1
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Yang Y, Ye Z, Qin Y, Pathirana S, Araujo LD, Culley NJ, Kilmartin PA. Effects of post-fermentation addition of green tea extract for sulfur dioxide replacement on Sauvignon Blanc wine phenolic composition, antioxidant capacity, colour, and mouthfeel attributes. Food Chem 2024; 447:138976. [PMID: 38492300 DOI: 10.1016/j.foodchem.2024.138976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 02/25/2024] [Accepted: 03/06/2024] [Indexed: 03/18/2024]
Abstract
This study examines the feasibility of replacing SO2 in a New Zealand Sauvignon Blanc wine with a green tea extract. The treatments included the control with no preservatives (C), the addition of green tea extract at 0.1 and 0.2 g/L (T1 and T2), and an SO2 treatment at 50 mg/L (T3). Five monomeric phenolic compounds were detected in the green tea extract used for the experiment, and their concentrations ranged in the order (-)-epigallocatechin gallate > (-)-epigallocatechin > (-)-epicatechin > (-)-epicatechin gallate > gallic acid. At the studied addition rates, these green tea-derived phenolic compounds contributed to ∼70% of the antioxidant capacity (ABTS), ∼71% of the total phenolic index (TPI), and ∼ 84% of tannin concentration (MCPT) of the extract dissolved in a model wine solution. Among wine treatments, T1 and T2 significantly increased the wine's colour absorbance at 420 nm, MCPT, gallic acid and total monomeric phenolic content. TPI and ABTS were significantly higher in wines with preservatives (i.e., T2 > T1 ≅ T3 > C, p < 0.05). These variations were observed both two weeks after the treatments and again after five months of wine aging. Additionally, an accelerated browning test and a quantitative sensory analysis of wine colour and mouthfeel attributes were performed after 5 months of wine aging. When exposed to excessive oxygen and high temperature (50 °C), T1 and T2 exhibited ∼29% and 24% higher browning capacity than the control, whereas T3 reduced the wine's browning capacity by ∼20%. Nonetheless, the results from sensory analysis did not show significant variations between the treatments. Thus, using green tea extract to replace SO2 at wine bottling appears to be a viable option, without inducing a negative impact on the perceptible colour and mouthfeel attributes of Sauvignon Blanc wine.
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Affiliation(s)
- Yi Yang
- Wine Science Programme, Faculty of Science, The University of Auckland, Auckland 1010, New Zealand.
| | - Zhijing Ye
- School of Viticulture and Wine Science, The Eastern Institute of Technology, 501 Gloucester Street, Napier 4112, New Zealand
| | - Yunxuan Qin
- School of Viticulture and Wine Science, The Eastern Institute of Technology, 501 Gloucester Street, Napier 4112, New Zealand
| | - Sreeni Pathirana
- Food Science Programme, Faculty of Science, The University of Auckland, Auckland 1010, New Zealand
| | - Leandro Dias Araujo
- Department of Wine Food & Molecular Biosciences, Lincoln University, Lincoln 7647, New Zealand
| | - Neill J Culley
- Wine Science Programme, Faculty of Science, The University of Auckland, Auckland 1010, New Zealand
| | - Paul A Kilmartin
- Wine Science Programme, Faculty of Science, The University of Auckland, Auckland 1010, New Zealand.
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2
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Garcia L, Martet E, Suc L, Garcia F, Saucier C. Analysis of targeted phenolic ageing markers in Syrah red wines during bottle ageing: Influence of cork oxygen transfer rate. Food Chem 2024; 443:138491. [PMID: 38290297 DOI: 10.1016/j.foodchem.2024.138491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 01/10/2024] [Accepted: 01/15/2024] [Indexed: 02/01/2024]
Abstract
A Syrah red wine ageing experiment was set up during 24-months and the influence of four micro-agglomerated corks were investigated. Specific phenolic ageing markers were selected and hemi-synthesized: vitisin B, malvidin-ethyl-catechin, and epicatechin-sulfonate. A targeted quantification method of these markers was then developed and validated by using ultra-high performance liquid chromatography - triple quadrupole mass spectrometry (UHPLC-QqQ-MS) operating in MRM (Multiple Reaction Monitoring). Results showed a significant decline in native grape polyphenol levels (anthocyanins, flavanols) as ageing progresses while pyranoanthocyanins, ethyl-linked pigments, and flavanol-sulfonates content increased. The cork oxygen transfer rate emerged as a pivotal factor and had significant effects on polyphenolic concentration evolution but had no significant impact on flavanol-sulfonate formation. These results provide valuable insights into the chemical evolution ongoing during wine ageing, accentuating the pivotal role of cork stopper selection in preserving wine quality over time.
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Affiliation(s)
- Luca Garcia
- SPO, Univ Montpellier, INRAE, Institut Agro, Montpellier, France
| | - Elodie Martet
- SPO, Univ Montpellier, INRAE, Institut Agro, Montpellier, France
| | - Lucas Suc
- SPO, Univ Montpellier, INRAE, Institut Agro, Montpellier, France
| | - François Garcia
- SPO, Univ Montpellier, INRAE, Institut Agro, Montpellier, France
| | - Cédric Saucier
- SPO, Univ Montpellier, INRAE, Institut Agro, Montpellier, France.
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3
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Campbell JR, Scholasch T, Waterhouse AL, Kennedy JA. Napa Valley Cabernet Sauvignon Proanthocyanidin Changes During Fruit Ripening: A Multi-Appellation Survey. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024. [PMID: 38833680 DOI: 10.1021/acs.jafc.4c02146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2024]
Abstract
In 2015, an experiment was designed to investigate the distribution and variance of in winegrape flavonoids across the ripening phase in the Napa Valley. This Cabernet Sauvignon experiment was intended to evaluate the polyphenol differences across Napa Valley in order to understand parameters controlling "proanthocyanidin activity." This method has shown promise in understanding proanthocyanidin (PA) astringency based on size distribution, pigmentation, conformation, and composition. Results from whole berry partial extractions showed that seed PA material was driving PA activity early in the ripening phase, while the formation of the pigmented polymer led to a decrease later in the growing season. Multivariate analysis showed that the main drivers of changes across the ripening phase were the molecular masses of PAs and the amount of pigmentation. Given the high amount of variability seen in the experiment between sites in such a small geographical area, the results suggest that manipulation of PA activity may be possible in the vineyard, perhaps explaining variations in wine mouthfeel attributes between locations. These results can be used to develop furthermore controlled experiments targeting the variables responsible for PA activity changes.
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Affiliation(s)
- James R Campbell
- Department of Viticulture and Enology, University of California Davis, One Shields Ave., Davis, California 95616, United States
- California State University, 2360 East Barstow Avenue MS VR89, Fresno, California 93740-8003, United States
| | | | - Andrew L Waterhouse
- Department of Viticulture and Enology, University of California Davis, One Shields Ave., Davis, California 95616, United States
| | - James A Kennedy
- California State University, 2360 East Barstow Avenue MS VR89, Fresno, California 93740-8003, United States
- Functional Phenolics LLC, Corvallis, Oregon 97330, United States
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4
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Ferrero-Del-Teso S, Arapitsas P, Jeffery DW, Ferreira C, Mattivi F, Fernández-Zurbano P, Sáenz-Navajas MP. Exploring UPLC-QTOF-MS-based targeted and untargeted approaches for understanding wine mouthfeel: A sensometabolomic approach. Food Chem 2024; 437:137726. [PMID: 37907002 DOI: 10.1016/j.foodchem.2023.137726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 09/13/2023] [Accepted: 10/08/2023] [Indexed: 11/02/2023]
Abstract
This study aimed to establish relationships between wine composition and in-mouth sensory properties using a sensometabolomic approach. Forty-two red wines were sensorially assessed and chemically characterised using UPLC-QTOF-MS for targeted and untargeted analyses. Suitable partial least squares regression models were obtained for "dry", "sour", "oily", "prickly", and "unctuous". "Dry" was positively contributed by flavan-3-ols, anthocyanin derivatives (AntD), valine, gallic acid and its ethyl ester, and peptides, and negatively by sulfonated flavan-3-ols, anthocyanin-ethyl-flavan-3-ols, tartaric acid, flavonols (FOL), hydroxycinnamic acids (HA), protocatechuic ethyl ester, and proline. The "sour" model included molecules involved in "dry" and "bitter", ostensibly as a result of cognitive interactions. Derivatives of FOLs, epicatechin gallate, and N-acetyl-glucosamine phosphate contributed positively to "oily", as did vanillic acid, HAs, pyranoanthocyanins, and malvidin-flavan-3-ol derivatives for "prickly", and sugars, glutathione disulfide, AntD, FOL, and one HA for "unctuous". The presented approach offers an interesting tool for deciphering the sensory-active compounds involved in mouthfeel perception.
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Affiliation(s)
- Sara Ferrero-Del-Teso
- Instituto de Ciencias de la Vid y del Vino (Universidad de La Rioja-Consejo Superior de Investigaciones Científicas-Gobierno de La Rioja), Departamento de Enología, Logroño, La Rioja, Spain
| | - Panagiotis Arapitsas
- Unit of Metabolomics, Research and Innovation Centre, Fondazione Edmund Mach, via E. Mach 1, 38010 San Michele all'Adige, Italy; Department of Wine, Vine and Beverage Sciences, School of Food Science, University of West Attica, Ag. Spyridonos 28, Egaleo, 12243 Athens, Greece
| | - David W Jeffery
- School of Agriculture, Food and Wine, and Waite Research Institute, The University of Adelaide, PMB 1, Glen Osmond, South Australia 5064, Australia
| | - Chelo Ferreira
- Laboratorio de Análisis del Aroma y Enología (LAAE), Instituto Universitario de Matemáticas y Aplicaciones (IUMA-UNIZAR), Universidad de Zaragoza, c/ Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Fulvio Mattivi
- Unit of Metabolomics, Research and Innovation Centre, Fondazione Edmund Mach, via E. Mach 1, 38010 San Michele all'Adige, Italy
| | - Purificación Fernández-Zurbano
- Instituto de Ciencias de la Vid y del Vino (Universidad de La Rioja-Consejo Superior de Investigaciones Científicas-Gobierno de La Rioja), Departamento de Enología, Logroño, La Rioja, Spain
| | - María-Pilar Sáenz-Navajas
- Instituto de Ciencias de la Vid y del Vino (Universidad de La Rioja-Consejo Superior de Investigaciones Científicas-Gobierno de La Rioja), Departamento de Enología, Logroño, La Rioja, Spain.
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5
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Tienaho J, Fidelis M, Brännström H, Hellström J, Rudolfsson M, Kumar Das A, Liimatainen J, Kumar A, Kurkilahti M, Kilpeläinen P. Valorizing Assorted Logging Residues: Response Surface Methodology in the Extraction Optimization of a Green Norway Spruce Needle-Rich Fraction To Obtain Valuable Bioactive Compounds. ACS SUSTAINABLE RESOURCE MANAGEMENT 2024; 1:237-249. [PMID: 38414817 PMCID: PMC10895920 DOI: 10.1021/acssusresmgt.3c00050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 01/17/2024] [Accepted: 01/17/2024] [Indexed: 02/29/2024]
Abstract
During stemwood harvesting, substantial volumes of logging residues are produced as a side stream. Nevertheless, industrially feasible processing methods supporting their use for other than energy generation purposes are scarce. Thus, the present study focuses on biorefinery processing, employing response surface methodology to optimize the pressurized extraction of industrially assorted needle-rich spruce logging residues with four solvents. Eighteen experimental points, including eight center point replicates, were used to optimize the extraction temperature (40-135 °C) and time (10-70 min). The extraction optimization for water, water with Na2CO3 + NaHSO3 addition, and aqueous ethanol was performed using yield, total dissolved solids (TDS), antioxidant activity (FRAP, ORAC), antibacterial properties (E. coli, S. aureus), total phenolic content (TPC), condensed tannin content, and degree of polymerization. For limonene, evaluated responses were yield, TDS, antioxidant activity (CUPRAC, DPPH), and TPC. Desirability surfaces were created using the responses showing a coefficient of determination (R2) > 0.7, statistical significance (p ≤ 0.05), precision > 4, and statistically insignificant lack-of-fit (p > 0.1). The optimal extraction conditions were 125 °C and 68 min for aqueous ethanol, 120 °C and 10 min for water, 111 °C and 49 min for water with Na2CO3 + NaHSO3 addition, and 134 °C and 41 min for limonene. The outcomes contribute insights to industrial logging residue utilization for value-added purposes.
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Affiliation(s)
- Jenni Tienaho
- Production Systems, Natural Resources Institute Finland (Luke), Latokartanonkaari 9, FI-00790 Helsinki, Finland
| | - Marina Fidelis
- Production Systems, Natural Resources Institute Finland (Luke), Latokartanonkaari 9, FI-00790 Helsinki, Finland
- Food Sciences Unit, Department of Life Technologies, University of Turku, FI-20014 Turku, Finland
| | - Hanna Brännström
- Production Systems, Natural Resources Institute Finland (Luke), Teknologiakatu 7, FI-67100 Kokkola, Finland
| | - Jarkko Hellström
- Production Systems, Natural Resources Institute Finland (Luke), Myllytie 1, FI-31600 Jokioinen, Finland
| | - Magnus Rudolfsson
- Unit of Biomass Technology and Chemistry, Swedish University of Agricultural Sciences, SE-901 83 Umeå, Sweden
| | - Atanu Kumar Das
- Unit of Biomass Technology and Chemistry, Swedish University of Agricultural Sciences, SE-901 83 Umeå, Sweden
| | - Jaana Liimatainen
- Production Systems, Natural Resources Institute Finland (Luke), Latokartanonkaari 9, FI-00790 Helsinki, Finland
| | - Anuj Kumar
- Production Systems, Natural Resources Institute Finland (Luke), Latokartanonkaari 9, FI-00790 Helsinki, Finland
| | - Mika Kurkilahti
- Natural Resources, Natural Resources Institute Finland (Luke), Itäinen Pitkäkatu 4 A, FI-20520 Turku, Finland
| | - Petri Kilpeläinen
- Production Systems, Natural Resources Institute Finland (Luke), Latokartanonkaari 9, FI-00790 Helsinki, Finland
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6
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Tachtalidou S, Arapitsas P, Penouilh MJ, Denat F, Schmitt-Kopplin P, Gougeon RD, Nikolantonaki M. Chemical Stability of Thiol and Flavanol Sulfonation Products during Wine Aging Conditions. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:1885-1893. [PMID: 36724455 DOI: 10.1021/acs.jafc.2c06690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Bisulfite (HSO3-) is the predominant form of sulfur dioxide, present as free and bound to wine relevant electrophiles under wine acidic pH. While sulfonation reactions of flavanols and thiols have been recently reported as key for wine preservation against oxidation, the transient mechanisms and physicochemical parameters responsible for that remain unknown. In the present study, sulfonation reaction kinetics of thiols and flavanols were monitored under simulated wine aging conditions. The reaction products were then characterized by liquid chromatography-tandem mass spectrometry (LC-MS/MS) analysis, and their chemical stability during time was determined by 1H NMR spectroscopy. Thiol and flavanol sulfonation reaction yields were both promoted by the presence of iron and oxygen, while their chemical stability was confirmed under the same conditions. The sulfonation derivatives of epicatechin and cysteine were synthesized and quantified in young and aged wines. Higher concentrations were reported for both metabolites in older wines, indicating their participation on the strongly bound sulfur dioxide fraction. These findings offer new prospects for more precise use of sulfur dioxide in winemaking.
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Affiliation(s)
- Sofia Tachtalidou
- UMR PAM Université de Bourgogne Franche-Comté/Institut Agro Dijon, Institut Universitaire de la Vigne et du Vin, Jules Guyot, 21000Dijon, France
| | - Panagiotis Arapitsas
- Research and Innovation Centre, Fondazione Edmund Mach, 38010San Michele all'Adige, Italy
- Department of Wine, Vine and Beverage Sciences, School of Food Science, University of West Attica, Egaleo, 12243Athens, Greece
| | - Marie-Jose Penouilh
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB), UMR 6302, CNRS, Université Bourgogne Franche-Comté, 21078Dijon, France
| | - Franck Denat
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB), UMR 6302, CNRS, Université Bourgogne Franche-Comté, 21078Dijon, France
| | | | - Régis D Gougeon
- UMR PAM Université de Bourgogne Franche-Comté/Institut Agro Dijon, Institut Universitaire de la Vigne et du Vin, Jules Guyot, 21000Dijon, France
| | - Maria Nikolantonaki
- UMR PAM Université de Bourgogne Franche-Comté/Institut Agro Dijon, Institut Universitaire de la Vigne et du Vin, Jules Guyot, 21000Dijon, France
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7
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Li Z, Huang J, Wang L, Li D, Chen Y, Xu Y, Li L, Xiao H, Luo Z. Novel insight into the role of sulfur dioxide in fruits and vegetables: Chemical interactions, biological activity, metabolism, applications, and safety. Crit Rev Food Sci Nutr 2023:1-25. [PMID: 37128783 DOI: 10.1080/10408398.2023.2203737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Sulfur dioxide (SO2) are a category of chemical compounds widely used as additives in food industry. So far, the use of SO2 in fruit and vegetable industry has been indispensable although its safety concerns have been controversial. This article comprehensively reviews the chemical interactions of SO2 with the components of fruit and vegetable products, elaborates its mechanism of antimicrobial, anti-browning, and antioxidation, discusses its roles in regulation of sulfur metabolism, reactive oxygen species (ROS)/redox, resistance induction, and quality maintenance in fruits and vegetables, summarizes the application technology of SO2 and its safety in human (absorption, metabolism, toxicity, regulation), and emphasizes the intrinsic metabolism of SO2 and its consequences for the postharvest physiology and safety of fresh fruits and vegetables. In order to fully understand the benefits and risks of SO2, more research is needed to evaluate the molecular mechanisms of SO2 metabolism in the cells and tissues of fruits and vegetables, and to uncover the interaction mechanisms between SO2 and the components of fruits and vegetables as well as the efficacy and safety of bound SO2. This review has important guiding significance for adjusting an applicable definition of maximum residue limit of SO2 in food.
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Affiliation(s)
- Zhenbiao Li
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
| | - Jing Huang
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
| | - Lei Wang
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
| | - Dong Li
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
| | - Yanpei Chen
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
| | - Yanqun Xu
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
- Ningbo Innovation Center, Zhejiang University, Ningbo, China
| | - Li Li
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
| | - Hang Xiao
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
- Department of Food Science, University of Massachusetts, Amherst, Massachusetts, USA
| | - Zisheng Luo
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
- Ningbo Innovation Center, Zhejiang University, Ningbo, China
- Key Laboratory of Agro-Products Postharvest Handling of Ministry of Agriculture and Rural Affairs, Zhejiang Key Laboratory for Agri-Food Processing, Hangzhou, China
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8
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Pons A, Lavigne V, Suhas E, Thibon C, Redon P, Loisel C, Darriet P. Impact of the Closure Oxygen Transfer Rate on Volatile Compound Composition and Oxidation Aroma Intensity of Merlot and Cabernet Sauvignon Blend: A 10 Year Study. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:16358-16368. [PMID: 36520545 DOI: 10.1021/acs.jafc.2c07475] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
This study evaluated the impact of closure type on unoaked 100 %-Merlot, oak-aged 70%-Merlot/30%-Cabernet Sauvignon, and 30%-Merlot/70%-Cabernet Sauvignon during a 10 year period. Closures were microagglomerate corks, screw caps, and synthetics with the known oxygen transfer rate (OTR), ranging from 0.1 to 4.6 mg/y, including natural corks. Oxidation intensity perception, dissolved oxygen, sulfite, and 3-methyl-2,4-nonanedione (MND) were monitored on a regular basis. After 10 years of aging, additional aroma impact markers were evaluated (3-sulfanylhexan-1-ol, H2S, DMS, methional, and phenylacetaldehyde). Low OTR levels (≤0.3 mg/y) delayed the oxidation of red wines in this long-term experiment. In addition, our results led us to hypothesize that the MND concentration in young wines might be linked with their ability to produce it during bottle aging that is with their aging potential. Finally, we found that the kinetic accumulation of MND in wines was first strongly impacted by its intrinsic composition and thereafter by the OTRT0 of the stopper.
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Affiliation(s)
- Alexandre Pons
- Tonnellerie Seguin Moreau, 16103 Cognac France, France
- Univ. Bordeaux, Bordeaux INP, INRAE, OENO, UMR 1366, ISVV, F-33140 Villenave d'Ornon, France
| | - Valérie Lavigne
- Tonnellerie Seguin Moreau, 16103 Cognac France, France
- Univ. Bordeaux, Bordeaux INP, INRAE, OENO, UMR 1366, ISVV, F-33140 Villenave d'Ornon, France
| | - Emilie Suhas
- Univ. Bordeaux, Bordeaux INP, INRAE, OENO, UMR 1366, ISVV, F-33140 Villenave d'Ornon, France
| | - Cécile Thibon
- Univ. Bordeaux, Bordeaux INP, INRAE, OENO, UMR 1366, ISVV, F-33140 Villenave d'Ornon, France
| | - Pascaline Redon
- Univ. Bordeaux, Bordeaux INP, INRAE, OENO, UMR 1366, ISVV, F-33140 Villenave d'Ornon, France
| | | | - Philippe Darriet
- Univ. Bordeaux, Bordeaux INP, INRAE, OENO, UMR 1366, ISVV, F-33140 Villenave d'Ornon, France
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9
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Li X, Li W, Chen F, Xiao J, Liao X, Hu X, Ji J, Ma L. Guideline for measurement of condensed tannin. FOOD FRONTIERS 2022. [DOI: 10.1002/fft2.174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Affiliation(s)
- Xiaohui Li
- College of Food Science and Nutritional Engineering, National Engineering Research Centre for Fruits and Vegetables Processing, Key Laboratory of Fruits and Vegetables Processing, Ministry of Agriculture, Engineering Research Centre for Fruits and Vegetables Processing, Ministry of Education China Agricultural University Beijing China
- Xinghua Industrial Research Centre for Food Science and Human Health China Agricultural University Xinghua China
| | - Wei Li
- College of Food Science and Nutritional Engineering, National Engineering Research Centre for Fruits and Vegetables Processing, Key Laboratory of Fruits and Vegetables Processing, Ministry of Agriculture, Engineering Research Centre for Fruits and Vegetables Processing, Ministry of Education China Agricultural University Beijing China
| | - Fang Chen
- College of Food Science and Nutritional Engineering, National Engineering Research Centre for Fruits and Vegetables Processing, Key Laboratory of Fruits and Vegetables Processing, Ministry of Agriculture, Engineering Research Centre for Fruits and Vegetables Processing, Ministry of Education China Agricultural University Beijing China
| | - Jianbo Xiao
- Nutrition and Bromatology Group, Faculty of Food Science and Technology, Department of Analytical Chemistry and Food Science University of Vigo—Ourense Campus Ourense Spain
| | - Xiaojun Liao
- College of Food Science and Nutritional Engineering, National Engineering Research Centre for Fruits and Vegetables Processing, Key Laboratory of Fruits and Vegetables Processing, Ministry of Agriculture, Engineering Research Centre for Fruits and Vegetables Processing, Ministry of Education China Agricultural University Beijing China
| | - XiaoSong Hu
- College of Food Science and Nutritional Engineering, National Engineering Research Centre for Fruits and Vegetables Processing, Key Laboratory of Fruits and Vegetables Processing, Ministry of Agriculture, Engineering Research Centre for Fruits and Vegetables Processing, Ministry of Education China Agricultural University Beijing China
| | - Junfu Ji
- College of Food Science and Nutritional Engineering, National Engineering Research Centre for Fruits and Vegetables Processing, Key Laboratory of Fruits and Vegetables Processing, Ministry of Agriculture, Engineering Research Centre for Fruits and Vegetables Processing, Ministry of Education China Agricultural University Beijing China
- Xinghua Industrial Research Centre for Food Science and Human Health China Agricultural University Xinghua China
| | - Lingjun Ma
- College of Food Science and Nutritional Engineering, National Engineering Research Centre for Fruits and Vegetables Processing, Key Laboratory of Fruits and Vegetables Processing, Ministry of Agriculture, Engineering Research Centre for Fruits and Vegetables Processing, Ministry of Education China Agricultural University Beijing China
- Xinghua Industrial Research Centre for Food Science and Human Health China Agricultural University Xinghua China
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10
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A novel method combining stable isotopic labeling and high-resolution mass spectrometry to trace the quinone reaction products in wines. Food Chem 2022; 383:132448. [DOI: 10.1016/j.foodchem.2022.132448] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Revised: 01/29/2022] [Accepted: 02/10/2022] [Indexed: 11/23/2022]
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11
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Redox Profiling of Selected Apulian Red Wines in a Single Minute. Antioxidants (Basel) 2022; 11:antiox11050859. [PMID: 35624722 PMCID: PMC9137507 DOI: 10.3390/antiox11050859] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 04/22/2022] [Accepted: 04/26/2022] [Indexed: 02/04/2023] Open
Abstract
Wine is a complex bioproduct whose chemical composition is highly variable across production regions. In order to shed light on affordable ways to promote the characterization of wines and explore the physicochemical basis of their antioxidant capacity, this work reported on the quick and easy redox profiling of selected red wines from Apulia, Italy. Therefore, an affordable and quickly performed semiempirical quantum chemistry approach, i.e., the extended Hückel method, was used to compute the bandgaps of the main phytochemical markers attributed to red wines. The findings of these calculations were then compared to an electroanalytical investigation in the form of cyclic and square-wave voltammetry, and the electric current of the redox profiles was used as the input dataset for principal component analysis. Results showcased that the semiempirical quantum chemistry calculations allowed the correlation of the bandgaps to the observed faradaic signals upon voltammetry; thereby, also providing insights on their antioxidant appeal by highlighting the feasibility of charge-transfer processes at low electric potentials. Furthermore, the principal component analysis showed that the electric current dataset gathered in a time span of 55 s allowed the appropriate separation of the samples, which hints at the possible use of quick voltammetric assays as fingerprinting tools.
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12
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Sáez V, Schober D, González Á, Arapitsas P. LC-MS-Based Metabolomics Discriminates Premium from Standard Chilean cv. Cabernet Sauvignon Wines from Different Valleys. Metabolites 2021; 11:metabo11120829. [PMID: 34940587 PMCID: PMC8707972 DOI: 10.3390/metabo11120829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 11/26/2021] [Accepted: 11/26/2021] [Indexed: 11/24/2022] Open
Abstract
Cabernet Sauvignon grapes in Chile, mainly grown between the 30° S and 36° S, account for more than 30% of Chilean wine production, and yield wines with different characteristics which influence their quality. The aim of this study was to apply a liquid chromatography – mass spectrometry (LC–MS)-based metabolomic protocol to investigate the quality differentiation in a sample set of monovarietal wines from eight valleys covering 679 km of the north-south extension. All samples were produced using a standardized red winemaking process and classified according to a company categorization in two major groups: premium and standard, and each group in two subcategories. The results pointed out that N-containing metabolites (mainly small peptides) are promising biomarkers for quality differentiation. Moreover, the premium wines were characterized by higher amounts of anthocyanins and other glycosylated and acetylated flavonoids, as well as phenolic acids; standard quality wines, on the other hand, presented stilbenoids and sulfonated catabolites of tryptophan and flavanols.
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Affiliation(s)
- Vania Sáez
- Department of Food Quality and Nutrition, Research and Innovation Centre, Fondazione Edmund Mach, Via Edmund Mach 1, 38010 San Michele All’Adige, Italy;
| | - Doreen Schober
- Center for Research and Innovation, Viña Concha y Toro, Ruta K-650 Km 10, Pencahue 3550000, Chile; (D.S.); (Á.G.)
| | - Álvaro González
- Center for Research and Innovation, Viña Concha y Toro, Ruta K-650 Km 10, Pencahue 3550000, Chile; (D.S.); (Á.G.)
| | - Panagiotis Arapitsas
- Department of Food Quality and Nutrition, Research and Innovation Centre, Fondazione Edmund Mach, Via Edmund Mach 1, 38010 San Michele All’Adige, Italy;
- Department of Wine, Vine and Beverage Sciences, School of Food Science, University of West Attica, Ag. Spyridonos str, Egaleo, 12243 Athens, Greece
- Correspondence: or
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Abstract
Catechin exhibits numerous physiological characteristics. In this study, we determined the photosensitivity of catechin to various lights under alkaline conditions, and the mechanisms by which catechin generates free radical species and polymerizes via a photoreaction. In addition to this, the application of catechin photolysis was investigated. A solution of catechin is transparent, but turns yellowish under blue light illumination (BLI) in neutral or weak alkaline solutions. When catechin is subjected to BLI, a dimeric catechin (proanthocyanidin) and a superoxide anion radical (O2•−) are generated in a photolytic reaction. When ascorbic acid or gallic acid is added to catechin and the mixture is subjected to BLI at alkaline pH, fewer catechin dimers and less O2•− are produced, because both acids inhibit the photosensitive oxidation of catechin. When AlCl3 is added to catechin and the mixture is subjected to BLI at pH 8, a photolytic reaction is suppressed by AlCl3, and AlCl3 acts as a catalyst for the disconnection of proanthocyanidin during photolysis. Under alkaline conditions, catechin generates O2•− via photosensitive oxidation, which suppresses the growth of Acinetobacter baumannii (A. baumannii) by at least 4 logs, and deactivates its multi-drug-resistant strain. This study shows that catechin photolysis is a process of oxidation, and that it can be safely applied as a tool for environmental applications.
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Ji J, Henschen CW, Nguyen TH, Ma L, Waterhouse AL. Yeasts Induce Acetaldehyde Production in Wine Micro-oxygenation Treatments. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:15216-15227. [PMID: 33289562 DOI: 10.1021/acs.jafc.0c06118] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Micro-oxygenation (Mox) is a common technique used to stabilize color and reduce harsh astringency in red wines. Here, we investigate the role of residual sugars, phenolics, SO2, and yeast on the oxidation of wine in three studies. In a Mox experiment, populations of yeasts emerged after the loss of SO2, and this was associated with sharp increases in oxygen consumption and acetaldehyde production. No acetaldehyde production was observed without the presence of yeast. In an oxygen saturation experiment, unfiltered wines, in particular those with residual sugar >3 g/L, consumed oxygen more quickly and produced more acetaldehyde than filtered wines. In a final experiment, the reincorporation of oxygen and glucose immediately after the completion of fermentation of an otherwise dry synthetic wine resulted in significant acetaldehyde production. These experiments highlighted the importance of yeast metabolism in determining a wine's response to Mox and suggested that the role of chemical oxidation to produce acetaldehyde during Mox may not be very important. It appears that control of microbial populations and residual sugar levels may be key to managing Mox treatments in winemaking, and production scale experiments should be conducted.
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Affiliation(s)
- Junfu Ji
- College of Food Science and Nutritional Engineering, National Engineering Research Centre for Fruits and Vegetables Processing, Key Laboratory of Fruits and Vegetables Processing, Ministry of Agriculture, Engineering Research Centre for Fruits and Vegetables Processing, Ministry of Education, China Agricultural University, Beijing 10083, China
| | - Charles W Henschen
- Department of Viticulture and Enology, University of California, Davis, Davis, California 95616, United States
| | - Thi H Nguyen
- Department of Viticulture and Enology, University of California, Davis, Davis, California 95616, United States
| | - Lingjun Ma
- College of Food Science and Nutritional Engineering, National Engineering Research Centre for Fruits and Vegetables Processing, Key Laboratory of Fruits and Vegetables Processing, Ministry of Agriculture, Engineering Research Centre for Fruits and Vegetables Processing, Ministry of Education, China Agricultural University, Beijing 10083, China
| | - Andrew L Waterhouse
- Department of Viticulture and Enology, University of California, Davis, Davis, California 95616, United States
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15
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Catechin Photolysis Suppression by Aluminum Chloride under Alkaline Conditions and Assessment with Liquid Chromatography-Mass Spectrometry. Molecules 2020; 25:molecules25245985. [PMID: 33348758 PMCID: PMC7766431 DOI: 10.3390/molecules25245985] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 12/08/2020] [Accepted: 12/14/2020] [Indexed: 11/17/2022] Open
Abstract
Tea is rich in catechins and aluminum. In this study, the process of catechin photolysis was applied as a model for examining the effects of aluminum chloride (AlCl3) on the structural changes of catechin and the alteration of aluminum complexes under blue light irradiation (BLI) at pH 8 using liquid chromatography and mass spectrometry techniques. Additionally, the effects of anions on catechin upon the addition of AlCl3 and treatment with BLI were also studied. In this study, when 1 mM catechin was treated with BLI, a superoxide anion radical (O2•-) was generated in an air-saturated aqueous solution, in addition to forming a dimeric catechin (proanthocyanidin) via a photon-induced redox reaction. The relative percentage of catechin was found to be 59.0 and 95.7 for catechin treated with BLI and catechin upon the addition of 1 mM AlCl3 treated with BLI, respectively. It suggested that catechin treated with BLI could be suppressed by AlCl3, while AlCl3 did not form a complex with catechin in the photolytic system. However, under the same conditions, it was also found that the addition of AlCl3 inhibited the photolytic formation of O2•-, and reduced the generation of proanthocyanidin, suggesting that the disconnection of proanthocyanidin was achieved by AlCl3 acting as a catalyst under treatment with BLI. The influence of 1 mM fluoride (F-) and 1 mM oxalate (C2O42-) ions on the photolysis of 1 mM catechin upon the addition of 1 mM AlCl3 and treatment with BLI was found to be insignificant, implying that, during the photolysis of catechin, the Al species were either neutral or negatively charged and the aluminum species did not form a complex with anions in the photolytic system. Therefore, aluminum, which is an amphoteric species, has an inherent potential to stabilize the photolysis of catechin in an alkaline conditions, while suppressing the O2•- and proanthocyanidin generation via aluminum ion catalysis in the catechin/Al system under treatment with BLI.
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16
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Ugliano M, Slaghenaufi D, Picariello L, Olivieri G. Oxygen and SO 2 Consumption of Different Enological Tannins in Relationship to Their Chemical and Electrochemical Characteristics. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:13418-13425. [PMID: 32153190 PMCID: PMC7997567 DOI: 10.1021/acs.jafc.0c00044] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 03/09/2020] [Accepted: 03/10/2020] [Indexed: 05/20/2023]
Abstract
The oxidative behavior of five commercial enological tannins of different sources (tea, grape marc, grape seed, untoasted oak, and toasted oak) was investigated in model wine solutions in the presence or absence of SO2. Solutions of the tannins were also analyzed for total phenolics, methyl cellulose precipitable tannins, high-performance liquid chromatography, and linear sweep voltammetry. Tea and oak-derived tannin solutions were characterized by the highest oxygen consumption rates, with oak-derived tannins exhibiting the highest oxygen consumption rates per milligram of phenolic material present. Linear sweep and derivative voltammetry parameters were well-correlated with oxygen consumption rates, whereas total phenolics or total tannins were not. All tannins were associated with consumption of SO2 upon reaction with oxygen, with the lowest rate of SO2 lost per milligram of O2 reacted being observed for oak tannins.
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Affiliation(s)
- Maurizio Ugliano
- Department of Biotechnology, University of Verona, Villa Lebrecht, Via della Pieve 70, 37029 San Pietro in Cariano, Italy
| | - Davide Slaghenaufi
- Department of Biotechnology, University of Verona, Villa Lebrecht, Via della Pieve 70, 37029 San Pietro in Cariano, Italy
| | - Luigi Picariello
- Department of Biotechnology, University of Verona, Villa Lebrecht, Via della Pieve 70, 37029 San Pietro in Cariano, Italy
| | - Gianmarco Olivieri
- Department of Biotechnology, University of Verona, Villa Lebrecht, Via della Pieve 70, 37029 San Pietro in Cariano, Italy
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Jongberg S, Andersen ML, Lund MN. Characterisation of protein-polyphenol interactions in beer during forced aging. JOURNAL OF THE INSTITUTE OF BREWING 2020. [DOI: 10.1002/jib.623] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Sisse Jongberg
- Department of Food Science, Faculty of Science; University of Copenhagen; Rolighedsvej 26 Frederiksberg 1958 Denmark
| | - Mogens L. Andersen
- Department of Food Science, Faculty of Science; University of Copenhagen; Rolighedsvej 26 Frederiksberg 1958 Denmark
| | - Marianne N. Lund
- Department of Food Science, Faculty of Science; University of Copenhagen; Rolighedsvej 26 Frederiksberg 1958 Denmark
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences; University of Copenhagen; Blegdamsvej 3 Copenhagen N 2200 Denmark
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18
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Bonaldo F, Guella G, Mattivi F, Catorci D, Arapitsas P. Kinetic investigations of sulfite addition to flavanols. Sci Rep 2020; 10:12792. [PMID: 32732961 PMCID: PMC7393157 DOI: 10.1038/s41598-020-69483-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Accepted: 06/30/2020] [Indexed: 12/15/2022] Open
Abstract
Flavanols are an important class of natural products occurring in almost all plants, fruits and vegetables; they have a great influence on wine ageing potential, astringency, colour stability and biological activities. In wine, flavanols react with sulfur dioxide ([Formula: see text]), the most widely used preservative in oenology, leading to sulfonated products. Here we report a kinetic investigation, through LC-MS quantitative measurements carried out at different pH (3 and 4) and temperature values (23, 30, 40, 50 and [Formula: see text]), of the reaction products obtained by [Formula: see text] addition to both monomeric (epicatechin and catechin) and dimeric flavanols (procyanidin B2 and procyanidin B3). The results proved that: (a) the major sulfonation route that leads quickly and in good yields to monomeric 4[Formula: see text]-sulfonated derivatives passes through the acid-catalysed depolymerisation of proanthocyanidins; (b) monomeric flavanols lead to the same 4[Formula: see text]-sulfonated products, although in a considerably slower manner, and also to other sulfonated regioisomers; (c) the kinetic data in our hands, in particular the temperature dependence of the observed rates, suggest the involvement of two completely different reaction mechanisms for the [Formula: see text] addition to dimeric and monomeric flavanol substrates; (d) direct sulfonation of epicatechin is slightly faster than that of catechin.
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Affiliation(s)
- Federico Bonaldo
- Department of Food Quality and Nutrition, Research and Innovation Centre, Fondazione Edmund Mach (FEM), San Michele all'Adige, Italy
- Bioorganic Chemistry Laboratory, Department of Physics, University of Trento, Trento, Italy
| | - Graziano Guella
- Bioorganic Chemistry Laboratory, Department of Physics, University of Trento, Trento, Italy.
| | - Fulvio Mattivi
- Department of Food Quality and Nutrition, Research and Innovation Centre, Fondazione Edmund Mach (FEM), San Michele all'Adige, Italy
- Bioorganic Chemistry Laboratory, Department of Physics, University of Trento, Trento, Italy
| | - Daniele Catorci
- Bioorganic Chemistry Laboratory, Department of Physics, University of Trento, Trento, Italy
| | - Panagiotis Arapitsas
- Department of Food Quality and Nutrition, Research and Innovation Centre, Fondazione Edmund Mach (FEM), San Michele all'Adige, Italy.
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19
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Deshaies S, Cazals G, Enjalbal C, Constantin T, Garcia F, Mouls L, Saucier C. Red Wine Oxidation: Accelerated Ageing Tests, Possible Reaction Mechanisms and Application to Syrah Red Wines. Antioxidants (Basel) 2020; 9:E663. [PMID: 32722307 PMCID: PMC7464692 DOI: 10.3390/antiox9080663] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 07/20/2020] [Accepted: 07/21/2020] [Indexed: 11/16/2022] Open
Abstract
Wine oxidation and ageing involve many complex chemical pathways and reaction mechanisms. The purpose of this study is to set up new and reproducible accelerated red wine ageing tests and identify chemical oxidation or ageing molecular markers. Three accelerated and reproducible ageing tests were developed: a heat test (60 °C); an enzymatic test (laccase test; a chemical test (hydrogen peroxide test). Depending on the test, oxygen consumption was significantly different. For a young wine (2018), the oxygen consumption rate moved from 2.40 ppm.h-1 for the heat test to 3.33 ppm.h-1 for the enzymatic test and 2.86 ppm.h-1 for the chemical test. Once applied to two other vintages (2010 and 2014) from the same winery, the tests revealed different comportments corresponding to wine natural evolution. High resolution UPLC-MS was performed on forced ageing samples and compared to naturally aged red wines. Specific oxidation or ageing ion markers were found with significant differences between tests, revealing the specificity of each test and different possible molecular pathways involved. The hydrogen peroxide test seems to be closer to natural oxidation with an important decrease in absorbance at 520 nm and similar molecular ion variations for [M+H]+ = 291, 331, 347, 493, 535, 581, 639 Da.
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Affiliation(s)
- Stacy Deshaies
- SPO, Université de Montpellier, INRAE, Institut Agro, 34000 Montpellier, France; (S.D.); (F.G.); (L.M.)
| | - Guillaume Cazals
- IBMM, Université de Montpellier, 34093 Montpellier, France; (G.C.); (C.E.)
| | - Christine Enjalbal
- IBMM, Université de Montpellier, 34093 Montpellier, France; (G.C.); (C.E.)
| | - Thibaut Constantin
- Laboratoire d’Œnologie, UFR Pharmacie, Université de Montpellier, 34000 Montpellier, France;
| | - François Garcia
- SPO, Université de Montpellier, INRAE, Institut Agro, 34000 Montpellier, France; (S.D.); (F.G.); (L.M.)
| | - Laetitia Mouls
- SPO, Université de Montpellier, INRAE, Institut Agro, 34000 Montpellier, France; (S.D.); (F.G.); (L.M.)
| | - Cédric Saucier
- SPO, Université de Montpellier, INRAE, Institut Agro, 34000 Montpellier, France; (S.D.); (F.G.); (L.M.)
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20
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Christofi S, Malliaris D, Katsaros G, Panagou E, Kallithraka S. Limit SO2 content of wines by applying High Hydrostatic Pressure. INNOV FOOD SCI EMERG 2020. [DOI: 10.1016/j.ifset.2020.102342] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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21
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Romanet R, Bahut F, Nikolantonaki M, Gougeon RD. Molecular Characterization of White Wines Antioxidant Metabolome by Ultra High Performance Liquid Chromatography High-Resolution Mass Spectrometry. Antioxidants (Basel) 2020; 9:antiox9020115. [PMID: 32012937 PMCID: PMC7070782 DOI: 10.3390/antiox9020115] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 01/22/2020] [Accepted: 01/23/2020] [Indexed: 11/23/2022] Open
Abstract
The knowledge about the molecular fraction contributing to white wines oxidative stability is still poorly understood. However, the role of S- and N-containing compounds, like glutathione and other peptides, as a source of reductant in many oxidation reactions, and acting against heavy metals toxicity, or lipid and polyphenol oxidation as ROS-scavenger is today very well established. In that respect, the aim of the present study is to introduce an original analytical tool for the direct determination of the available nucleophilic compounds in white wine under acidic pH conditions. One step derivatization of nucleophiles has been realized directly in wines using 4-methyl-1,2-benzoquinone (4MeQ) as an electrophilic probe. Derivatization conditions considering probe concentration, pH, reaction time, MS ionisation conditions and adducts stability, were optimized using model solutions containing standard sulfur and amino compounds (GSH, Cys, HCys and Ser-Aps-Cys-Asp-Ser, Asp-Met, Met and Glu). Ultra-high-performance liquid chromatography coupled to a quadrupole-time of flight mass spectrometer (UHPLC-QqTOF-MS) analysis of up to 92 white wines from different cultivars (Chardonnay, Sauvignon and Semillon) followed by Multivariate analysis (PLS DA) and Wilcoxon test allowed to isolate up to 141 putative wine relevant nucleophiles. Only 20 of these compounds, essentially thiols, were detectable in samples before derivatization, indicating the importance of the quinone trapping on the revelation of wine unknown nucleophiles. Moreover, annotation using online database (Oligonet, Metlin and KEGG) as well as elementary formula determined by isotopic profile, provided evidence of the presence of amino acids (Val, Leu, Ile, Pro, Trp, Cys and Met) and peptides with important antioxidant properties. The complimentary set of MS/MS spectral data greatly accelerated identification of nucleophiles and enabled peptides sequencing. These results show that probing wines with 4-methyl-1,2-benzoquinone enhances thiols ionisation capacity and gives a better screening of specific S- N- containing functional compounds as part of the white wines antioxidant metabolome.
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22
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Abstract
Condensed tannin are polymers comprised of procyanidin and prodelphinidin units and found in wine, chocolate, apples and many other foods. Current analytical methods to characterize these tannins provide aggregate functional results, such as quantified protein binding, important for its relation to astringency. A more detailed understanding of the constituents has become accessible via mass spectrometry (MS) with high resolution and tandem MS techniques. Analysis of wine tannin by these methods provides thousands of signals, far too many to assess using standard techniques. We propose targeted mass filtering using a table of predicted proanthocyanidin oligomers. Condensed tannin in wine is comprised of 4 constitutionally distinct subunits (catechin, catechin gallate, gallocatechin, and gallocatechin gallate), each of which has 4 stereoisomers. Accounting for all 16 subunits, there are over 5 million possible oligomers from monomer to decamer. Since mass spectroscopy is generally blind to stereoisomeric variations, the number of possible observable MS signals can be reduced to a list of 1000. By applying specialized combinatoric functions, a table for the now manageable compilation of possible proanthocyanidin oligomers has been created containing the compound subunit compositions, molecular formulae, and molecular ion signals for the interpretation of condensed tannin mass spectra. Mathematical formulae for the enumeration of possible compounds in any chemical system composed of polymers with discrete subunits resulted from this endeavor and are presented in general form with specific application to this system. As these condensed tannins react with anthocyanins, forming pigmented tannin, the table created here can also be the foundation of a database for the very complex red wine pigments. The system described here could also be applied to the analysis of proanthocyanidins in chocolate and other foods.
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Affiliation(s)
- Jonathan R Cave
- Department of Viticulture and Enology, University of California, One Shields Avenue, Davis, CA, USA.
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23
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Samoticha J, Wojdyło A, Chmielewska J, Nofer J. Effect of Different Yeast Strains and Temperature of Fermentation on Basic Enological Parameters, Polyphenols and Volatile Compounds of Aurore White Wine. Foods 2019; 8:foods8120599. [PMID: 31757009 PMCID: PMC6963419 DOI: 10.3390/foods8120599] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2019] [Revised: 10/21/2019] [Accepted: 11/03/2019] [Indexed: 12/20/2022] Open
Abstract
The aim of this study was to investigate the content of phenolics by Ultra Performance Liquid Chromatography–Photodiode Array (UPLC–PDA), and volatile compounds by Gas Chromatography–Mass Spectroscopy (GC–MS), antioxidant capacity by 2,2′-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid) radical cation (ABTS•+) and ferric-reducing antioxidant power (FRAP) assay, and color of Comission Internationale de l’Eclairage system (CIE) L*a*b* cv. Aurora white wine depending on fermentation conditions (a temperature of 12 °C vs. 20 °C and type of natural and commercial yeast (Saccharomyces cerevisiae vs. Saccharomyces bayanus)). The final wine differed in the content of total phenolic compounds (201.0–287.2 mg/L), except for the variants fermented at 20 °C with S. cerevisiae (321.9 and 329.4 mg/L for S. cerevisiae as Challenge Aroma White and SIHA® Cryaroma type, respectively). A decrease in antioxidant activity ranging from 43.3% to 65.4% (ABTS and FRAP assay) in the matured wine vs. must was demonstrated. S. cerevisiae wine was also characterized by the highest content of total volatile compounds (3.7–4.2 mg/L vs. 1.3 mg/L in the must). In general, the wine obtained with S. cerevisiae had higher alcohol content, antioxidant capacity, and was richer in polyphenolic and volatile compounds.
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Affiliation(s)
- Justyna Samoticha
- Department of Fruit, Vegetable and Nutraceutical Plant Technology, Wrocław University of Environmental and Life Sciences, 37 Chełmońskiego Street, 51-630 Wrocław, Poland
| | - Aneta Wojdyło
- Department of Fruit, Vegetable and Nutraceutical Plant Technology, Wrocław University of Environmental and Life Sciences, 37 Chełmońskiego Street, 51-630 Wrocław, Poland
- Correspondence: ; Tel.: +48-71-3207706
| | - Joanna Chmielewska
- Department of Fermentation and Cereal Technology, Wrocław University of Environmental and Life Sciences, 37 Chełmońskiego Street, 51-630 Wrocław, Poland
| | - Joanna Nofer
- Department of Chemistry, 25 Norwida Street, 50-375 Wrocław, Poland
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Oxygen exposure during red wine fermentation modifies tannin reactivity with poly-l-proline. Food Chem 2019; 297:124923. [PMID: 31253258 DOI: 10.1016/j.foodchem.2019.05.197] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 05/29/2019] [Accepted: 05/29/2019] [Indexed: 11/22/2022]
Abstract
Red wines injected with nitrogen or oxygen during fermentation were used to identify the effect of gas exposure on tannin structure and reactivity with poly-l-proline. Tannin was purified from wine after fermentation and after three years of bottle storage. Tannin from nitrogen-treated wine had a lower percentage of galloylation and were less pigmented than tannin from oxygen-exposed wine. Self-aggregation of tannin was measured by nanoparticle tracking analysis and a larger particle size was observed for the oxidized treatment. The interaction of tannin and poly-l-proline was measured by isothermal titration calorimetry, and involved more hydrogen bonding than hydrophobic interactions in the case of nitrogen-treated wine tannin. Conversely, oxidized tannin was more hydrophobic and the association with poly-l-proline was entropy-driven due to a change of solvation. The results show meaningful changes in the structure and reactivity of tannin as a result of oxygen exposure during fermentation, which may impact astringency perception.
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25
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Tracing oxidation reaction pathways in wine using 13C isotopolog patterns and a putative compound database. Anal Chim Acta 2019; 1054:74-83. [DOI: 10.1016/j.aca.2018.12.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 12/03/2018] [Accepted: 12/09/2018] [Indexed: 11/21/2022]
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Ma L, Waterhouse AL. Flavanols react preferentially with quinones through an electron transfer reaction, stimulating rather than preventing wine browning. Anal Chim Acta 2018; 1039:162-171. [DOI: 10.1016/j.aca.2018.07.013] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 07/01/2018] [Accepted: 07/05/2018] [Indexed: 10/28/2022]
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