Mato Drenjancevic - Academia.edu (original) (raw)
Uploads
Papers by Mato Drenjancevic
Poljoprivreda (Osijek), Dec 20, 2013
Antioxidants, May 11, 2022
One of the main abiotic stresses is the lack of microelements which influences the growth and dev... more One of the main abiotic stresses is the lack of microelements which influences the growth and development of grapevine cultivated on high pH value carbonated soil. Chlorosis phenomenon often appears in the vine-growing Podunavlje sub-region on carbonated soil with loess being the main substrate. It often appears due to a lack of plant nourishing elements in the soil, or because of their inactivation. The aim of this research was to determine the intensity and the space distribution of different chlorosis types on the grapevine by mapping using chlorophyll meter and GPS as well as chlorosis degree (where the estimating scale of chlorosis ranged 0-5), and to visualise the data by GIS technology. High ratio of relative chlorosis was determined on the researched area. It was found out by the microelements deficit, mostly iron.
![Research paper thumbnail of Effect of plant spacing and nitorgen fertilization on the yield of some chokeberry cultivars (Aronia melanocarpa [Michx] Elliot)](https://attachments.academia-assets.com/120416209/thumbnails/1.jpg)
](
The anthocyanin and total phenols concentrations of Vitis vinifera cv Probus (Serbian wine grape ... more The anthocyanin and total phenols concentrations of Vitis vinifera cv Probus (Serbian wine grape variety) and Cabernet Sauvignon, during ripening in Fruska Gora region, were investigated. Phenolic concentration was evaluated by spectrophotometric analysis. Probus had higher anthocyanins concentration in the skin and total phenols per berry. Cabernet Sauvignon did not show big enlargement in anthocyanins content during this period. Contrastingly, anthocyanins content in Probus berry skin was increasing until harvest. Small berries of cv. Probus had colored pulp. There was a decrease in the Cabernet Sauvignon berry weight near the harvest. Optimum moment to harvest Probus was 50 days after veraison. Overall, these two varieties showed differences in anthocyanins accumulation during ripening.Cilj rada bio je da se ispita dinamika nakupljanja antocijana i ukupnih fenola u bobicama sorti probus i kaberne sovinjon tokom sazrevanja. Praćen je sadržaj ovih jedinjenja od šarka do berbe, u vr...
Antioxidants
The vasodilatory activity and polyphenolic content of commercially available white wine is low co... more The vasodilatory activity and polyphenolic content of commercially available white wine is low compared to red wines. This study assessed the vasodilator potential of white wines produced by four different fermentation processes: (1) white wine produced by the standard procedure; (2) grapes left to macerate completely for 30 days; (3) grapes left to macerate up to half of unfermented sugar; and (4) wine produced by cooling the must. All tested wine samples were analyzed for their phenolic content, antioxidant capacity, and ethanol content. Vasodilation was examined in the norepinephrine pre-contracted isolated rat aortas of male Sprague-Dawley rats randomly exposed to cumulative concentrations (0.1‰ to 8‰ final dilutions in organ baths) of each of the tested wine samples with or without quercetin and/or gallic acid supplementation, in the absence/presence of NOS inhibitor L-NAME. Standard procedure and the procedure involving must cooling gives wine with lower phenolic content, anti...
The anthocyaninand total phenols concentrations of Vitis vinifera cv Probus (Serbian wine grape v... more The anthocyaninand total phenols concentrations of Vitis vinifera cv Probus (Serbian wine grape variety) and Cabernet Sauvignon, during ripening in Fruska Gora region, were investigated. Phenolic concentration was evaluated by spectrophotometric analysis. Probus had higher anthocyanins concentration in the skin and total phenols per berry. Cabernet Sauvignon did not show big enlargement in anthocyanins content during this period. Contrastingly, anthocyanins content in Probus berry skin was increasing until harvest. Small berries of cv. Probus had colored pulp. There was a decrease in the Cabernet Sauvignon berry weight near the harvest. Optimum moment to harvest Probus was 50 days after veraison. Overall, these two varieties showed differences in anthocyanins accumulation during ripening.
![Research paper thumbnail of Effect of plant spacing and nitorgen fertilization on the yield of some chokeberry cultivars (Aronia melanocarpa [Michx] Elliot)](https://attachments.academia-assets.com/120416167/thumbnails/1.jpg)
](Aronija (Aronia melanocarpa [Michx]Elliot) je vocna vrsta koja nema dugu tradiciju uzgoja u Repub... more Aronija (Aronia melanocarpa [Michx]Elliot) je vocna vrsta koja nema dugu tradiciju uzgoja u Republici Hrvatskoj. Do sada se uzgajala gotovo iskljucivo na okucnicama, a tek u posljednje vrijeme podignuti su veci suvremeni nasadi ali na temelju iskustava proizvođaca iz drugih zemalja, razlicitih agroekoloskih uvjeta. Cilj istraživanja je bio ustanoviti razlike u prinosu između pojedinih sorata aronije (Viking, Nero i Galicijanka) te divljoj aroniji s obzirom na primjenu razlicitih razmaka sadnje (1 i 1, 5 m) i gnojidbu dusikom (0, 45 i 70 kg/ha) u proizvodnim uvjetima istocne Hrvatske u 2013. godini. Pokus je postavljen u proljece 2011. godine. Sve tri sorte aronije signifikantno su se razlikovale u prosjecnom prinosu po biljci u odnosu na divlju aroniju (0, 43 kg/biljci). Najvisi prosjecni prinos po biljci ostvaren je kod sorte Nero (1, 72 kg/biljci). Kod oba razmaka sadnje divlja aronija statisticki se znacajno razlikovala od ostalih sorata. Kod svih sorata postignut je znacajno vis...
OENO One, 2020
Aim: Leaf removal around clusters and cluster thinning are techniques usually applied in cool-cli... more Aim: Leaf removal around clusters and cluster thinning are techniques usually applied in cool-climate vineyards in order to achieve optimal grape maturity. However, the impact of the timing of these two operations differs across varieties. Thus, the aim of the present work was to investigate the effects of cluster thinning and leaf removal timing (performed at three specific time points) on grape quality and monomeric anthocyanins in the wines of Cabernet-Sauvignon and Probus (Kadarka × Cabernet-Sauvignon, Vitis vinifera L.)Methods and results: The experiment was conducted in Sremski Karlovci (Northern Serbia) in 2014, 2015, and 2016. Leaf removal was applied on six basal nodes of each shoot at three time points, 7 days after flowering, 30 days after flowering, and at veraison, i.e., at the onset of berry ripening. After cluster thinning, which was performed 7 days after flowering, one cluster per shoot was retained. On the treated vines, leaf removal treatment and cluster thinning ...
Acta Agriculturae Scandinavica, Section B — Soil & Plant Science, 2017
Electronic Journal of Environmental, Agricultural and Food Chemistry
In this study, differences in the bioactive polyphenolic substances between chokeberries (cultiva... more In this study, differences in the bioactive polyphenolic substances between chokeberries (cultivars “Nero”, “Viking”, “Galicianka” ; wild chokeberry) (Aronia melanocarpa) were examined. The results showed that there were some differences between investigated fruits according to the amount of polyphenols, anthocyanins, and the antiradical activity. Somewhat higher total polyphenol and total anthocyanin content were found in wild chokeberries and in cultivar “Nero”. Wild chokeberries and cultivar “Nero” showed stronger antiradical activity determined by the DPPH method. The phenolic compound distribution was similar in all chokeberries as well as their kinetic behavior in the free radical capturing.
Scientia Horticulturae, 2012
ABSTRACT Chokeberries are a subject of numerous studies due to a high phenolic compound content, ... more ABSTRACT Chokeberries are a subject of numerous studies due to a high phenolic compound content, antioxidant properties and potential positive influence on the health. In this work, phenolic compounds and the antiradical activity of three chokeberry cultivars (“Nero”, “Viking”, “Galicianka”) and wild chokeberries were compared during two consecutive year. The phenolic compound profile determined by high performance liquid chromatography (HPLC) was the same in all chokeberries. But some differences were found in the content of phenolic compounds. The total phenol and total anthocyanin content was higher in cultivars “Viking” and “Nero”. Cultivar “Galicianka” had the lowest phenolic compound content. The flavonol content was similar in all chokeberries. Phenolic acid content was high in wild chokeberries and in cultivar “Viking”. The antiradical activity was the strongest in wild chokeberries and in cultivar “Viking”. Wild chokeberries differed from other investigated chokeberries by somewhat higher amount of phenolic acids which might affect their antiradical activity.
Poljoprivreda (Osijek), Dec 20, 2013
Antioxidants, May 11, 2022
One of the main abiotic stresses is the lack of microelements which influences the growth and dev... more One of the main abiotic stresses is the lack of microelements which influences the growth and development of grapevine cultivated on high pH value carbonated soil. Chlorosis phenomenon often appears in the vine-growing Podunavlje sub-region on carbonated soil with loess being the main substrate. It often appears due to a lack of plant nourishing elements in the soil, or because of their inactivation. The aim of this research was to determine the intensity and the space distribution of different chlorosis types on the grapevine by mapping using chlorophyll meter and GPS as well as chlorosis degree (where the estimating scale of chlorosis ranged 0-5), and to visualise the data by GIS technology. High ratio of relative chlorosis was determined on the researched area. It was found out by the microelements deficit, mostly iron.
The anthocyanin and total phenols concentrations of Vitis vinifera cv Probus (Serbian wine grape ... more The anthocyanin and total phenols concentrations of Vitis vinifera cv Probus (Serbian wine grape variety) and Cabernet Sauvignon, during ripening in Fruska Gora region, were investigated. Phenolic concentration was evaluated by spectrophotometric analysis. Probus had higher anthocyanins concentration in the skin and total phenols per berry. Cabernet Sauvignon did not show big enlargement in anthocyanins content during this period. Contrastingly, anthocyanins content in Probus berry skin was increasing until harvest. Small berries of cv. Probus had colored pulp. There was a decrease in the Cabernet Sauvignon berry weight near the harvest. Optimum moment to harvest Probus was 50 days after veraison. Overall, these two varieties showed differences in anthocyanins accumulation during ripening.Cilj rada bio je da se ispita dinamika nakupljanja antocijana i ukupnih fenola u bobicama sorti probus i kaberne sovinjon tokom sazrevanja. Praćen je sadržaj ovih jedinjenja od šarka do berbe, u vr...
Antioxidants
The vasodilatory activity and polyphenolic content of commercially available white wine is low co... more The vasodilatory activity and polyphenolic content of commercially available white wine is low compared to red wines. This study assessed the vasodilator potential of white wines produced by four different fermentation processes: (1) white wine produced by the standard procedure; (2) grapes left to macerate completely for 30 days; (3) grapes left to macerate up to half of unfermented sugar; and (4) wine produced by cooling the must. All tested wine samples were analyzed for their phenolic content, antioxidant capacity, and ethanol content. Vasodilation was examined in the norepinephrine pre-contracted isolated rat aortas of male Sprague-Dawley rats randomly exposed to cumulative concentrations (0.1‰ to 8‰ final dilutions in organ baths) of each of the tested wine samples with or without quercetin and/or gallic acid supplementation, in the absence/presence of NOS inhibitor L-NAME. Standard procedure and the procedure involving must cooling gives wine with lower phenolic content, anti...
The anthocyaninand total phenols concentrations of Vitis vinifera cv Probus (Serbian wine grape v... more The anthocyaninand total phenols concentrations of Vitis vinifera cv Probus (Serbian wine grape variety) and Cabernet Sauvignon, during ripening in Fruska Gora region, were investigated. Phenolic concentration was evaluated by spectrophotometric analysis. Probus had higher anthocyanins concentration in the skin and total phenols per berry. Cabernet Sauvignon did not show big enlargement in anthocyanins content during this period. Contrastingly, anthocyanins content in Probus berry skin was increasing until harvest. Small berries of cv. Probus had colored pulp. There was a decrease in the Cabernet Sauvignon berry weight near the harvest. Optimum moment to harvest Probus was 50 days after veraison. Overall, these two varieties showed differences in anthocyanins accumulation during ripening.
Aronija (Aronia melanocarpa [Michx]Elliot) je vocna vrsta koja nema dugu tradiciju uzgoja u Repub... more Aronija (Aronia melanocarpa [Michx]Elliot) je vocna vrsta koja nema dugu tradiciju uzgoja u Republici Hrvatskoj. Do sada se uzgajala gotovo iskljucivo na okucnicama, a tek u posljednje vrijeme podignuti su veci suvremeni nasadi ali na temelju iskustava proizvođaca iz drugih zemalja, razlicitih agroekoloskih uvjeta. Cilj istraživanja je bio ustanoviti razlike u prinosu između pojedinih sorata aronije (Viking, Nero i Galicijanka) te divljoj aroniji s obzirom na primjenu razlicitih razmaka sadnje (1 i 1, 5 m) i gnojidbu dusikom (0, 45 i 70 kg/ha) u proizvodnim uvjetima istocne Hrvatske u 2013. godini. Pokus je postavljen u proljece 2011. godine. Sve tri sorte aronije signifikantno su se razlikovale u prosjecnom prinosu po biljci u odnosu na divlju aroniju (0, 43 kg/biljci). Najvisi prosjecni prinos po biljci ostvaren je kod sorte Nero (1, 72 kg/biljci). Kod oba razmaka sadnje divlja aronija statisticki se znacajno razlikovala od ostalih sorata. Kod svih sorata postignut je znacajno vis...
OENO One, 2020
Aim: Leaf removal around clusters and cluster thinning are techniques usually applied in cool-cli... more Aim: Leaf removal around clusters and cluster thinning are techniques usually applied in cool-climate vineyards in order to achieve optimal grape maturity. However, the impact of the timing of these two operations differs across varieties. Thus, the aim of the present work was to investigate the effects of cluster thinning and leaf removal timing (performed at three specific time points) on grape quality and monomeric anthocyanins in the wines of Cabernet-Sauvignon and Probus (Kadarka × Cabernet-Sauvignon, Vitis vinifera L.)Methods and results: The experiment was conducted in Sremski Karlovci (Northern Serbia) in 2014, 2015, and 2016. Leaf removal was applied on six basal nodes of each shoot at three time points, 7 days after flowering, 30 days after flowering, and at veraison, i.e., at the onset of berry ripening. After cluster thinning, which was performed 7 days after flowering, one cluster per shoot was retained. On the treated vines, leaf removal treatment and cluster thinning ...
Acta Agriculturae Scandinavica, Section B — Soil & Plant Science, 2017
Electronic Journal of Environmental, Agricultural and Food Chemistry
In this study, differences in the bioactive polyphenolic substances between chokeberries (cultiva... more In this study, differences in the bioactive polyphenolic substances between chokeberries (cultivars “Nero”, “Viking”, “Galicianka” ; wild chokeberry) (Aronia melanocarpa) were examined. The results showed that there were some differences between investigated fruits according to the amount of polyphenols, anthocyanins, and the antiradical activity. Somewhat higher total polyphenol and total anthocyanin content were found in wild chokeberries and in cultivar “Nero”. Wild chokeberries and cultivar “Nero” showed stronger antiradical activity determined by the DPPH method. The phenolic compound distribution was similar in all chokeberries as well as their kinetic behavior in the free radical capturing.
Scientia Horticulturae, 2012
ABSTRACT Chokeberries are a subject of numerous studies due to a high phenolic compound content, ... more ABSTRACT Chokeberries are a subject of numerous studies due to a high phenolic compound content, antioxidant properties and potential positive influence on the health. In this work, phenolic compounds and the antiradical activity of three chokeberry cultivars (“Nero”, “Viking”, “Galicianka”) and wild chokeberries were compared during two consecutive year. The phenolic compound profile determined by high performance liquid chromatography (HPLC) was the same in all chokeberries. But some differences were found in the content of phenolic compounds. The total phenol and total anthocyanin content was higher in cultivars “Viking” and “Nero”. Cultivar “Galicianka” had the lowest phenolic compound content. The flavonol content was similar in all chokeberries. Phenolic acid content was high in wild chokeberries and in cultivar “Viking”. The antiradical activity was the strongest in wild chokeberries and in cultivar “Viking”. Wild chokeberries differed from other investigated chokeberries by somewhat higher amount of phenolic acids which might affect their antiradical activity.