Florin-Dumitru Bora | USAMV Cluj Napoca (original) (raw)

Papers by Florin-Dumitru Bora

Food and Environment Safety Journal, Feb 1, 2017

Wine is a food product produced exclusively by partial/total alcoholic fermentation of fresh grap... more Wine is a food product produced exclusively by partial/total alcoholic fermentation of fresh grapes. From a chemical point of view, wine is a complex mixture consisting of water, sugar, ethanol, amino acids, polyphenolic compounds, anthocyanins, organic/inorganic materials. Viticulture depends on meterorological conditions. The wine industry from Romania is particularly involved in the controversial effects generated by climate change. Although the overall effects of climate change on Romanian viticulture are uncertain, it is known that grapevine yields diminish with the occurrence of abiotic stress, such as freezing temperatures, increasing soil salinity and drought because of the varying effects on grape quality. The purpose of this work is to present data relating to the composition characteristics of some quality wines from the Șimleul Silvaniei in the new climate conditions over the last few years. The biological material consisted of the varieties: Fetească regală (F.r.), Fetească albă (F.r.), Italian Riesling (R.i.) and Furmint (F.m.). The weight values obtained for 100 grains (182.06±5.98 g F.a. 2014), sugar (202.28±2.98 g/L F.a 2013), titratable acidity (9.39±0.03 g/L C 4 H 4 O 6 F.m 2014), acidity (4.70±0.09 g/L H 2 SO 4 F.m. 2014), pH (3.92±0.24 R.i. 2014) in grapes and reducing sugars (2.63±0.17 g/L F.a. 2015), total dry extract (27.73±1.29 g/L R.i. 2013), non-reducing extract (26.62±0.46 g/L R.i. 2013), total acidity (7.65±0.11 g/L C 4 H 4 O 6 F.r. 2013), volatile acidity (0.57±0.04 g/L CH 3 COOH) of wine, are specific to the four varieties analyzed. The correlation analysis revealed a number of strong correlations between the qualitative characteristics of wine and composition of grapes.

Fermentation, 2022

Malolactic fermentation (MLF) or biological decrease of wine acidity is defined as the enzymatic ... more Malolactic fermentation (MLF) or biological decrease of wine acidity is defined as the enzymatic bioconversion of malic acid in lactic acid, a process performed by lactic acid bacteria (LAB). The procedures for the isolation of new indigenous LAB strains from the red wines produced in Copou Iasi wine center (NE of Romania) undergoing spontaneous malolactic fermentation, resulted in the obtaining of 67 catalase-negative and Gram-positive LAB strains. After testing in the malolactic fermentative process, application of specific screening procedures and identification (API 50 CH), two bacterial strains belonging to the species Oenococcus oeni (strain 13-7) and Lactobacillus plantarum (strain R1-1) with high yield of malolactic bioconversion, non-producing biogenic amines, and with active extracellular enzymes related to wine aroma, were retained and characterized. Tested in synthetic medium (MRS-TJ) for 10 days, the new isolated LAB strains metabolized over 98% of the malic acid at eth...

Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca. Agriculture, May 18, 2018

Leaf photosynthetic capacity is a key parameter determining crop yield; it is enhanced by moderat... more Leaf photosynthetic capacity is a key parameter determining crop yield; it is enhanced by moderate soil moisture and reduced in both severe water deficit and excessive water conditions. The aim of this work was to evaluate the wheat variety photosynthetic capacity in two main phenological stages. The evaluation of photosynthesis capacity of studied winter wheat varieties in Transylvanian Plain conditions offer relevant information on Romanian genetic material type and paving the way of new research directed to a new wheat breeding program criteria and for improvement of those.

Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca. Horticulture, 2016

The degree of fertility coefficient absoltul (CFA) and coefficient ratio (CFR) we can see that t... more The degree of fertility coefficient absoltul (CFA) and coefficient ratio (CFR) we can see that the highest values were obtained from the variety 'Fetească regală' (54.5 ± 1.00% fertility; 1.60 ± 1.00 coefficient absolute (CFA ) and 0.86 ± 1.00 coefficinet relative (CFR). The analysis of physical-mechanical based on the results it can be seen that the variety 'Bujoru' showed the best values for all parameters analyzed (303.5 ± 1.0 (g) the average weight of the grape bunch, 278.07 ± 1.0 (g) weight of 100 berries; 213.66 ± 0.67 (g / L) sucrose sugar concent and 4.331 ± 1.0 (kg / comes) average coming production).

Horticulturae

Annual grapevine pruning produces large amounts of unused waste as woody canes. The current study... more Annual grapevine pruning produces large amounts of unused waste as woody canes. The current study is aimed at the sustainable valorization of viticultural waste by establishing phenolic compound extraction conditions, composition, and biological potential of crude and purified cane extracts of three Vitis vinifera L. cultivars growing in temperate climate conditions. Grapevine canes proved to be rich in carbohydrates and minerals; chlorophyll and carotenoids were also quantified. The highest yield of phenolic compounds was obtained when dry canes (<0.5 mm) were subjected to liquid–solid extraction (1:20 w/v) with 70% (v/v) ethanol, for 4 h at 35 °C, after a preliminary ultrasound treatment (6 min., 42 KHz); Pinot Gris canes showing the highest concentration of flavonoids and non-flavonoids. Stilbenes (resveratrol) and flavan-3-ols (catechin and epicatechin) were the main phenolic representative, resveratrol concentrations varying significantly between red-black (419.01–425.60 μg/...

Horticulturae

One of the main issues for sustainable global development with high priority is food security. Th... more One of the main issues for sustainable global development with high priority is food security. The negative effects of contaminants on crop quality have threatened both food security and human health. Long-term heavy metal exposure from food, drinking water, or other occupational sources causes serious problems, such as kidney failure, hepatotoxicity, and neurotoxicity. This study was conducted to determine the concentrations of three toxic trace elements (As, Cd, Pb) and one microelement (Zn) in fruits and vegetables using ICP-MS, and it also sought to reduce the concentrations of metals by washing with vinegar (5% and 10% acetic acid). The potential of vinegar to influence heavy metal contents may be due to its effect on pH values that influence the solution chemistry of the heavy metals, such as hydrolysis, redox reactions, precipitation, and availability of heavy metals. Sample origin has a significant influence in terms of metal accumulation; values up to 35%, 68%, 67%, and 3% ...

DOAJ (DOAJ: Directory of Open Access Journals), Dec 1, 2021

Annals of the University Dunarea de Jos of Galati. Fascicle VI: Food Technology, 2018

The quality of any wine is intrinsically dependent on the quality and composition of the grapes u... more The quality of any wine is intrinsically dependent on the quality and composition of the grapes used to produce it. In traditional winemaking countries such as Germany and France, wine quality is determined by geographic origin or the terroir of the wine. The aim of the present research is to determine the quality of wines from the main vineyards of Romania. In terms of quality rating, they display particular characters of the varieties, as well as the ecoclimatic conditions and ecopedological influence on the quality of wine. The work offers new information on the quality of the white wines obtained in main vineyards of Romania, useful for their promotion and marketing. The variation of the physico-chemical characteristics and elemental concentration represents a strong geological marker for wines geographical traceability.

Agricultura, 2018

The complex composition of a red wine is due mainly to the presence of phenolic substances and an... more The complex composition of a red wine is due mainly to the presence of phenolic substances and anthocyanins with a major role to form the quality characteristics: color, aroma and flavour. The aim of this paper is to analyse the physicochemical composition of the five young wines from the Dealu Bujorului Vineyard (Merlot, Feteasca Neagra, Burgund Mare, Babeasca Neagra and Cabernet Sauvignon), obtained under the climatic conditions of the year of 2017. The main oenological parameters, color intensity, total polyphenol content and anthocyanins were determined according O.I.V. methods. Results show that wines recorded the highest values for alcohol content 14.18±0.09 (% vol.) for Merlot, 14.17±0.21 (% vol.) for Feteasca Neagra and the lowest values of alcoholic strength were recorded by Cabernet Sauvignon 13.77±0.25 (% vol.). A variation in total phenolic contents of tested wine samples was observed, the highest values of the total polyphenols being recorded by Babeasca Neagra wine (2....

From the chemical point of view wine is a complex mixture of water, sugar, inorganic and organic ... more From the chemical point of view wine is a complex mixture of water, sugar, inorganic and organic materials. There are some factor which influence wine composition: grape varieties, soil type, the climate, type of culture, agrochemical product (fertilizers and pesticides) and the practices used for wine making. These factors are directly involved in wine and wine characterization. Besides the quality issues that these heavy metals create in the wine, they also affect the health of wine consumers. The aim of this paper is to determine the qualitative charateristics of wine, but also to determine the quantitative of five elements: Na, Mg, Cu, Pb, and Cd from wine, using FAAS. The bilogical material used was compoused by the varieties: Fetească albă, Fetească regală, Riesling Italian and Pinot gris grown in Silvania vineyard. The values obtained for alcoholic strength, total acidity, residual sugar and dry extract is specific for the four analysed varieties. The average concentration of...

Wine is a food product produced exclusively by partial/total alcoholic fermentation of fresh grap... more Wine is a food product produced exclusively by partial/total alcoholic fermentation of fresh grapes. From a chemical point of view, wine is a complex mixture consisting of water, sugar, ethanol, amino acids, polyphenolic compounds, anthocyanins, organic/inorganic materials. Viticulture depends on meterorological conditions. The wine industry from Romania is particularly involved in the controversial effects generated by climate change. Although the overall effects of climate change on Romanian viticulture are uncertain, it is known that grapevine yields diminish with the occurrence of abiotic stress, such as freezing temperatures, increasing soil salinity and drought because of the varying effects on grape quality. The purpose of this work is to present data relating to the composition characteristics of some quality wines from the Șimleul Silvaniei in the new climate conditions over the last few years. The biological material consisted of the varieties: Fetească regală (F.r.), Fete...

Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca: Horticulture, 2021

The present study is focused on the determination of mineral composition of international red win... more The present study is focused on the determination of mineral composition of international red wines (Merlot, Cabernet Sauvignon), white wines (Sauvignon blanc, Aligoté, Muscat Ottonel, Italian Riesling) and native red wines (Feteasca neagră, Burgund mare, Băbeasca neagră), white wines (Feteasca regală, Fetească albă, Băbeasca gri, Șarba) produced in the Dealu Bujorului vineyard between 2014-2018, using Inductively Coupled Plasma Mass-Spectrometry (ICP-MS), and comparison of mineral composition of the soil. The high level of Ca, K, Na, Mg, P and Fe was observed in analyzed wine samples, the concentration of Na, Cu, As, Cd, Zn and Pb metals in analyzed wine samples were under Maximal Permissible Limit. The average concentrations of elements in the soil decrease in the following order: K, Na, Ca, Cu, Fe, P, Mg, Li, Co, Mn, Zn, Pb, Cr, As, U, Cd and Hg. Cu concentration in the topsoil of the Dealu Bujorului vineyard exceeds the maximum allowed limit (20 mg/kg Cu).

Agronomy, 2020

The study focussed on a nursery by analyzing its strategic choices to obtain the best profit on g... more The study focussed on a nursery by analyzing its strategic choices to obtain the best profit on grapevine planting material. The production of grapevine grafts involves high labor and material costs. In this study, Muscat Ottonel grape variety grafted on Oppenheim Sellection 4 rootstock was paraffined with different types of wax: standard wax (SW), paraffin with 8-chinolinol (8C) and paraffin with oxiquinolein (OX) (before callusing), and silver color (S), blue color (B) and standard (SW) paraffin (after grafting callusing and before planting in field nursery). After uprooting from the field nursery, all variants were paraffined with red paraffin for storage. The unit cost price was calculated based on total expenses and the yield of grafts obtained in the vine field nursery. The lowest price per unit cost was recorded for the 8C/S variant, directly related to the first quality yield after uprooting from the nursery. The highest profit rate was for the 8C/S variant, while the lowest...

Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca. Horticulture, 2020

The presence of trace, heavy metals in foodstuffs is of intense public interest. The aim of this ... more The presence of trace, heavy metals in foodstuffs is of intense public interest. The aim of this study was to determine the metal contents in most known commercial fruit juices present on the Romanian market. The multielement analysis was made using the ICP-MS technique, after appropriate dilution, using the external standard calibration method. Multifruit, mango, and kiwi juice have recoded the highest concentration of Cu, while apple and pear juice has recoded the lowest concentration, and in the case of Zn, peach juice has recoded the highest concentration. Concerning Pb, Cd, and As concentration, apple, peach, and multifruit juices recorded the highest levels of concentration. The concentration of Zn, Cu, Co, and As generally, was higher in the juice samples packed in boxes, while Ni, Cr, Pb, and Cd recorded the highest values in the juice packed in plastic bottles.

Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca. Horticulture, 2019

The primary objectives of this research were to determine the concentration of some inorganic tra... more The primary objectives of this research were to determine the concentration of some inorganic trace components, to evaluate the concentration levels of these in Romanian wines by daily consumption of wine and the health risk of inorganic trace components intake at these rates form Romanian wine. The results indicated that the concentration levels of inorganic components in red wine decreased in the order Zn>Mn>Cr>Cu>Ni>Pb>Co>Cd, in case of white wine decreased in the order Zn>Mn>Cu>Cr>Ni>Pb>Co>Cd. Based on a 60-kilogram adult person, and moderate consumption of 200 milliliters of wine/day, the estimated daily intake of these inorganic components from wines was well below the daily allowance. The target hazard quotient suggests that the exposed humans would not experience significant health risks when ingesting these individual elements from daily consumption of 200 milliliters of Romanian wines/day.

Studia Universitatis Babeș-Bolyai Chemia, Apr 20, 2018

Pb and 87 Sr/ 86 Sr isotopes from wines was performed for establishing reliable markers for wine ... more Pb and 87 Sr/ 86 Sr isotopes from wines was performed for establishing reliable markers for wine geographical origin. For all tested wine samples, the toxic metals contents were found in quantities below the limits imposed by legislation. The highest concentration of heavy metals (Cd and Pb) was found in red wine Cabernet Sauvignon [Cd (0.14±0.01 µg/L) (2013)], followed by the same variety of wine from 2012 [Cd (0.14±0.03 µg/L)], in case of Pb the highest concentration was recorded by Merlot [Pb (54.33±1.00 µg/L) (2011)] followed by the same variety of wine but from 2012 [Cd (51.20±1.19 µg/L). Concerning the concentration of the elements in the white wine, it can be noticed that they recorded close concentration as red wine, Muscat Ottonel [Cd (0.12±0.01 µg/L) (2011)], Feteasca Alba [Cd (0.12±0.01 µg/L) (2012)], in case of Pb from white wines the highest concentration was recorded by Feteasca Alba [Pb (52.07±0.50 µg/L) (2012)], Feteasca Regala [Cd (52.29±1.00 µg/L) (2012)]. The highest mean of 87 Sr/ 86 Sr isotopic ratio was obtained at Feteasca Neagra variety [0.726±0.004 (0.575%, 2014)] and Muscat Ottonel variety [0.723±0.003 (0.416 % 2016)]. A possible explanation for the higher mean of 87 Sr/ 86 Sr isotopic ration for wine can be

Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca. Horticulture, Nov 26, 2017

Daily consumption, wine contributes to the requirements of essential elements, such as Ca, Fe, Mn... more Daily consumption, wine contributes to the requirements of essential elements, such as Ca, Fe, Mn, Mo, Co, Cr, K, Ni, Se and Zn for humans. However, the presence of significant amount of heavy metal in wine may harm the health of consumers. The present work is aimed at establishing the heavy metal content in red wines from Dealu Bujorului vineyard using ICP-MS method for the determination of metals content. In this study 3 red wines obtained from 'Băbească neagră', 'Negru Aromat' and 'Burgund Mare' cultivars were investigated. The wine samples were obtained from micro-wine production under conditions of 2014, 2015, 2016 from Dealu Bujorului vineyard. The determination of 13 elements was performed with ICP-MS. The high level of Ca (64.81-62.49 mg/L), Mg (132.61-101.44 mg/L) and Fe were observed in the wine samples analysed. Heavy metals like As, Cd, U, Hg and Pb was found below acceptable limits. Concentration of Na (1 mg/L), Cu (1 mg/L), As (0.2 mg/L), Cd (0.01 mg/L), Zn (5 mg/L) and Pb (0.15 mg/L) metals in analysed wine samples were under Maximum Permissible Limits (MPL), respectively as published by the Organization of Vine and Wine. Calcium and magnesium were the most abundant elements in all investigated wine samples. Concentration of Na (1 mg/L), Cu (1 mg/L), As (0.2 mg/L), Cd (0.01 mg/L), Zn (5 mg/L) and Pb (0.15 mg/L) in analysed wine samples were under Maximum Permissible Limits (MPL), respectively as published by the Organization of Vine and Wine.

Molecules, 2020

The purpose of this study was to evaluate the environmental quality of polluted areas near the Ba... more The purpose of this study was to evaluate the environmental quality of polluted areas near the Baia Mare Mining and Smelting Complex for future improvements the quality of the environment in polluted areas, such as the city of Baia Mare and its surroundings. Samples of soil and organs of grapevine (Vitis vinifera L.) were collected from Baia Mare, Baia Sprie and surrounding areas (Simleul Silvaniei) and their content of Cu, Zn, Pb, Cd, Ni, Co, As, Cr, Hg were analyzed. Most soil and plant samples showed higher metal concentrations in Baia Mare and Baia Sprie areas compared to Simleul Silvaniei, exceeding the normal values. The results obtained from the translocation factors, mobility ratio, as well as from Pearson correlation study confirmed that very useful information is recorded in plant organs: root, canes, leaves and fruit. Results also indicated that Vitis vinifera L. has some highly effective strategies to tolerate heavy metal-induced stress, may also be useful as a vegetatio...

Studia Universitatis Babeș-Bolyai Chemia, 2019

The concentration of 12 metals (Mg, Ca, K, M, Fe, Co, Ni, Cr, Cu, Pb, Cd, and Zn) in 14 classes o... more The concentration of 12 metals (Mg, Ca, K, M, Fe, Co, Ni, Cr, Cu, Pb, Cd, and Zn) in 14 classes of alcoholic beverages were determined by ICP-MS after HNO3/H2O2 digestion. The mean concentration of metals (µg/mL) in these alcoholic beverages varied in the ranges 0.

Food and Environment Safety Journal, Feb 1, 2017

Wine is a food product produced exclusively by partial/total alcoholic fermentation of fresh grap... more Wine is a food product produced exclusively by partial/total alcoholic fermentation of fresh grapes. From a chemical point of view, wine is a complex mixture consisting of water, sugar, ethanol, amino acids, polyphenolic compounds, anthocyanins, organic/inorganic materials. Viticulture depends on meterorological conditions. The wine industry from Romania is particularly involved in the controversial effects generated by climate change. Although the overall effects of climate change on Romanian viticulture are uncertain, it is known that grapevine yields diminish with the occurrence of abiotic stress, such as freezing temperatures, increasing soil salinity and drought because of the varying effects on grape quality. The purpose of this work is to present data relating to the composition characteristics of some quality wines from the Șimleul Silvaniei in the new climate conditions over the last few years. The biological material consisted of the varieties: Fetească regală (F.r.), Fetească albă (F.r.), Italian Riesling (R.i.) and Furmint (F.m.). The weight values obtained for 100 grains (182.06±5.98 g F.a. 2014), sugar (202.28±2.98 g/L F.a 2013), titratable acidity (9.39±0.03 g/L C 4 H 4 O 6 F.m 2014), acidity (4.70±0.09 g/L H 2 SO 4 F.m. 2014), pH (3.92±0.24 R.i. 2014) in grapes and reducing sugars (2.63±0.17 g/L F.a. 2015), total dry extract (27.73±1.29 g/L R.i. 2013), non-reducing extract (26.62±0.46 g/L R.i. 2013), total acidity (7.65±0.11 g/L C 4 H 4 O 6 F.r. 2013), volatile acidity (0.57±0.04 g/L CH 3 COOH) of wine, are specific to the four varieties analyzed. The correlation analysis revealed a number of strong correlations between the qualitative characteristics of wine and composition of grapes.

Fermentation, 2022

Malolactic fermentation (MLF) or biological decrease of wine acidity is defined as the enzymatic ... more Malolactic fermentation (MLF) or biological decrease of wine acidity is defined as the enzymatic bioconversion of malic acid in lactic acid, a process performed by lactic acid bacteria (LAB). The procedures for the isolation of new indigenous LAB strains from the red wines produced in Copou Iasi wine center (NE of Romania) undergoing spontaneous malolactic fermentation, resulted in the obtaining of 67 catalase-negative and Gram-positive LAB strains. After testing in the malolactic fermentative process, application of specific screening procedures and identification (API 50 CH), two bacterial strains belonging to the species Oenococcus oeni (strain 13-7) and Lactobacillus plantarum (strain R1-1) with high yield of malolactic bioconversion, non-producing biogenic amines, and with active extracellular enzymes related to wine aroma, were retained and characterized. Tested in synthetic medium (MRS-TJ) for 10 days, the new isolated LAB strains metabolized over 98% of the malic acid at eth...

Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca. Agriculture, May 18, 2018

Leaf photosynthetic capacity is a key parameter determining crop yield; it is enhanced by moderat... more Leaf photosynthetic capacity is a key parameter determining crop yield; it is enhanced by moderate soil moisture and reduced in both severe water deficit and excessive water conditions. The aim of this work was to evaluate the wheat variety photosynthetic capacity in two main phenological stages. The evaluation of photosynthesis capacity of studied winter wheat varieties in Transylvanian Plain conditions offer relevant information on Romanian genetic material type and paving the way of new research directed to a new wheat breeding program criteria and for improvement of those.

Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca. Horticulture, 2016

The degree of fertility coefficient absoltul (CFA) and coefficient ratio (CFR) we can see that t... more The degree of fertility coefficient absoltul (CFA) and coefficient ratio (CFR) we can see that the highest values were obtained from the variety 'Fetească regală' (54.5 ± 1.00% fertility; 1.60 ± 1.00 coefficient absolute (CFA ) and 0.86 ± 1.00 coefficinet relative (CFR). The analysis of physical-mechanical based on the results it can be seen that the variety 'Bujoru' showed the best values for all parameters analyzed (303.5 ± 1.0 (g) the average weight of the grape bunch, 278.07 ± 1.0 (g) weight of 100 berries; 213.66 ± 0.67 (g / L) sucrose sugar concent and 4.331 ± 1.0 (kg / comes) average coming production).

Horticulturae

Annual grapevine pruning produces large amounts of unused waste as woody canes. The current study... more Annual grapevine pruning produces large amounts of unused waste as woody canes. The current study is aimed at the sustainable valorization of viticultural waste by establishing phenolic compound extraction conditions, composition, and biological potential of crude and purified cane extracts of three Vitis vinifera L. cultivars growing in temperate climate conditions. Grapevine canes proved to be rich in carbohydrates and minerals; chlorophyll and carotenoids were also quantified. The highest yield of phenolic compounds was obtained when dry canes (<0.5 mm) were subjected to liquid–solid extraction (1:20 w/v) with 70% (v/v) ethanol, for 4 h at 35 °C, after a preliminary ultrasound treatment (6 min., 42 KHz); Pinot Gris canes showing the highest concentration of flavonoids and non-flavonoids. Stilbenes (resveratrol) and flavan-3-ols (catechin and epicatechin) were the main phenolic representative, resveratrol concentrations varying significantly between red-black (419.01–425.60 μg/...

Horticulturae

One of the main issues for sustainable global development with high priority is food security. Th... more One of the main issues for sustainable global development with high priority is food security. The negative effects of contaminants on crop quality have threatened both food security and human health. Long-term heavy metal exposure from food, drinking water, or other occupational sources causes serious problems, such as kidney failure, hepatotoxicity, and neurotoxicity. This study was conducted to determine the concentrations of three toxic trace elements (As, Cd, Pb) and one microelement (Zn) in fruits and vegetables using ICP-MS, and it also sought to reduce the concentrations of metals by washing with vinegar (5% and 10% acetic acid). The potential of vinegar to influence heavy metal contents may be due to its effect on pH values that influence the solution chemistry of the heavy metals, such as hydrolysis, redox reactions, precipitation, and availability of heavy metals. Sample origin has a significant influence in terms of metal accumulation; values up to 35%, 68%, 67%, and 3% ...

DOAJ (DOAJ: Directory of Open Access Journals), Dec 1, 2021

Annals of the University Dunarea de Jos of Galati. Fascicle VI: Food Technology, 2018

The quality of any wine is intrinsically dependent on the quality and composition of the grapes u... more The quality of any wine is intrinsically dependent on the quality and composition of the grapes used to produce it. In traditional winemaking countries such as Germany and France, wine quality is determined by geographic origin or the terroir of the wine. The aim of the present research is to determine the quality of wines from the main vineyards of Romania. In terms of quality rating, they display particular characters of the varieties, as well as the ecoclimatic conditions and ecopedological influence on the quality of wine. The work offers new information on the quality of the white wines obtained in main vineyards of Romania, useful for their promotion and marketing. The variation of the physico-chemical characteristics and elemental concentration represents a strong geological marker for wines geographical traceability.

Agricultura, 2018

The complex composition of a red wine is due mainly to the presence of phenolic substances and an... more The complex composition of a red wine is due mainly to the presence of phenolic substances and anthocyanins with a major role to form the quality characteristics: color, aroma and flavour. The aim of this paper is to analyse the physicochemical composition of the five young wines from the Dealu Bujorului Vineyard (Merlot, Feteasca Neagra, Burgund Mare, Babeasca Neagra and Cabernet Sauvignon), obtained under the climatic conditions of the year of 2017. The main oenological parameters, color intensity, total polyphenol content and anthocyanins were determined according O.I.V. methods. Results show that wines recorded the highest values for alcohol content 14.18±0.09 (% vol.) for Merlot, 14.17±0.21 (% vol.) for Feteasca Neagra and the lowest values of alcoholic strength were recorded by Cabernet Sauvignon 13.77±0.25 (% vol.). A variation in total phenolic contents of tested wine samples was observed, the highest values of the total polyphenols being recorded by Babeasca Neagra wine (2....

From the chemical point of view wine is a complex mixture of water, sugar, inorganic and organic ... more From the chemical point of view wine is a complex mixture of water, sugar, inorganic and organic materials. There are some factor which influence wine composition: grape varieties, soil type, the climate, type of culture, agrochemical product (fertilizers and pesticides) and the practices used for wine making. These factors are directly involved in wine and wine characterization. Besides the quality issues that these heavy metals create in the wine, they also affect the health of wine consumers. The aim of this paper is to determine the qualitative charateristics of wine, but also to determine the quantitative of five elements: Na, Mg, Cu, Pb, and Cd from wine, using FAAS. The bilogical material used was compoused by the varieties: Fetească albă, Fetească regală, Riesling Italian and Pinot gris grown in Silvania vineyard. The values obtained for alcoholic strength, total acidity, residual sugar and dry extract is specific for the four analysed varieties. The average concentration of...

Wine is a food product produced exclusively by partial/total alcoholic fermentation of fresh grap... more Wine is a food product produced exclusively by partial/total alcoholic fermentation of fresh grapes. From a chemical point of view, wine is a complex mixture consisting of water, sugar, ethanol, amino acids, polyphenolic compounds, anthocyanins, organic/inorganic materials. Viticulture depends on meterorological conditions. The wine industry from Romania is particularly involved in the controversial effects generated by climate change. Although the overall effects of climate change on Romanian viticulture are uncertain, it is known that grapevine yields diminish with the occurrence of abiotic stress, such as freezing temperatures, increasing soil salinity and drought because of the varying effects on grape quality. The purpose of this work is to present data relating to the composition characteristics of some quality wines from the Șimleul Silvaniei in the new climate conditions over the last few years. The biological material consisted of the varieties: Fetească regală (F.r.), Fete...

Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca: Horticulture, 2021

The present study is focused on the determination of mineral composition of international red win... more The present study is focused on the determination of mineral composition of international red wines (Merlot, Cabernet Sauvignon), white wines (Sauvignon blanc, Aligoté, Muscat Ottonel, Italian Riesling) and native red wines (Feteasca neagră, Burgund mare, Băbeasca neagră), white wines (Feteasca regală, Fetească albă, Băbeasca gri, Șarba) produced in the Dealu Bujorului vineyard between 2014-2018, using Inductively Coupled Plasma Mass-Spectrometry (ICP-MS), and comparison of mineral composition of the soil. The high level of Ca, K, Na, Mg, P and Fe was observed in analyzed wine samples, the concentration of Na, Cu, As, Cd, Zn and Pb metals in analyzed wine samples were under Maximal Permissible Limit. The average concentrations of elements in the soil decrease in the following order: K, Na, Ca, Cu, Fe, P, Mg, Li, Co, Mn, Zn, Pb, Cr, As, U, Cd and Hg. Cu concentration in the topsoil of the Dealu Bujorului vineyard exceeds the maximum allowed limit (20 mg/kg Cu).

Agronomy, 2020

The study focussed on a nursery by analyzing its strategic choices to obtain the best profit on g... more The study focussed on a nursery by analyzing its strategic choices to obtain the best profit on grapevine planting material. The production of grapevine grafts involves high labor and material costs. In this study, Muscat Ottonel grape variety grafted on Oppenheim Sellection 4 rootstock was paraffined with different types of wax: standard wax (SW), paraffin with 8-chinolinol (8C) and paraffin with oxiquinolein (OX) (before callusing), and silver color (S), blue color (B) and standard (SW) paraffin (after grafting callusing and before planting in field nursery). After uprooting from the field nursery, all variants were paraffined with red paraffin for storage. The unit cost price was calculated based on total expenses and the yield of grafts obtained in the vine field nursery. The lowest price per unit cost was recorded for the 8C/S variant, directly related to the first quality yield after uprooting from the nursery. The highest profit rate was for the 8C/S variant, while the lowest...

Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca. Horticulture, 2020

The presence of trace, heavy metals in foodstuffs is of intense public interest. The aim of this ... more The presence of trace, heavy metals in foodstuffs is of intense public interest. The aim of this study was to determine the metal contents in most known commercial fruit juices present on the Romanian market. The multielement analysis was made using the ICP-MS technique, after appropriate dilution, using the external standard calibration method. Multifruit, mango, and kiwi juice have recoded the highest concentration of Cu, while apple and pear juice has recoded the lowest concentration, and in the case of Zn, peach juice has recoded the highest concentration. Concerning Pb, Cd, and As concentration, apple, peach, and multifruit juices recorded the highest levels of concentration. The concentration of Zn, Cu, Co, and As generally, was higher in the juice samples packed in boxes, while Ni, Cr, Pb, and Cd recorded the highest values in the juice packed in plastic bottles.

Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca. Horticulture, 2019

The primary objectives of this research were to determine the concentration of some inorganic tra... more The primary objectives of this research were to determine the concentration of some inorganic trace components, to evaluate the concentration levels of these in Romanian wines by daily consumption of wine and the health risk of inorganic trace components intake at these rates form Romanian wine. The results indicated that the concentration levels of inorganic components in red wine decreased in the order Zn>Mn>Cr>Cu>Ni>Pb>Co>Cd, in case of white wine decreased in the order Zn>Mn>Cu>Cr>Ni>Pb>Co>Cd. Based on a 60-kilogram adult person, and moderate consumption of 200 milliliters of wine/day, the estimated daily intake of these inorganic components from wines was well below the daily allowance. The target hazard quotient suggests that the exposed humans would not experience significant health risks when ingesting these individual elements from daily consumption of 200 milliliters of Romanian wines/day.

Studia Universitatis Babeș-Bolyai Chemia, Apr 20, 2018

Pb and 87 Sr/ 86 Sr isotopes from wines was performed for establishing reliable markers for wine ... more Pb and 87 Sr/ 86 Sr isotopes from wines was performed for establishing reliable markers for wine geographical origin. For all tested wine samples, the toxic metals contents were found in quantities below the limits imposed by legislation. The highest concentration of heavy metals (Cd and Pb) was found in red wine Cabernet Sauvignon [Cd (0.14±0.01 µg/L) (2013)], followed by the same variety of wine from 2012 [Cd (0.14±0.03 µg/L)], in case of Pb the highest concentration was recorded by Merlot [Pb (54.33±1.00 µg/L) (2011)] followed by the same variety of wine but from 2012 [Cd (51.20±1.19 µg/L). Concerning the concentration of the elements in the white wine, it can be noticed that they recorded close concentration as red wine, Muscat Ottonel [Cd (0.12±0.01 µg/L) (2011)], Feteasca Alba [Cd (0.12±0.01 µg/L) (2012)], in case of Pb from white wines the highest concentration was recorded by Feteasca Alba [Pb (52.07±0.50 µg/L) (2012)], Feteasca Regala [Cd (52.29±1.00 µg/L) (2012)]. The highest mean of 87 Sr/ 86 Sr isotopic ratio was obtained at Feteasca Neagra variety [0.726±0.004 (0.575%, 2014)] and Muscat Ottonel variety [0.723±0.003 (0.416 % 2016)]. A possible explanation for the higher mean of 87 Sr/ 86 Sr isotopic ration for wine can be

Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca. Horticulture, Nov 26, 2017

Daily consumption, wine contributes to the requirements of essential elements, such as Ca, Fe, Mn... more Daily consumption, wine contributes to the requirements of essential elements, such as Ca, Fe, Mn, Mo, Co, Cr, K, Ni, Se and Zn for humans. However, the presence of significant amount of heavy metal in wine may harm the health of consumers. The present work is aimed at establishing the heavy metal content in red wines from Dealu Bujorului vineyard using ICP-MS method for the determination of metals content. In this study 3 red wines obtained from 'Băbească neagră', 'Negru Aromat' and 'Burgund Mare' cultivars were investigated. The wine samples were obtained from micro-wine production under conditions of 2014, 2015, 2016 from Dealu Bujorului vineyard. The determination of 13 elements was performed with ICP-MS. The high level of Ca (64.81-62.49 mg/L), Mg (132.61-101.44 mg/L) and Fe were observed in the wine samples analysed. Heavy metals like As, Cd, U, Hg and Pb was found below acceptable limits. Concentration of Na (1 mg/L), Cu (1 mg/L), As (0.2 mg/L), Cd (0.01 mg/L), Zn (5 mg/L) and Pb (0.15 mg/L) metals in analysed wine samples were under Maximum Permissible Limits (MPL), respectively as published by the Organization of Vine and Wine. Calcium and magnesium were the most abundant elements in all investigated wine samples. Concentration of Na (1 mg/L), Cu (1 mg/L), As (0.2 mg/L), Cd (0.01 mg/L), Zn (5 mg/L) and Pb (0.15 mg/L) in analysed wine samples were under Maximum Permissible Limits (MPL), respectively as published by the Organization of Vine and Wine.

Molecules, 2020

The purpose of this study was to evaluate the environmental quality of polluted areas near the Ba... more The purpose of this study was to evaluate the environmental quality of polluted areas near the Baia Mare Mining and Smelting Complex for future improvements the quality of the environment in polluted areas, such as the city of Baia Mare and its surroundings. Samples of soil and organs of grapevine (Vitis vinifera L.) were collected from Baia Mare, Baia Sprie and surrounding areas (Simleul Silvaniei) and their content of Cu, Zn, Pb, Cd, Ni, Co, As, Cr, Hg were analyzed. Most soil and plant samples showed higher metal concentrations in Baia Mare and Baia Sprie areas compared to Simleul Silvaniei, exceeding the normal values. The results obtained from the translocation factors, mobility ratio, as well as from Pearson correlation study confirmed that very useful information is recorded in plant organs: root, canes, leaves and fruit. Results also indicated that Vitis vinifera L. has some highly effective strategies to tolerate heavy metal-induced stress, may also be useful as a vegetatio...

Studia Universitatis Babeș-Bolyai Chemia, 2019

The concentration of 12 metals (Mg, Ca, K, M, Fe, Co, Ni, Cr, Cu, Pb, Cd, and Zn) in 14 classes o... more The concentration of 12 metals (Mg, Ca, K, M, Fe, Co, Ni, Cr, Cu, Pb, Cd, and Zn) in 14 classes of alcoholic beverages were determined by ICP-MS after HNO3/H2O2 digestion. The mean concentration of metals (µg/mL) in these alcoholic beverages varied in the ranges 0.