TY  - JOUR
AU  - Dali, Imen
AU  - Aydi, Abdelkarim
AU  - Stamenić, Marko
AU  - Kolsi, Lioua
AU  - Ghachem, Kaouther
AU  - Zizovic, Irena
AU  - Manef, Abderrabba
AU  - Delgado, Daniel R.
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4977
AB  - The olive growing in Tunisia has an economic dominance and agricultural importance. However, the huge extraction of olive oil generates a large quantity of olive mill wastewater (OMW), which is discharged to the surroundings. The highly polluting potential (organic load) of OMW threatens the environment and requires an urgent solution. Supercritical fluid extraction (SFE) is a green extraction method that can be applied to purify OMW and, at the same time, to isolate a high quality oil from this wastewater. In order to explore and to valorize the compositions of Olive mill wastewater (OMW), extraction in different solvents (supercritical CO2, hexane) was carried out and chemical composition of the extracted oils were established by GC-FID. The Tunisia OMW were collected from two different zones namely Sousse and Sfax. In this work, we have investigated the effects pressure (P) and temperature (T) on the yield and the quality of oil. The suitable conditions for the extraction of oil from lyophilized OMW by Super-critical carbon dioxide (SC-CO2) were found to be the pressure of 30 MPa and the temperature of 60 degrees C. In order to simulate the process, the model of broken and intact cells (Sovova's model) was applied. The model well represented the experimental data.
T2  - Alexandria Engineering Journal
T1  - Extraction of lyophilized olive mill wastewater using supercritical CO2 processes
EP  - 246
IS  - 1
SP  - 237
VL  - 61
DO  - 10.1016/j.aej.2021.04.0881110-0168
ER  - 

@article{
author = "Dali, Imen and Aydi, Abdelkarim and Stamenić, Marko and Kolsi, Lioua and Ghachem, Kaouther and Zizovic, Irena and Manef, Abderrabba and Delgado, Daniel R.",
year = "2022",
abstract = "The olive growing in Tunisia has an economic dominance and agricultural importance. However, the huge extraction of olive oil generates a large quantity of olive mill wastewater (OMW), which is discharged to the surroundings. The highly polluting potential (organic load) of OMW threatens the environment and requires an urgent solution. Supercritical fluid extraction (SFE) is a green extraction method that can be applied to purify OMW and, at the same time, to isolate a high quality oil from this wastewater. In order to explore and to valorize the compositions of Olive mill wastewater (OMW), extraction in different solvents (supercritical CO2, hexane) was carried out and chemical composition of the extracted oils were established by GC-FID. The Tunisia OMW were collected from two different zones namely Sousse and Sfax. In this work, we have investigated the effects pressure (P) and temperature (T) on the yield and the quality of oil. The suitable conditions for the extraction of oil from lyophilized OMW by Super-critical carbon dioxide (SC-CO2) were found to be the pressure of 30 MPa and the temperature of 60 degrees C. In order to simulate the process, the model of broken and intact cells (Sovova's model) was applied. The model well represented the experimental data.",
journal = "Alexandria Engineering Journal",
title = "Extraction of lyophilized olive mill wastewater using supercritical CO2 processes",
pages = "246-237",
number = "1",
volume = "61",
doi = "10.1016/j.aej.2021.04.0881110-0168"
}

Dali, I., Aydi, A., Stamenić, M., Kolsi, L., Ghachem, K., Zizovic, I., Manef, A.,& Delgado, D. R.. (2022). Extraction of lyophilized olive mill wastewater using supercritical CO2 processes. in Alexandria Engineering Journal, 61(1), 237-246.
https://doi.org/10.1016/j.aej.2021.04.0881110-0168

Dali I, Aydi A, Stamenić M, Kolsi L, Ghachem K, Zizovic I, Manef A, Delgado DR. Extraction of lyophilized olive mill wastewater using supercritical CO2 processes. in Alexandria Engineering Journal. 2022;61(1):237-246.
doi:10.1016/j.aej.2021.04.0881110-0168 .

Dali, Imen, Aydi, Abdelkarim, Stamenić, Marko, Kolsi, Lioua, Ghachem, Kaouther, Zizovic, Irena, Manef, Abderrabba, Delgado, Daniel R., "Extraction of lyophilized olive mill wastewater using supercritical CO2 processes" in Alexandria Engineering Journal, 61, no. 1 (2022):237-246,
https://doi.org/10.1016/j.aej.2021.04.0881110-0168 . .

TY  - JOUR
AU  - Maksimović, Svetolik
AU  - Tadic, Vanja
AU  - Zvezdanovic, Jelena
AU  - Zizovic, Irena
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4904
AB  - Helichrysum italicum (Roth) G. Don fil., Asteraceae, possesses numerous secondary plant metabolites with a wide range of biological activities. Yet, data on the potential of supercritical fluid extraction (SFE) in their isolation are scarce. This study provides analyses of the chemical profiles of extracts obtained by SFE with or without ethanol as a cosolvent using GC-FID, GC-MS, HPLC, and UHPLC-MS techniques. Among the compounds with proven biological activity identified, the presence of arzanol was confirmed. In the next step, the integrated process of supercritical fluid extraction and impregnation was applied to deliver active compounds to cotton gauze and polypropylene fabric for possible topical applications. The analytical procedures results showed a considerable affinity of both textile materials for incorporating active components present in the H. italicum. The study indicated the high-pressure techniques applied as very efficient in the isolation of bioactive components from H. italicum and their adsorption on selected carriers.
T2  - Journal of Supercritical Fluids
T1  - Utilization of supercritical CO2 in bioactive principles isolation from Helichrysum italicum and their adsorption on selected fabrics
VL  - 171
DO  - 10.1016/j.supflu.2021.105197
ER  - 

@article{
author = "Maksimović, Svetolik and Tadic, Vanja and Zvezdanovic, Jelena and Zizovic, Irena",
year = "2021",
abstract = "Helichrysum italicum (Roth) G. Don fil., Asteraceae, possesses numerous secondary plant metabolites with a wide range of biological activities. Yet, data on the potential of supercritical fluid extraction (SFE) in their isolation are scarce. This study provides analyses of the chemical profiles of extracts obtained by SFE with or without ethanol as a cosolvent using GC-FID, GC-MS, HPLC, and UHPLC-MS techniques. Among the compounds with proven biological activity identified, the presence of arzanol was confirmed. In the next step, the integrated process of supercritical fluid extraction and impregnation was applied to deliver active compounds to cotton gauze and polypropylene fabric for possible topical applications. The analytical procedures results showed a considerable affinity of both textile materials for incorporating active components present in the H. italicum. The study indicated the high-pressure techniques applied as very efficient in the isolation of bioactive components from H. italicum and their adsorption on selected carriers.",
journal = "Journal of Supercritical Fluids",
title = "Utilization of supercritical CO2 in bioactive principles isolation from Helichrysum italicum and their adsorption on selected fabrics",
volume = "171",
doi = "10.1016/j.supflu.2021.105197"
}

Maksimović, S., Tadic, V., Zvezdanovic, J.,& Zizovic, I.. (2021). Utilization of supercritical CO2 in bioactive principles isolation from Helichrysum italicum and their adsorption on selected fabrics. in Journal of Supercritical Fluids, 171.
https://doi.org/10.1016/j.supflu.2021.105197

Maksimović S, Tadic V, Zvezdanovic J, Zizovic I. Utilization of supercritical CO2 in bioactive principles isolation from Helichrysum italicum and their adsorption on selected fabrics. in Journal of Supercritical Fluids. 2021;171.
doi:10.1016/j.supflu.2021.105197 .

Maksimović, Svetolik, Tadic, Vanja, Zvezdanovic, Jelena, Zizovic, Irena, "Utilization of supercritical CO2 in bioactive principles isolation from Helichrysum italicum and their adsorption on selected fabrics" in Journal of Supercritical Fluids, 171 (2021),
https://doi.org/10.1016/j.supflu.2021.105197 . .