TY  - JOUR
AU  - Ivanović, Jasna
AU  - Knauer, Sandra
AU  - Fanovich, Alejandra
AU  - Milovanović, Stoja
AU  - Stamenić, Marko
AU  - Jaeger, Philip
AU  - Žižović, Irena
AU  - Eggers, Rudolf
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3407
AB  - The potential of supercritical carbon dioxide (scCO(2)) processing of polycaprolactone (Pa) and polycaprolactone-hydroxyapatite (PCL-HA) composites for obtaining functional porous scaffolds at moderate temperatures (35-40 degrees C) was analyzed and quantified. The effect of scCO(2) sorption kinetics on the swelling, foam morphology and thermal behavior of the PCL and PCL-HA composites was studied. Sorption isotherms were determined using magnetic suspension balance at 10-30 MPa and 35-40 degrees C. Influence of the pressure, HA amount (10-20%) and procedure for HA powder preparation on the sorption kinetics was discussed. Supercritical solvent impregnation (SSI) of PCL and PCL-HA with thymol was investigated as environmentally friendly way to produce functional scaffolds with controlled microstructure. Moderately high pressures (13-17 MPa) and 10% of HA were proven to be favorable for creation of the PCL scaffolds with satisfying foam microstructure (mean pore size similar to 200-300 mu m), filler distribution and thymol impregnation yields (12-18%). This was due to the satisfactory high scCO(2) solubility (0.25-0.30 g/g) and mass transfer rate (similar to 10(-10) m(2)/s) in the polymer phase as well as its great plasticizing effect (-Delta T-m = 26.4-27.4 degrees C). Higher saturation of the polymer phase with scCO(2) (0.30-0.55 g/g), filler amount (20%) and thymol solubility in scCO(2) ( gt 5.5 g/kg) at pressures above 20 MPa resulted in decreased mass transfer rate and SSI efficiency.
PB  - Elsevier, Amsterdam
T2  - Journal of Supercritical Fluids
T1  - Supercritical CO2 sorption kinetics and thymol impregnation of PCL and PCL-HA
EP  - 498
SP  - 486
VL  - 107
DO  - 10.1016/j.supflu.2015.07.001
ER  - 

@article{
author = "Ivanović, Jasna and Knauer, Sandra and Fanovich, Alejandra and Milovanović, Stoja and Stamenić, Marko and Jaeger, Philip and Žižović, Irena and Eggers, Rudolf",
year = "2016",
abstract = "The potential of supercritical carbon dioxide (scCO(2)) processing of polycaprolactone (Pa) and polycaprolactone-hydroxyapatite (PCL-HA) composites for obtaining functional porous scaffolds at moderate temperatures (35-40 degrees C) was analyzed and quantified. The effect of scCO(2) sorption kinetics on the swelling, foam morphology and thermal behavior of the PCL and PCL-HA composites was studied. Sorption isotherms were determined using magnetic suspension balance at 10-30 MPa and 35-40 degrees C. Influence of the pressure, HA amount (10-20%) and procedure for HA powder preparation on the sorption kinetics was discussed. Supercritical solvent impregnation (SSI) of PCL and PCL-HA with thymol was investigated as environmentally friendly way to produce functional scaffolds with controlled microstructure. Moderately high pressures (13-17 MPa) and 10% of HA were proven to be favorable for creation of the PCL scaffolds with satisfying foam microstructure (mean pore size similar to 200-300 mu m), filler distribution and thymol impregnation yields (12-18%). This was due to the satisfactory high scCO(2) solubility (0.25-0.30 g/g) and mass transfer rate (similar to 10(-10) m(2)/s) in the polymer phase as well as its great plasticizing effect (-Delta T-m = 26.4-27.4 degrees C). Higher saturation of the polymer phase with scCO(2) (0.30-0.55 g/g), filler amount (20%) and thymol solubility in scCO(2) ( gt 5.5 g/kg) at pressures above 20 MPa resulted in decreased mass transfer rate and SSI efficiency.",
publisher = "Elsevier, Amsterdam",
journal = "Journal of Supercritical Fluids",
title = "Supercritical CO2 sorption kinetics and thymol impregnation of PCL and PCL-HA",
pages = "498-486",
volume = "107",
doi = "10.1016/j.supflu.2015.07.001"
}

Ivanović, J., Knauer, S., Fanovich, A., Milovanović, S., Stamenić, M., Jaeger, P., Žižović, I.,& Eggers, R.. (2016). Supercritical CO2 sorption kinetics and thymol impregnation of PCL and PCL-HA. in Journal of Supercritical Fluids
Elsevier, Amsterdam., 107, 486-498.
https://doi.org/10.1016/j.supflu.2015.07.001

Ivanović J, Knauer S, Fanovich A, Milovanović S, Stamenić M, Jaeger P, Žižović I, Eggers R. Supercritical CO2 sorption kinetics and thymol impregnation of PCL and PCL-HA. in Journal of Supercritical Fluids. 2016;107:486-498.
doi:10.1016/j.supflu.2015.07.001 .

Ivanović, Jasna, Knauer, Sandra, Fanovich, Alejandra, Milovanović, Stoja, Stamenić, Marko, Jaeger, Philip, Žižović, Irena, Eggers, Rudolf, "Supercritical CO2 sorption kinetics and thymol impregnation of PCL and PCL-HA" in Journal of Supercritical Fluids, 107 (2016):486-498,
https://doi.org/10.1016/j.supflu.2015.07.001 . .

TY  - CHAP
AU  - Ivanović, Jasna
AU  - Milovanović, Stoja
AU  - Stamenić, Marko
AU  - Fanovich, Marija Alejandra
AU  - Jaeger, Philip
AU  - Žižović, Irena
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2566
AB  - Supercritical carbon dioxide (sc2) is known as a good solvent for a wide range of bioactive compounds from natural sources. Extraction of bioactive compounds from plant material using sc2 is a favorable technique for producing solvent-free extracts suitable for a wide range of applications in pharmaceutical, biomedical, cosmetic and food industries. Incorporation of drugs or other bioactive substances into polymeric matrices by conventional techniques is connected to some significant drawbacks (use of organic solvents, undesired substances reactions and/or degradation, low incorporation yields and heterogeneous dispersion). Supercritical solvent impregnation (SSI), and namely impregnation using sc2, has been proposed as an alternative methodology to overcome most of these problems. The main advantages of this technique are avoidance of organic solvents and possibility to work at relatively low operational temperatures and withhydrophobic drugs/substances which cannot be impregnated by aqueous solution/suspension soaking methods. Additionally, unique physical and transport properties of sc2 can be used simultaneously for impregnation of biopolymers andtailoring the chemistry and morphology thereof to obtain the desired microstructure of the final product. The present chapter is particularly aimed to demonstrate feasibility of incorporating of thyme extracts into different solid matrices by using a methodology that combines the supercritical fluid extraction (SFE) and SSI. Compared to both processes to be conducted separately, the advantage of using one single integrated process is basically to save energy and time by avoiding an intermediate decompression procedure. Representative commercial carriers with relevance for pharmaceutical, biomedical and food applications (cotton gauze, polypropylene non-woven fabrics, chitosan and starch gels, cellulose acetate and polycaprolactone) were used to test feasibility of thyme extract incorporation by the coupled SFE-SSI process. By setting the relevant parameters of each process separately, the challenge of this methodology aims to harmonize these parameters in order to increase the extraction and impregnation efficiencies as well as to obtain an even distribution of the solute within the solid matrix.
T2  - Handbook on Supercritical Fluids: Fundamentals, Properties and Applications
T1  - Application of an integrated supercritical extraction and impregnation process for incorporation of thyme extracts into different carriers
EP  - 280
SP  - 258
UR  - https://hdl.handle.net/21.15107/rcub_technorep_2566
ER  - 

@inbook{
author = "Ivanović, Jasna and Milovanović, Stoja and Stamenić, Marko and Fanovich, Marija Alejandra and Jaeger, Philip and Žižović, Irena",
year = "2014",
abstract = "Supercritical carbon dioxide (sc2) is known as a good solvent for a wide range of bioactive compounds from natural sources. Extraction of bioactive compounds from plant material using sc2 is a favorable technique for producing solvent-free extracts suitable for a wide range of applications in pharmaceutical, biomedical, cosmetic and food industries. Incorporation of drugs or other bioactive substances into polymeric matrices by conventional techniques is connected to some significant drawbacks (use of organic solvents, undesired substances reactions and/or degradation, low incorporation yields and heterogeneous dispersion). Supercritical solvent impregnation (SSI), and namely impregnation using sc2, has been proposed as an alternative methodology to overcome most of these problems. The main advantages of this technique are avoidance of organic solvents and possibility to work at relatively low operational temperatures and withhydrophobic drugs/substances which cannot be impregnated by aqueous solution/suspension soaking methods. Additionally, unique physical and transport properties of sc2 can be used simultaneously for impregnation of biopolymers andtailoring the chemistry and morphology thereof to obtain the desired microstructure of the final product. The present chapter is particularly aimed to demonstrate feasibility of incorporating of thyme extracts into different solid matrices by using a methodology that combines the supercritical fluid extraction (SFE) and SSI. Compared to both processes to be conducted separately, the advantage of using one single integrated process is basically to save energy and time by avoiding an intermediate decompression procedure. Representative commercial carriers with relevance for pharmaceutical, biomedical and food applications (cotton gauze, polypropylene non-woven fabrics, chitosan and starch gels, cellulose acetate and polycaprolactone) were used to test feasibility of thyme extract incorporation by the coupled SFE-SSI process. By setting the relevant parameters of each process separately, the challenge of this methodology aims to harmonize these parameters in order to increase the extraction and impregnation efficiencies as well as to obtain an even distribution of the solute within the solid matrix.",
journal = "Handbook on Supercritical Fluids: Fundamentals, Properties and Applications",
booktitle = "Application of an integrated supercritical extraction and impregnation process for incorporation of thyme extracts into different carriers",
pages = "280-258",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2566"
}

Ivanović, J., Milovanović, S., Stamenić, M., Fanovich, M. A., Jaeger, P.,& Žižović, I.. (2014). Application of an integrated supercritical extraction and impregnation process for incorporation of thyme extracts into different carriers. in Handbook on Supercritical Fluids: Fundamentals, Properties and Applications, 258-280.
https://hdl.handle.net/21.15107/rcub_technorep_2566

Ivanović J, Milovanović S, Stamenić M, Fanovich MA, Jaeger P, Žižović I. Application of an integrated supercritical extraction and impregnation process for incorporation of thyme extracts into different carriers. in Handbook on Supercritical Fluids: Fundamentals, Properties and Applications. 2014;:258-280.
https://hdl.handle.net/21.15107/rcub_technorep_2566 .

Ivanović, Jasna, Milovanović, Stoja, Stamenić, Marko, Fanovich, Marija Alejandra, Jaeger, Philip, Žižović, Irena, "Application of an integrated supercritical extraction and impregnation process for incorporation of thyme extracts into different carriers" in Handbook on Supercritical Fluids: Fundamentals, Properties and Applications (2014):258-280,
https://hdl.handle.net/21.15107/rcub_technorep_2566 .

TY  - JOUR
AU  - Ivanović, Jasna
AU  - Meyer, Florian
AU  - Stamenić, Marko
AU  - Jaeger, Philip
AU  - Žižović, Irena
AU  - Eggers, Rudolf
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2665
AB  - A proper method was to be developed for the pretreatment of different types of natural materials in order to increase the efficiency of supercritical fluid extraction (SFE) regarding yield and active substance content. The effects of different mechanical pretreatments were investigated: flaking, impact plus shearing, and cutting plus grinding. Additionally, the influence of intermediate rapid gas decompression was studied. Significant effects of the applied pretreatments on the yield (increase by up to 1350 %) were shown for SFE of selected oilseeds, artemisia aerial parts, and the lichen Usnea barbata. Flaking was the most effective pretreatment for increasing the yield of SFE of fennel seeds, artemisia aerial parts, and Usnea lichen, while impact plus shearing was optimal for processing amaranth, milk thistle, and oat seeds. The use of defined optimal pretreatments led to notable increases in the contents of usnic acid (50 %) and artemisinin (300 %).
PB  - Wiley-VCH Verlag Gmbh, Weinheim
T2  - Chemical Engineering & Technology
T1  - Pretreatment of Natural Materials Used for Supercritical Fluid Extraction of Commercial Phytopharmaceuticals
EP  - 1611
IS  - 9
SP  - 1606
VL  - 37
DO  - 10.1002/ceat.201300715
ER  - 

@article{
author = "Ivanović, Jasna and Meyer, Florian and Stamenić, Marko and Jaeger, Philip and Žižović, Irena and Eggers, Rudolf",
year = "2014",
abstract = "A proper method was to be developed for the pretreatment of different types of natural materials in order to increase the efficiency of supercritical fluid extraction (SFE) regarding yield and active substance content. The effects of different mechanical pretreatments were investigated: flaking, impact plus shearing, and cutting plus grinding. Additionally, the influence of intermediate rapid gas decompression was studied. Significant effects of the applied pretreatments on the yield (increase by up to 1350 %) were shown for SFE of selected oilseeds, artemisia aerial parts, and the lichen Usnea barbata. Flaking was the most effective pretreatment for increasing the yield of SFE of fennel seeds, artemisia aerial parts, and Usnea lichen, while impact plus shearing was optimal for processing amaranth, milk thistle, and oat seeds. The use of defined optimal pretreatments led to notable increases in the contents of usnic acid (50 %) and artemisinin (300 %).",
publisher = "Wiley-VCH Verlag Gmbh, Weinheim",
journal = "Chemical Engineering & Technology",
title = "Pretreatment of Natural Materials Used for Supercritical Fluid Extraction of Commercial Phytopharmaceuticals",
pages = "1611-1606",
number = "9",
volume = "37",
doi = "10.1002/ceat.201300715"
}

Ivanović, J., Meyer, F., Stamenić, M., Jaeger, P., Žižović, I.,& Eggers, R.. (2014). Pretreatment of Natural Materials Used for Supercritical Fluid Extraction of Commercial Phytopharmaceuticals. in Chemical Engineering & Technology
Wiley-VCH Verlag Gmbh, Weinheim., 37(9), 1606-1611.
https://doi.org/10.1002/ceat.201300715

Ivanović J, Meyer F, Stamenić M, Jaeger P, Žižović I, Eggers R. Pretreatment of Natural Materials Used for Supercritical Fluid Extraction of Commercial Phytopharmaceuticals. in Chemical Engineering & Technology. 2014;37(9):1606-1611.
doi:10.1002/ceat.201300715 .

Ivanović, Jasna, Meyer, Florian, Stamenić, Marko, Jaeger, Philip, Žižović, Irena, Eggers, Rudolf, "Pretreatment of Natural Materials Used for Supercritical Fluid Extraction of Commercial Phytopharmaceuticals" in Chemical Engineering & Technology, 37, no. 9 (2014):1606-1611,
https://doi.org/10.1002/ceat.201300715 . .

TY  - JOUR
AU  - Ivanović, Jasna
AU  - Meyer, Florian
AU  - Mišić, Dušan
AU  - Ašanin, Jelena
AU  - Jaeger, Philip
AU  - Žižović, Irena
AU  - Eggers, Rudolf
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5700
AB  - Multiplication and spreading of multiresistant pathogenic bacteria that cause fatal infections in humans and animals have boosted research on implementation of newer technologies for producing natural substances with strong antibacterial activities. In this study, SFE from lichen Usnea barbata was investigated for different pre-treatment methods with respect to extracts yield, usnic acid recovery and antibacterial activity against more than thirty methicillin resistant staphylococci strains. Extraction of U. barbata with subcritical carbon dioxide was studied as well. Extraction yield, usnic acid content and antibacterial activity of the extracts were strongly affected by the pre-treatment method. Intensive pre-treatment methods such as flaking and cutting + grinding caused a considerable comminution of the lichen thallus and enabled high extraction yields. On the other hand, mild pre-treatment of the lichen such as impact + shearing enabled isolation of extracts with lower MIC values. Experimental results indicated that extraction with liquid carbon dioxide at 30 MPa and 25 degrees C was the most favorable condition at which a satisfactory high extraction yield was obtained (2.08%). Extract isolated with liquid carbon dioxide had a high usnic acid content in the extract (632 g/kg) and a very strong antibacterial activity (average MIC of 19.11 mu g/mL). Antibacterial activity of all the extracts against tested strains was comparable to the pure usnic acid or even stronger. This study indicated a potential use of the supercritical extracts of U. barbata in pharmaceutical formulations for treatment of infections caused by staphylococci.
PB  - Elsevier, Amsterdam
T2  - Journal of Supercritical Fluids
T1  - Influence of different pre-treatment methods on isolation of extracts with strong antibacterial activity from lichen Usnea barbata using carbon dioxide as a solvent
EP  - 9
SP  - 1
VL  - 76
DO  - 10.1016/j.supflu.2013.01.005
ER  - 

@article{
author = "Ivanović, Jasna and Meyer, Florian and Mišić, Dušan and Ašanin, Jelena and Jaeger, Philip and Žižović, Irena and Eggers, Rudolf",
year = "2013",
abstract = "Multiplication and spreading of multiresistant pathogenic bacteria that cause fatal infections in humans and animals have boosted research on implementation of newer technologies for producing natural substances with strong antibacterial activities. In this study, SFE from lichen Usnea barbata was investigated for different pre-treatment methods with respect to extracts yield, usnic acid recovery and antibacterial activity against more than thirty methicillin resistant staphylococci strains. Extraction of U. barbata with subcritical carbon dioxide was studied as well. Extraction yield, usnic acid content and antibacterial activity of the extracts were strongly affected by the pre-treatment method. Intensive pre-treatment methods such as flaking and cutting + grinding caused a considerable comminution of the lichen thallus and enabled high extraction yields. On the other hand, mild pre-treatment of the lichen such as impact + shearing enabled isolation of extracts with lower MIC values. Experimental results indicated that extraction with liquid carbon dioxide at 30 MPa and 25 degrees C was the most favorable condition at which a satisfactory high extraction yield was obtained (2.08%). Extract isolated with liquid carbon dioxide had a high usnic acid content in the extract (632 g/kg) and a very strong antibacterial activity (average MIC of 19.11 mu g/mL). Antibacterial activity of all the extracts against tested strains was comparable to the pure usnic acid or even stronger. This study indicated a potential use of the supercritical extracts of U. barbata in pharmaceutical formulations for treatment of infections caused by staphylococci.",
publisher = "Elsevier, Amsterdam",
journal = "Journal of Supercritical Fluids",
title = "Influence of different pre-treatment methods on isolation of extracts with strong antibacterial activity from lichen Usnea barbata using carbon dioxide as a solvent",
pages = "9-1",
volume = "76",
doi = "10.1016/j.supflu.2013.01.005"
}

Ivanović, J., Meyer, F., Mišić, D., Ašanin, J., Jaeger, P., Žižović, I.,& Eggers, R.. (2013). Influence of different pre-treatment methods on isolation of extracts with strong antibacterial activity from lichen Usnea barbata using carbon dioxide as a solvent. in Journal of Supercritical Fluids
Elsevier, Amsterdam., 76, 1-9.
https://doi.org/10.1016/j.supflu.2013.01.005

Ivanović J, Meyer F, Mišić D, Ašanin J, Jaeger P, Žižović I, Eggers R. Influence of different pre-treatment methods on isolation of extracts with strong antibacterial activity from lichen Usnea barbata using carbon dioxide as a solvent. in Journal of Supercritical Fluids. 2013;76:1-9.
doi:10.1016/j.supflu.2013.01.005 .

Ivanović, Jasna, Meyer, Florian, Mišić, Dušan, Ašanin, Jelena, Jaeger, Philip, Žižović, Irena, Eggers, Rudolf, "Influence of different pre-treatment methods on isolation of extracts with strong antibacterial activity from lichen Usnea barbata using carbon dioxide as a solvent" in Journal of Supercritical Fluids, 76 (2013):1-9,
https://doi.org/10.1016/j.supflu.2013.01.005 . .

TY  - JOUR
AU  - Meyer, Florian
AU  - Jaeger, Philip
AU  - Eggers, Rudolf
AU  - Stamenić, Marko
AU  - Milovanović, Stoja
AU  - Žižović, Irena
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2145
AB  - Pre-treatment of natural materials prior to their extraction strongly influences the efficiency of the process. Therefore, proper selection of pre-treatment method enables intensification of extraction process. Within this study "rapid gas decompression" (RGD) was investigated as a pretreatment method using carbon dioxide as working fluid. Oilseeds (rapeseed and sunflower seed), St. Johns Wort and Hop were studied as valuable raw materials for industrial application of supercritical fluid extraction. The sorption behaviour of carbon dioxide within the natural materials was examined gravimetrically under high pressure conditions between 5 and 26 MPa and at temperatures between 40 and 60 degrees C. It was observed that considerable amounts of carbon dioxide sorb within natural materials and a combination of dissolution within the solute phase and adsorption on the plant matrix occurs. RGD was used as a pre-treatment method prior to the extraction or as an intermediate treatment during the extraction process. The results showed that effect of RGD on extraction was the most pronounced for St. Johns Wort but also the extraction kinetics of the other materials were affected. Probable mechanisms occurring during RGD are discussed.
PB  - Elsevier Science Sa, Lausanne
T2  - Chemical Engineering and Processing-Process Intensification
T1  - Effect of CO2 pre-treatment on scCO(2) extraction of natural material
EP  - 45
SP  - 37
VL  - 56
DO  - 10.1016/j.cep.2012.02.003
ER  - 

@article{
author = "Meyer, Florian and Jaeger, Philip and Eggers, Rudolf and Stamenić, Marko and Milovanović, Stoja and Žižović, Irena",
year = "2012",
abstract = "Pre-treatment of natural materials prior to their extraction strongly influences the efficiency of the process. Therefore, proper selection of pre-treatment method enables intensification of extraction process. Within this study "rapid gas decompression" (RGD) was investigated as a pretreatment method using carbon dioxide as working fluid. Oilseeds (rapeseed and sunflower seed), St. Johns Wort and Hop were studied as valuable raw materials for industrial application of supercritical fluid extraction. The sorption behaviour of carbon dioxide within the natural materials was examined gravimetrically under high pressure conditions between 5 and 26 MPa and at temperatures between 40 and 60 degrees C. It was observed that considerable amounts of carbon dioxide sorb within natural materials and a combination of dissolution within the solute phase and adsorption on the plant matrix occurs. RGD was used as a pre-treatment method prior to the extraction or as an intermediate treatment during the extraction process. The results showed that effect of RGD on extraction was the most pronounced for St. Johns Wort but also the extraction kinetics of the other materials were affected. Probable mechanisms occurring during RGD are discussed.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Chemical Engineering and Processing-Process Intensification",
title = "Effect of CO2 pre-treatment on scCO(2) extraction of natural material",
pages = "45-37",
volume = "56",
doi = "10.1016/j.cep.2012.02.003"
}

Meyer, F., Jaeger, P., Eggers, R., Stamenić, M., Milovanović, S.,& Žižović, I.. (2012). Effect of CO2 pre-treatment on scCO(2) extraction of natural material. in Chemical Engineering and Processing-Process Intensification
Elsevier Science Sa, Lausanne., 56, 37-45.
https://doi.org/10.1016/j.cep.2012.02.003

Meyer F, Jaeger P, Eggers R, Stamenić M, Milovanović S, Žižović I. Effect of CO2 pre-treatment on scCO(2) extraction of natural material. in Chemical Engineering and Processing-Process Intensification. 2012;56:37-45.
doi:10.1016/j.cep.2012.02.003 .

Meyer, Florian, Jaeger, Philip, Eggers, Rudolf, Stamenić, Marko, Milovanović, Stoja, Žižović, Irena, "Effect of CO2 pre-treatment on scCO(2) extraction of natural material" in Chemical Engineering and Processing-Process Intensification, 56 (2012):37-45,
https://doi.org/10.1016/j.cep.2012.02.003 . .

TY  - JOUR
AU  - Stamenić, Marko
AU  - Žižović, Irena
AU  - Eggers, Rudolf
AU  - Jaeger, Philip
AU  - Heinrich, H.
AU  - Roj, E.
AU  - Ivanović, Jasna
AU  - Skala, Dejan
PY  - 2010
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1675
AB  - Swelling of plant material belonging to several plant families and the influence of swelling on supercritical fluid extraction process were investigated in this study. While swelling of Lamiaceae family species as well as hop cones and pellets occurred during the exposure of plant material to supercritical carbon dioxide, swelling of valerian root and ginger rhizome happened after the decompression step. Optimal pretreatment of herbaceous matrix which will enable commencement of continuous extraction from already swollen plant material was defined on the basis of swelling test results. Experimental results were modeled and energy savings due to the optimal processing on the laboratory scale were calculated. Sorption of carbon dioxide into the hop pellet was measured and the diffusion coefficient in the solid phase was determined. Obtained results indicated that the effective diffusion coefficient in the hop pellet was increased by one order of magnitude due to swelling.
PB  - Elsevier, Amsterdam
T2  - Journal of Supercritical Fluids
T1  - Swelling of plant material in supercritical carbon dioxide
EP  - 133
IS  - 1
SP  - 125
VL  - 52
DO  - 10.1016/j.supflu.2009.12.004
ER  - 

@article{
author = "Stamenić, Marko and Žižović, Irena and Eggers, Rudolf and Jaeger, Philip and Heinrich, H. and Roj, E. and Ivanović, Jasna and Skala, Dejan",
year = "2010",
abstract = "Swelling of plant material belonging to several plant families and the influence of swelling on supercritical fluid extraction process were investigated in this study. While swelling of Lamiaceae family species as well as hop cones and pellets occurred during the exposure of plant material to supercritical carbon dioxide, swelling of valerian root and ginger rhizome happened after the decompression step. Optimal pretreatment of herbaceous matrix which will enable commencement of continuous extraction from already swollen plant material was defined on the basis of swelling test results. Experimental results were modeled and energy savings due to the optimal processing on the laboratory scale were calculated. Sorption of carbon dioxide into the hop pellet was measured and the diffusion coefficient in the solid phase was determined. Obtained results indicated that the effective diffusion coefficient in the hop pellet was increased by one order of magnitude due to swelling.",
publisher = "Elsevier, Amsterdam",
journal = "Journal of Supercritical Fluids",
title = "Swelling of plant material in supercritical carbon dioxide",
pages = "133-125",
number = "1",
volume = "52",
doi = "10.1016/j.supflu.2009.12.004"
}

Stamenić, M., Žižović, I., Eggers, R., Jaeger, P., Heinrich, H., Roj, E., Ivanović, J.,& Skala, D.. (2010). Swelling of plant material in supercritical carbon dioxide. in Journal of Supercritical Fluids
Elsevier, Amsterdam., 52(1), 125-133.
https://doi.org/10.1016/j.supflu.2009.12.004

Stamenić M, Žižović I, Eggers R, Jaeger P, Heinrich H, Roj E, Ivanović J, Skala D. Swelling of plant material in supercritical carbon dioxide. in Journal of Supercritical Fluids. 2010;52(1):125-133.
doi:10.1016/j.supflu.2009.12.004 .

Stamenić, Marko, Žižović, Irena, Eggers, Rudolf, Jaeger, Philip, Heinrich, H., Roj, E., Ivanović, Jasna, Skala, Dejan, "Swelling of plant material in supercritical carbon dioxide" in Journal of Supercritical Fluids, 52, no. 1 (2010):125-133,
https://doi.org/10.1016/j.supflu.2009.12.004 . .