TY  - JOUR
AU  - Mandić, Boris M.
AU  - Vlajić, Marina D.
AU  - Trifunović, Snežana
AU  - Simić, Milena
AU  - Vujisić, Ljubodrag V.
AU  - Vucković, Ivan M.
AU  - Novaković, Miroslav
AU  - Nikolić-Mandić, Snežana D.
AU  - Tešević, Vele
AU  - Vajs, Vlatka
AU  - Milosavljević, Slobodan
PY  - 2015
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/2412
AB  - Procedure for isolation of pyrrolizidine alkaloids (PAs) from Rindera umbellata Bunge plant species was optimised. Different extraction media (methanol, ethanol and sulphuric acid), concentration and volume of sulphuric acid, pH of PA solution for alkaline extraction, extraction time and techniques (maceration, ultrasonic and overhead rotary mixer assisted extraction) were investigated. The yields of six PAs (7-angeloyl heliotridane, 7-angeloyl heliotridine, lindelofine, 7-angeloyl rinderine, punctanecine and heliosupine) were monitored by GC-MS/FID. The best results for the isolation all of six PAs were obtained when the extraction was performed with 1M sulphuric acid (30mL per 1.00g of dried sample) by overhead rotary mixer during three days. Optimal pH value for alkaline extraction of PAs with CH2Cl2 was 9, and the extraction should be performed with four portions of 30mL of CH2Cl2. This procedure could be also useful for a plant sample preparation for GC and LC analyses of PAs.
PB  - Taylor & Francis Ltd, Abingdon
T2  - Natural Product Research
T1  - Optimisation of isolation procedure for pyrrolizidine alkaloids from Rindera umbellata Bunge
VL  - 29
IS  - 9
SP  - 887
EP  - 890
DO  - 10.1080/14786419.2014.991929
ER  - 

@article{
author = "Mandić, Boris M. and Vlajić, Marina D. and Trifunović, Snežana and Simić, Milena and Vujisić, Ljubodrag V. and Vucković, Ivan M. and Novaković, Miroslav and Nikolić-Mandić, Snežana D. and Tešević, Vele and Vajs, Vlatka and Milosavljević, Slobodan",
year = "2015",
abstract = "Procedure for isolation of pyrrolizidine alkaloids (PAs) from Rindera umbellata Bunge plant species was optimised. Different extraction media (methanol, ethanol and sulphuric acid), concentration and volume of sulphuric acid, pH of PA solution for alkaline extraction, extraction time and techniques (maceration, ultrasonic and overhead rotary mixer assisted extraction) were investigated. The yields of six PAs (7-angeloyl heliotridane, 7-angeloyl heliotridine, lindelofine, 7-angeloyl rinderine, punctanecine and heliosupine) were monitored by GC-MS/FID. The best results for the isolation all of six PAs were obtained when the extraction was performed with 1M sulphuric acid (30mL per 1.00g of dried sample) by overhead rotary mixer during three days. Optimal pH value for alkaline extraction of PAs with CH2Cl2 was 9, and the extraction should be performed with four portions of 30mL of CH2Cl2. This procedure could be also useful for a plant sample preparation for GC and LC analyses of PAs.",
publisher = "Taylor & Francis Ltd, Abingdon",
journal = "Natural Product Research",
title = "Optimisation of isolation procedure for pyrrolizidine alkaloids from Rindera umbellata Bunge",
volume = "29",
number = "9",
pages = "887-890",
doi = "10.1080/14786419.2014.991929"
}

Mandić, B. M., Vlajić, M. D., Trifunović, S., Simić, M., Vujisić, L. V., Vucković, I. M., Novaković, M., Nikolić-Mandić, S. D., Tešević, V., Vajs, V.,& Milosavljević, S.. (2015). Optimisation of isolation procedure for pyrrolizidine alkaloids from Rindera umbellata Bunge. in Natural Product Research
Taylor & Francis Ltd, Abingdon., 29(9), 887-890.
https://doi.org/10.1080/14786419.2014.991929

Mandić BM, Vlajić MD, Trifunović S, Simić M, Vujisić LV, Vucković IM, Novaković M, Nikolić-Mandić SD, Tešević V, Vajs V, Milosavljević S. Optimisation of isolation procedure for pyrrolizidine alkaloids from Rindera umbellata Bunge. in Natural Product Research. 2015;29(9):887-890.
doi:10.1080/14786419.2014.991929 .

Mandić, Boris M., Vlajić, Marina D., Trifunović, Snežana, Simić, Milena, Vujisić, Ljubodrag V., Vucković, Ivan M., Novaković, Miroslav, Nikolić-Mandić, Snežana D., Tešević, Vele, Vajs, Vlatka, Milosavljević, Slobodan, "Optimisation of isolation procedure for pyrrolizidine alkaloids from Rindera umbellata Bunge" in Natural Product Research, 29, no. 9 (2015):887-890,
https://doi.org/10.1080/14786419.2014.991929 . .

TY  - JOUR
AU  - Mandić, Boris M.
AU  - Simić, Milena
AU  - Vucković, Ivan M.
AU  - Vujisić, Ljubodrag V.
AU  - Novaković, Miroslav
AU  - Trifunović, Snežana
AU  - Nikolić-Mandić, Snežana D.
AU  - Tešević, Vele
AU  - Vajs, Vlatka
AU  - Milosavljević, Slobodan
PY  - 2013
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/1894
AB  - The examination of the aerial parts, roots, and seeds of the endemic plant Rindera umbellata is reported in this paper for the first time. Phytochemical investigation of R. umbellata led to the isolation and characterization of ten pyrrolizidine alkaloids and eleven fatty acids in the form of triglycerides. Pyrrolizidine alkaloids 1-9 were found in the aerial parts, 7 and 8 in the roots, and 6-10, together with eleven fatty acids, in the seeds of this plant species. The structures of compounds 1-10 were established based on spectroscopic studies (H-1- and C-13-NMR, 2D NMR, IR and CI-MS). After trans-esterification, methyl esters of the fatty acids were analyzed using GC-MS. The effect of lindelofine-N-oxide (7) on tubulin polymerization was determined.
PB  - MDPI, Basel
T2  - Molecules
T1  - Pyrrolizidine Alkaloids and Fatty Acids from the Endemic Plant Species Rindera umbellata and the Effect of Lindelofine-N-oxide on Tubulin Polymerization
VL  - 18
IS  - 9
SP  - 10694
EP  - 10706
DO  - 10.3390/molecules180910694
ER  - 

@article{
author = "Mandić, Boris M. and Simić, Milena and Vucković, Ivan M. and Vujisić, Ljubodrag V. and Novaković, Miroslav and Trifunović, Snežana and Nikolić-Mandić, Snežana D. and Tešević, Vele and Vajs, Vlatka and Milosavljević, Slobodan",
year = "2013",
abstract = "The examination of the aerial parts, roots, and seeds of the endemic plant Rindera umbellata is reported in this paper for the first time. Phytochemical investigation of R. umbellata led to the isolation and characterization of ten pyrrolizidine alkaloids and eleven fatty acids in the form of triglycerides. Pyrrolizidine alkaloids 1-9 were found in the aerial parts, 7 and 8 in the roots, and 6-10, together with eleven fatty acids, in the seeds of this plant species. The structures of compounds 1-10 were established based on spectroscopic studies (H-1- and C-13-NMR, 2D NMR, IR and CI-MS). After trans-esterification, methyl esters of the fatty acids were analyzed using GC-MS. The effect of lindelofine-N-oxide (7) on tubulin polymerization was determined.",
publisher = "MDPI, Basel",
journal = "Molecules",
title = "Pyrrolizidine Alkaloids and Fatty Acids from the Endemic Plant Species Rindera umbellata and the Effect of Lindelofine-N-oxide on Tubulin Polymerization",
volume = "18",
number = "9",
pages = "10694-10706",
doi = "10.3390/molecules180910694"
}

Mandić, B. M., Simić, M., Vucković, I. M., Vujisić, L. V., Novaković, M., Trifunović, S., Nikolić-Mandić, S. D., Tešević, V., Vajs, V.,& Milosavljević, S.. (2013). Pyrrolizidine Alkaloids and Fatty Acids from the Endemic Plant Species Rindera umbellata and the Effect of Lindelofine-N-oxide on Tubulin Polymerization. in Molecules
MDPI, Basel., 18(9), 10694-10706.
https://doi.org/10.3390/molecules180910694

Mandić BM, Simić M, Vucković IM, Vujisić LV, Novaković M, Trifunović S, Nikolić-Mandić SD, Tešević V, Vajs V, Milosavljević S. Pyrrolizidine Alkaloids and Fatty Acids from the Endemic Plant Species Rindera umbellata and the Effect of Lindelofine-N-oxide on Tubulin Polymerization. in Molecules. 2013;18(9):10694-10706.
doi:10.3390/molecules180910694 .

Mandić, Boris M., Simić, Milena, Vucković, Ivan M., Vujisić, Ljubodrag V., Novaković, Miroslav, Trifunović, Snežana, Nikolić-Mandić, Snežana D., Tešević, Vele, Vajs, Vlatka, Milosavljević, Slobodan, "Pyrrolizidine Alkaloids and Fatty Acids from the Endemic Plant Species Rindera umbellata and the Effect of Lindelofine-N-oxide on Tubulin Polymerization" in Molecules, 18, no. 9 (2013):10694-10706,
https://doi.org/10.3390/molecules180910694 . .

TY  - JOUR
AU  - Zdunić, Gordana
AU  - Gođevac, Dejan
AU  - Šavikin, Katarina
AU  - Novaković, Miroslav
AU  - Milosavljević, Slobodan
AU  - Petrović, Silvana
PY  - 2011
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/1542
AB  - The chemical composition and free radical scavenging properties of the MeOH extract of Hypericum richeri and its subsequent CHCl3, n-BuOH, EtOAc and aqueous extracts were investigated. Four quercetin-3-O-glycosides, three myricetin-3-O-glycosides, 3-O- and 5-O-caffeoylquinic acid, quercetin, I3,II8-biapigenin, pseudohypericin and hypericin were identified. The constituents of the extracts were quantified using HPLC-DAD (high-performance liquid chromatography-diode array detector). Isolation of the compounds from n-BuOH and EtOAc extracts was conducted by column chromatography. Antioxidant capacity of the extracts was evaluated by superoxide radical and ABTS root+ scavenging assays and inhibition of lipid peroxidation. The EtOAc extract of H. richeri was the most potent antioxidant in all experiments. Free radical scavenging compounds were identified by HPLC-DPPH root (high-performance liquid chromatography-2,2-diphenyl-1-picrylhydrazyl) post-column derivatisation method, where all phenolic compounds except I3,II8-biapigenin exhibited radical scavenging properties. This is the first report of the presence of myricetin-3-O-rutinoside, myricetin-3-O-galactoside, myricetin-3-O-glucoside, 5-O-caffeoylquinic acid and I3,II8-biapigenin in H. richeri.
PB  - Taylor & Francis Ltd, Abingdon
T2  - Natural Product Research
T1  - Isolation and identification of phenolic compounds from Hypericum richeri Vill. and their antioxidant capacity
VL  - 25
IS  - 3
SP  - 175
EP  - 187
DO  - 10.1080/14786410802401390
ER  - 

@article{
author = "Zdunić, Gordana and Gođevac, Dejan and Šavikin, Katarina and Novaković, Miroslav and Milosavljević, Slobodan and Petrović, Silvana",
year = "2011",
abstract = "The chemical composition and free radical scavenging properties of the MeOH extract of Hypericum richeri and its subsequent CHCl3, n-BuOH, EtOAc and aqueous extracts were investigated. Four quercetin-3-O-glycosides, three myricetin-3-O-glycosides, 3-O- and 5-O-caffeoylquinic acid, quercetin, I3,II8-biapigenin, pseudohypericin and hypericin were identified. The constituents of the extracts were quantified using HPLC-DAD (high-performance liquid chromatography-diode array detector). Isolation of the compounds from n-BuOH and EtOAc extracts was conducted by column chromatography. Antioxidant capacity of the extracts was evaluated by superoxide radical and ABTS root+ scavenging assays and inhibition of lipid peroxidation. The EtOAc extract of H. richeri was the most potent antioxidant in all experiments. Free radical scavenging compounds were identified by HPLC-DPPH root (high-performance liquid chromatography-2,2-diphenyl-1-picrylhydrazyl) post-column derivatisation method, where all phenolic compounds except I3,II8-biapigenin exhibited radical scavenging properties. This is the first report of the presence of myricetin-3-O-rutinoside, myricetin-3-O-galactoside, myricetin-3-O-glucoside, 5-O-caffeoylquinic acid and I3,II8-biapigenin in H. richeri.",
publisher = "Taylor & Francis Ltd, Abingdon",
journal = "Natural Product Research",
title = "Isolation and identification of phenolic compounds from Hypericum richeri Vill. and their antioxidant capacity",
volume = "25",
number = "3",
pages = "175-187",
doi = "10.1080/14786410802401390"
}

Zdunić, G., Gođevac, D., Šavikin, K., Novaković, M., Milosavljević, S.,& Petrović, S.. (2011). Isolation and identification of phenolic compounds from Hypericum richeri Vill. and their antioxidant capacity. in Natural Product Research
Taylor & Francis Ltd, Abingdon., 25(3), 175-187.
https://doi.org/10.1080/14786410802401390

Zdunić G, Gođevac D, Šavikin K, Novaković M, Milosavljević S, Petrović S. Isolation and identification of phenolic compounds from Hypericum richeri Vill. and their antioxidant capacity. in Natural Product Research. 2011;25(3):175-187.
doi:10.1080/14786410802401390 .

Zdunić, Gordana, Gođevac, Dejan, Šavikin, Katarina, Novaković, Miroslav, Milosavljević, Slobodan, Petrović, Silvana, "Isolation and identification of phenolic compounds from Hypericum richeri Vill. and their antioxidant capacity" in Natural Product Research, 25, no. 3 (2011):175-187,
https://doi.org/10.1080/14786410802401390 . .