Đilas, Sonja

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  • Đilas, Sonja (3)
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Author's Bibliography

Free-radical scavenging activity and antibacterial impact of Greek oregano isolates obtained by SFE

Stamenić, Marko; Vulić, Jelena; Đilas, Sonja; Mišić, Dušan; Tadić, Vanja; Petrović, Slobodan; Žižović, Irena

(Elsevier Sci Ltd, Oxford, 2014)

TY  - JOUR
AU  - Stamenić, Marko
AU  - Vulić, Jelena
AU  - Đilas, Sonja
AU  - Mišić, Dušan
AU  - Tadić, Vanja
AU  - Petrović, Slobodan
AU  - Žižović, Irena
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2655
AB  - The antioxidant and antibacterial properties of Greek oregano extracts obtained by fractional supercritical fluid extraction (SFE) with carbon dioxide were investigated and compared with the properties of essential oil obtained by hydrodistillation. According to DPPH., hydroxyl radical and superoxide anion radical scavenging activity assays, the supercritical extracts expressed stronger antioxidant activity comparing to the essential oil. The most effective was the supercritical extract obtained by fractional extraction at 30 MPa and 100 degrees C after the volatile fraction had been extracted at lower pressure. At the same time this extract showed strong antibacterial activity against staphylococci, including MASA strain, but did not affect Escherichia coli of normal intestinal flora. The essential oil obtained by hydrodistillation showed stronger antibacterial activity against E. coli, Salmonella and Klebsiella pneumoniae, comparing to the supercritical extracts but at the same affected the normal gut flora.
PB  - Elsevier Sci Ltd, Oxford
T2  - Food Chemistry
T1  - Free-radical scavenging activity and antibacterial impact of Greek oregano isolates obtained by SFE
EP  - 315
SP  - 307
VL  - 165
DO  - 10.1016/j.foodchem.2014.05.091
ER  - 
@article{
author = "Stamenić, Marko and Vulić, Jelena and Đilas, Sonja and Mišić, Dušan and Tadić, Vanja and Petrović, Slobodan and Žižović, Irena",
year = "2014",
abstract = "The antioxidant and antibacterial properties of Greek oregano extracts obtained by fractional supercritical fluid extraction (SFE) with carbon dioxide were investigated and compared with the properties of essential oil obtained by hydrodistillation. According to DPPH., hydroxyl radical and superoxide anion radical scavenging activity assays, the supercritical extracts expressed stronger antioxidant activity comparing to the essential oil. The most effective was the supercritical extract obtained by fractional extraction at 30 MPa and 100 degrees C after the volatile fraction had been extracted at lower pressure. At the same time this extract showed strong antibacterial activity against staphylococci, including MASA strain, but did not affect Escherichia coli of normal intestinal flora. The essential oil obtained by hydrodistillation showed stronger antibacterial activity against E. coli, Salmonella and Klebsiella pneumoniae, comparing to the supercritical extracts but at the same affected the normal gut flora.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Food Chemistry",
title = "Free-radical scavenging activity and antibacterial impact of Greek oregano isolates obtained by SFE",
pages = "315-307",
volume = "165",
doi = "10.1016/j.foodchem.2014.05.091"
}
Stamenić, M., Vulić, J., Đilas, S., Mišić, D., Tadić, V., Petrović, S.,& Žižović, I.. (2014). Free-radical scavenging activity and antibacterial impact of Greek oregano isolates obtained by SFE. in Food Chemistry
Elsevier Sci Ltd, Oxford., 165, 307-315.
https://doi.org/10.1016/j.foodchem.2014.05.091
Stamenić M, Vulić J, Đilas S, Mišić D, Tadić V, Petrović S, Žižović I. Free-radical scavenging activity and antibacterial impact of Greek oregano isolates obtained by SFE. in Food Chemistry. 2014;165:307-315.
doi:10.1016/j.foodchem.2014.05.091 .
Stamenić, Marko, Vulić, Jelena, Đilas, Sonja, Mišić, Dušan, Tadić, Vanja, Petrović, Slobodan, Žižović, Irena, "Free-radical scavenging activity and antibacterial impact of Greek oregano isolates obtained by SFE" in Food Chemistry, 165 (2014):307-315,
https://doi.org/10.1016/j.foodchem.2014.05.091 . .
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Supercritical carbon dioxide extraction of antioxidants from rosemary (Rosmarinus officinalis L.) and sage (Salvia officinalis L.)

Ivanović, Jasna; Đilas, Sonja; Jadranin, Milka; Vajs, Vlatka; Babović, Nada; Petrović, Slobodan; Žižović, Irena

(Serbian Chemical Society, Belgrade, 2009)

TY  - JOUR
AU  - Ivanović, Jasna
AU  - Đilas, Sonja
AU  - Jadranin, Milka
AU  - Vajs, Vlatka
AU  - Babović, Nada
AU  - Petrović, Slobodan
AU  - Žižović, Irena
PY  - 2009
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1386
AB  - The aim of the present study was to isolate and characterize antioxidant extracts obtained from dried leaves of rosemary (Rosmarinus officinalis L.) and sage (Salvia officinalis L.), originating from the southern Balkan Region. The antioxidant fraction was isolated from the plant material by supercritical carbon dioxide (SC-CO2) fractional extraction under a pressure of 30 MPa and at temperatures of 40 and 100°C. In the present study, kinetic data and yields of antioxidant extracts obtained from dried leaves of rosemary and sage under different conditions were determined. Electron spin resonance (ESR) spectroscopy assay on the ability of the extracts to scavenge stable 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radicals and reactive hydroxyl radicals during the Fenton reaction trapped by 5,5-dimethyl-1-pyrroline-N-oxide (DMPO) showed that the investigated extracts had antioxidant activity comparable to that of butylated hydroxyanisole (BHA) and commercial rosemary extract. The antioxidant fractions isolated at the higher temperature had higher antioxidant activities. A tentative analysis of the chemical composition of the antioxidant fractions obtained at the higher temperature was accomplished by LC-DAD and LC-MS analytical methods. Abietane-type diterpenoids, flavonoids and fatty acids were identified in the SC-CO2 extract of rosemary and sage.
AB  - Cilj ovog rada bio je izolacija i karakterizacija antioksidativnih ekstrakata ruzmarina (Rosmarinus officinalis L.) i žalfije (Salvia officinalis L.) sa područja južnog Balkana. Antioksidativna frakcija izolovana je iz biljnog materijala primenom frakcione ekstrakcije sa natkritičnim ugljenik(IV)-oksidom na pritisku od 30 MPa i na temperaturama od 40 i 100°C. U ovom radu su prikazani rezultati ispitivanja kinetike natkritične ekstrakcije antioksidativnih frakcija iz ruzmarina i žalfije na različitim uslovima. Elektron spin rezonantna (ESR) spektralna analiza uticaja antioksidativnih ekstrakata ruzmarina i žalfije na transformaciju stabilnih 2,2-difenil-1-pikrilhidrazil (DPPH) radikala kao i na stvaranje i transformaciju reaktivnih hidroksilnih radikala obrazovanih u Fentonovoj reakciji u prisustvu 'spin-trapa' 5,5-dimetil-1-pirolin-N-oksida (DMPO), pokazala je da ispitivani ekstrakti imaju antioksidativnu aktivnost uporedivu sa butilovanim hidroksianizolom (BHA) i komercijalnim ruzmarinskim antioksidansom. Antioksidativne frakcije ruzmarina i žalfije izolovane na višoj temperaturi pokazale su veću antioksidativnu aktivnost. Za preliminarnu analizu hemijskog sastava antioksidativnih ekstrakata izolovanih na višoj temperaturi korišćena je tečna hromatografija (LC) sa detektorom sa nizom dioda (DAD) i tečna hromatografija (LC) sa masenom spektrometrijom (MS). Ekstrakti ruzmarina i žalfije sadržali su abijetanske terpenoide, flavonoide i masne kiseline.
PB  - Serbian Chemical Society, Belgrade
T2  - Journal of the Serbian Chemical Society
T1  - Supercritical carbon dioxide extraction of antioxidants from rosemary (Rosmarinus officinalis L.) and sage (Salvia officinalis L.)
T1  - Natkritična ekstrakcija antioksidanasa iz ruzmarina (Rosmarinus officinalis L.) i žalfije (Salvia officinalis L.)
EP  - 732
IS  - 7
SP  - 717
VL  - 74
UR  - https://hdl.handle.net/21.15107/rcub_technorep_1386
ER  - 
@article{
author = "Ivanović, Jasna and Đilas, Sonja and Jadranin, Milka and Vajs, Vlatka and Babović, Nada and Petrović, Slobodan and Žižović, Irena",
year = "2009",
abstract = "The aim of the present study was to isolate and characterize antioxidant extracts obtained from dried leaves of rosemary (Rosmarinus officinalis L.) and sage (Salvia officinalis L.), originating from the southern Balkan Region. The antioxidant fraction was isolated from the plant material by supercritical carbon dioxide (SC-CO2) fractional extraction under a pressure of 30 MPa and at temperatures of 40 and 100°C. In the present study, kinetic data and yields of antioxidant extracts obtained from dried leaves of rosemary and sage under different conditions were determined. Electron spin resonance (ESR) spectroscopy assay on the ability of the extracts to scavenge stable 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radicals and reactive hydroxyl radicals during the Fenton reaction trapped by 5,5-dimethyl-1-pyrroline-N-oxide (DMPO) showed that the investigated extracts had antioxidant activity comparable to that of butylated hydroxyanisole (BHA) and commercial rosemary extract. The antioxidant fractions isolated at the higher temperature had higher antioxidant activities. A tentative analysis of the chemical composition of the antioxidant fractions obtained at the higher temperature was accomplished by LC-DAD and LC-MS analytical methods. Abietane-type diterpenoids, flavonoids and fatty acids were identified in the SC-CO2 extract of rosemary and sage., Cilj ovog rada bio je izolacija i karakterizacija antioksidativnih ekstrakata ruzmarina (Rosmarinus officinalis L.) i žalfije (Salvia officinalis L.) sa područja južnog Balkana. Antioksidativna frakcija izolovana je iz biljnog materijala primenom frakcione ekstrakcije sa natkritičnim ugljenik(IV)-oksidom na pritisku od 30 MPa i na temperaturama od 40 i 100°C. U ovom radu su prikazani rezultati ispitivanja kinetike natkritične ekstrakcije antioksidativnih frakcija iz ruzmarina i žalfije na različitim uslovima. Elektron spin rezonantna (ESR) spektralna analiza uticaja antioksidativnih ekstrakata ruzmarina i žalfije na transformaciju stabilnih 2,2-difenil-1-pikrilhidrazil (DPPH) radikala kao i na stvaranje i transformaciju reaktivnih hidroksilnih radikala obrazovanih u Fentonovoj reakciji u prisustvu 'spin-trapa' 5,5-dimetil-1-pirolin-N-oksida (DMPO), pokazala je da ispitivani ekstrakti imaju antioksidativnu aktivnost uporedivu sa butilovanim hidroksianizolom (BHA) i komercijalnim ruzmarinskim antioksidansom. Antioksidativne frakcije ruzmarina i žalfije izolovane na višoj temperaturi pokazale su veću antioksidativnu aktivnost. Za preliminarnu analizu hemijskog sastava antioksidativnih ekstrakata izolovanih na višoj temperaturi korišćena je tečna hromatografija (LC) sa detektorom sa nizom dioda (DAD) i tečna hromatografija (LC) sa masenom spektrometrijom (MS). Ekstrakti ruzmarina i žalfije sadržali su abijetanske terpenoide, flavonoide i masne kiseline.",
publisher = "Serbian Chemical Society, Belgrade",
journal = "Journal of the Serbian Chemical Society",
title = "Supercritical carbon dioxide extraction of antioxidants from rosemary (Rosmarinus officinalis L.) and sage (Salvia officinalis L.), Natkritična ekstrakcija antioksidanasa iz ruzmarina (Rosmarinus officinalis L.) i žalfije (Salvia officinalis L.)",
pages = "732-717",
number = "7",
volume = "74",
url = "https://hdl.handle.net/21.15107/rcub_technorep_1386"
}
Ivanović, J., Đilas, S., Jadranin, M., Vajs, V., Babović, N., Petrović, S.,& Žižović, I.. (2009). Supercritical carbon dioxide extraction of antioxidants from rosemary (Rosmarinus officinalis L.) and sage (Salvia officinalis L.). in Journal of the Serbian Chemical Society
Serbian Chemical Society, Belgrade., 74(7), 717-732.
https://hdl.handle.net/21.15107/rcub_technorep_1386
Ivanović J, Đilas S, Jadranin M, Vajs V, Babović N, Petrović S, Žižović I. Supercritical carbon dioxide extraction of antioxidants from rosemary (Rosmarinus officinalis L.) and sage (Salvia officinalis L.). in Journal of the Serbian Chemical Society. 2009;74(7):717-732.
https://hdl.handle.net/21.15107/rcub_technorep_1386 .
Ivanović, Jasna, Đilas, Sonja, Jadranin, Milka, Vajs, Vlatka, Babović, Nada, Petrović, Slobodan, Žižović, Irena, "Supercritical carbon dioxide extraction of antioxidants from rosemary (Rosmarinus officinalis L.) and sage (Salvia officinalis L.)" in Journal of the Serbian Chemical Society, 74, no. 7 (2009):717-732,
https://hdl.handle.net/21.15107/rcub_technorep_1386 .
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The extremely high stability of carbofuran pesticide in acidic media

Tomašević, Anđelka; Bošković, Goran C.; Mijin, Dušan; Đilas, Sonja; Kiš, Erne E.

(Faculty of Technology, Novi Sad, 2007)

TY  - JOUR
AU  - Tomašević, Anđelka
AU  - Bošković, Goran C.
AU  - Mijin, Dušan
AU  - Đilas, Sonja
AU  - Kiš, Erne E.
PY  - 2007
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1069
AB  - Environment friendly iron catalysts were applied in the decomposition reactions of some toxic compounds like phenol, methomyl and corbofuran pesticide. The applied catalytic processes belong to photo-Fenton reactions. Heterogeneous iron catalysts showed significant activity in phenol and methomyl conversion, however, these catalysts were completely inactive in destruction of carbofuran molecule, even in the catalytic reaction promoted with UV light at high temperature.
AB  - Izučavana je foto-katalitička razgradnja fenola, metomila i karbofurana u prisustvu katalizatora na bazi gvožđa. Primenjeni katalizatori su pokazali znatnu katalitičku aktivnost u reakcijama razgradnje fenola i metomila, međutim bili su potpuno inertni u reakciji razgradnje karbofurana. Neaktivnost primenjenih katalizatora u reakciji razgradnje karbofurana može da se tumači zatvorenom stabilnom elektronskom strukturom molekula karbofurana. Ova pretpostavka međutim treba da se potvrdi detaljnim teorijskim i eksperimentalnim istraživanjima.
PB  - Faculty of Technology, Novi Sad
T2  - Acta periodica technologica
T1  - The extremely high stability of carbofuran pesticide in acidic media
T1  - Ekstremno visoka stabilnost pesticida karbofurana u kiseloj sredini
EP  - 103
IS  - 38
SP  - 97
DO  - 10.2298/APT0738097T
ER  - 
@article{
author = "Tomašević, Anđelka and Bošković, Goran C. and Mijin, Dušan and Đilas, Sonja and Kiš, Erne E.",
year = "2007",
abstract = "Environment friendly iron catalysts were applied in the decomposition reactions of some toxic compounds like phenol, methomyl and corbofuran pesticide. The applied catalytic processes belong to photo-Fenton reactions. Heterogeneous iron catalysts showed significant activity in phenol and methomyl conversion, however, these catalysts were completely inactive in destruction of carbofuran molecule, even in the catalytic reaction promoted with UV light at high temperature., Izučavana je foto-katalitička razgradnja fenola, metomila i karbofurana u prisustvu katalizatora na bazi gvožđa. Primenjeni katalizatori su pokazali znatnu katalitičku aktivnost u reakcijama razgradnje fenola i metomila, međutim bili su potpuno inertni u reakciji razgradnje karbofurana. Neaktivnost primenjenih katalizatora u reakciji razgradnje karbofurana može da se tumači zatvorenom stabilnom elektronskom strukturom molekula karbofurana. Ova pretpostavka međutim treba da se potvrdi detaljnim teorijskim i eksperimentalnim istraživanjima.",
publisher = "Faculty of Technology, Novi Sad",
journal = "Acta periodica technologica",
title = "The extremely high stability of carbofuran pesticide in acidic media, Ekstremno visoka stabilnost pesticida karbofurana u kiseloj sredini",
pages = "103-97",
number = "38",
doi = "10.2298/APT0738097T"
}
Tomašević, A., Bošković, G. C., Mijin, D., Đilas, S.,& Kiš, E. E.. (2007). The extremely high stability of carbofuran pesticide in acidic media. in Acta periodica technologica
Faculty of Technology, Novi Sad.(38), 97-103.
https://doi.org/10.2298/APT0738097T
Tomašević A, Bošković GC, Mijin D, Đilas S, Kiš EE. The extremely high stability of carbofuran pesticide in acidic media. in Acta periodica technologica. 2007;(38):97-103.
doi:10.2298/APT0738097T .
Tomašević, Anđelka, Bošković, Goran C., Mijin, Dušan, Đilas, Sonja, Kiš, Erne E., "The extremely high stability of carbofuran pesticide in acidic media" in Acta periodica technologica, no. 38 (2007):97-103,
https://doi.org/10.2298/APT0738097T . .
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