Mickovski-Stefanović, Violeta

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  • Mickovski-Stefanović, Violeta (2)
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Author's Bibliography

Antioxidant Activity and Multi-Elemental Analysis of Dark Chocolate

Jaćimović, Simona; Popović-Djordjević, Jelena; Sarić, Beka; Krstić, Aleksandar; Mickovski-Stefanović, Violeta; Pantelić, Nebojša Đ

(2022)

TY  - JOUR
AU  - Jaćimović, Simona
AU  - Popović-Djordjević, Jelena
AU  - Sarić, Beka
AU  - Krstić, Aleksandar
AU  - Mickovski-Stefanović, Violeta
AU  - Pantelić, Nebojša Đ
PY  - 2022
UR  - https://www.mdpi.com/2304-8158/11/10/1445
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/6390
AB  - Cocoa beans are part of the cocoa plant fruit (Theobroma cacao L.) used to prepare various products such as chocolate, cocoa butter, jelly, liqueurs, cosmetics, etc. Dark chocolate is consumed worldwide by different populations and is known for its good taste, making it one of the most favoured food products. This work aimed to determine the content of total polyphenols (TPC), total flavonoids (TFC), and the antioxidant potential measured through the ability to scavenge DPPH free radicals (DPPH), ferric reducing power (FRAP), and total antioxidant capacity (TAC), as well as major and trace elements contained in twelve commercially available dark chocolate samples, with cocoa content ranging from 40% to 99%. The total polyphenols content ranged between 10.55 and 39.82 mg/g GAE, while the total flavonoid content was from 10.04 to 37.85 mg/g CE. All applied antioxidant assays indicate that the sample with the highest cocoa percentage shows the greatest antioxidant activity (DPPH: 48.34% of inhibition; FRAP: 89.00 mg/g GAE; TAC: 83.86 mg/g AAE). Statistical methods were applied to establish the differences between the samples concerning TPC, TFC, DPPH, FRAP and TAC, as well as to differentiate the samples according to the mineral content. The results indicated that the differences in TPC and TFC between different samples depended on the cocoa content and the addition of dried fruit pieces. A good correlation between antioxidant potency composite index (ACI) and declared cocoa content was noticed (R2 = 0.8034), indicating that the declared percentage of cocoa is a reliable indicator for antioxidant activity of analysed dark chocolate samples. The nutritional evaluation proved that the studied chocolate samples were an excellent source of Mg, Fe, Mn and Cu.
T2  - Foods
T2  - Foods
T1  - Antioxidant Activity and Multi-Elemental Analysis of Dark Chocolate
IS  - 10
SP  - 1445
VL  - 11
DO  - 10.3390/foods11101445
ER  - 
@article{
author = "Jaćimović, Simona and Popović-Djordjević, Jelena and Sarić, Beka and Krstić, Aleksandar and Mickovski-Stefanović, Violeta and Pantelić, Nebojša Đ",
year = "2022",
abstract = "Cocoa beans are part of the cocoa plant fruit (Theobroma cacao L.) used to prepare various products such as chocolate, cocoa butter, jelly, liqueurs, cosmetics, etc. Dark chocolate is consumed worldwide by different populations and is known for its good taste, making it one of the most favoured food products. This work aimed to determine the content of total polyphenols (TPC), total flavonoids (TFC), and the antioxidant potential measured through the ability to scavenge DPPH free radicals (DPPH), ferric reducing power (FRAP), and total antioxidant capacity (TAC), as well as major and trace elements contained in twelve commercially available dark chocolate samples, with cocoa content ranging from 40% to 99%. The total polyphenols content ranged between 10.55 and 39.82 mg/g GAE, while the total flavonoid content was from 10.04 to 37.85 mg/g CE. All applied antioxidant assays indicate that the sample with the highest cocoa percentage shows the greatest antioxidant activity (DPPH: 48.34% of inhibition; FRAP: 89.00 mg/g GAE; TAC: 83.86 mg/g AAE). Statistical methods were applied to establish the differences between the samples concerning TPC, TFC, DPPH, FRAP and TAC, as well as to differentiate the samples according to the mineral content. The results indicated that the differences in TPC and TFC between different samples depended on the cocoa content and the addition of dried fruit pieces. A good correlation between antioxidant potency composite index (ACI) and declared cocoa content was noticed (R2 = 0.8034), indicating that the declared percentage of cocoa is a reliable indicator for antioxidant activity of analysed dark chocolate samples. The nutritional evaluation proved that the studied chocolate samples were an excellent source of Mg, Fe, Mn and Cu.",
journal = "Foods, Foods",
title = "Antioxidant Activity and Multi-Elemental Analysis of Dark Chocolate",
number = "10",
pages = "1445",
volume = "11",
doi = "10.3390/foods11101445"
}
Jaćimović, S., Popović-Djordjević, J., Sarić, B., Krstić, A., Mickovski-Stefanović, V.,& Pantelić, N. Đ.. (2022). Antioxidant Activity and Multi-Elemental Analysis of Dark Chocolate. in Foods, 11(10), 1445.
https://doi.org/10.3390/foods11101445
Jaćimović S, Popović-Djordjević J, Sarić B, Krstić A, Mickovski-Stefanović V, Pantelić NĐ. Antioxidant Activity and Multi-Elemental Analysis of Dark Chocolate. in Foods. 2022;11(10):1445.
doi:10.3390/foods11101445 .
Jaćimović, Simona, Popović-Djordjević, Jelena, Sarić, Beka, Krstić, Aleksandar, Mickovski-Stefanović, Violeta, Pantelić, Nebojša Đ, "Antioxidant Activity and Multi-Elemental Analysis of Dark Chocolate" in Foods, 11, no. 10 (2022):1445,
https://doi.org/10.3390/foods11101445 . .
58
9

Examination of the Correlation Stage Development of Wheat Varieties Pobeda and Distance from the Industrial Zone on the Dynamics of the Adoption Heavy Metals in Some Parts of the Plant

Rajković, Miloš; Mickovski-Stefanović, Violeta; Glamočlija, Djordje; Stojanović, Mirjana

(2014)

TY  - CONF
AU  - Rajković, Miloš
AU  - Mickovski-Stefanović, Violeta
AU  - Glamočlija, Djordje
AU  - Stojanović, Mirjana
PY  - 2014
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5568
AB  - In selected parts of the wheat plant variety Pobeda in various stages of growth examined the content of heavy metals. Samples were taken from the fields and regions are at different distances from the oil refinery in Pančevo. Determination of heavy metals was carried out by atomic absorption spectrophotometry in the flame acetylene/air, Research on the effects of varieties, stage of wheat development and distance from the industrial zone on the dynamics of the adoption of heavy metals in some parts of the wheat plant (root and stem) was carried out on experimental fields of the Institute ”Tamiš” in the fields of Old Tamiš and Vojlovica. The results showed significant differences between the distance from the refinery to the content of heay metals in different parts of the wheat plant.
AB  - Na odabranim delovima biljke pšenice sorte Pobeda u različitim fenofazama ispitivan je sadržaj teških metala. Uzorci su uzimani sa polja i regiona koji su na različitoj udaljenosti od Rafinerije nafte u Pančevu. Ispitivanje teških metala je obavljeno primenom atomske apsorpcione spektrofotometrije. Istraživanja korelacije faze razvoja pšenice i udaljenosti od industrijske zone na dinamiku usvajanja teških metala u pojedinim delovima biljke (koren i stablo) obavljeno je na uzorku pšenice sorte Pobeda sa Oglednog polja Instituta „Tamiš”, polja Starog Tamiša i Vojlovice. Dobijeni rezultati prikazali su značajnost razlike između udaljenosti od Rafinerije u odnosu na sadržaj teških metala u različitim delovima biljke pšenice.
C3  - 19. Savetovanje o biotehnologiji sa međunarodnim učešćem, Čačak, 07.- 08. 03. 2014.
T1  - Examination of the Correlation Stage Development of Wheat Varieties Pobeda and Distance from the Industrial Zone on the Dynamics of the Adoption Heavy Metals in Some Parts of the Plant
T1  - Ispitivanje korelacije faze razvoja pšenice sorte Pobeda i udaljenosti od industrijske zone na dinamiku usvajanja teških metala u pojedinim delovima biljke
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_5568
ER  - 
@conference{
author = "Rajković, Miloš and Mickovski-Stefanović, Violeta and Glamočlija, Djordje and Stojanović, Mirjana",
year = "2014",
abstract = "In selected parts of the wheat plant variety Pobeda in various stages of growth examined the content of heavy metals. Samples were taken from the fields and regions are at different distances from the oil refinery in Pančevo. Determination of heavy metals was carried out by atomic absorption spectrophotometry in the flame acetylene/air, Research on the effects of varieties, stage of wheat development and distance from the industrial zone on the dynamics of the adoption of heavy metals in some parts of the wheat plant (root and stem) was carried out on experimental fields of the Institute ”Tamiš” in the fields of Old Tamiš and Vojlovica. The results showed significant differences between the distance from the refinery to the content of heay metals in different parts of the wheat plant., Na odabranim delovima biljke pšenice sorte Pobeda u različitim fenofazama ispitivan je sadržaj teških metala. Uzorci su uzimani sa polja i regiona koji su na različitoj udaljenosti od Rafinerije nafte u Pančevu. Ispitivanje teških metala je obavljeno primenom atomske apsorpcione spektrofotometrije. Istraživanja korelacije faze razvoja pšenice i udaljenosti od industrijske zone na dinamiku usvajanja teških metala u pojedinim delovima biljke (koren i stablo) obavljeno je na uzorku pšenice sorte Pobeda sa Oglednog polja Instituta „Tamiš”, polja Starog Tamiša i Vojlovice. Dobijeni rezultati prikazali su značajnost razlike između udaljenosti od Rafinerije u odnosu na sadržaj teških metala u različitim delovima biljke pšenice.",
journal = "19. Savetovanje o biotehnologiji sa međunarodnim učešćem, Čačak, 07.- 08. 03. 2014.",
title = "Examination of the Correlation Stage Development of Wheat Varieties Pobeda and Distance from the Industrial Zone on the Dynamics of the Adoption Heavy Metals in Some Parts of the Plant, Ispitivanje korelacije faze razvoja pšenice sorte Pobeda i udaljenosti od industrijske zone na dinamiku usvajanja teških metala u pojedinim delovima biljke",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_5568"
}
Rajković, M., Mickovski-Stefanović, V., Glamočlija, D.,& Stojanović, M.. (2014). Examination of the Correlation Stage Development of Wheat Varieties Pobeda and Distance from the Industrial Zone on the Dynamics of the Adoption Heavy Metals in Some Parts of the Plant. in 19. Savetovanje o biotehnologiji sa međunarodnim učešćem, Čačak, 07.- 08. 03. 2014..
https://hdl.handle.net/21.15107/rcub_agrospace_5568
Rajković M, Mickovski-Stefanović V, Glamočlija D, Stojanović M. Examination of the Correlation Stage Development of Wheat Varieties Pobeda and Distance from the Industrial Zone on the Dynamics of the Adoption Heavy Metals in Some Parts of the Plant. in 19. Savetovanje o biotehnologiji sa međunarodnim učešćem, Čačak, 07.- 08. 03. 2014.. 2014;.
https://hdl.handle.net/21.15107/rcub_agrospace_5568 .
Rajković, Miloš, Mickovski-Stefanović, Violeta, Glamočlija, Djordje, Stojanović, Mirjana, "Examination of the Correlation Stage Development of Wheat Varieties Pobeda and Distance from the Industrial Zone on the Dynamics of the Adoption Heavy Metals in Some Parts of the Plant" in 19. Savetovanje o biotehnologiji sa međunarodnim učešćem, Čačak, 07.- 08. 03. 2014. (2014),
https://hdl.handle.net/21.15107/rcub_agrospace_5568 .