TY  - JOUR
AU  - Zdunić, Gordana
AU  - Aradski, Ana Alimpić
AU  - Gođevac, Dejan
AU  - Živković, Jelena Č.
AU  - Laušević, Sonja Duletić
AU  - Milošević, Dijana Krstić
AU  - Šavikin, Katarina
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3446
AB  - Chokeberries (Aronia melanocarpa (Michx.) Elliot have recently become one of the most popular and widely used berry fruits, and there are numerous studies dealing with the investigation of their chemical composition and biological activities. Unlike berries, chokeberry leaves were far less investigated. Therefore, the aim of this study was to conduct a bioactivity-based analysis of chokeberry leaves collected after berries were harvested. Chemical analysis of hydroethanolic chokeberry extract and its ethyl acetate, n-butanol, and water fractions was performed. Antioxidant, hypoglycemic, and antineurodegenerative activities of the obtained samples were assessed by in vitro tests. The highest total phenolics content was found in n-butanol fraction (221.5 mg gallic acid equivalents/g dw). Fourteen compounds (six phenolic acids and eight flavonoids) were identified in the samples. Caffeoylquinic acid derivatives and quercetin glycosides were dominant phenolic compounds. The highest content of phenolic acids, as well as flavonoids, was recorded in n-butanol fraction (80.75 mg/g dw and 47.79 mg/g dw, respectively). This fraction was the most active in 2,2-diphenyl-1-picrylhydrazyl (DPPH), 2,2′-azino-bis (3-ethyl-benzothiazoline-6-sulfonic acid) (ABTS), and ferric reducing antioxidant power (FRAP) assays. Also, the n-butanol fraction was the most effective inhibitor of acetylcholinesterase (AChE) and tyrosinase (TYR) enzymes. All samples showed a better inhibitory effect on α-glucosidase enzyme with inhibition concentrations IC50 = 4.21 - 9.22 μg/mL, than α-amylase enzymes (IC50 = 14.36 - 88.61 μg/mL). Pearson’s correlation between the content of individual phenolics and the results of biological tests was performed. Thus, hyperoside and isoquercitrin showed a significant correlation with DPPH and ABTS tests, caffeoylquinic acids with FRAP test, quercetin 3-O-vicianoside with β-carotene assay, hyperoside and isoquercitrin with α-amylase inhibition activity, and isorhamnetin 3-O-rutinoside with α-glucosidase inhibition assay. Considering the obtained results, chokeberry leaves represent a valuable natural source of phenolic compounds with promising potential for the development of new products with beneficial effects on human health.
PB  - Elsevier
T2  - Industrial Crops and Products
T1  - In vitro hypoglycemic, antioxidant and antineurodegenerative activity of chokeberry (Aronia melanocarpa) leaves
VL  - 148
SP  - 112328
DO  - 10.1016/j.indcrop.2020.112328
ER  - 

@article{
author = "Zdunić, Gordana and Aradski, Ana Alimpić and Gođevac, Dejan and Živković, Jelena Č. and Laušević, Sonja Duletić and Milošević, Dijana Krstić and Šavikin, Katarina",
year = "2020",
abstract = "Chokeberries (Aronia melanocarpa (Michx.) Elliot have recently become one of the most popular and widely used berry fruits, and there are numerous studies dealing with the investigation of their chemical composition and biological activities. Unlike berries, chokeberry leaves were far less investigated. Therefore, the aim of this study was to conduct a bioactivity-based analysis of chokeberry leaves collected after berries were harvested. Chemical analysis of hydroethanolic chokeberry extract and its ethyl acetate, n-butanol, and water fractions was performed. Antioxidant, hypoglycemic, and antineurodegenerative activities of the obtained samples were assessed by in vitro tests. The highest total phenolics content was found in n-butanol fraction (221.5 mg gallic acid equivalents/g dw). Fourteen compounds (six phenolic acids and eight flavonoids) were identified in the samples. Caffeoylquinic acid derivatives and quercetin glycosides were dominant phenolic compounds. The highest content of phenolic acids, as well as flavonoids, was recorded in n-butanol fraction (80.75 mg/g dw and 47.79 mg/g dw, respectively). This fraction was the most active in 2,2-diphenyl-1-picrylhydrazyl (DPPH), 2,2′-azino-bis (3-ethyl-benzothiazoline-6-sulfonic acid) (ABTS), and ferric reducing antioxidant power (FRAP) assays. Also, the n-butanol fraction was the most effective inhibitor of acetylcholinesterase (AChE) and tyrosinase (TYR) enzymes. All samples showed a better inhibitory effect on α-glucosidase enzyme with inhibition concentrations IC50 = 4.21 - 9.22 μg/mL, than α-amylase enzymes (IC50 = 14.36 - 88.61 μg/mL). Pearson’s correlation between the content of individual phenolics and the results of biological tests was performed. Thus, hyperoside and isoquercitrin showed a significant correlation with DPPH and ABTS tests, caffeoylquinic acids with FRAP test, quercetin 3-O-vicianoside with β-carotene assay, hyperoside and isoquercitrin with α-amylase inhibition activity, and isorhamnetin 3-O-rutinoside with α-glucosidase inhibition assay. Considering the obtained results, chokeberry leaves represent a valuable natural source of phenolic compounds with promising potential for the development of new products with beneficial effects on human health.",
publisher = "Elsevier",
journal = "Industrial Crops and Products",
title = "In vitro hypoglycemic, antioxidant and antineurodegenerative activity of chokeberry (Aronia melanocarpa) leaves",
volume = "148",
pages = "112328",
doi = "10.1016/j.indcrop.2020.112328"
}

Zdunić, G., Aradski, A. A., Gođevac, D., Živković, J. Č., Laušević, S. D., Milošević, D. K.,& Šavikin, K.. (2020). In vitro hypoglycemic, antioxidant and antineurodegenerative activity of chokeberry (Aronia melanocarpa) leaves. in Industrial Crops and Products
Elsevier., 148, 112328.
https://doi.org/10.1016/j.indcrop.2020.112328

Zdunić G, Aradski AA, Gođevac D, Živković JČ, Laušević SD, Milošević DK, Šavikin K. In vitro hypoglycemic, antioxidant and antineurodegenerative activity of chokeberry (Aronia melanocarpa) leaves. in Industrial Crops and Products. 2020;148:112328.
doi:10.1016/j.indcrop.2020.112328 .

Zdunić, Gordana, Aradski, Ana Alimpić, Gođevac, Dejan, Živković, Jelena Č., Laušević, Sonja Duletić, Milošević, Dijana Krstić, Šavikin, Katarina, "In vitro hypoglycemic, antioxidant and antineurodegenerative activity of chokeberry (Aronia melanocarpa) leaves" in Industrial Crops and Products, 148 (2020):112328,
https://doi.org/10.1016/j.indcrop.2020.112328 . .

TY  - JOUR
AU  - Živković, Jelena Č.
AU  - Savikin, Katarina
AU  - Zdunić, Gordana
AU  - Dojčinović, Biljana
AU  - Menković, Nebojša
PY  - 2016
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1873
AB  - The aim of this study was the determination of phenolic compounds, and mineral nutrients in the pulp and peel obtained from Balkan indigenous apple and pear cultivars. The phenolic composition, assessed by HPLC-DAD and spectrophotometric methods varied significantly between the cultivars for both peel and pulp. Among the apples, the Mekica cultivar had the highest total phenolic content while Secerlija and Zlatna Parmenka had the lowest. In the case of the pear samples, the maximum total phenolic content was found in Crna Takisa while the minimum content was recorded for Bela Arapka. In most of the investigated samples, chlorogenic acid in apples and arbutin in pears were the major detected polyphenolic compounds. With regard to the mineral analysis, K was the most abundant followed by P, Mg, Ca and S. Iron was the dominant microelement in apple peel and pulp samples, while in pear samples the principal microelement was B. The obtained results provide detailed information on the chemical composition of the tested apple and pear cultivars and thereby, could encourage their wider cultivation and consumption.
PB  - Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - Phenolic and mineral profile of Balkan indigenous apple and pear cultivars
VL  - 81
IS  - 6
SP  - 607
EP  - 621
DO  - 10.2298/JSC151026023Z
ER  - 

@article{
author = "Živković, Jelena Č. and Savikin, Katarina and Zdunić, Gordana and Dojčinović, Biljana and Menković, Nebojša",
year = "2016",
abstract = "The aim of this study was the determination of phenolic compounds, and mineral nutrients in the pulp and peel obtained from Balkan indigenous apple and pear cultivars. The phenolic composition, assessed by HPLC-DAD and spectrophotometric methods varied significantly between the cultivars for both peel and pulp. Among the apples, the Mekica cultivar had the highest total phenolic content while Secerlija and Zlatna Parmenka had the lowest. In the case of the pear samples, the maximum total phenolic content was found in Crna Takisa while the minimum content was recorded for Bela Arapka. In most of the investigated samples, chlorogenic acid in apples and arbutin in pears were the major detected polyphenolic compounds. With regard to the mineral analysis, K was the most abundant followed by P, Mg, Ca and S. Iron was the dominant microelement in apple peel and pulp samples, while in pear samples the principal microelement was B. The obtained results provide detailed information on the chemical composition of the tested apple and pear cultivars and thereby, could encourage their wider cultivation and consumption.",
publisher = "Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "Phenolic and mineral profile of Balkan indigenous apple and pear cultivars",
volume = "81",
number = "6",
pages = "607-621",
doi = "10.2298/JSC151026023Z"
}

Živković, J. Č., Savikin, K., Zdunić, G., Dojčinović, B.,& Menković, N.. (2016). Phenolic and mineral profile of Balkan indigenous apple and pear cultivars. in Journal of the Serbian Chemical Society
Serbian Chemical Society., 81(6), 607-621.
https://doi.org/10.2298/JSC151026023Z

Živković JČ, Savikin K, Zdunić G, Dojčinović B, Menković N. Phenolic and mineral profile of Balkan indigenous apple and pear cultivars. in Journal of the Serbian Chemical Society. 2016;81(6):607-621.
doi:10.2298/JSC151026023Z .

Živković, Jelena Č., Savikin, Katarina, Zdunić, Gordana, Dojčinović, Biljana, Menković, Nebojša, "Phenolic and mineral profile of Balkan indigenous apple and pear cultivars" in Journal of the Serbian Chemical Society, 81, no. 6 (2016):607-621,
https://doi.org/10.2298/JSC151026023Z . .

TY  - JOUR
AU  - Zdunić, Gordana
AU  - Menković, Nebojša
AU  - Jadranin, Milka
AU  - Novaković, Miroslav
AU  - Savikin, Katarina P.
AU  - Živković, Jelena Č.
PY  - 2016
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1894
AB  - Pumpkin fruit is used in a diet since ancient times especially in rural communities. The major contributory factors of nutritional and medicinal value of pumpkins are carotenoids, polysaccharides, vitamins, minerals, and phenolic compounds. Due to a very large fruit that it is not easy to consume a whole as well as short shelf-life of fresh-cut pumpkin, different ways of conserving and processing are performed. In our study, total carotenoids, total phenolics and individual phenolics in fresh pumpkin and pumpkin traditional products such as sweet in wine, jam and juice, which are typical for northern parts of Serbia, were studied. Total carotenoids ranged from 27.6 mu g/g of pumpkin sweet in wine to 86.3 mu g/g of fresh fruit, while the amount of total phenolics varied between 93.0 mu g GAE/g of pumpkin juice and 905.9 mu g GAE/g of fresh fruit. Eight phenolic compounds were identified in the investigated samples and among them phenolic acids dominated. Among flavonoids, flavanon glycoside hesperidin was detected.
PB  - Association of Chemical Engineers of Serbia
T2  - Hemijska industrija
T1  - Phenolic compounds and carotenoids in pumpkin fruit and related traditional products
VL  - 70
IS  - 4
SP  - 429
EP  - 433
DO  - 10.2298/HEMIND150219049Z
ER  - 

@article{
author = "Zdunić, Gordana and Menković, Nebojša and Jadranin, Milka and Novaković, Miroslav and Savikin, Katarina P. and Živković, Jelena Č.",
year = "2016",
abstract = "Pumpkin fruit is used in a diet since ancient times especially in rural communities. The major contributory factors of nutritional and medicinal value of pumpkins are carotenoids, polysaccharides, vitamins, minerals, and phenolic compounds. Due to a very large fruit that it is not easy to consume a whole as well as short shelf-life of fresh-cut pumpkin, different ways of conserving and processing are performed. In our study, total carotenoids, total phenolics and individual phenolics in fresh pumpkin and pumpkin traditional products such as sweet in wine, jam and juice, which are typical for northern parts of Serbia, were studied. Total carotenoids ranged from 27.6 mu g/g of pumpkin sweet in wine to 86.3 mu g/g of fresh fruit, while the amount of total phenolics varied between 93.0 mu g GAE/g of pumpkin juice and 905.9 mu g GAE/g of fresh fruit. Eight phenolic compounds were identified in the investigated samples and among them phenolic acids dominated. Among flavonoids, flavanon glycoside hesperidin was detected.",
publisher = "Association of Chemical Engineers of Serbia",
journal = "Hemijska industrija",
title = "Phenolic compounds and carotenoids in pumpkin fruit and related traditional products",
volume = "70",
number = "4",
pages = "429-433",
doi = "10.2298/HEMIND150219049Z"
}

Zdunić, G., Menković, N., Jadranin, M., Novaković, M., Savikin, K. P.,& Živković, J. Č.. (2016). Phenolic compounds and carotenoids in pumpkin fruit and related traditional products. in Hemijska industrija
Association of Chemical Engineers of Serbia., 70(4), 429-433.
https://doi.org/10.2298/HEMIND150219049Z

Zdunić G, Menković N, Jadranin M, Novaković M, Savikin KP, Živković JČ. Phenolic compounds and carotenoids in pumpkin fruit and related traditional products. in Hemijska industrija. 2016;70(4):429-433.
doi:10.2298/HEMIND150219049Z .

Zdunić, Gordana, Menković, Nebojša, Jadranin, Milka, Novaković, Miroslav, Savikin, Katarina P., Živković, Jelena Č., "Phenolic compounds and carotenoids in pumpkin fruit and related traditional products" in Hemijska industrija, 70, no. 4 (2016):429-433,
https://doi.org/10.2298/HEMIND150219049Z . .

TY  - JOUR
AU  - Živković, Jelena Č.
AU  - Savikin, Katarina
AU  - Zdunić, Gordana
AU  - Gođevac, Dejan
AU  - Marković, Nebojsa
AU  - Pržić, Zoran
AU  - Menković, Nebojša
PY  - 2016
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1940
AB  - Wine quality depends mainly on the characteristics of the grape it is made of, and one of the attributes affecting wine composition is cluster and berry morphology. The aim of this study was to represent variability of the morphological characteristics between different clones of the autochthonous grape variety Prokupac and to perform chemical evaluation of wines obtained from them. Total phenolic content was generally low and it ranged from 33.0 to 114.5 mg GAE/100 mL. Six main anthocyanin compounds including malvidin as the main anthocyanidin were detected. Malvidin 3-O-glucoside was the most abundant anthocyanin with concentration of 59.8 to 101.7 mu g/mL. Clones 43/5 and 43/4 yielded highest quality wines. According to the results, clonal selection makes a significant difference in Prokupac wine quality. On the other hand, there is a minor dependance of wine quality parameters to variation in morphological attributes of clusters and berries (bunch weight, proportion of stem, berry and seed weight, skin, pulp and seed weight per berry).
PB  - Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - Influence of bunch morphology on quality of wines produced from clones of grape variety Prokupac
VL  - 81
IS  - 8
SP  - 883
EP  - 896
DO  - 10.2298/JSC151114033Z
ER  - 

@article{
author = "Živković, Jelena Č. and Savikin, Katarina and Zdunić, Gordana and Gođevac, Dejan and Marković, Nebojsa and Pržić, Zoran and Menković, Nebojša",
year = "2016",
abstract = "Wine quality depends mainly on the characteristics of the grape it is made of, and one of the attributes affecting wine composition is cluster and berry morphology. The aim of this study was to represent variability of the morphological characteristics between different clones of the autochthonous grape variety Prokupac and to perform chemical evaluation of wines obtained from them. Total phenolic content was generally low and it ranged from 33.0 to 114.5 mg GAE/100 mL. Six main anthocyanin compounds including malvidin as the main anthocyanidin were detected. Malvidin 3-O-glucoside was the most abundant anthocyanin with concentration of 59.8 to 101.7 mu g/mL. Clones 43/5 and 43/4 yielded highest quality wines. According to the results, clonal selection makes a significant difference in Prokupac wine quality. On the other hand, there is a minor dependance of wine quality parameters to variation in morphological attributes of clusters and berries (bunch weight, proportion of stem, berry and seed weight, skin, pulp and seed weight per berry).",
publisher = "Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "Influence of bunch morphology on quality of wines produced from clones of grape variety Prokupac",
volume = "81",
number = "8",
pages = "883-896",
doi = "10.2298/JSC151114033Z"
}

Živković, J. Č., Savikin, K., Zdunić, G., Gođevac, D., Marković, N., Pržić, Z.,& Menković, N.. (2016). Influence of bunch morphology on quality of wines produced from clones of grape variety Prokupac. in Journal of the Serbian Chemical Society
Serbian Chemical Society., 81(8), 883-896.
https://doi.org/10.2298/JSC151114033Z

Živković JČ, Savikin K, Zdunić G, Gođevac D, Marković N, Pržić Z, Menković N. Influence of bunch morphology on quality of wines produced from clones of grape variety Prokupac. in Journal of the Serbian Chemical Society. 2016;81(8):883-896.
doi:10.2298/JSC151114033Z .

Živković, Jelena Č., Savikin, Katarina, Zdunić, Gordana, Gođevac, Dejan, Marković, Nebojsa, Pržić, Zoran, Menković, Nebojša, "Influence of bunch morphology on quality of wines produced from clones of grape variety Prokupac" in Journal of the Serbian Chemical Society, 81, no. 8 (2016):883-896,
https://doi.org/10.2298/JSC151114033Z . .

TY  - JOUR
AU  - Vajic, Una-Jovana
AU  - Grujic-Milanovic, Jelica
AU  - Živković, Jelena Č.
AU  - Savikin, Katarina
AU  - Gođevac, Dejan
AU  - Miloradović, Zoran
AU  - Bugarski, Branko
AU  - Mihailovic-Stanojevic, Nevena
PY  - 2015
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1717
AB  - A full three level factorial design was implemented for optimization of extraction parameters in order to maximize total phenolic (TP) yield from stinging nettle leaf. Factors considered were percentage of methanol in solvent (X-1 : 50-100% methanol) and extraction time (X-2: 30-90 min), and maceration was used as extraction method. A second-order polynomial model was applied for fitting experimental data and predicting the response, and this mathematical model produced a satisfactory fit (R-2 = 0.993,p LT 0.01). The optimal extraction conditions were 54% aqueous methanol and 38 min extraction time, while maximal theoretical TP yield was 8.9 mg GAE/g DW. Solvent composition significantly affected extraction efficiency causing decrease of TP yield with increase of methanol percentage. On the other hand, extraction time did not influence significantly efficiency of extraction. Using LC/MS and HPLC analysis we detected and quantified three most abundant phenolic compounds: 2-O-caffeoyl malic acid, chlorogenic acid, and rutin. Comparison between maceration and ultrasound-assisted extraction (UAE) obtained extracts based on TP content as well as antiradical activity and HPLC results, showed that UAE have a better extraction capability affecting yield and time of extraction. Of all tested extracts, 54% aqueous methanolic extracts obtained with UAE and 38 min extraction time had the highest TP content.
PB  - Elsevier
T2  - Industrial Crops and Products
T1  - Optimization of extraction of stinging nettle leaf phenolic compounds using response surface methodology
VL  - 74
SP  - 912
EP  - 917
DO  - 10.1016/j.indcrop.2015.06.032
ER  - 

@article{
author = "Vajic, Una-Jovana and Grujic-Milanovic, Jelica and Živković, Jelena Č. and Savikin, Katarina and Gođevac, Dejan and Miloradović, Zoran and Bugarski, Branko and Mihailovic-Stanojevic, Nevena",
year = "2015",
abstract = "A full three level factorial design was implemented for optimization of extraction parameters in order to maximize total phenolic (TP) yield from stinging nettle leaf. Factors considered were percentage of methanol in solvent (X-1 : 50-100% methanol) and extraction time (X-2: 30-90 min), and maceration was used as extraction method. A second-order polynomial model was applied for fitting experimental data and predicting the response, and this mathematical model produced a satisfactory fit (R-2 = 0.993,p LT 0.01). The optimal extraction conditions were 54% aqueous methanol and 38 min extraction time, while maximal theoretical TP yield was 8.9 mg GAE/g DW. Solvent composition significantly affected extraction efficiency causing decrease of TP yield with increase of methanol percentage. On the other hand, extraction time did not influence significantly efficiency of extraction. Using LC/MS and HPLC analysis we detected and quantified three most abundant phenolic compounds: 2-O-caffeoyl malic acid, chlorogenic acid, and rutin. Comparison between maceration and ultrasound-assisted extraction (UAE) obtained extracts based on TP content as well as antiradical activity and HPLC results, showed that UAE have a better extraction capability affecting yield and time of extraction. Of all tested extracts, 54% aqueous methanolic extracts obtained with UAE and 38 min extraction time had the highest TP content.",
publisher = "Elsevier",
journal = "Industrial Crops and Products",
title = "Optimization of extraction of stinging nettle leaf phenolic compounds using response surface methodology",
volume = "74",
pages = "912-917",
doi = "10.1016/j.indcrop.2015.06.032"
}

Vajic, U., Grujic-Milanovic, J., Živković, J. Č., Savikin, K., Gođevac, D., Miloradović, Z., Bugarski, B.,& Mihailovic-Stanojevic, N.. (2015). Optimization of extraction of stinging nettle leaf phenolic compounds using response surface methodology. in Industrial Crops and Products
Elsevier., 74, 912-917.
https://doi.org/10.1016/j.indcrop.2015.06.032

Vajic U, Grujic-Milanovic J, Živković JČ, Savikin K, Gođevac D, Miloradović Z, Bugarski B, Mihailovic-Stanojevic N. Optimization of extraction of stinging nettle leaf phenolic compounds using response surface methodology. in Industrial Crops and Products. 2015;74:912-917.
doi:10.1016/j.indcrop.2015.06.032 .

Vajic, Una-Jovana, Grujic-Milanovic, Jelica, Živković, Jelena Č., Savikin, Katarina, Gođevac, Dejan, Miloradović, Zoran, Bugarski, Branko, Mihailovic-Stanojevic, Nevena, "Optimization of extraction of stinging nettle leaf phenolic compounds using response surface methodology" in Industrial Crops and Products, 74 (2015):912-917,
https://doi.org/10.1016/j.indcrop.2015.06.032 . .

TY  - JOUR
AU  - Savikin, Katarina
AU  - Živković, Jelena Č.
AU  - Zdunić, Gordana
AU  - Gođevac, Dejan
AU  - Dordevic, Boban
AU  - Dojčinović, Biljana
AU  - Đorđević, Neda O.
PY  - 2014
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1396
AB  - Some primary and secondary metabolites, as well as mineral nutrients in pulp, peel and juice obtained from four Serbian indigenous apple cultivars (Kozara, Kolacara, Budimka and.Sumatovka) collected at two different developmental stages were studied. With advanced maturation soluble solids content, total and reducing sugars increased, while L-ascorbic acid content and titratable acidity decreased. Thirteen phenolic compounds were quantified using LC-MS/MS. The total phenolic content (TPC) ranged from 9.37 to 1440 mg/100 g fw, and 0.83 to 7.84 mg/100 g fw in peel and pulp samples, respectively. Quercetin derivatives were the major detected polyphenolic group. Majority of determined phenolic compounds were influenced by cultivar and the best sources were cultivars Kolgara and Budimka. The content of flavonols (with the exception of quercitrin) varied significantly depending on maturity at harvest. With regard to mineral analysis, K was the most abundant ranging from 104 to 158 mg/100 g fw in peel, 74.4 to 93.3 mg/100 g fw in pulp, and 77.1 to 91.5 mg/100 g fw in juice samples. Obtained results provide detailed information on nutritional potential and chemical composition of tested apple cultivars and thereby could encourage their wider cultivation and consumption
PB  - Academic Press Inc.
T2  - Journal of Food Composition and Analysis
T1  - Phenolic and mineral profiles of four Balkan indigenous apple cultivars monitored at two different maturity stages
VL  - 35
IS  - 2
SP  - 101
EP  - 111
DO  - 10.1016/j.jfca.2014.05.004
ER  - 

@article{
author = "Savikin, Katarina and Živković, Jelena Č. and Zdunić, Gordana and Gođevac, Dejan and Dordevic, Boban and Dojčinović, Biljana and Đorđević, Neda O.",
year = "2014",
abstract = "Some primary and secondary metabolites, as well as mineral nutrients in pulp, peel and juice obtained from four Serbian indigenous apple cultivars (Kozara, Kolacara, Budimka and.Sumatovka) collected at two different developmental stages were studied. With advanced maturation soluble solids content, total and reducing sugars increased, while L-ascorbic acid content and titratable acidity decreased. Thirteen phenolic compounds were quantified using LC-MS/MS. The total phenolic content (TPC) ranged from 9.37 to 1440 mg/100 g fw, and 0.83 to 7.84 mg/100 g fw in peel and pulp samples, respectively. Quercetin derivatives were the major detected polyphenolic group. Majority of determined phenolic compounds were influenced by cultivar and the best sources were cultivars Kolgara and Budimka. The content of flavonols (with the exception of quercitrin) varied significantly depending on maturity at harvest. With regard to mineral analysis, K was the most abundant ranging from 104 to 158 mg/100 g fw in peel, 74.4 to 93.3 mg/100 g fw in pulp, and 77.1 to 91.5 mg/100 g fw in juice samples. Obtained results provide detailed information on nutritional potential and chemical composition of tested apple cultivars and thereby could encourage their wider cultivation and consumption",
publisher = "Academic Press Inc.",
journal = "Journal of Food Composition and Analysis",
title = "Phenolic and mineral profiles of four Balkan indigenous apple cultivars monitored at two different maturity stages",
volume = "35",
number = "2",
pages = "101-111",
doi = "10.1016/j.jfca.2014.05.004"
}

Savikin, K., Živković, J. Č., Zdunić, G., Gođevac, D., Dordevic, B., Dojčinović, B.,& Đorđević, N. O.. (2014). Phenolic and mineral profiles of four Balkan indigenous apple cultivars monitored at two different maturity stages. in Journal of Food Composition and Analysis
Academic Press Inc.., 35(2), 101-111.
https://doi.org/10.1016/j.jfca.2014.05.004

Savikin K, Živković JČ, Zdunić G, Gođevac D, Dordevic B, Dojčinović B, Đorđević NO. Phenolic and mineral profiles of four Balkan indigenous apple cultivars monitored at two different maturity stages. in Journal of Food Composition and Analysis. 2014;35(2):101-111.
doi:10.1016/j.jfca.2014.05.004 .

Savikin, Katarina, Živković, Jelena Č., Zdunić, Gordana, Gođevac, Dejan, Dordevic, Boban, Dojčinović, Biljana, Đorđević, Neda O., "Phenolic and mineral profiles of four Balkan indigenous apple cultivars monitored at two different maturity stages" in Journal of Food Composition and Analysis, 35, no. 2 (2014):101-111,
https://doi.org/10.1016/j.jfca.2014.05.004 . .

TY  - JOUR
AU  - Menković, Nebojša
AU  - Živković, Jelena Č.
AU  - Savikin, Katarina
AU  - Gođevac, Dejan
AU  - Zdunić, Gordana
PY  - 2014
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1546
AB  - Phenolic compounds are very important quality parameters of wine because of their impact on colour, taste and health properties. The present study was aimed at evaluating the general phenolic composition and free radical scavenging activity of aqueous and organic fractions obtained using liquid liquid extraction of red wine produced from the Serbian autochthonous grape variety Prokupac. The total phenolic contents in the different fractions ranged from 48.22 to 289.12 mg GAE per g dry fraction. Phenolic acids (mainly hydroxycinnamic acids) and quercetin 3-O-glucuronide were the main components in the EtOAc fraction at pH 2.0; catechins, phenolic acids (mainly hydroxybenzoic acids) and quercetin were found in the EtOAc fraction at pH 7.0, while anthocyanins were identified in the aqueous residue after EtOAc extraction. The major anthocyanin extracted into the aqueous fraction was malvidin-3-glucoside, while the most abundant non-anthocyanin phenolic compounds in the organic fractions were ethyl gallate and trans-caftaric acid. The radical scavenging activities of the fraction differed significantly and the IC50 values were 138.58 mu g mL(-1) for the aqueous fraction, 17.83 and 3.47 ng mL(-1) for the EtOAc fractions at pH 2.0 and 7.0, respectively. As the EtOAc fractions were found to be more potent radical scavengers, it could be assumed that non-anthocyanin phenolic compounds were responsible for such activity in Prokupac wine.
PB  - Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - Phenolic composition and free radical scavenging activity of wine produced from the Serbian autochthonous grape variety Prokupac - A model approach
VL  - 79
IS  - 1
SP  - 11
EP  - 24
DO  - 10.2298/JSC130511089M
ER  - 

@article{
author = "Menković, Nebojša and Živković, Jelena Č. and Savikin, Katarina and Gođevac, Dejan and Zdunić, Gordana",
year = "2014",
abstract = "Phenolic compounds are very important quality parameters of wine because of their impact on colour, taste and health properties. The present study was aimed at evaluating the general phenolic composition and free radical scavenging activity of aqueous and organic fractions obtained using liquid liquid extraction of red wine produced from the Serbian autochthonous grape variety Prokupac. The total phenolic contents in the different fractions ranged from 48.22 to 289.12 mg GAE per g dry fraction. Phenolic acids (mainly hydroxycinnamic acids) and quercetin 3-O-glucuronide were the main components in the EtOAc fraction at pH 2.0; catechins, phenolic acids (mainly hydroxybenzoic acids) and quercetin were found in the EtOAc fraction at pH 7.0, while anthocyanins were identified in the aqueous residue after EtOAc extraction. The major anthocyanin extracted into the aqueous fraction was malvidin-3-glucoside, while the most abundant non-anthocyanin phenolic compounds in the organic fractions were ethyl gallate and trans-caftaric acid. The radical scavenging activities of the fraction differed significantly and the IC50 values were 138.58 mu g mL(-1) for the aqueous fraction, 17.83 and 3.47 ng mL(-1) for the EtOAc fractions at pH 2.0 and 7.0, respectively. As the EtOAc fractions were found to be more potent radical scavengers, it could be assumed that non-anthocyanin phenolic compounds were responsible for such activity in Prokupac wine.",
publisher = "Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "Phenolic composition and free radical scavenging activity of wine produced from the Serbian autochthonous grape variety Prokupac - A model approach",
volume = "79",
number = "1",
pages = "11-24",
doi = "10.2298/JSC130511089M"
}

Menković, N., Živković, J. Č., Savikin, K., Gođevac, D.,& Zdunić, G.. (2014). Phenolic composition and free radical scavenging activity of wine produced from the Serbian autochthonous grape variety Prokupac - A model approach. in Journal of the Serbian Chemical Society
Serbian Chemical Society., 79(1), 11-24.
https://doi.org/10.2298/JSC130511089M

Menković N, Živković JČ, Savikin K, Gođevac D, Zdunić G. Phenolic composition and free radical scavenging activity of wine produced from the Serbian autochthonous grape variety Prokupac - A model approach. in Journal of the Serbian Chemical Society. 2014;79(1):11-24.
doi:10.2298/JSC130511089M .

Menković, Nebojša, Živković, Jelena Č., Savikin, Katarina, Gođevac, Dejan, Zdunić, Gordana, "Phenolic composition and free radical scavenging activity of wine produced from the Serbian autochthonous grape variety Prokupac - A model approach" in Journal of the Serbian Chemical Society, 79, no. 1 (2014):11-24,
https://doi.org/10.2298/JSC130511089M . .