of plant material in supercritical carbon dioxide

Stamenić, Marko; Žižović, Irena; Eggers, R.; Jaeger, Philip; Heinrich, H.; Rój, Edward; Ivanović, Jasna; Skala, Dejan

doi:10.1016/j.supflu.2009.12.004

Cited by 49 publications

(33 citation statements)

References 12 publications

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“…In a significant number of publications about scCO 2 extraction of raw plants or their parts, we can find that several authors described matrix effects (Aladić et al 2015;Araus et al 2009;Azmir et al 2013), and others discuss optimized reaction parameters in the production of plant oils using, for example, response surface methodology (Rój and Skowroński 2006a, b;Azmir et al 2013;Stamenic et al 2010;Watros et al 2013;Da Porto et al 2012a, b;Ara et al 2015). 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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“…Duan and Sun report predictions within 7% of experimental values for this method. Polysaccharrides already react in hot liquid water and the addition of CO 2 acts as an acid catalyst (Peterson et al, 2008), while the supercritical CO 2 phase offers high diffusivities and was proven to have a swelling effect on plant material (Stamenic et al, 2009). At atmospheric conditions, CO 2 is immiscible in water allowing it to be easily separated and recycled.…”

Section: Introductionmentioning

confidence: 99%

High‐solids biphasic CO₂–H₂O pretreatment of lignocellulosic biomass

Luterbacher

Tester

Walker

2010

Biotech & Bioengineering

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A high pressure (200 bar) CO(2)-H(2)O process was developed for pretreating lignocellulosic biomass at high-solid contents, while minimizing chemical inputs. Hardwood was pretreated at 20 and 40 (wt.%) solids. Switchgrass, corn stover, big bluestem, and mixed perennial grasses (a co-culture of big bluestem and switchgrass) were pretreated at 40 (wt.%) solids. Operating temperatures ranged from 150 to 250 degrees C, and residence times from 20 s to 60 min. At these conditions a biphasic mixture of an H(2)O-rich liquid (hydrothermal) phase and a CO(2)-rich supercritical phase coexist. Following pretreatment, samples were then enzymatically hydrolyzed. Total yields, defined as the fraction of the theoretical maximum, were determined for glucose, hemicellulose sugars, and two degradation products: furfural and 5-hydroxymethylfurfural. Response surfaces of yield as a function of temperature and residence time were compared for different moisture contents and biomass species. Pretreatment at 170 degrees C for 60 min gave glucose yields of 77%, 73%, and 68% for 20 and 40 (wt.%) solids mixed hardwood and mixed perennial grasses, respectively. Pretreatment at 160 degrees C for 60 min gave glucan to glucose yields of 81% for switchgrass and 85% for corn stover.

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“…Some skepticism should be added here as it is known that plant material can swell when in contact with scCO2 [54].…”

Section: Resultsmentioning

confidence: 99%

Method development in inverse modeling applied to supercritical fluid extraction of lipids

Abrahamsson

Andersson

Nilsson

et al. 2016

The Journal of Supercritical Fluids

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Modeling of the supercritical fluid extraction of solid materials is an important aspect in order to understand and predict the process. A comparison of two empirical models, two semi-empirical models and two mechanistic models is performed using calibration of single experiments. It is concluded that the best fit is obtained using a simple empirical expression. Furthermore, single calibrations did not generate reliable parameters with physical meaning and a methodology is proposed for inverse modeling with complete calibration using several experiments. The experimental dataset contained 29 extractions of lipids from crushed linseeds with varying temperatures, pressures and flow rates.A general rate model and a proposed extension of the hot ball model were evaluated for this purpose. The methodology includes data acquisition, model structure estimation, model calibration and a cross-validation. In general, it was found that the solubility model of Sovová outperformed the other evaluated correlations, and for the general rate model the Toth partition isotherm was also found in the top model structures. However, no generalization could be made regarding the correlations describing the Nernst diffusion layer and diffusivity. AbbreviationsBPR, back-pressure regulator; CV, cross-validation; DLT, diffusion-layer theory; DOE, design of experiments; EHBM, extended hot ball model; ELSD, evaporative light scattering detector; GA, genetic algorithm; GRM, general rate model; HBM, hot ball model; LHS, Latin hypercube sampling; ODE, ordinary differential equation; PSO, particle swarm optimization; RMSE, root mean square error; RMSEC, root mean square error of calibration; RMSECV, root mean square error of cross-validation; scCO2, supercritical carbon dioxide; SFE, supercritical fluid extraction

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Swelling of plant material in supercritical carbon dioxide

Cited by 49 publications

References 12 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

High‐solids biphasic CO₂–H₂O pretreatment of lignocellulosic biomass

Method development in inverse modeling applied to supercritical fluid extraction of lipids

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Swelling of plant material in supercritical carbon dioxide

Cited by 49 publications

References 12 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

High‐solids biphasic CO2–H2O pretreatment of lignocellulosic biomass

Method development in inverse modeling applied to supercritical fluid extraction of lipids

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High‐solids biphasic CO₂–H₂O pretreatment of lignocellulosic biomass