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Varga Á, Bihari-Lucena E, Ladányi M, Szabó-Nótin B, Galambos I, Koris A. Experimental Study and Modeling of Beer Dealcoholization via Reverse Osmosis. MEMBRANES 2023; 13:329. [PMID: 36984716 PMCID: PMC10056248 DOI: 10.3390/membranes13030329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Revised: 02/13/2023] [Accepted: 03/01/2023] [Indexed: 06/18/2023]
Abstract
The goals of the present investigation are to study and to model pale lager beer dealcoholization via reverse osmosis (RO). Samples were dealcoholized at a temperature of 15 ± 1 °C. An Alfa Laval RO99 membrane with a 0.05 m2 surface was used. The flux values were measured during the separations. The ethanol content, extract content, bitterness, color, pH, turbidity, and dynamic viscosity of beer and permeate samples were measured. The initial flux values were determined using linear regression. The initial ethanol flux (JEtOH 0) values were calculated from the initial flux values and the ethanol content values. A 2P full factorial experimental design was applied, and the factors were as follows: transmembrane pressure (TMP): 10, 20, 30 bar; retentate flow rate (Q): 120, 180, 240 L/h; JEtOH 0 was considered as the response. The effect sizes of the significant parameters were calculated. The global maximum of the objective function was found using a self-developed Grid Search code. The changes in the analytical parameters were appropriate. The TMP had a significant effect, while the Q had no significant effect on the JEtOH 0. The effect size of the TMP was 1.20. The optimal value of the factor amounted to TMP = 30 bar. The predicted JEtOH 0 under the above conditions was 121.965 g/m2 h.
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Affiliation(s)
- Áron Varga
- Department of Research and Development, Pécsi Brewery, Alkotmány utca 94., H-7624 Pécs, Hungary
| | - Eszter Bihari-Lucena
- Department of Food Process Engineering, Hungarian University of Agriculture and Life Sciences, Ménesi út 44., H-1118 Budapest, Hungary
- Department of Agricultural Business and Economics, Hungarian University of Agriculture and Life Sciences, Villányi út 29-43., H-1118 Budapest, Hungary
- Department of Bioengineering and Fermentation Technology, Hungarian University of Agriculture and Life Sciences, Ménesi út 45., H-1118 Budapest, Hungary
- ICON PLC, Szépvölgyi út 39., H-1037 Budapest, Hungary
| | - Márta Ladányi
- Department of Applied Statistics, Hungarian University of Agriculture and Life Sciences, Villányi út 29-43., H-1118 Budapest, Hungary
| | - Beatrix Szabó-Nótin
- Department of Fruit and Vegetable Processing Technology, Hungarian University of Agriculture and Life Sciences, Villányi út 29-43., H-1118 Budapest, Hungary
| | - Ildikó Galambos
- Department of Soós Ernő Research and Development Center, University of Pannonia, Zrínyi Miklós utca 18., H-8800 Nagykanizsa, Hungary
| | - András Koris
- Department of Food Process Engineering, Hungarian University of Agriculture and Life Sciences, Ménesi út 44., H-1118 Budapest, Hungary
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Bóna Á, Varga Á, Galambos I, Nemestóthy N. Dealcoholization of Unfiltered and Filtered Lager Beer by Hollow Fiber Polyelectrolyte Multilayer Nanofiltration Membranes-The Effect of Ion Rejection. MEMBRANES 2023; 13:283. [PMID: 36984669 PMCID: PMC10058455 DOI: 10.3390/membranes13030283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 02/23/2023] [Accepted: 02/25/2023] [Indexed: 06/18/2023]
Abstract
Membrane-based beverage dealcoholization is a successful process for producing low- and non-alcoholic beer and represents a fast-growing industry. Polyamide NF and RO membranes are commonly applied for this process. Polyelectrolyte multilayer (PEM) NF membranes are emerging as industrially relevant species, and their unique properties (usually hollow fiber geometry, high and tunable selectivity, low fouling) underlines the importance of testing them in the food industry as well. To test PEM NF membranes for beer dealcoholization at a small pilot scale, we dealcoholized filtered and unfiltered lager beer with the tightest available commercial polyelectrolyte multilayer NF membrane (NX Filtration dNF40), which has a MWCO = 400 Da, which is quite high for these purposes. Dealcoholization is possible with a reasonable flux (10 L/m2h) at low pressures (5-8.6 bar) with a real extract loss of 15-18% and an alcohol passage of ~100%. Inorganic salt passage is high (which is typical for PEM NF membranes), which greatly affected beer flavor. During the dealcoholization process, the membrane underwent changes which substantially increased its salt rejection values (MgSO4 passage decreased fourfold) while permeance loss was minimal (less than 10%). According to our sensory evaluation, the process yielded an acceptable tasting beer which could be greatly enhanced by the addition of the lost salts and glycerol.
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Affiliation(s)
- Áron Bóna
- Soós Ernő Research and Development Center, University of Pannonia, Vár u. 8, H-8800 Nagykanizsa, Hungary
| | - Áron Varga
- Department of Research and Development, Pécsi Brewery, Alkotmány utca 94, H-7624 Pécs, Hungary
| | - Ildikó Galambos
- Soós Ernő Research and Development Center, University of Pannonia, Vár u. 8, H-8800 Nagykanizsa, Hungary
| | - Nándor Nemestóthy
- Research Institute on Bioengineering, Membrane Technology and Energetics, University of Pannonia, Egyetem u. 10, H-8200 Veszprém, Hungary
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Ivić I, Kopjar M, Obhođaš J, Vinković A, Babić J, Mesić J, Pichler A. Influence of the Processing Parameters on the Aroma Profile and Chemical Composition of Conventional and Ecological Cabernet Sauvignon Red Wines during Concentration by Reverse Osmosis. MEMBRANES 2022; 12:1008. [PMID: 36295766 PMCID: PMC9609608 DOI: 10.3390/membranes12101008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 10/10/2022] [Accepted: 10/12/2022] [Indexed: 06/16/2023]
Abstract
Wine aroma represents one of the most important quality parameters and it is influenced by various factors, such as climate conditions, viticulture and vinification techniques, storage conditions, etc. Wines produced from conventionally and ecologically grown grapes of the same variety have different chemical compositions and aroma profiles. The composition of wine can also be influenced by the additional treatment of wine, such as the concentration of wine by reverse osmosis (RO). The aim of this study was to investigate the influence of four different pressures (2.5, 3.5, 4.5 and 5.5 MPa) and two temperature regimes (with and without cooling) on the aroma profile and chemical composition of conventional and ecological Cabernet Sauvignon red wine during concentration by reverse osmosis. The results showed that different processing parameters influenced the permeate flux, the retentate temperature and the compounds retention. Higher working pressures (4.5 and 5.5 MPa) and the regime, with cooling, resulted in a higher retention of the total aroma compounds than the opposite processing parameters. The retention of individual compounds depended also on their chemical properties and their interactions with the membrane surface. The reverse osmosis membranes proved to be permeable for ethanol, acetic acid or undesirable 4-ethylphenol and 4-ethylguaiacol that made them applicable for their correction or removal.
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Affiliation(s)
- Ivana Ivić
- Faculty of Food Technology Osijek, Josip Juraj Strossmayer University, F. Kuhača 18, 31000 Osijek, Croatia
| | - Mirela Kopjar
- Faculty of Food Technology Osijek, Josip Juraj Strossmayer University, F. Kuhača 18, 31000 Osijek, Croatia
| | - Jasmina Obhođaš
- Ruđer Bošković Institute, Bijenička 54, 10000 Zagreb, Croatia
| | | | - Jurislav Babić
- Faculty of Food Technology Osijek, Josip Juraj Strossmayer University, F. Kuhača 18, 31000 Osijek, Croatia
| | - Josip Mesić
- Polytechnic in Požega, Vukovarska 17, 34000 Požega, Croatia
| | - Anita Pichler
- Faculty of Food Technology Osijek, Josip Juraj Strossmayer University, F. Kuhača 18, 31000 Osijek, Croatia
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Yadav D, Karki S, Ingole PG. Nanofiltration (NF) Membrane Processing in the Food Industry. FOOD ENGINEERING REVIEWS 2022. [DOI: 10.1007/s12393-022-09320-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Ivić I, Kopjar M, Buljeta I, Pichler D, Mesić J, Pichler A. Influence of Reverse Osmosis Process in Different Operating Conditions on Phenolic Profile and Antioxidant Activity of Conventional and Ecological Cabernet Sauvignon Red Wine. MEMBRANES 2022; 12:76. [PMID: 35054602 PMCID: PMC8777971 DOI: 10.3390/membranes12010076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 12/31/2021] [Accepted: 01/04/2022] [Indexed: 11/29/2022]
Abstract
Red wine polyphenols are responsible for its colour, astringency, and bitterness. They are known as strong antioxidants that protect the human body from the harmful effects of free radicals and prevent various diseases. Wine phenolics are influenced by viticulture methods and vinification techniques, and therefore, conventionally and ecologically produced wines of the same variety do not have the same phenolic profile. Ecological viticulture avoids the use of chemical adjuvants in vineyards in order to minimise their negative influence on the environment, wine, and human health. The phenolic profile and antioxidant activity of wine can also be influenced by additional treatments, such as concentration by reverse osmosis. The aim of this study was to investigate the influence of four different pressures (2.5, 3.5, 4.5, and 5.5 MPa) and two temperature regimes (with and without cooling) on the phenolic profile and antioxidant activity of conventional and ecological Cabernet Sauvignon red wine during concentration by reverse osmosis. The results showed that retention of individual phenolic compounds depended on the applied processing parameters, chemical composition of the initial wine, and chemical properties of a compound. Higher pressure and retentate cooling favoured the retention of total polyphenols, flavonoids, and monomeric anthocyanins, compared to the opposite conditions. The same trend was observed for antioxidant activity.
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Affiliation(s)
- Ivana Ivić
- Faculty of Food Technology Osijek, Josip Juraj Strossmayer University, F. Kuhača 18, 31000 Osijek, Croatia; (I.I.); (M.K.); (I.B.)
| | - Mirela Kopjar
- Faculty of Food Technology Osijek, Josip Juraj Strossmayer University, F. Kuhača 18, 31000 Osijek, Croatia; (I.I.); (M.K.); (I.B.)
| | - Ivana Buljeta
- Faculty of Food Technology Osijek, Josip Juraj Strossmayer University, F. Kuhača 18, 31000 Osijek, Croatia; (I.I.); (M.K.); (I.B.)
| | | | - Josip Mesić
- Polytechnic in Požega, Vukovarska 17, 34000 Požega, Croatia;
| | - Anita Pichler
- Faculty of Food Technology Osijek, Josip Juraj Strossmayer University, F. Kuhača 18, 31000 Osijek, Croatia; (I.I.); (M.K.); (I.B.)
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Garde-Cerdán T, Souza-da Costa B, Rubio-Bretón P, Pérez-Álvarez EP. Nanotechnology: recent advances in viticulture and enology. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2021; 101:6156-6166. [PMID: 34184284 DOI: 10.1002/jsfa.11406] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 05/12/2021] [Accepted: 06/28/2021] [Indexed: 06/13/2023]
Abstract
Nowadays, nanoscience is a leading modern science that has a major impact on the food, pharmaceutical, and agriculture sectors. Several nanomaterials show a great potential for use during vine growing and winemaking processes. In viticulture, nanotechnology can be applied to protect vines against phytopathogens and to improve grape yield and quality. Thus, nanotechnology may allow the use of lesser amounts of phytochemical compounds, reducing environmental impact and promoting a more sustainable agriculture. And in winemaking, nanomaterials and nanodevices can be used to control the growth of spoilage microorganisms and to reduce or remove undesirable compounds, such as ethyl phenols (4-ethylphenol and 4-ethylguaiacol), biogenic amines, and tartaric acid, and so on, as well as to facilitate some technological processes (i.e. in wine filtration to eliminate microorganisms). This review summarizes recent studies with applications of nanotechnology in viticulture in order to facilitate agronomic management and optimize grape production and in enology to improve wine quality and safety. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Teresa Garde-Cerdán
- Grupo VIENAP, Instituto de Ciencias de la Vid y del Vino (CSIC, Universidad de La Rioja, Gobierno de La Rioja), Logroño, Spain
| | - Bianca Souza-da Costa
- Grupo VIENAP, Instituto de Ciencias de la Vid y del Vino (CSIC, Universidad de La Rioja, Gobierno de La Rioja), Logroño, Spain
| | - Pilar Rubio-Bretón
- Grupo VIENAP, Instituto de Ciencias de la Vid y del Vino (CSIC, Universidad de La Rioja, Gobierno de La Rioja), Logroño, Spain
| | - Eva P Pérez-Álvarez
- Grupo VIENAP, Instituto de Ciencias de la Vid y del Vino (CSIC, Universidad de La Rioja, Gobierno de La Rioja), Logroño, Spain
- Centro de Edafología y Biología Aplicada del Segura (CEBAS-CSIC), Murcia, Spain
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Sam FE, Ma T, Liang Y, Qiang W, Atuna RA, Amagloh FK, Morata A, Han S. Comparison between Membrane and Thermal Dealcoholization Methods: Their Impact on the Chemical Parameters, Volatile Composition, and Sensory Characteristics of Wines. MEMBRANES 2021; 11:membranes11120957. [PMID: 34940458 PMCID: PMC8708490 DOI: 10.3390/membranes11120957] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 11/26/2021] [Accepted: 11/29/2021] [Indexed: 12/03/2022]
Abstract
Over the last few years, the dealcoholization of wine has piqued the interest of winemakers and researchers. Physical dealcoholization methods are increasingly used in the dealcoholization of wines because they can partially or completely reduce the alcohol content of wines. This study aimed to compare the chemical parameters, volatile composition and sensory quality of white, rosé and red wines dealcoholized by two physical dealcoholization methods: reverse osmosis (RO) and vacuum distillation (VD) at 0.7% v/v ethanol. RO and VD effectively reduced the ethanol concentration in all wines to the required 0.7% v/v, but also significantly affected most chemical parameters. The pH, free sulfur dioxide, total sulfur dioxide, and volatile acidity decreased significantly due to dealcoholization by RO and VD, while reducing sugars and total acidity increased significantly. VD resulted in higher color intensity, which was perceptible in dealcoholized rosé and red wines, while RO caused notable color differences in dealcoholized white and red wine fractions. RO were richer in esters (more ethyl esters and isoamyl acetate), higher alcohols, organic acids, terpenics and C13-norisoprenoids, and carbonyl compounds, while wines dealcoholized with VD had lower levels of these volatile compounds, which may reflect both the loss of esters into the distillate during evaporation and condensation (in the case of VD) and a shift in the chemical equilibrium responsible for ester formation and hydrolysis after ethanol removal. β-damascenone exhibited the highest OAV in all wines, however, losses equal to 35.54–61.98% in RO dealcoholized fractions and 93.62% to 97.39% in VD dealcoholized fractions were observed compared to the control wines. The predominant aroma series in the original and dealcoholized wines were fruity and floral but were greatly affected by VD. Sensory evaluation and PCA showed that dealcoholization by RO improved the fruity and floral notes (in rosé and red wines), color intensity, sweetness, viscosity, and aroma intensity better than dealcoholization by VD, while VD mainly enhanced the color of the dealcoholized wines. Both methods increased the acidity of the respective dealcoholized wines. Nevertheless, RO dealcoholized wines achieved higher acceptance by the panelists than VD dealcoholized wines. Therefore, RO may be a better method for producing dealcoholized (0.7% v/v) wines with minimal impact on aroma and sensory quality.
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Affiliation(s)
- Faisal Eudes Sam
- Gansu Key Laboratory of Viticulture and Enology, College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, China; (F.E.S.); (T.M.); (Y.L.); (W.Q.)
| | - Tengzhen Ma
- Gansu Key Laboratory of Viticulture and Enology, College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, China; (F.E.S.); (T.M.); (Y.L.); (W.Q.)
| | - Yuhua Liang
- Gansu Key Laboratory of Viticulture and Enology, College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, China; (F.E.S.); (T.M.); (Y.L.); (W.Q.)
| | - Wenle Qiang
- Gansu Key Laboratory of Viticulture and Enology, College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, China; (F.E.S.); (T.M.); (Y.L.); (W.Q.)
| | - Richard Atinpoore Atuna
- Department of Food Science and Technology, University for Development Studies, Nyankpala Campus, P.O. Box TL1882, Tamale 34983, Ghana; (R.A.A.); (F.K.A.)
| | - Francis Kweku Amagloh
- Department of Food Science and Technology, University for Development Studies, Nyankpala Campus, P.O. Box TL1882, Tamale 34983, Ghana; (R.A.A.); (F.K.A.)
| | - Antonio Morata
- Food Technology Department, Technical College of Agricultural Engineers, Technical University of Madrid, Avenida Complutense S/N, 28040 Madrid, Spain;
| | - Shunyu Han
- Gansu Key Laboratory of Viticulture and Enology, College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, China; (F.E.S.); (T.M.); (Y.L.); (W.Q.)
- Correspondence: ; Tel.: +86-138-9313-2658
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Techniques for Dealcoholization of Wines: Their Impact on Wine Phenolic Composition, Volatile Composition, and Sensory Characteristics. Foods 2021; 10:foods10102498. [PMID: 34681547 PMCID: PMC8535880 DOI: 10.3390/foods10102498] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 10/09/2021] [Accepted: 10/11/2021] [Indexed: 12/29/2022] Open
Abstract
The attention of some winemakers and researchers over the past years has been drawn towards the partial or total dealcoholization of wines and alcoholic beverages due to trends in wine styles, and the effect of climate change on wine alcohol content. To achieve this, different techniques have been used at the various stages of winemaking, among which the physical dealcoholization techniques, particularly membrane separation (nanofiltration, reverse osmosis, evaporative perstraction, and pervaporation) and thermal distillation (vacuum distillation and spinning cone column), have shown promising results and hence are being used for commercial production. However, the removal of alcohol by these techniques can cause changes in color and losses of desirable volatile aroma compounds, which can subsequently affect the sensory quality and acceptability of the wine by consumers. Aside from the removal of ethanol, other factors such as the ethanol concentration, the kind of alcohol removal technique, the retention properties of the wine non-volatile matrix, and the chemical-physical properties of the aroma compounds can influence changes in the wine sensory quality during dealcoholization. This review highlights and summarizes some of the techniques for wine dealcoholization and their impact on wine quality to help winemakers in choosing the best technique to limit adverse effects in dealcoholized wines and to help meet the needs and acceptance among different targeted consumers such as younger people, pregnant women, drivers, and teetotalers.
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Zhang X, Chen H, Liu Y, Yang B. Influence of chronic illness resources on self-management and the mediating effect of patient activation among patients with coronary heart disease. Nurs Open 2021; 8:3181-3189. [PMID: 34498405 PMCID: PMC8510723 DOI: 10.1002/nop2.1031] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 07/12/2021] [Accepted: 07/25/2021] [Indexed: 12/22/2022] Open
Abstract
Aim The aim of this study was to explore the relationship between chronic illness resources, patient activation and self‐management behaviour among middle‐aged and older patients with CHD. Design A cross‐sectional, descriptive correlational study was performed. Methods A convenience sample of 296 participants were recruited in Tianjin, China. Data were collected by using the Chronic Illness Resource Survey (CIRS), Patient Activation Measure (PAM) and Coronary Artery Disease Self‐Management Scale (CSMS). Descriptive statistics and Pearson's correlation analysis were used to data analysis. Linear regression analysis was performed to explore the mediating role of patient activation. Results The results showed that chronic illness resources and patient activation were significantly and positively correlated with self‐management behaviours (p < .01). Patient activation had a partial intermediary between chronic illness resources and self‐management behaviours, and the mediation effect was 0.230. Patient activation mediated the relationship between chronic illness resources and self‐management. In order to improving the self‐management behaviours, medical staff need to pay attention to the importance of chronic illness resources and patient activation.
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Affiliation(s)
- Xiaohong Zhang
- Tianjin University of Traditional Chinese Medicine, Tianjin, China.,Research Group Healthy Ageing, Allied Health Care and Nursing, Hanze University of Applied Sciences, Groningen, the Netherlands
| | - Hongbo Chen
- Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Yanhui Liu
- Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Bing Yang
- Chongqing Traditional Chinese Medicine hospital, Chongqing, China
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Concentration with Nanofiltration of Red Wine Cabernet Sauvignon Produced from Conventionally and Ecologically Grown Grapes: Effect on Phenolic Compounds and Antioxidant Activity. MEMBRANES 2021; 11:membranes11050322. [PMID: 33925172 PMCID: PMC8146389 DOI: 10.3390/membranes11050322] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 04/22/2021] [Accepted: 04/26/2021] [Indexed: 11/24/2022]
Abstract
The aim of this study was to investigate the influence of different operating conditions (four pressures: 2.5, 3.5, 4.5 and 5.5 MPa; two temperature regimes: with and without cooling) and wine type on phenolic compounds retention during the nanofiltration process of two Cabernet Sauvignon red wines (conventionally and ecologically produced). The nanofiltration process was conducted on Alfa Laval LabUnit M20 with plate module and six NF M20 membranes. In initial wines and obtained retentates, total polyphenol and flavonoid contents, monomeric anthocyanins content, antioxidant activity, individual phenolic compounds and CIELab colour parameters were determined. A loss of total phenolic compounds and decrease in antioxidant activity was observed in all retentates comparing to initial wine. However, retentate cooling and higher pressure increased their retention. Besides processing parameters, individual phenolic compound retention depended on several factors, such as the wine type, chemical properties of compounds and membrane type, and their combinations. Different chemical composition of initial conventional and ecological wine influenced the retention of individual compounds.
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Ivić I, Kopjar M, Obhođaš J, Vinković A, Pichler D, Mesić J, Pichler A. Concentration with Nanofiltration of Red Wine Cabernet Sauvignon Produced from Conventionally and Ecologically Grown Grapes: Effect on Volatile Compounds and Chemical Composition. MEMBRANES 2021; 11:membranes11050320. [PMID: 33925755 PMCID: PMC8145285 DOI: 10.3390/membranes11050320] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 04/16/2021] [Accepted: 04/25/2021] [Indexed: 11/16/2022]
Abstract
Ecological viticulture represent an upward trend in many countries. Unlike conventional viticulture, it avoids the use of chemical fertilizers and other additives, minimizing the impact of chemicals on the environment and human health. The aim of this study was to investigate the influence of nanofiltration (NF) process on volatiles and chemical composition of conventional and ecological Cabernet Sauvignon red wine. The NF process was conducted on laboratory Alfa Laval LabUnit M20 (De Danske Sukkerfabrikker, Nakskov, Denmark) equipped with six NF M20 membranes in a plate module, at two temperature regimes, with and without cooling and four pressures (2.5, 3.5, 4.5 and 5.5 MPa). Different processing parameters significantly influenced the permeate flux which increased when higher pressure was applied. In initial wines and obtained retentates, volatile compounds, chemical composition and elements concentration were determined. The results showed that the higher pressure and retentate cooling was more favourable for total volatiles retention than lower pressure and higher temperature. Individual compound retention depended on its chemical properties, applied processing parameters and wine composition. Nanofiltration process resulted in lower concentrations of ethanol, acetic acid (>50%), 4-ethylphenol and 4-ethylguaiacol (>90%). Different composition of initial feed (conventional and ecological wine) had an important impact on retention of elements.
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Affiliation(s)
- Ivana Ivić
- Faculty of Food Technology Osijek, Josip Juraj Strossmayer University, F. Kuhača 18, 31000 Osijek, Croatia; (I.I.); (M.K.)
| | - Mirela Kopjar
- Faculty of Food Technology Osijek, Josip Juraj Strossmayer University, F. Kuhača 18, 31000 Osijek, Croatia; (I.I.); (M.K.)
| | - Jasmina Obhođaš
- Ruđer Bošković Institute, Bijenička 54, 10000 Zagreb, Croatia; (J.O.); (A.V.)
| | - Andrija Vinković
- Ruđer Bošković Institute, Bijenička 54, 10000 Zagreb, Croatia; (J.O.); (A.V.)
| | | | - Josip Mesić
- Polytechnic in Požega, Vukovarska 17, 34000 Požega, Croatia;
| | - Anita Pichler
- Faculty of Food Technology Osijek, Josip Juraj Strossmayer University, F. Kuhača 18, 31000 Osijek, Croatia; (I.I.); (M.K.)
- Correspondence:
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12
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Ivić I, Kopjar M, Jukić V, Bošnjak M, Maglica M, Mesić J, Pichler A. Aroma Profile and Chemical Composition of Reverse Osmosis and Nanofiltration Concentrates of Red Wine Cabernet Sauvignon. Molecules 2021; 26:molecules26040874. [PMID: 33562235 PMCID: PMC7915410 DOI: 10.3390/molecules26040874] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 02/02/2021] [Accepted: 02/04/2021] [Indexed: 01/27/2023] Open
Abstract
Wine aroma represents one of the main properties that determines the consumer acceptance of the wine. It is different for each wine variety and depends on a large number of various chemical compounds. The aim of this study was to prepare red wine concentrates with enriched aroma compounds and chemical composition. For that purpose, Cabernet Sauvignon red wine variety was concentrated by reverse osmosis (RO) and nanofiltration (NF) processes under different operating conditions. Different pressures (2.5, 3.5, 4.5 and 5.5 MPa) and temperature regimes (with and without cooling) were applied on Alfa Laval LabUnit M20 equipped with six composite polyamide RO98pHt M20 or NF M20 membranes. Higher pressure increased the retention of sugars, SO2, total and volatile acids and ethanol, but the temperature increment had opposite effect. Both membranes were permeable for water, ethanol, acetic acid, 4-ethylphenol and 4-ethylguaiacol and their concentration decreased after wine filtration. RO98pHt membranes retained higher concentrations of total aroma compounds than NF membranes, but both processes, reverse osmosis and nanofiltration, resulted in retentates with different aroma profiles comparing to the initial wine. The retention of individual compounds depended on several factors (chemical structure, stability, polarity, applied processing parameters, etc.).
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Affiliation(s)
- Ivana Ivić
- Faculty of Food Technology Osijek, Josip Juraj Strossmayer University, F. Kuhača 18, 31000 Osijek, Croatia; (I.I.); (M.K.); (M.B.); (M.M.)
| | - Mirela Kopjar
- Faculty of Food Technology Osijek, Josip Juraj Strossmayer University, F. Kuhača 18, 31000 Osijek, Croatia; (I.I.); (M.K.); (M.B.); (M.M.)
| | - Vladimir Jukić
- Faculty of Agrobiotechnical Sciences Osijek, Josip Juraj Strossmayer University, V. Preloga 1, 31000 Osijek, Croatia;
| | - Martina Bošnjak
- Faculty of Food Technology Osijek, Josip Juraj Strossmayer University, F. Kuhača 18, 31000 Osijek, Croatia; (I.I.); (M.K.); (M.B.); (M.M.)
| | - Matea Maglica
- Faculty of Food Technology Osijek, Josip Juraj Strossmayer University, F. Kuhača 18, 31000 Osijek, Croatia; (I.I.); (M.K.); (M.B.); (M.M.)
| | - Josip Mesić
- Polytechnic in Požega, Vukovarska 17, 34000 Požega, Croatia;
| | - Anita Pichler
- Faculty of Food Technology Osijek, Josip Juraj Strossmayer University, F. Kuhača 18, 31000 Osijek, Croatia; (I.I.); (M.K.); (M.B.); (M.M.)
- Correspondence:
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Influence of Processing Parameters on Phenolic Compounds and Color of Cabernet Sauvignon Red Wine Concentrates Obtained by Reverse Osmosis and Nanofiltration. Processes (Basel) 2021. [DOI: 10.3390/pr9010089] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
In this study, Cabernet Sauvignon red wine was subjected to reverse osmosis and nanofiltration processes at four different pressures (25, 35, 45, and 55 bar) and two temperature regimes (with and without cooling). The aim was to obtain concentrates with a higher content of phenolic compounds and antioxidant activity and to determine the influence of two membrane types (Alfa Laval RO98pHt M20 for reverse osmosis and NF M20 for nanofiltration) and different operating conditions on phenolics retention. Total polyphenol, flavonoid, monomeric anthocyanin contents, and antioxidant activity were determined spectrophotometrically. Flavan-3-ols and phenolic acids were analyzed on a high-performance liquid chromatography system and sample colour was measured by chromometer. The results showed that the increase in applied pressure and decrease in retentate temperature were favorable for higher phenolics retention. Retention of individual compounds depended on their chemical structure, membrane properties, membrane fouling, and operating conditions. Both types of membranes proved to be suitable for Cabernet Sauvignon red wine concentration. In all retentates, phenolic compounds content was higher than in the initial wine, but no visible color change (ΔE* < 1) was observed. The highest concentrations of phenolic compounds were detected in retentates obtained at 45 and 55 bar, especially with cooling.
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