TY  - JOUR
AU  - Zdunić, Gordana
AU  - Gođevac, Dejan
AU  - Milenković, Marina
AU  - Vučićević, D.
AU  - Šavikin, Katarina
AU  - Menković, Nebojša
AU  - Petrović, S.
PY  - 2009
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/625
AB  - Oil extracts of Hypericum perforatum L. (Oleum Hyperici) were prepared in three different ways according to the prescriptions from traditional medicine. Variability of constituents and biological activity were evaluated in the obtained oil extracts. The carrageenan-induced rat paw edema test has been used for screening the antiinflammatory activity, while the indomethacin-induced rat gastric mucosa damage test was used for evaluation of gastroprotective activity. All examined oil extracts possessed antiinflammatory and gastroprotective activity. Among them, the oil extract prepared by maceration with 96% ethanol, followed by extraction with sunflower oil by heating on a water bath (extract 2), in a dose of 1.25 mL/kg p.o., exhibited the highest antiinflammatory effect (95.24 ± 11.66%) and gastroprotective activity (gastric damage score of 0.21 ± 0.12). The same oil extract had the highest content of quercetin and I3,II8-biapigenin (129 ± 9 μg/mL and 52 ± 4 μg/mL, respectively). Quercetin and I3,II8-biapigenin exhibited antiinflammatory activity similar to those of indomethacin as well as significant gastroprotective activity. The results provide evidence for the usage of Oleum Hyperici as an anti-inflammatory and gastroprotective agent, which has been based previously only on ethnopharmacological claims. Copyright
T2  - Phytotherapy Research
T1  - Evaluation of Hypericum perforatum oil extracts for an antiinflammatory and gastroprotective activity in rats
VL  - 23
IS  - 11
SP  - 1559
EP  - 1564
DO  - 10.1002/ptr.2809
ER  - 

@article{
author = "Zdunić, Gordana and Gođevac, Dejan and Milenković, Marina and Vučićević, D. and Šavikin, Katarina and Menković, Nebojša and Petrović, S.",
year = "2009",
abstract = "Oil extracts of Hypericum perforatum L. (Oleum Hyperici) were prepared in three different ways according to the prescriptions from traditional medicine. Variability of constituents and biological activity were evaluated in the obtained oil extracts. The carrageenan-induced rat paw edema test has been used for screening the antiinflammatory activity, while the indomethacin-induced rat gastric mucosa damage test was used for evaluation of gastroprotective activity. All examined oil extracts possessed antiinflammatory and gastroprotective activity. Among them, the oil extract prepared by maceration with 96% ethanol, followed by extraction with sunflower oil by heating on a water bath (extract 2), in a dose of 1.25 mL/kg p.o., exhibited the highest antiinflammatory effect (95.24 ± 11.66%) and gastroprotective activity (gastric damage score of 0.21 ± 0.12). The same oil extract had the highest content of quercetin and I3,II8-biapigenin (129 ± 9 μg/mL and 52 ± 4 μg/mL, respectively). Quercetin and I3,II8-biapigenin exhibited antiinflammatory activity similar to those of indomethacin as well as significant gastroprotective activity. The results provide evidence for the usage of Oleum Hyperici as an anti-inflammatory and gastroprotective agent, which has been based previously only on ethnopharmacological claims. Copyright",
journal = "Phytotherapy Research",
title = "Evaluation of Hypericum perforatum oil extracts for an antiinflammatory and gastroprotective activity in rats",
volume = "23",
number = "11",
pages = "1559-1564",
doi = "10.1002/ptr.2809"
}

Zdunić, G., Gođevac, D., Milenković, M., Vučićević, D., Šavikin, K., Menković, N.,& Petrović, S.. (2009). Evaluation of Hypericum perforatum oil extracts for an antiinflammatory and gastroprotective activity in rats. in Phytotherapy Research, 23(11), 1559-1564.
https://doi.org/10.1002/ptr.2809

Zdunić G, Gođevac D, Milenković M, Vučićević D, Šavikin K, Menković N, Petrović S. Evaluation of Hypericum perforatum oil extracts for an antiinflammatory and gastroprotective activity in rats. in Phytotherapy Research. 2009;23(11):1559-1564.
doi:10.1002/ptr.2809 .

Zdunić, Gordana, Gođevac, Dejan, Milenković, Marina, Vučićević, D., Šavikin, Katarina, Menković, Nebojša, Petrović, S., "Evaluation of Hypericum perforatum oil extracts for an antiinflammatory and gastroprotective activity in rats" in Phytotherapy Research, 23, no. 11 (2009):1559-1564,
https://doi.org/10.1002/ptr.2809 . .

TY  - JOUR
AU  - Rakić, S.
AU  - Petrović, S.
AU  - Kukić, J.
AU  - Jadranin, Milka
AU  - Tešević, Vele
AU  - Povrenović, D.
AU  - Šiler-Marinković, S.
PY  - 2007
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/362
AB  - The aim of the present work was to investigate and compare phenolic compounds and antioxidant activity of methanol extracts of Quercus robur and Quercus cerris acorn kernels obtained before and after thermal treatment. Content of total phenolics, tannins, non-tannin phenolics and flavonoids was determined spectrophotometrically and content of gallic acid with HPLC. Antioxidant activity of the samples was assayed through FRAP (Ferric Reducing Antioxidant Power), DPPH scavenging test and inhibition of Fe2+/ascorbate induced lipid peroxidation. Extracts of native and thermally treated kernels showed high antioxidant activity, with extracts of thermally treated kernels being more active than extracts of native ones. Hydrolysable tannins and gallic acid were identified in all samples. Non-tannin phenolics, including gallic acid, were present in significantly higher quantities in thermally treated samples, whilst tannin content decreased. This indicates that during thermal treatment hydrolysable tannins were degraded. As the result of this degradation and consequent increase of non-tannin phenolics content, and amongst them especially gallic acid, thermally treated samples possess higher antioxidant activity than do the native ones. The obtained results have provided further grounds for establishing Q. robur and Q. cerris acorn kernels as a source for functional food preparation.
PB  - Elsevier
T2  - Food Chemistry
T1  - Influence of thermal treatment on phenolic compounds and antioxidant properties of oak acorns from Serbia
VL  - 104
IS  - 2
SP  - 830
EP  - 834
DO  - 10.1016/j.foodchem.2007.01.025
ER  - 

@article{
author = "Rakić, S. and Petrović, S. and Kukić, J. and Jadranin, Milka and Tešević, Vele and Povrenović, D. and Šiler-Marinković, S.",
year = "2007",
abstract = "The aim of the present work was to investigate and compare phenolic compounds and antioxidant activity of methanol extracts of Quercus robur and Quercus cerris acorn kernels obtained before and after thermal treatment. Content of total phenolics, tannins, non-tannin phenolics and flavonoids was determined spectrophotometrically and content of gallic acid with HPLC. Antioxidant activity of the samples was assayed through FRAP (Ferric Reducing Antioxidant Power), DPPH scavenging test and inhibition of Fe2+/ascorbate induced lipid peroxidation. Extracts of native and thermally treated kernels showed high antioxidant activity, with extracts of thermally treated kernels being more active than extracts of native ones. Hydrolysable tannins and gallic acid were identified in all samples. Non-tannin phenolics, including gallic acid, were present in significantly higher quantities in thermally treated samples, whilst tannin content decreased. This indicates that during thermal treatment hydrolysable tannins were degraded. As the result of this degradation and consequent increase of non-tannin phenolics content, and amongst them especially gallic acid, thermally treated samples possess higher antioxidant activity than do the native ones. The obtained results have provided further grounds for establishing Q. robur and Q. cerris acorn kernels as a source for functional food preparation.",
publisher = "Elsevier",
journal = "Food Chemistry",
title = "Influence of thermal treatment on phenolic compounds and antioxidant properties of oak acorns from Serbia",
volume = "104",
number = "2",
pages = "830-834",
doi = "10.1016/j.foodchem.2007.01.025"
}

Rakić, S., Petrović, S., Kukić, J., Jadranin, M., Tešević, V., Povrenović, D.,& Šiler-Marinković, S.. (2007). Influence of thermal treatment on phenolic compounds and antioxidant properties of oak acorns from Serbia. in Food Chemistry
Elsevier., 104(2), 830-834.
https://doi.org/10.1016/j.foodchem.2007.01.025

Rakić S, Petrović S, Kukić J, Jadranin M, Tešević V, Povrenović D, Šiler-Marinković S. Influence of thermal treatment on phenolic compounds and antioxidant properties of oak acorns from Serbia. in Food Chemistry. 2007;104(2):830-834.
doi:10.1016/j.foodchem.2007.01.025 .

Rakić, S., Petrović, S., Kukić, J., Jadranin, Milka, Tešević, Vele, Povrenović, D., Šiler-Marinković, S., "Influence of thermal treatment on phenolic compounds and antioxidant properties of oak acorns from Serbia" in Food Chemistry, 104, no. 2 (2007):830-834,
https://doi.org/10.1016/j.foodchem.2007.01.025 . .