TY  - JOUR
AU  - Martinov, Jelena
AU  - Krstic, Miodrag
AU  - Spasić, Snežana
AU  - Miletić, Srđan
AU  - Stefanovic-Kojic, Jovana
AU  - Nikolić-Kokić, Aleksandra
AU  - Blagojevic, Dusko
AU  - Spasojević, Ivan
AU  - Spasić, Mihajlo
PY  - 2017
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2093
AB  - Pectin is the main soluble fiber in apples or citruses. It may be fermented by gut microbiota to metabolites showing local intestinal and systemic effects. A wide range of beneficial effects of dietary pectin includes impacts on the redox milieu and microbiota profile. We prepared pectin-derived oligosaccharides (apple (APDO) and citrus) and polygalacturonic acid-derived oligosaccharides, using alkaline hydrolysis by hydrogen peroxide, and analyzed them by Foufier Transform Infrared spectrometry. Furthermore, we analyzed the effects of pectin derived oligosaccharides on hydroxyl radical (HO center dot)-generating Fenton reaction using electron paramagnetic resonance spin-trapping spectroscopy, and the effects on the growth of Escherichia coli and Staphylococcus minus in the presence of dietary-relevant HO center dot-generating system (iron + ascorbate). The oligosaccharides react with HO center dot radical to produce carbon dioxide radical anion (CO2 center dot (-)). A comparative analysis showed that APDO has the most prominent bacteriostatic effect. This might be at least partially related to the higher capacity of APDO to produce CO2 center dot (-), which specifically targets proteins and appears to have a longer lifetime and larger diffusion radius in biological systems compared to HO center dot.
PB  - Elsevier
T2  - Food Research International
T1  - Apple pectin-derived oligosaccharides produce carbon dioxide radical anion in Fenton reaction and prevent growth of Escherichia coli and Staphylococcus aureus
VL  - 100
SP  - 132
EP  - 136
DO  - 10.1016/j.foodres.2017.08.040
ER  - 

@article{
author = "Martinov, Jelena and Krstic, Miodrag and Spasić, Snežana and Miletić, Srđan and Stefanovic-Kojic, Jovana and Nikolić-Kokić, Aleksandra and Blagojevic, Dusko and Spasojević, Ivan and Spasić, Mihajlo",
year = "2017",
abstract = "Pectin is the main soluble fiber in apples or citruses. It may be fermented by gut microbiota to metabolites showing local intestinal and systemic effects. A wide range of beneficial effects of dietary pectin includes impacts on the redox milieu and microbiota profile. We prepared pectin-derived oligosaccharides (apple (APDO) and citrus) and polygalacturonic acid-derived oligosaccharides, using alkaline hydrolysis by hydrogen peroxide, and analyzed them by Foufier Transform Infrared spectrometry. Furthermore, we analyzed the effects of pectin derived oligosaccharides on hydroxyl radical (HO center dot)-generating Fenton reaction using electron paramagnetic resonance spin-trapping spectroscopy, and the effects on the growth of Escherichia coli and Staphylococcus minus in the presence of dietary-relevant HO center dot-generating system (iron + ascorbate). The oligosaccharides react with HO center dot radical to produce carbon dioxide radical anion (CO2 center dot (-)). A comparative analysis showed that APDO has the most prominent bacteriostatic effect. This might be at least partially related to the higher capacity of APDO to produce CO2 center dot (-), which specifically targets proteins and appears to have a longer lifetime and larger diffusion radius in biological systems compared to HO center dot.",
publisher = "Elsevier",
journal = "Food Research International",
title = "Apple pectin-derived oligosaccharides produce carbon dioxide radical anion in Fenton reaction and prevent growth of Escherichia coli and Staphylococcus aureus",
volume = "100",
pages = "132-136",
doi = "10.1016/j.foodres.2017.08.040"
}

Martinov, J., Krstic, M., Spasić, S., Miletić, S., Stefanovic-Kojic, J., Nikolić-Kokić, A., Blagojevic, D., Spasojević, I.,& Spasić, M.. (2017). Apple pectin-derived oligosaccharides produce carbon dioxide radical anion in Fenton reaction and prevent growth of Escherichia coli and Staphylococcus aureus. in Food Research International
Elsevier., 100, 132-136.
https://doi.org/10.1016/j.foodres.2017.08.040

Martinov J, Krstic M, Spasić S, Miletić S, Stefanovic-Kojic J, Nikolić-Kokić A, Blagojevic D, Spasojević I, Spasić M. Apple pectin-derived oligosaccharides produce carbon dioxide radical anion in Fenton reaction and prevent growth of Escherichia coli and Staphylococcus aureus. in Food Research International. 2017;100:132-136.
doi:10.1016/j.foodres.2017.08.040 .

Martinov, Jelena, Krstic, Miodrag, Spasić, Snežana, Miletić, Srđan, Stefanovic-Kojic, Jovana, Nikolić-Kokić, Aleksandra, Blagojevic, Dusko, Spasojević, Ivan, Spasić, Mihajlo, "Apple pectin-derived oligosaccharides produce carbon dioxide radical anion in Fenton reaction and prevent growth of Escherichia coli and Staphylococcus aureus" in Food Research International, 100 (2017):132-136,
https://doi.org/10.1016/j.foodres.2017.08.040 . .

TY  - JOUR
AU  - Martinov, Jelena
AU  - Krstic, Miodrag
AU  - Spasić, Snežana
AU  - Miletić, Srđan
AU  - Stefanovic-Kojic, Jovana
AU  - Nikolić-Kokić, Aleksandra
AU  - Blagojevic, Dusko
AU  - Spasojević, Ivan
AU  - Spasić, Mihajlo
PY  - 2017
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3043
AB  - Pectin is the main soluble fiber in apples or citruses. It may be fermented by gut microbiota to metabolites showing local intestinal and systemic effects. A wide range of beneficial effects of dietary pectin includes impacts on the redox milieu and microbiota profile. We prepared pectin-derived oligosaccharides (apple (APDO) and citrus) and polygalacturonic acid-derived oligosaccharides, using alkaline hydrolysis by hydrogen peroxide, and analyzed them by Foufier Transform Infrared spectrometry. Furthermore, we analyzed the effects of pectin derived oligosaccharides on hydroxyl radical (HO center dot)-generating Fenton reaction using electron paramagnetic resonance spin-trapping spectroscopy, and the effects on the growth of Escherichia coli and Staphylococcus minus in the presence of dietary-relevant HO center dot-generating system (iron + ascorbate). The oligosaccharides react with HO center dot radical to produce carbon dioxide radical anion (CO2 center dot (-)). A comparative analysis showed that APDO has the most prominent bacteriostatic effect. This might be at least partially related to the higher capacity of APDO to produce CO2 center dot (-), which specifically targets proteins and appears to have a longer lifetime and larger diffusion radius in biological systems compared to HO center dot.
PB  - Elsevier
T2  - Food Research International
T1  - Apple pectin-derived oligosaccharides produce carbon dioxide radical anion in Fenton reaction and prevent growth of Escherichia coli and Staphylococcus aureus
VL  - 100
SP  - 132
EP  - 136
DO  - 10.1016/j.foodres.2017.08.040
ER  - 

@article{
author = "Martinov, Jelena and Krstic, Miodrag and Spasić, Snežana and Miletić, Srđan and Stefanovic-Kojic, Jovana and Nikolić-Kokić, Aleksandra and Blagojevic, Dusko and Spasojević, Ivan and Spasić, Mihajlo",
year = "2017",
abstract = "Pectin is the main soluble fiber in apples or citruses. It may be fermented by gut microbiota to metabolites showing local intestinal and systemic effects. A wide range of beneficial effects of dietary pectin includes impacts on the redox milieu and microbiota profile. We prepared pectin-derived oligosaccharides (apple (APDO) and citrus) and polygalacturonic acid-derived oligosaccharides, using alkaline hydrolysis by hydrogen peroxide, and analyzed them by Foufier Transform Infrared spectrometry. Furthermore, we analyzed the effects of pectin derived oligosaccharides on hydroxyl radical (HO center dot)-generating Fenton reaction using electron paramagnetic resonance spin-trapping spectroscopy, and the effects on the growth of Escherichia coli and Staphylococcus minus in the presence of dietary-relevant HO center dot-generating system (iron + ascorbate). The oligosaccharides react with HO center dot radical to produce carbon dioxide radical anion (CO2 center dot (-)). A comparative analysis showed that APDO has the most prominent bacteriostatic effect. This might be at least partially related to the higher capacity of APDO to produce CO2 center dot (-), which specifically targets proteins and appears to have a longer lifetime and larger diffusion radius in biological systems compared to HO center dot.",
publisher = "Elsevier",
journal = "Food Research International",
title = "Apple pectin-derived oligosaccharides produce carbon dioxide radical anion in Fenton reaction and prevent growth of Escherichia coli and Staphylococcus aureus",
volume = "100",
pages = "132-136",
doi = "10.1016/j.foodres.2017.08.040"
}

Martinov, J., Krstic, M., Spasić, S., Miletić, S., Stefanovic-Kojic, J., Nikolić-Kokić, A., Blagojevic, D., Spasojević, I.,& Spasić, M.. (2017). Apple pectin-derived oligosaccharides produce carbon dioxide radical anion in Fenton reaction and prevent growth of Escherichia coli and Staphylococcus aureus. in Food Research International
Elsevier., 100, 132-136.
https://doi.org/10.1016/j.foodres.2017.08.040

Martinov J, Krstic M, Spasić S, Miletić S, Stefanovic-Kojic J, Nikolić-Kokić A, Blagojevic D, Spasojević I, Spasić M. Apple pectin-derived oligosaccharides produce carbon dioxide radical anion in Fenton reaction and prevent growth of Escherichia coli and Staphylococcus aureus. in Food Research International. 2017;100:132-136.
doi:10.1016/j.foodres.2017.08.040 .

Martinov, Jelena, Krstic, Miodrag, Spasić, Snežana, Miletić, Srđan, Stefanovic-Kojic, Jovana, Nikolić-Kokić, Aleksandra, Blagojevic, Dusko, Spasojević, Ivan, Spasić, Mihajlo, "Apple pectin-derived oligosaccharides produce carbon dioxide radical anion in Fenton reaction and prevent growth of Escherichia coli and Staphylococcus aureus" in Food Research International, 100 (2017):132-136,
https://doi.org/10.1016/j.foodres.2017.08.040 . .

TY  - JOUR
AU  - Bolic, Bojana
AU  - Mijuskovic, Ana
AU  - Popovic-Bijelic, Ana
AU  - Nikolić-Kokić, Aleksandra
AU  - Spasić, Snežana
AU  - Blagojevic, Dusko
AU  - Spasić, Mihajlo
AU  - Spasojević, Ivan
PY  - 2015
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1787
AB  - Interactions of hydrogen sulfide (HS-/H2S), a reducing signaling species, with superoxide dimutases (SOD) are poorly understood. We applied low-T EPR spectroscopy to examine the effects of HS-/H2S and superoxide radical anion (O-2(-)) on metallocenters of FeSOD, MnSOD, and CuZnSOD. HS-/H2S did not affect FeSOD, whereas active centers of MnSOD and CuZnSOD were open to this agent. Cu2+ was reduced to Cu1+, while manganese appears to be released from MnSOD active center. Untreated and O-2(-) treated FeSOD and MnSOD predominantly show 5 d-electron systems, i.e. Fe3+ and Mn2+. Our study provides new details on the mechanisms of (patho)physiological effects of HS-/H2S.
PB  - Academic Press Inc Elsevier Science, San Diego
T2  - Nitric Oxide-Biology and Chemistry
T1  - Reactions of superoxide dismutases with HS-/H2S and superoxide radical anion: An in vitro EPR study
VL  - 51
SP  - 19
EP  - 23
DO  - 10.1016/j.niox.2015.09.008
ER  - 

@article{
author = "Bolic, Bojana and Mijuskovic, Ana and Popovic-Bijelic, Ana and Nikolić-Kokić, Aleksandra and Spasić, Snežana and Blagojevic, Dusko and Spasić, Mihajlo and Spasojević, Ivan",
year = "2015",
abstract = "Interactions of hydrogen sulfide (HS-/H2S), a reducing signaling species, with superoxide dimutases (SOD) are poorly understood. We applied low-T EPR spectroscopy to examine the effects of HS-/H2S and superoxide radical anion (O-2(-)) on metallocenters of FeSOD, MnSOD, and CuZnSOD. HS-/H2S did not affect FeSOD, whereas active centers of MnSOD and CuZnSOD were open to this agent. Cu2+ was reduced to Cu1+, while manganese appears to be released from MnSOD active center. Untreated and O-2(-) treated FeSOD and MnSOD predominantly show 5 d-electron systems, i.e. Fe3+ and Mn2+. Our study provides new details on the mechanisms of (patho)physiological effects of HS-/H2S.",
publisher = "Academic Press Inc Elsevier Science, San Diego",
journal = "Nitric Oxide-Biology and Chemistry",
title = "Reactions of superoxide dismutases with HS-/H2S and superoxide radical anion: An in vitro EPR study",
volume = "51",
pages = "19-23",
doi = "10.1016/j.niox.2015.09.008"
}

Bolic, B., Mijuskovic, A., Popovic-Bijelic, A., Nikolić-Kokić, A., Spasić, S., Blagojevic, D., Spasić, M.,& Spasojević, I.. (2015). Reactions of superoxide dismutases with HS-/H2S and superoxide radical anion: An in vitro EPR study. in Nitric Oxide-Biology and Chemistry
Academic Press Inc Elsevier Science, San Diego., 51, 19-23.
https://doi.org/10.1016/j.niox.2015.09.008

Bolic B, Mijuskovic A, Popovic-Bijelic A, Nikolić-Kokić A, Spasić S, Blagojevic D, Spasić M, Spasojević I. Reactions of superoxide dismutases with HS-/H2S and superoxide radical anion: An in vitro EPR study. in Nitric Oxide-Biology and Chemistry. 2015;51:19-23.
doi:10.1016/j.niox.2015.09.008 .

Bolic, Bojana, Mijuskovic, Ana, Popovic-Bijelic, Ana, Nikolić-Kokić, Aleksandra, Spasić, Snežana, Blagojevic, Dusko, Spasić, Mihajlo, Spasojević, Ivan, "Reactions of superoxide dismutases with HS-/H2S and superoxide radical anion: An in vitro EPR study" in Nitric Oxide-Biology and Chemistry, 51 (2015):19-23,
https://doi.org/10.1016/j.niox.2015.09.008 . .

TY  - JOUR
AU  - Bolic, Bojana
AU  - Mijuskovic, Ana
AU  - Popovic-Bijelic, Ana
AU  - Nikolić-Kokić, Aleksandra
AU  - Spasić, Snežana
AU  - Blagojevic, Dusko
AU  - Spasić, Mihajlo
AU  - Spasojević, Ivan
PY  - 2015
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3187
AB  - Interactions of hydrogen sulfide (HS-/H2S), a reducing signaling species, with superoxide dimutases (SOD) are poorly understood. We applied low-T EPR spectroscopy to examine the effects of HS-/H2S and superoxide radical anion (O-2(-)) on metallocenters of FeSOD, MnSOD, and CuZnSOD. HS-/H2S did not affect FeSOD, whereas active centers of MnSOD and CuZnSOD were open to this agent. Cu2+ was reduced to Cu1+, while manganese appears to be released from MnSOD active center. Untreated and O-2(-) treated FeSOD and MnSOD predominantly show 5 d-electron systems, i.e. Fe3+ and Mn2+. Our study provides new details on the mechanisms of (patho)physiological effects of HS-/H2S.
PB  - Academic Press Inc Elsevier Science, San Diego
T2  - Nitric Oxide-Biology and Chemistry
T1  - Reactions of superoxide dismutases with HS-/H2S and superoxide radical anion: An in vitro EPR study
VL  - 51
SP  - 19
EP  - 23
DO  - 10.1016/j.niox.2015.09.008
ER  - 

@article{
author = "Bolic, Bojana and Mijuskovic, Ana and Popovic-Bijelic, Ana and Nikolić-Kokić, Aleksandra and Spasić, Snežana and Blagojevic, Dusko and Spasić, Mihajlo and Spasojević, Ivan",
year = "2015",
abstract = "Interactions of hydrogen sulfide (HS-/H2S), a reducing signaling species, with superoxide dimutases (SOD) are poorly understood. We applied low-T EPR spectroscopy to examine the effects of HS-/H2S and superoxide radical anion (O-2(-)) on metallocenters of FeSOD, MnSOD, and CuZnSOD. HS-/H2S did not affect FeSOD, whereas active centers of MnSOD and CuZnSOD were open to this agent. Cu2+ was reduced to Cu1+, while manganese appears to be released from MnSOD active center. Untreated and O-2(-) treated FeSOD and MnSOD predominantly show 5 d-electron systems, i.e. Fe3+ and Mn2+. Our study provides new details on the mechanisms of (patho)physiological effects of HS-/H2S.",
publisher = "Academic Press Inc Elsevier Science, San Diego",
journal = "Nitric Oxide-Biology and Chemistry",
title = "Reactions of superoxide dismutases with HS-/H2S and superoxide radical anion: An in vitro EPR study",
volume = "51",
pages = "19-23",
doi = "10.1016/j.niox.2015.09.008"
}

Bolic, B., Mijuskovic, A., Popovic-Bijelic, A., Nikolić-Kokić, A., Spasić, S., Blagojevic, D., Spasić, M.,& Spasojević, I.. (2015). Reactions of superoxide dismutases with HS-/H2S and superoxide radical anion: An in vitro EPR study. in Nitric Oxide-Biology and Chemistry
Academic Press Inc Elsevier Science, San Diego., 51, 19-23.
https://doi.org/10.1016/j.niox.2015.09.008

Bolic B, Mijuskovic A, Popovic-Bijelic A, Nikolić-Kokić A, Spasić S, Blagojevic D, Spasić M, Spasojević I. Reactions of superoxide dismutases with HS-/H2S and superoxide radical anion: An in vitro EPR study. in Nitric Oxide-Biology and Chemistry. 2015;51:19-23.
doi:10.1016/j.niox.2015.09.008 .

Bolic, Bojana, Mijuskovic, Ana, Popovic-Bijelic, Ana, Nikolić-Kokić, Aleksandra, Spasić, Snežana, Blagojevic, Dusko, Spasić, Mihajlo, Spasojević, Ivan, "Reactions of superoxide dismutases with HS-/H2S and superoxide radical anion: An in vitro EPR study" in Nitric Oxide-Biology and Chemistry, 51 (2015):19-23,
https://doi.org/10.1016/j.niox.2015.09.008 . .

TY  - JOUR
AU  - Vrankovic, Jelena
AU  - Labus-Blagojevic, Svetlana
AU  - Csanyi, Bela
AU  - Makovinska, Jarmila
AU  - Cvetković, Olga
AU  - Gačić, Zoran
AU  - Blagojevic, Dusko
AU  - Paunović, Momir
PY  - 2012
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/956
AB  - Specimens of the freshwater snail Holandriana holandrii affected by different levels of contamination were collected from 3 sites within the Bosna River Basin, i.e. Visoko, Doboj, and Modrica. The activities of antioxidant enzymes such as superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), glutathione reductase (GR), and glutathione-S-transferase (GST) were investigated in order to understand their variation with respect to the pollution status of the sampling locations. The results revealed a significant increase in CAT, GPx, and GST activities in the snails collected from Modrica, suggesting that the animals at this location are exposed to a higher level of oxidative stress as compared to those from Visoko and Doboj. On the other hand, increased SOD activity measured in specimens from Visoko was indicative of the presence of increased levels of superoxide anion radical. No snails from any location were significantly exposed to organic pollution, since its concentration in the whole body homogenates was below the limit of detection. Our findings show that changes in antioxidant enzymes and GST activity can be used as parameters in environmental monitoring programs.
PB  - Tubitak Scientific & Technical Research Council Turkey, Ankara
T2  - Turkish Journal of Biology
T1  - Antioxidant enzymes and GST activity in natural populations of Holandriana holandrii from the Bosna River
VL  - 36
IS  - 4
SP  - 477
EP  - 485
DO  - 10.3906/biy-1111-43
ER  - 

@article{
author = "Vrankovic, Jelena and Labus-Blagojevic, Svetlana and Csanyi, Bela and Makovinska, Jarmila and Cvetković, Olga and Gačić, Zoran and Blagojevic, Dusko and Paunović, Momir",
year = "2012",
abstract = "Specimens of the freshwater snail Holandriana holandrii affected by different levels of contamination were collected from 3 sites within the Bosna River Basin, i.e. Visoko, Doboj, and Modrica. The activities of antioxidant enzymes such as superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), glutathione reductase (GR), and glutathione-S-transferase (GST) were investigated in order to understand their variation with respect to the pollution status of the sampling locations. The results revealed a significant increase in CAT, GPx, and GST activities in the snails collected from Modrica, suggesting that the animals at this location are exposed to a higher level of oxidative stress as compared to those from Visoko and Doboj. On the other hand, increased SOD activity measured in specimens from Visoko was indicative of the presence of increased levels of superoxide anion radical. No snails from any location were significantly exposed to organic pollution, since its concentration in the whole body homogenates was below the limit of detection. Our findings show that changes in antioxidant enzymes and GST activity can be used as parameters in environmental monitoring programs.",
publisher = "Tubitak Scientific & Technical Research Council Turkey, Ankara",
journal = "Turkish Journal of Biology",
title = "Antioxidant enzymes and GST activity in natural populations of Holandriana holandrii from the Bosna River",
volume = "36",
number = "4",
pages = "477-485",
doi = "10.3906/biy-1111-43"
}

Vrankovic, J., Labus-Blagojevic, S., Csanyi, B., Makovinska, J., Cvetković, O., Gačić, Z., Blagojevic, D.,& Paunović, M.. (2012). Antioxidant enzymes and GST activity in natural populations of Holandriana holandrii from the Bosna River. in Turkish Journal of Biology
Tubitak Scientific & Technical Research Council Turkey, Ankara., 36(4), 477-485.
https://doi.org/10.3906/biy-1111-43

Vrankovic J, Labus-Blagojevic S, Csanyi B, Makovinska J, Cvetković O, Gačić Z, Blagojevic D, Paunović M. Antioxidant enzymes and GST activity in natural populations of Holandriana holandrii from the Bosna River. in Turkish Journal of Biology. 2012;36(4):477-485.
doi:10.3906/biy-1111-43 .

Vrankovic, Jelena, Labus-Blagojevic, Svetlana, Csanyi, Bela, Makovinska, Jarmila, Cvetković, Olga, Gačić, Zoran, Blagojevic, Dusko, Paunović, Momir, "Antioxidant enzymes and GST activity in natural populations of Holandriana holandrii from the Bosna River" in Turkish Journal of Biology, 36, no. 4 (2012):477-485,
https://doi.org/10.3906/biy-1111-43 . .