TY  - JOUR
AU  - Kostić, Aleksandar Ž
AU  - Milinčić, Danijel D.
AU  - Špirović Trifunović, Bojana
AU  - Nedić, Nebojša
AU  - Gašić, Uroš M.
AU  - Tešić, Živoslav Lj.
AU  - Stanojević, Sladjana P.
AU  - Pešić, Mirjana B.
PY  - 2023
UR  - https://www.mdpi.com/2076-3921/12/7/1424
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/6406
AB  - The aim of this study was to compile a detailed phytochemical profile and assess the antioxidant properties of bee-collected pollen (PBP) obtained from corn poppy (Papaver rhoeas L.) plants. To achieve this, a lipid fraction was prepared for quantifying fatty acids using GC-FID. Extractable and alkaline-hydrolysable PBP fractions (obtained from a defatted sample) were used to determine the qualitative and quantitative profiles of phenolic compounds, phenylamides and alkaloids using UHPLC/Q-ToF-MS. Additionally, various spectrophotometric assays (TAC, FRP, CUPRAC, DPPH⦁) were conducted to evaluate the antioxidant properties. Phenolic compounds were more present in the extractable fraction than in the alkaline-hydrolysable fraction. Luteolin was the predominant compound in the extractable fraction, followed by tricetin and various derivatives of kaempferol. This study presents one of the first reports on the quantification of tricetin aglycone outside the Myrtaceae plant family. The alkaline-hydrolysable fraction exhibited a different phenolic profile, with a significantly lower amount of phenolics. Kaempferol/derivatives, specific compounds like ferulic and 5-carboxyvanillic acids, and (epi)catechin 3-O-gallate were the predominant compounds in this fraction. Regarding phenylamides, the extractable fraction demonstrated a diverse range of these bioactive compounds, with a notable abundance of different spermine derivatives. In contrast, the hydrolysable fraction contained six spermine derivatives and one spermidine derivative. The examined fractions also revealed the presence of seventeen different alkaloids, belonging to the benzylisoquinoline, berberine and isoquinoline classes. The fatty-acid profile confirmed the prevalence of unsaturated fatty acids. Furthermore, both fractions exhibited significant antioxidant activity, with the extractable fraction showing particularly high activity. Among the assays conducted, the CUPRAC assay highlighted the exceptional ability of PBP’s bioactive compounds to reduce cupric ions.
T2  - Antioxidants
T2  - Antioxidants
T1  - Monofloral Corn Poppy Bee-Collected Pollen—A Detailed Insight into Its Phytochemical Composition and Antioxidant Properties
IS  - 7
SP  - 1424
VL  - 12
DO  - 10.3390/antiox12071424
ER  - 

@article{
author = "Kostić, Aleksandar Ž and Milinčić, Danijel D. and Špirović Trifunović, Bojana and Nedić, Nebojša and Gašić, Uroš M. and Tešić, Živoslav Lj. and Stanojević, Sladjana P. and Pešić, Mirjana B.",
year = "2023",
abstract = "The aim of this study was to compile a detailed phytochemical profile and assess the antioxidant properties of bee-collected pollen (PBP) obtained from corn poppy (Papaver rhoeas L.) plants. To achieve this, a lipid fraction was prepared for quantifying fatty acids using GC-FID. Extractable and alkaline-hydrolysable PBP fractions (obtained from a defatted sample) were used to determine the qualitative and quantitative profiles of phenolic compounds, phenylamides and alkaloids using UHPLC/Q-ToF-MS. Additionally, various spectrophotometric assays (TAC, FRP, CUPRAC, DPPH⦁) were conducted to evaluate the antioxidant properties. Phenolic compounds were more present in the extractable fraction than in the alkaline-hydrolysable fraction. Luteolin was the predominant compound in the extractable fraction, followed by tricetin and various derivatives of kaempferol. This study presents one of the first reports on the quantification of tricetin aglycone outside the Myrtaceae plant family. The alkaline-hydrolysable fraction exhibited a different phenolic profile, with a significantly lower amount of phenolics. Kaempferol/derivatives, specific compounds like ferulic and 5-carboxyvanillic acids, and (epi)catechin 3-O-gallate were the predominant compounds in this fraction. Regarding phenylamides, the extractable fraction demonstrated a diverse range of these bioactive compounds, with a notable abundance of different spermine derivatives. In contrast, the hydrolysable fraction contained six spermine derivatives and one spermidine derivative. The examined fractions also revealed the presence of seventeen different alkaloids, belonging to the benzylisoquinoline, berberine and isoquinoline classes. The fatty-acid profile confirmed the prevalence of unsaturated fatty acids. Furthermore, both fractions exhibited significant antioxidant activity, with the extractable fraction showing particularly high activity. Among the assays conducted, the CUPRAC assay highlighted the exceptional ability of PBP’s bioactive compounds to reduce cupric ions.",
journal = "Antioxidants, Antioxidants",
title = "Monofloral Corn Poppy Bee-Collected Pollen—A Detailed Insight into Its Phytochemical Composition and Antioxidant Properties",
number = "7",
pages = "1424",
volume = "12",
doi = "10.3390/antiox12071424"
}

Kostić, A. Ž., Milinčić, D. D., Špirović Trifunović, B., Nedić, N., Gašić, U. M., Tešić, Ž. Lj., Stanojević, S. P.,& Pešić, M. B.. (2023). Monofloral Corn Poppy Bee-Collected Pollen—A Detailed Insight into Its Phytochemical Composition and Antioxidant Properties. in Antioxidants, 12(7), 1424.
https://doi.org/10.3390/antiox12071424

Kostić AŽ, Milinčić DD, Špirović Trifunović B, Nedić N, Gašić UM, Tešić ŽL, Stanojević SP, Pešić MB. Monofloral Corn Poppy Bee-Collected Pollen—A Detailed Insight into Its Phytochemical Composition and Antioxidant Properties. in Antioxidants. 2023;12(7):1424.
doi:10.3390/antiox12071424 .

Kostić, Aleksandar Ž, Milinčić, Danijel D., Špirović Trifunović, Bojana, Nedić, Nebojša, Gašić, Uroš M., Tešić, Živoslav Lj., Stanojević, Sladjana P., Pešić, Mirjana B., "Monofloral Corn Poppy Bee-Collected Pollen—A Detailed Insight into Its Phytochemical Composition and Antioxidant Properties" in Antioxidants, 12, no. 7 (2023):1424,
https://doi.org/10.3390/antiox12071424 . .

TY  - JOUR
AU  - Kostić, Aleksandar Ž.
AU  - Mačukanović-Jocić, Marina P.
AU  - Milinčić, Danijel D.
AU  - Petrović, Jovana D.
AU  - Gašić, Uroš M.
AU  - Gligorijević, Nevenka N.
AU  - Jarić, Snežana V.
AU  - Soković, Marina D.
AU  - Tešić, Živoslav Lj.
AU  - Pešić, Mirjana B.
PY  - 2022
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/6046
AB  - The current study aimed to phytochemically characterize (including a detailed phenolic profile) two endemic Balkan's species (Hieracium waldsteinii and Onosma stellulata) and determine their possible application as a source of natural antioxidant and antimicrobial agents. The main phenolic compound in both species (in all examined parts) was chlorogenic acid. Eriodictyol, genistein and naringenin were quantified only in H. waldsteinii while isorhamnetin-3-O-rutinoside and sinapic acid were characteristic for O. stellulata. The highest antioxidant activity (98 mg AAE/g dry weight for TAC assay) was ascribed to the flower extract of H. waldsteinii while the lowest results (∼4.3 mg AAE/g dry weight for FRP assay) were exhibited by the extracts obtained from the plant's stem. Antimicrobial assays showed moderate antibacterial, i. e., moderate/strong activity against several tested fungi (in particular Trichoderma viride). Correlation analysis revealed strong positive connection between phenolic compounds and reducing power of extracts as well as between total phenolic and flavonoid content and the obtained minimal inhibitory concentration recorded in antibacterial assays.
PB  - John Wiley and Sons Inc
T2  - Chemistry and Biodiversity
T1  - Hieracium waldsteinii (Asteraceae) and Onosma stellulata (Boraginaceae) as a Source of Antioxidant and Antimicrobial Agents
VL  - N/A
DO  - 10.1002/cbdv.202200069
ER  - 

@article{
author = "Kostić, Aleksandar Ž. and Mačukanović-Jocić, Marina P. and Milinčić, Danijel D. and Petrović, Jovana D. and Gašić, Uroš M. and Gligorijević, Nevenka N. and Jarić, Snežana V. and Soković, Marina D. and Tešić, Živoslav Lj. and Pešić, Mirjana B.",
year = "2022",
abstract = "The current study aimed to phytochemically characterize (including a detailed phenolic profile) two endemic Balkan's species (Hieracium waldsteinii and Onosma stellulata) and determine their possible application as a source of natural antioxidant and antimicrobial agents. The main phenolic compound in both species (in all examined parts) was chlorogenic acid. Eriodictyol, genistein and naringenin were quantified only in H. waldsteinii while isorhamnetin-3-O-rutinoside and sinapic acid were characteristic for O. stellulata. The highest antioxidant activity (98 mg AAE/g dry weight for TAC assay) was ascribed to the flower extract of H. waldsteinii while the lowest results (∼4.3 mg AAE/g dry weight for FRP assay) were exhibited by the extracts obtained from the plant's stem. Antimicrobial assays showed moderate antibacterial, i. e., moderate/strong activity against several tested fungi (in particular Trichoderma viride). Correlation analysis revealed strong positive connection between phenolic compounds and reducing power of extracts as well as between total phenolic and flavonoid content and the obtained minimal inhibitory concentration recorded in antibacterial assays.",
publisher = "John Wiley and Sons Inc",
journal = "Chemistry and Biodiversity",
title = "Hieracium waldsteinii (Asteraceae) and Onosma stellulata (Boraginaceae) as a Source of Antioxidant and Antimicrobial Agents",
volume = "N/A",
doi = "10.1002/cbdv.202200069"
}

Kostić, A. Ž., Mačukanović-Jocić, M. P., Milinčić, D. D., Petrović, J. D., Gašić, U. M., Gligorijević, N. N., Jarić, S. V., Soković, M. D., Tešić, Ž. Lj.,& Pešić, M. B.. (2022). Hieracium waldsteinii (Asteraceae) and Onosma stellulata (Boraginaceae) as a Source of Antioxidant and Antimicrobial Agents. in Chemistry and Biodiversity
John Wiley and Sons Inc., N/A.
https://doi.org/10.1002/cbdv.202200069

Kostić AŽ, Mačukanović-Jocić MP, Milinčić DD, Petrović JD, Gašić UM, Gligorijević NN, Jarić SV, Soković MD, Tešić ŽL, Pešić MB. Hieracium waldsteinii (Asteraceae) and Onosma stellulata (Boraginaceae) as a Source of Antioxidant and Antimicrobial Agents. in Chemistry and Biodiversity. 2022;N/A.
doi:10.1002/cbdv.202200069 .

Kostić, Aleksandar Ž., Mačukanović-Jocić, Marina P., Milinčić, Danijel D., Petrović, Jovana D., Gašić, Uroš M., Gligorijević, Nevenka N., Jarić, Snežana V., Soković, Marina D., Tešić, Živoslav Lj., Pešić, Mirjana B., "Hieracium waldsteinii (Asteraceae) and Onosma stellulata (Boraginaceae) as a Source of Antioxidant and Antimicrobial Agents" in Chemistry and Biodiversity, N/A (2022),
https://doi.org/10.1002/cbdv.202200069 . .