TY  - DATA
AU  - Anđelković, Uroš
AU  - Milutinović-Nikolić, Aleksandra D.
AU  - Jović-Jovičić, Nataša
AU  - Banković, Predrag
AU  - Bajt, Teja
AU  - Mojović, Zorica D.
AU  - Vujčić, Zoran
AU  - Jovanović, Dušan
PY  - 2015
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/3365
AB  - The external invertase isoform 1 (EINV1) was immobilised on eight differently modified beidellite nanoclays, Modifications were composed of organo-modification with different amounts of surfactant - hexadecyl trimethylammonium cation (HDTMA), pillaring with Al/Fe containing polyhydroxy cations and acid modification of Na-enriched and pillared clays. The modified nanoclays were characterised by XRD, N-2-physisorption, SEM and FT-IR spectroscopy. The amount of bound enzyme activity was significantly influenced by the modification of beidellite ranging from 50 to remarkable 2200 U/g. Biochemical characterization was performed for five modified nanoclays showing the highest enzyme activity after invertase immobilisation. The investigation demonstrated that after immobilisation the structure and the catalytic properties of invertase were preserved, while Km values were slightly increased from 26 to 37 mM. immobilisation significantly improved thermal and storage stability of EINV1. Results indicate that beidellite nanoclays obtained by low cost modifications can be applied as a suitable support for the immobilisation of invertase. The immobilizate can be efficiently engaged in sucrose hydrolysis in batch reactor.
PB  - Elsevier Sci Ltd, Oxford
T2  - Food Chemistry
T1  - Supplementary data for article: Andjelković, U.; Milutinović-Nikolić, A.; Jović-Jovičić, N.; Banković, P.; Bajt, T.; Mojović, Z.; Vujčić, Z.; Jovanović, D. Efficient Stabilization of Saccharomyces Cerevisiae External Invertase by Immobilisation on Modified Beidellite Nanoclays. Food Chemistry 2015, 168, 262–269. https://doi.org/10.1016/j.foodchem.2014.07.055
UR  - https://hdl.handle.net/21.15107/rcub_cherry_3365
ER  - 

@misc{
author = "Anđelković, Uroš and Milutinović-Nikolić, Aleksandra D. and Jović-Jovičić, Nataša and Banković, Predrag and Bajt, Teja and Mojović, Zorica D. and Vujčić, Zoran and Jovanović, Dušan",
year = "2015",
abstract = "The external invertase isoform 1 (EINV1) was immobilised on eight differently modified beidellite nanoclays, Modifications were composed of organo-modification with different amounts of surfactant - hexadecyl trimethylammonium cation (HDTMA), pillaring with Al/Fe containing polyhydroxy cations and acid modification of Na-enriched and pillared clays. The modified nanoclays were characterised by XRD, N-2-physisorption, SEM and FT-IR spectroscopy. The amount of bound enzyme activity was significantly influenced by the modification of beidellite ranging from 50 to remarkable 2200 U/g. Biochemical characterization was performed for five modified nanoclays showing the highest enzyme activity after invertase immobilisation. The investigation demonstrated that after immobilisation the structure and the catalytic properties of invertase were preserved, while Km values were slightly increased from 26 to 37 mM. immobilisation significantly improved thermal and storage stability of EINV1. Results indicate that beidellite nanoclays obtained by low cost modifications can be applied as a suitable support for the immobilisation of invertase. The immobilizate can be efficiently engaged in sucrose hydrolysis in batch reactor.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Food Chemistry",
title = "Supplementary data for article: Andjelković, U.; Milutinović-Nikolić, A.; Jović-Jovičić, N.; Banković, P.; Bajt, T.; Mojović, Z.; Vujčić, Z.; Jovanović, D. Efficient Stabilization of Saccharomyces Cerevisiae External Invertase by Immobilisation on Modified Beidellite Nanoclays. Food Chemistry 2015, 168, 262–269. https://doi.org/10.1016/j.foodchem.2014.07.055",
url = "https://hdl.handle.net/21.15107/rcub_cherry_3365"
}

Anđelković, U., Milutinović-Nikolić, A. D., Jović-Jovičić, N., Banković, P., Bajt, T., Mojović, Z. D., Vujčić, Z.,& Jovanović, D.. (2015). Supplementary data for article: Andjelković, U.; Milutinović-Nikolić, A.; Jović-Jovičić, N.; Banković, P.; Bajt, T.; Mojović, Z.; Vujčić, Z.; Jovanović, D. Efficient Stabilization of Saccharomyces Cerevisiae External Invertase by Immobilisation on Modified Beidellite Nanoclays. Food Chemistry 2015, 168, 262–269. https://doi.org/10.1016/j.foodchem.2014.07.055. in Food Chemistry
Elsevier Sci Ltd, Oxford..
https://hdl.handle.net/21.15107/rcub_cherry_3365

Anđelković U, Milutinović-Nikolić AD, Jović-Jovičić N, Banković P, Bajt T, Mojović ZD, Vujčić Z, Jovanović D. Supplementary data for article: Andjelković, U.; Milutinović-Nikolić, A.; Jović-Jovičić, N.; Banković, P.; Bajt, T.; Mojović, Z.; Vujčić, Z.; Jovanović, D. Efficient Stabilization of Saccharomyces Cerevisiae External Invertase by Immobilisation on Modified Beidellite Nanoclays. Food Chemistry 2015, 168, 262–269. https://doi.org/10.1016/j.foodchem.2014.07.055. in Food Chemistry. 2015;.
https://hdl.handle.net/21.15107/rcub_cherry_3365 .

Anđelković, Uroš, Milutinović-Nikolić, Aleksandra D., Jović-Jovičić, Nataša, Banković, Predrag, Bajt, Teja, Mojović, Zorica D., Vujčić, Zoran, Jovanović, Dušan, "Supplementary data for article: Andjelković, U.; Milutinović-Nikolić, A.; Jović-Jovičić, N.; Banković, P.; Bajt, T.; Mojović, Z.; Vujčić, Z.; Jovanović, D. Efficient Stabilization of Saccharomyces Cerevisiae External Invertase by Immobilisation on Modified Beidellite Nanoclays. Food Chemistry 2015, 168, 262–269. https://doi.org/10.1016/j.foodchem.2014.07.055" in Food Chemistry (2015),
https://hdl.handle.net/21.15107/rcub_cherry_3365 .

TY  - JOUR
AU  - Anđelković, Uroš
AU  - Milutinović-Nikolić, Aleksandra D.
AU  - Jović-Jovičić, Nataša
AU  - Banković, Predrag
AU  - Bajt, Teja
AU  - Mojović, Zorica D.
AU  - Vujčić, Zoran
AU  - Jovanović, Dušan
PY  - 2015
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1865
AB  - The external invertase isoform 1 (EINV1) was immobilised on eight differently modified beidellite nanoclays, Modifications were composed of organo-modification with different amounts of surfactant - hexadecyl trimethylammonium cation (HDTMA), pillaring with Al/Fe containing polyhydroxy cations and acid modification of Na-enriched and pillared clays. The modified nanoclays were characterised by XRD, N-2-physisorption, SEM and FT-IR spectroscopy. The amount of bound enzyme activity was significantly influenced by the modification of beidellite ranging from 50 to remarkable 2200 U/g. Biochemical characterization was performed for five modified nanoclays showing the highest enzyme activity after invertase immobilisation. The investigation demonstrated that after immobilisation the structure and the catalytic properties of invertase were preserved, while Km values were slightly increased from 26 to 37 mM. immobilisation significantly improved thermal and storage stability of EINV1. Results indicate that beidellite nanoclays obtained by low cost modifications can be applied as a suitable support for the immobilisation of invertase. The immobilizate can be efficiently engaged in sucrose hydrolysis in batch reactor.
PB  - Elsevier Sci Ltd, Oxford
T2  - Food Chemistry
T1  - Efficient stabilization of Saccharomyces cerevisiae external invertase by immobilisation on modified beidellite nanoclays
VL  - 168
SP  - 262
EP  - 269
DO  - 10.1016/j.foodchem.2014.07.055
ER  - 

@article{
author = "Anđelković, Uroš and Milutinović-Nikolić, Aleksandra D. and Jović-Jovičić, Nataša and Banković, Predrag and Bajt, Teja and Mojović, Zorica D. and Vujčić, Zoran and Jovanović, Dušan",
year = "2015",
abstract = "The external invertase isoform 1 (EINV1) was immobilised on eight differently modified beidellite nanoclays, Modifications were composed of organo-modification with different amounts of surfactant - hexadecyl trimethylammonium cation (HDTMA), pillaring with Al/Fe containing polyhydroxy cations and acid modification of Na-enriched and pillared clays. The modified nanoclays were characterised by XRD, N-2-physisorption, SEM and FT-IR spectroscopy. The amount of bound enzyme activity was significantly influenced by the modification of beidellite ranging from 50 to remarkable 2200 U/g. Biochemical characterization was performed for five modified nanoclays showing the highest enzyme activity after invertase immobilisation. The investigation demonstrated that after immobilisation the structure and the catalytic properties of invertase were preserved, while Km values were slightly increased from 26 to 37 mM. immobilisation significantly improved thermal and storage stability of EINV1. Results indicate that beidellite nanoclays obtained by low cost modifications can be applied as a suitable support for the immobilisation of invertase. The immobilizate can be efficiently engaged in sucrose hydrolysis in batch reactor.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Food Chemistry",
title = "Efficient stabilization of Saccharomyces cerevisiae external invertase by immobilisation on modified beidellite nanoclays",
volume = "168",
pages = "262-269",
doi = "10.1016/j.foodchem.2014.07.055"
}

Anđelković, U., Milutinović-Nikolić, A. D., Jović-Jovičić, N., Banković, P., Bajt, T., Mojović, Z. D., Vujčić, Z.,& Jovanović, D.. (2015). Efficient stabilization of Saccharomyces cerevisiae external invertase by immobilisation on modified beidellite nanoclays. in Food Chemistry
Elsevier Sci Ltd, Oxford., 168, 262-269.
https://doi.org/10.1016/j.foodchem.2014.07.055

Anđelković U, Milutinović-Nikolić AD, Jović-Jovičić N, Banković P, Bajt T, Mojović ZD, Vujčić Z, Jovanović D. Efficient stabilization of Saccharomyces cerevisiae external invertase by immobilisation on modified beidellite nanoclays. in Food Chemistry. 2015;168:262-269.
doi:10.1016/j.foodchem.2014.07.055 .

Anđelković, Uroš, Milutinović-Nikolić, Aleksandra D., Jović-Jovičić, Nataša, Banković, Predrag, Bajt, Teja, Mojović, Zorica D., Vujčić, Zoran, Jovanović, Dušan, "Efficient stabilization of Saccharomyces cerevisiae external invertase by immobilisation on modified beidellite nanoclays" in Food Chemistry, 168 (2015):262-269,
https://doi.org/10.1016/j.foodchem.2014.07.055 . .

TY  - JOUR
AU  - Sucurovic, Aleksandra
AU  - Vukelic, Nikola
AU  - Ignjatovic, Ljubisa
AU  - Brčeski, Ilija
AU  - Jovanović, Dušan
PY  - 2009
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1036
AB  - Fresh raspberry (Rubus idaeus), cultivar Willamette, was freeze-dried (lyophilization). A byproduct of lyophilization is "fine dust" of raspberry consisting of finely ground raspberry fruit body and seed. The seeds were separated. The seed oil was isolated and its physical and chemical characteristics were determined. Parameters that characterize the seed and quality of the oil were examined, including fatty acid composition, oxidative stability under different storage conditions, and radical-scavenging activity. The fatty acid composition was determined by GC/FID and the contents of the dominant fatty acids were found as: oleic 16.92%, linoleic 54.95%, and alpha-linolenic acid 23.97%. The oxidative stability of the oil was poor. The induction period by Rancimat test at 100 degrees C was 5.2 h. The radical-scavenging activity is similar to that of resveratrol [1,3-benzenediol 5-(1(E)-2-4-hydroxy-phenyl-ethyl)]. Although this product is used in the candy industry, it would be far more useful if raspberry oil of satisfactory quality could be extracted. This paper demonstrates that sifted lyophilized seeds can be used for the extraction of oils. This process allows for maximal usage of the byproducts, reduces losses and it increases the development of new products.
PB  - Wiley-V C H Verlag Gmbh, Weinheim
T2  - European Journal of Lipid Science and Technology
T1  - Physical-chemical characteristics and oxidative stability of oil obtained from lyophilized raspberry seed
VL  - 111
IS  - 11
SP  - 1133
EP  - 1141
DO  - 10.1002/ejlt.200900022
ER  - 

@article{
author = "Sucurovic, Aleksandra and Vukelic, Nikola and Ignjatovic, Ljubisa and Brčeski, Ilija and Jovanović, Dušan",
year = "2009",
abstract = "Fresh raspberry (Rubus idaeus), cultivar Willamette, was freeze-dried (lyophilization). A byproduct of lyophilization is "fine dust" of raspberry consisting of finely ground raspberry fruit body and seed. The seeds were separated. The seed oil was isolated and its physical and chemical characteristics were determined. Parameters that characterize the seed and quality of the oil were examined, including fatty acid composition, oxidative stability under different storage conditions, and radical-scavenging activity. The fatty acid composition was determined by GC/FID and the contents of the dominant fatty acids were found as: oleic 16.92%, linoleic 54.95%, and alpha-linolenic acid 23.97%. The oxidative stability of the oil was poor. The induction period by Rancimat test at 100 degrees C was 5.2 h. The radical-scavenging activity is similar to that of resveratrol [1,3-benzenediol 5-(1(E)-2-4-hydroxy-phenyl-ethyl)]. Although this product is used in the candy industry, it would be far more useful if raspberry oil of satisfactory quality could be extracted. This paper demonstrates that sifted lyophilized seeds can be used for the extraction of oils. This process allows for maximal usage of the byproducts, reduces losses and it increases the development of new products.",
publisher = "Wiley-V C H Verlag Gmbh, Weinheim",
journal = "European Journal of Lipid Science and Technology",
title = "Physical-chemical characteristics and oxidative stability of oil obtained from lyophilized raspberry seed",
volume = "111",
number = "11",
pages = "1133-1141",
doi = "10.1002/ejlt.200900022"
}

Sucurovic, A., Vukelic, N., Ignjatovic, L., Brčeski, I.,& Jovanović, D.. (2009). Physical-chemical characteristics and oxidative stability of oil obtained from lyophilized raspberry seed. in European Journal of Lipid Science and Technology
Wiley-V C H Verlag Gmbh, Weinheim., 111(11), 1133-1141.
https://doi.org/10.1002/ejlt.200900022

Sucurovic A, Vukelic N, Ignjatovic L, Brčeski I, Jovanović D. Physical-chemical characteristics and oxidative stability of oil obtained from lyophilized raspberry seed. in European Journal of Lipid Science and Technology. 2009;111(11):1133-1141.
doi:10.1002/ejlt.200900022 .

Sucurovic, Aleksandra, Vukelic, Nikola, Ignjatovic, Ljubisa, Brčeski, Ilija, Jovanović, Dušan, "Physical-chemical characteristics and oxidative stability of oil obtained from lyophilized raspberry seed" in European Journal of Lipid Science and Technology, 111, no. 11 (2009):1133-1141,
https://doi.org/10.1002/ejlt.200900022 . .

TY  - JOUR
AU  - Jović-Jovičić, Nataša
AU  - Milutinović-Nikolić, Aleksandra D.
AU  - Gržetić, Ivan
AU  - Jovanović, Dušan
PY  - 2008
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/930
AB  - Domestic bentonite clay was modified using cationic surfactant - hexadecyltrimethylammonium bromide (HDTMA-bromide) in order to obtain more efficient sorbent. Removal of Acid Orange 10 from aqueous solution at different dye concentrations, adsorbent doses, and pH was studied. These studies were carried out under unaltered pH value in order to prove that adjusting pH as an additional operation in wastewater treatment is not entirely necessary. The results obtained confirmed the adsorption capacity is significant even for unaltered pH. The adsorption isotherm data were well fitted with both the Freundlich and Langmuir model and the latter was shown as more appropriate. Dynamical data were well represented with the pseudo second-order kinetic model. The results indicate that HDTMA-bentonite could be employed as low-cost sorbent in textile dye wastewater treatment.
PB  - Wiley-V C H Verlag Gmbh, Weinheim
T2  - Chemical Engineering and Technology
T1  - Organobentonite as efficient textile dye sorbent
VL  - 31
IS  - 4
SP  - 567
EP  - 574
DO  - 10.1002/ceat.200700421
ER  - 

@article{
author = "Jović-Jovičić, Nataša and Milutinović-Nikolić, Aleksandra D. and Gržetić, Ivan and Jovanović, Dušan",
year = "2008",
abstract = "Domestic bentonite clay was modified using cationic surfactant - hexadecyltrimethylammonium bromide (HDTMA-bromide) in order to obtain more efficient sorbent. Removal of Acid Orange 10 from aqueous solution at different dye concentrations, adsorbent doses, and pH was studied. These studies were carried out under unaltered pH value in order to prove that adjusting pH as an additional operation in wastewater treatment is not entirely necessary. The results obtained confirmed the adsorption capacity is significant even for unaltered pH. The adsorption isotherm data were well fitted with both the Freundlich and Langmuir model and the latter was shown as more appropriate. Dynamical data were well represented with the pseudo second-order kinetic model. The results indicate that HDTMA-bentonite could be employed as low-cost sorbent in textile dye wastewater treatment.",
publisher = "Wiley-V C H Verlag Gmbh, Weinheim",
journal = "Chemical Engineering and Technology",
title = "Organobentonite as efficient textile dye sorbent",
volume = "31",
number = "4",
pages = "567-574",
doi = "10.1002/ceat.200700421"
}

Jović-Jovičić, N., Milutinović-Nikolić, A. D., Gržetić, I.,& Jovanović, D.. (2008). Organobentonite as efficient textile dye sorbent. in Chemical Engineering and Technology
Wiley-V C H Verlag Gmbh, Weinheim., 31(4), 567-574.
https://doi.org/10.1002/ceat.200700421

Jović-Jovičić N, Milutinović-Nikolić AD, Gržetić I, Jovanović D. Organobentonite as efficient textile dye sorbent. in Chemical Engineering and Technology. 2008;31(4):567-574.
doi:10.1002/ceat.200700421 .

Jović-Jovičić, Nataša, Milutinović-Nikolić, Aleksandra D., Gržetić, Ivan, Jovanović, Dušan, "Organobentonite as efficient textile dye sorbent" in Chemical Engineering and Technology, 31, no. 4 (2008):567-574,
https://doi.org/10.1002/ceat.200700421 . .

TY  - JOUR
AU  - Sredic, Svjetlana
AU  - Davidovic, Milorad
AU  - Spasjevic-de-Bire, Anne
AU  - Mioč, Ubavka B.
AU  - Todorović, Marija B.
AU  - Šegan, Dejan M.
AU  - Jovanović, Dušan
AU  - Polizos, George
AU  - Pissis, Polycarpos
PY  - 2008
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/968
AB  - Our previous experiences with incorporation of polyoxometalates (POMs) ill different substrates have been very successful, because new nanocomposites with better conductive, catalytical and biochemical characteristics have been obtained. The results of intercalation of different mass% of ammonium decavanadate (ADV) in Al-pillared interlayered clays (Al-PILCs) are presented. The Al-PILCs were prepared using natural raw material, bentonite, containing a high percentage of montmorillonite (MM). Synthesis of ADV has been described in a previous paper. The structure of ADV hexahydrate was determined at low temperature, 100 K. A kappa refinement was performed to estimate the atomic charges. A sol-gel procedure was applied to obtain Al-PILCs composite intercalated with ADV hexahydrate (from 2 to 5 mass% of ADV). Structure and morphological properties of the new material, a nanocomposite of Al-PILCs-ADV, were investigated by X-ray powder diffraction (XRPD) and atomic force microscopy (AFM). To understand better how ADV is incorporated in the MM substrate, specific surface areas, pore structures and pore distributions were determined. Electrical and dielectric properties of the new materials were investigated by thermally stimulated depolarization currents (TSDCs) and broadband dielectric relaxation spectroscopy (DRS). The electrical conductivity of the nanocomposite was found to increase, in relation to MM, by intercalating with a small amount of ADV. (C) 2008 Published by Elsevier Ltd.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Journal of Physics and Chemistry of Solids
T1  - Inorganic-inorganic nanocomposite: Surface and conductive properties
VL  - 69
IS  - 8
SP  - 1883
EP  - 1890
DO  - 10.1016/j.jpcs.2007.12.023
ER  - 

@article{
author = "Sredic, Svjetlana and Davidovic, Milorad and Spasjevic-de-Bire, Anne and Mioč, Ubavka B. and Todorović, Marija B. and Šegan, Dejan M. and Jovanović, Dušan and Polizos, George and Pissis, Polycarpos",
year = "2008",
abstract = "Our previous experiences with incorporation of polyoxometalates (POMs) ill different substrates have been very successful, because new nanocomposites with better conductive, catalytical and biochemical characteristics have been obtained. The results of intercalation of different mass% of ammonium decavanadate (ADV) in Al-pillared interlayered clays (Al-PILCs) are presented. The Al-PILCs were prepared using natural raw material, bentonite, containing a high percentage of montmorillonite (MM). Synthesis of ADV has been described in a previous paper. The structure of ADV hexahydrate was determined at low temperature, 100 K. A kappa refinement was performed to estimate the atomic charges. A sol-gel procedure was applied to obtain Al-PILCs composite intercalated with ADV hexahydrate (from 2 to 5 mass% of ADV). Structure and morphological properties of the new material, a nanocomposite of Al-PILCs-ADV, were investigated by X-ray powder diffraction (XRPD) and atomic force microscopy (AFM). To understand better how ADV is incorporated in the MM substrate, specific surface areas, pore structures and pore distributions were determined. Electrical and dielectric properties of the new materials were investigated by thermally stimulated depolarization currents (TSDCs) and broadband dielectric relaxation spectroscopy (DRS). The electrical conductivity of the nanocomposite was found to increase, in relation to MM, by intercalating with a small amount of ADV. (C) 2008 Published by Elsevier Ltd.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Journal of Physics and Chemistry of Solids",
title = "Inorganic-inorganic nanocomposite: Surface and conductive properties",
volume = "69",
number = "8",
pages = "1883-1890",
doi = "10.1016/j.jpcs.2007.12.023"
}

Sredic, S., Davidovic, M., Spasjevic-de-Bire, A., Mioč, U. B., Todorović, M. B., Šegan, D. M., Jovanović, D., Polizos, G.,& Pissis, P.. (2008). Inorganic-inorganic nanocomposite: Surface and conductive properties. in Journal of Physics and Chemistry of Solids
Pergamon-Elsevier Science Ltd, Oxford., 69(8), 1883-1890.
https://doi.org/10.1016/j.jpcs.2007.12.023

Sredic S, Davidovic M, Spasjevic-de-Bire A, Mioč UB, Todorović MB, Šegan DM, Jovanović D, Polizos G, Pissis P. Inorganic-inorganic nanocomposite: Surface and conductive properties. in Journal of Physics and Chemistry of Solids. 2008;69(8):1883-1890.
doi:10.1016/j.jpcs.2007.12.023 .

Sredic, Svjetlana, Davidovic, Milorad, Spasjevic-de-Bire, Anne, Mioč, Ubavka B., Todorović, Marija B., Šegan, Dejan M., Jovanović, Dušan, Polizos, George, Pissis, Polycarpos, "Inorganic-inorganic nanocomposite: Surface and conductive properties" in Journal of Physics and Chemistry of Solids, 69, no. 8 (2008):1883-1890,
https://doi.org/10.1016/j.jpcs.2007.12.023 . .