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Guerreiro C, Rinaldi A, Brandão E, de Jesus M, Gonçalves L, Mateus N, de Freitas V, Soares S. A look upon the adsorption of different astringent agents to oral models: Understanding the contribution of alternative mechanisms in astringency. Food Chem 2024; 448:139153. [PMID: 38569410 DOI: 10.1016/j.foodchem.2024.139153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 03/20/2024] [Accepted: 03/24/2024] [Indexed: 04/05/2024]
Abstract
Salivary proteins precipitation by interaction with polyphenols is the major mechanism for astringency. However, alternative mechanisms seem involved in the perception of different subqualities of astringency. In this study, adsorption of four astringent agents to in vitro oral models and their sensory properties were assessed. Overall, green tea infusion and tannic acid have shown a higher adsorption potential for models with oral cells and absence of saliva. Alum and grape seed extract presented higher adsorption in models with presence of oral cells and saliva. Multiple factor analysis suggested that adsorption may represent important mechanisms to elicit the astringency of alum. Models including saliva, were closely associated with overall astringency and aggressive subquality. Models with cells and absent saliva were closely associated with greenness, suggesting a taste receptor mechanism involvement in the perception. For the first time a correlation between an oral-cell based assay and astringency sensory perception was shown.
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Affiliation(s)
- Carlos Guerreiro
- REQUIMTE/LAQV, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, 689, Porto, Portugal
| | | | - Elsa Brandão
- REQUIMTE/LAQV, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, 689, Porto, Portugal
| | - Mónica de Jesus
- REQUIMTE/LAQV, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, 689, Porto, Portugal
| | - Leonor Gonçalves
- REQUIMTE/LAQV, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, 689, Porto, Portugal
| | - Nuno Mateus
- REQUIMTE/LAQV, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, 689, Porto, Portugal
| | - Victor de Freitas
- REQUIMTE/LAQV, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, 689, Porto, Portugal
| | - Susana Soares
- REQUIMTE/LAQV, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, 689, Porto, Portugal.
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2
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Oyón-Ardoiz M, Manjón E, Escribano-Bailón MT, García-Estévez I. Supramolecular study of the interaction between mannoproteins from Torulaspora delbrueckii and flavanols. Food Chem 2024; 430:137044. [PMID: 37536068 DOI: 10.1016/j.foodchem.2023.137044] [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: 03/02/2023] [Revised: 07/02/2023] [Accepted: 07/26/2023] [Indexed: 08/05/2023]
Abstract
In this work, three mannoprotein extracts were obtained from T. delbrueckii by enzymatic and chemical treatments. The obtained mannoprotein extracts showed important differences in their molecular weight distribution and monosaccharide composition, although no significant differences were found in their protein content. In order to evaluate the possible influence of mannoprotein characteristics in the interaction with flavanols, mannoprotein-flavanol interactions were studied by HPLC-DAD-MS and ITC. The results obtained indicate that the mannoprotein extracts were able to precipitate flavanols to a different extent. Furthermore, the degree of flavanol precipitation seemed not to be related to the affinity of the interaction but to the type of intermolecular forces. In this sense, a higher proportion of hydrogen bonding could favor a greater crosslinking between aggregates promoting flavanol precipitation. This, in turn, could be related to the MP characteristics since the presence of β-glucan moieties might have an effect on the formation of hydrogen bonds.
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Affiliation(s)
- María Oyón-Ardoiz
- Department of Analytical Chemistry, Nutrition and Food Science, Universidad de Salamanca, Salamanca E37007, Spain.
| | - Elvira Manjón
- Department of Analytical Chemistry, Nutrition and Food Science, Universidad de Salamanca, Salamanca E37007, Spain.
| | | | - Ignacio García-Estévez
- Department of Analytical Chemistry, Nutrition and Food Science, Universidad de Salamanca, Salamanca E37007, Spain.
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3
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Wang S, Smyth HE, Olarte Mantilla SM, Stokes JR, Smith PA. Astringency and its sub-qualities: a review of astringency mechanisms and methods for measuring saliva lubrication. Chem Senses 2024; 49:bjae016. [PMID: 38591722 DOI: 10.1093/chemse/bjae016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Indexed: 04/10/2024] Open
Abstract
Astringency is an important mouthfeel attribute that influences the sensory experiences of many food and beverage products. While salivary lubricity loss and increased oral friction were previously believed to be the only astringency mechanisms, recent research has demonstrated that nontactile oral receptors can trigger astringency by responding to astringents without mechanical stimulation. Various human factors have also been identified that affect individual responses to astringents. This article presents a critical review of the key research milestones contributing to the current understanding of astringency mechanisms and the instrumental approaches used to quantify perceived astringency intensity. Although various chemical assays or physical measures mimic in-mouth processes involved in astringent mouthfeel, this review highlights how one chemical or physical approach can only provide a single measure of astringency determined by a specific mechanism. Subsequently, using a single measurement to predict astringency perception is overly idealistic. Astringency has not been quantified beyond the loss of saliva lubrication; therefore, nontactile receptor-based responses must also be explored. An important question remains about whether astringency is a single perception or involves distinct sub-qualities such as pucker, drying, and roughness. Although these sub-quality lexicons have been frequently cited, most studies currently view astringency as a single perception rather than dividing it into sub-qualities and investigating the potentially independent mechanisms of each. Addressing these knowledge gaps should be an important priority for future research.
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Affiliation(s)
- Shaoyang Wang
- Centre for Nutrition and Food Sciences, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, Indooroopilly, QLD 4068, Australia
| | - Heather E Smyth
- Centre for Nutrition and Food Sciences, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, Indooroopilly, QLD 4068, Australia
| | - Sandra M Olarte Mantilla
- Centre for Nutrition and Food Sciences, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, Indooroopilly, QLD 4068, Australia
| | - Jason R Stokes
- School of Chemical Engineering, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Paul A Smith
- Wine Australia, P.O. Box 2733, Kent Town, SA 5071, Australia
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4
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Zhang Z, Yan B. Convolution Neural Network-Assisted Smart Fluorescent-Tongue Based on Lanthanide Ion-Induced Forming MOF/HOF Composite for Differentiation of Flavor Compounds and Wine Identification. ACS Sens 2023; 8:3585-3594. [PMID: 37612786 DOI: 10.1021/acssensors.3c01273] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/25/2023]
Abstract
Wine flavor is a vital quality characteristic in wine, influenced by those flavor components with low sensory thresholds. It is crucial to recognize and classify the wine components related to their flavor contribution. The integration of fluorescent sensors and artificial intelligence shows huge potential in flavor recognition by emulation of the gustatory perception system. Meanwhile, achieving information identification of wine based on multiple information barcodes has hopeful applications in anticounterfeiting. In this study, we present a simple method in which organic linkers are weaved into a hydrogen-bonded organic framework (HOF) for the available transformation of a metal-bonded organic framework (MOF) induced by lanthanide ions (Ln3+). The fluorescent Ln-MOF/HOF composite exhibits high sensitivity, rapid response, and good recyclability for detecting seven flavor compounds in wine, including tannic acid, ionone, vanillin, anethole, anisaldehyde, hydroxybenzaldehyde, and 4-hydroxy-2-methylacetophenone. Depending on its satisfactory detectability, a novel strategy is provided in which a fluorescent sensor is able to function as a smart fluorescent-tongue (F-tongue) by the aid of convolutional neural network to differentiate these seven flavor compounds. In addition, the Ln-MOF/HOF composite has been used to prepare multiple information barcodes for wine information identification on the basis of dynamic fluorescence response toward tannic acid. The mimetic gustatory perception system developed in this study may offer a promising strategy for flavor recognition in food and further food anticounterfeiting.
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Affiliation(s)
- Zishuo Zhang
- School of Chemical Science and Engineering, Tongji University, Siping Road 1239, Shanghai 200092, China
| | - Bing Yan
- School of Chemical Science and Engineering, Tongji University, Siping Road 1239, Shanghai 200092, China
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5
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Agostinelli F, Caldeira I, Ricardo-da-Silva JM, Damásio M, Egipto R, Silvestre J. First Approach to the Aroma Characterization of Monovarietal Red Wines Produced from Varieties Better Adapted to Abiotic Stresses. PLANTS (BASEL, SWITZERLAND) 2023; 12:2063. [PMID: 37653980 PMCID: PMC10224026 DOI: 10.3390/plants12102063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 05/04/2023] [Accepted: 05/16/2023] [Indexed: 09/02/2023]
Abstract
Adaptation strategies in the wine sector consist of the use of cultural techniques to limit damages caused by climate change, using, among other resources, varieties better adapted to the scenarios of abiotic stress exacerbation, namely water and thermal stress, as well as those more tolerant to heatwaves. With the intention to determine the aromatic characterization of ten monovarietal wines produced from cultivars with high productive performance in a global warming scenario ('Petit Verdot', 'Marselan', 'Merlot', 'Touriga Franca', 'Syrah', 'Vinhão', 'Bobal', 'Preto Martinho', 'Trincadeira', and 'Alicante Bouschet'), grown in Esporão vineyard (Alentejo, Portugal) and submitted to deficit irrigation (Ks ± 0.5), their aromatic character has been analyzed. Each grape variety was vinified at a small scale, in duplicate, and the wines were evaluated by a sensory panel, which rated several sensory attributes (visual, olfactory, and gustatory). Sensory analysis revealed a discrete appreciation for the monovarietal wines tasted, showing a differentiation at the olfactory level that was not too marked, although present, between the samples. The free volatile compounds were analysed using gas chromatography-olfactometry (GC-O), identified using a gas chromatography-mass spectrometry (GC-MS) technique and semi-quantified using the gas chromatography-flame ionization detector (GC-FID) technique. Based on the interpolation of the results of the various statistical analyses carried out, 49 probable odor active compounds (pOACs) were identified and based on the odor activity values (OAVs), 24 of them were recognized as odor active compounds (OACs) originated mainly during the fermentation processes. An aromatic characterization of the varieties has been proposed.
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Affiliation(s)
- Francesco Agostinelli
- Department of Agricultural, Forest and Food Sciences, University of Torino, Via Verdi, 8, 10124 Torino, Italy;
- LEAF—Linking Landscape, Environment, Agriculture and Food, Instituto Superior de Agronomia, Universidade de Lisboa, 1349-017 Lisbon, Portugal;
- Polo de Inovação de Dois Portos, Instituto Nacional de Investigação Agrária e Veterinária, Quinta de Almoinha, 2565-191 Dois Portos, Portugal; (M.D.); (R.E.); (J.S.)
| | - Ilda Caldeira
- Polo de Inovação de Dois Portos, Instituto Nacional de Investigação Agrária e Veterinária, Quinta de Almoinha, 2565-191 Dois Portos, Portugal; (M.D.); (R.E.); (J.S.)
- MED—Mediterranean Institute for Agriculture, Environment and Development and CHANGE—Global Change and Sustainability Institute, Institute for Advanced Studies and Research, Universidade de Évora, Pólo da Mitra, 7006-554 Évora, Portugal
| | - Jorge M. Ricardo-da-Silva
- LEAF—Linking Landscape, Environment, Agriculture and Food, Instituto Superior de Agronomia, Universidade de Lisboa, 1349-017 Lisbon, Portugal;
| | - Miguel Damásio
- Polo de Inovação de Dois Portos, Instituto Nacional de Investigação Agrária e Veterinária, Quinta de Almoinha, 2565-191 Dois Portos, Portugal; (M.D.); (R.E.); (J.S.)
| | - Ricardo Egipto
- Polo de Inovação de Dois Portos, Instituto Nacional de Investigação Agrária e Veterinária, Quinta de Almoinha, 2565-191 Dois Portos, Portugal; (M.D.); (R.E.); (J.S.)
| | - José Silvestre
- Polo de Inovação de Dois Portos, Instituto Nacional de Investigação Agrária e Veterinária, Quinta de Almoinha, 2565-191 Dois Portos, Portugal; (M.D.); (R.E.); (J.S.)
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6
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Cheng C, Liu P, Zhao P, Du G, Wang S, Liu H, Cao X, Zhao Q, Wang X. Developing novel oenological tannins from 44 plants sources by assessing astringency and color in model wine. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2023; 103:1499-1513. [PMID: 36189836 DOI: 10.1002/jsfa.12247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 09/06/2022] [Accepted: 10/03/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND Oenological tannins are commercial natural products extracted from different botanical sources, which were widely reported as prominent contributors to wine quality. Research on wine quality affected by tannins extracts promoted the development of new oenological products with low cost and high accessibility. In the present study, the structure and concentration of tannin in polyphenol extracts, as well as their correlation with astringency and the color of model wine, was investigated by UV spectrophotometer, HPLC, fluorescence quenching, sodium dodecylsulfate-polyacrylamide gel electrophoresis, colorimeter and sensory evaluation. RESULTS Resource extracts from 16 of 44 plants were screened as wine oenological tannins, according to the total polyphenol and total flavanol, as well as the intensity of astringency and bitterness. Polyphenols extracted from grape seeds and green tea were more effective in increasing the wine astringency compared to other plant tannins. CONCLUSION Total flavanol content and tannin activity showed a strong correlation with wine astringency. Condensed tannins with mean degree of polymerization also exhibited strong color stability, and the concentrations of (-)-epigallocatechin were associated with the a* value, a negative qualitative factor for wine color. The present study provides new clues regarding the development of low-cost and highly accessible sources of polyphenol extracts and lays a theoretical foundation for the development of the oenological product. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Chenyaqiong Cheng
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, China
| | - Pei Liu
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, China
| | - Pengtao Zhao
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, China
- Engineering Research Center for High-Valued Utilization of Fruit Resources in Western China, Ministry of Education, Shaanxi Normal University, Xi'an, China
| | - Guorong Du
- School of Biological and Environmental Engineering, Xi'an University, Xi'an, China
| | - Shengnan Wang
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, China
| | - Hui Liu
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, China
| | - Xiaomeng Cao
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, China
| | - Qinghao Zhao
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, China
| | - Xiaoyu Wang
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, China
- Engineering Research Center for High-Valued Utilization of Fruit Resources in Western China, Ministry of Education, Shaanxi Normal University, Xi'an, China
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7
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Pino-Ramos LL, Peña-Martínez PA, Laurie VF. Quinoa protein extract: an effective alternative for the fining of wine phenolics. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2022; 102:6320-6327. [PMID: 35531787 DOI: 10.1002/jsfa.11982] [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] [Received: 01/29/2022] [Revised: 04/29/2022] [Accepted: 05/09/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Lately, there has been an increasing interest in using plant-derived proteins for wine phenolic fining. Proteins extracted from cereals, potatoes, and legumes have been proposed as effective fining agents, but only those from pea, wheat, and potatoes have been approved for their use in wine. This work aimed at determining the fining ability of quinoa (Chenopodium quinoa Willd.) protein extracts (QP), compared to commercial fining agents, on red wines. RESULTS The trials compared the performance of QP (30 and 50 g/hL), two potato protein extracts and gelatin, at two different contact times (48 and 96 h), using Petit Verdot, Malbec, and Cabernet Sauvignon wines. Turbidity, total phenolics, precipitable tannins, catechins, and color characteristics were determined. QP reduced the turbidity of all wines in a similar way to commercial fining agents. Both doses of QP significantly reduced tannins and other phenolic measures, including color intensity reductions, in a similar way to commercial fining agents. CONCLUSION QP behaved as an effective fining agent that deserves further studies in order to improve its performance and advance its characterization. © 2022 Society of Chemical Industry.
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Affiliation(s)
| | - Paula A Peña-Martínez
- Doctorado en Ciencias Agrarias, Facultad de Ciencias Agrarias, Universidad de Talca, Talca, Chile
| | - V Felipe Laurie
- Facultad de Ciencias Agrarias, Universidad de Talca, Talca, Chile
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8
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Huang R, Fang W, Xie X, Liu Y, Xu C. Identification of key astringent compounds in aronia berry juice. Food Chem 2022; 393:133431. [PMID: 35751215 DOI: 10.1016/j.foodchem.2022.133431] [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: 02/05/2022] [Revised: 05/15/2022] [Accepted: 06/06/2022] [Indexed: 11/19/2022]
Abstract
Aronia berry has extremely strong and unpleasant astringent mouthfeel. However, detailed information on the key astringent compounds is still limited. To fill this gap, astringent compounds were firstly separated from aronia juice. Following sensory evaluation, phenolic profile determination, validation by in-vitro models, and thiolytic degradation, key astringent compounds were identified. Results showed when most proanthocyanidins (PAs) were removed while other phenolic compounds remained, the astringency intensity of aronia juice was significantly decreased. In-vitro models, including saliva precipitation index and mucin turbidity, validated PAs rather than anthocyanins as the key astringent compounds. The protein-precipitated PAs from aronia juice were identified as polymers, linked by B-type bonds, with (-)-epicatechin as the extension unit and predominantly as the terminal unit, having a 69.56 mean degree of polymerization (mDP), far higher than the 35.38 mDP of PAs separated directly from juice. These findings would be valuable to the development of targeted astringency mitigation approaches.
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Affiliation(s)
- Rui Huang
- The Food Processing Center, Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
| | - Wei Fang
- The Food Processing Center, Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE 68588, USA; Hubei Biopesticide Engineering Research Center, Hubei Academy of Agricultural Sciences, Wuhan, Hubei 430064, China
| | - Xiaoqing Xie
- The Food Processing Center, Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
| | - Yutong Liu
- The Food Processing Center, Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
| | - Changmou Xu
- The Food Processing Center, Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE 68588, USA.
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9
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Lei X, Wang S, Zhao P, Wang X. Mannoproteins, arabinogalactan protein, rhamnogalacturonan II and their pairwise combinations regulating wine astringency induced by the interaction of proanthocyanidins and proteins. Int J Biol Macromol 2022; 224:950-957. [DOI: 10.1016/j.ijbiomac.2022.10.180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 10/15/2022] [Accepted: 10/20/2022] [Indexed: 11/05/2022]
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10
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Li Y, Gao Z, Guo J, Wang J, Yang X. Modulating aroma release of flavour oil emulsion based on mucoadhesive property of tannic acid. Food Chem 2022; 388:132970. [PMID: 35483281 DOI: 10.1016/j.foodchem.2022.132970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Revised: 04/07/2022] [Accepted: 04/10/2022] [Indexed: 11/04/2022]
Abstract
Flavour is a crucial sensory element that determines the consumers' preference for food and beverages. In this study, we determined the effects of complex gum arabic (GA) and tannic acid (TA) on the aroma release of flavour oil emulsions in vitro by simulating oral processing conditions. GA and TA were used to stabilize flavour oil emulsions. Visualization of in vitro retention using ex vivo porcine tongue, detection of aroma release in the model mouth, and sensory evaluation of flavour emulsions were performed to determine the effect of TA and GA. The results indicated that the retention of emulsions and the release of aroma compounds were modulated by TA and GA, which could be because of interactions that occurred between GA and TA in emulsions and mucins on the tongue. GA enhanced aroma release, whereas TA contributed to the retention or slow release of target aroma compounds.
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Affiliation(s)
- Yanlei Li
- Glyn O. Phillips Hydrocolloid Research Centre, School of Food and Biological Engineering, Hubei University of Technology, Wuhan 430068, China; Laboratory of Food Proteins and Colloids, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Zhiming Gao
- Glyn O. Phillips Hydrocolloid Research Centre, School of Food and Biological Engineering, Hubei University of Technology, Wuhan 430068, China
| | - Jian Guo
- Laboratory of Food Proteins and Colloids, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Jinmei Wang
- Laboratory of Food Proteins and Colloids, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Xiaoquan Yang
- Laboratory of Food Proteins and Colloids, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China.
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11
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Quality Changes in Black Chokeberry Juice Treated by Thermal-Assisted High Hydrostatic Pressure during Cold Storage. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27185892. [PMID: 36144629 PMCID: PMC9500851 DOI: 10.3390/molecules27185892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 08/30/2022] [Accepted: 08/31/2022] [Indexed: 12/03/2022]
Abstract
The effects of thermal-assisted high hydrostatic pressure (TAHHP), high hydrostatic pressure (HHP), and thermal pasteurization (TP) treatments on the quality of aronia juice were evaluated in this study. The results showed that TAHHP and HHP significantly decreased the aerobic plate counts of aronia juice. No significant differences in terms of physicochemical properties, such as pH and total soluble solids, were observed between aronia juice treated with high pressure or thermal pasteurization treatment after 28 days of storage. TAHHP and HHP affected the colour and antioxidant characteristics of aronia juice, though to a significantly lower extent than TP. This result demonstrates that TAHHP and HHP can better maintain the original quality of aronia juice than TP. In summary, both TAHHP and HHP can maintain the microbiological safety and original quality characteristics of aronia juice. TAHHP can effectively increase the safety and duration of cold storage of aronia juice, and hence is highly useful for the juice industry.
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12
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Baca-Bocanegra B, Gonçalves S, Nogales-Bueno J, Mansinhos I, Heredia FJ, Hernández-Hierro JM, Romano A. Influence of Wine pH and Ethanol Content on the Fining Efficacy of Proteins from Winemaking By-Products. Foods 2022; 11:foods11121688. [PMID: 35741886 PMCID: PMC9222633 DOI: 10.3390/foods11121688] [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: 05/16/2022] [Revised: 06/01/2022] [Accepted: 06/07/2022] [Indexed: 02/04/2023] Open
Abstract
Wine color and limpidity are important aspects of consumer preferences. The alteration of these parameters can damage wine’s appearance but also its mouthfeel characteristics due to its relationship with attributes such as bitterness and astringency. Fining is a practice usually used in enology to modulate undesirable wine organoleptic attributes. However, there are several factors that influence this technique. In this study, the influence of wine pH and ethanol content on grape seed protein fining efficacy has been assessed. Wine clarification, total phenolic and flavanol contents, antioxidant activity, and chromatic parameters have been investigated before and after fining process. The most noticeable clarifying effects were observed for the experimental wines with a lower pH and ethanol content. Control of these factors will make it possible to modulate the main organoleptic properties of the wine, also avoiding the addition of large amounts of fining agents and thus providing greater versatility to wineries during winemaking. Furthermore, our findings indicated that grape seed protein is a potential alternative to other plant-based fining proteins commonly used in winemaking. Its effects on clarification and color quality have been found to be comparable to those of potato protein and significantly better than those of pea protein.
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Affiliation(s)
- Berta Baca-Bocanegra
- Department of Analytical Chemistry, Facultad de Farmacia, Universidad de Sevilla, 41012 Sevilla, Spain; (B.B.-B.); (J.N.-B.)
| | - Sandra Gonçalves
- MED—Mediterranean Institute for Agriculture, Environment and Development and CHANGE–Global Change and Sustainability Institute, Faculdade de Ciências e Tecnologia, Universidade do Algarve, Campus de Gambelas, Ed. 8, 8005-139 Faro, Portugal; (S.G.); (I.M.); (A.R.)
| | - Julio Nogales-Bueno
- Department of Analytical Chemistry, Facultad de Farmacia, Universidad de Sevilla, 41012 Sevilla, Spain; (B.B.-B.); (J.N.-B.)
| | - Inês Mansinhos
- MED—Mediterranean Institute for Agriculture, Environment and Development and CHANGE–Global Change and Sustainability Institute, Faculdade de Ciências e Tecnologia, Universidade do Algarve, Campus de Gambelas, Ed. 8, 8005-139 Faro, Portugal; (S.G.); (I.M.); (A.R.)
| | - Francisco José Heredia
- Food Colour and Quality Laboratory, Department of Nutrition and Food Science, Facultad de Farmacia, Universidad de Sevilla, 41012 Sevilla, Spain;
| | - José Miguel Hernández-Hierro
- Food Colour and Quality Laboratory, Department of Nutrition and Food Science, Facultad de Farmacia, Universidad de Sevilla, 41012 Sevilla, Spain;
- Correspondence: ; Tel.: +34-954-556-495
| | - Anabela Romano
- MED—Mediterranean Institute for Agriculture, Environment and Development and CHANGE–Global Change and Sustainability Institute, Faculdade de Ciências e Tecnologia, Universidade do Algarve, Campus de Gambelas, Ed. 8, 8005-139 Faro, Portugal; (S.G.); (I.M.); (A.R.)
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Kowalczyk B, Bieniasz M, Kostecka-Gugała A. The Content of Selected Bioactive Compounds in Wines Produced from Dehydrated Grapes of the Hybrid Variety ‘Hibernal’ as a Factor Determining the Method of Producing Straw Wines. Foods 2022; 11:foods11071027. [PMID: 35407114 PMCID: PMC8997453 DOI: 10.3390/foods11071027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 03/28/2022] [Accepted: 03/29/2022] [Indexed: 11/16/2022] Open
Abstract
Sweet wines are appreciated worldwide; many are produced by fermenting the must of dehydrated (semi-dried) grapes, using methods that vary from region to region. The aim of this study was to evaluate the basic chemical and oenological characteristics of wines obtained by three technologies of production. The wines were made from a hybrid cultivar ‘Hibernal’, grown under cool climate conditions. ‘Hibernal’ is a hybrid variety. This ‘Hibernal’ variety is widely cultivated in central and eastern Europe, where it is of great economic importance. Wines produced from this variety are popular in local markets. In comparison with the production of varieties belonging to Vitis vinifera, a very small percentage of the ‘Hibernal’ variety is cultivated. The methods used in the experiment for the production of wines were: classical method in the Italian passito style, modification of the passito style with a seven-day maceration of grapes, and a method of production in the Tokaj wine style at five Puttonyos. Basic chemical parameters, acid profile, total phenolic content, antioxidant and antiradical capacities, and quantitative analysis of selected polyphenols was performed. The sensory features and quality of the wines was assessed using a sommelier analysis based on The Wine & Spirit Education Trust guidelines. The results indicated that the seven-day maceration of the dehydrated grapes resulted in the highest polyphenol content, as well as the largest antioxidant and antiradical contents. The oenological evaluation of wines produced by the Tokaj method and Italian passito method with seven-day maceration found that the wines were appreciated due to their rich taste, flavor, and overall quality. The present study confirms the promising opportunities to obtain special sweet wine with a valuable composition and oenological characteristics in regions with cooler climates.
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Affiliation(s)
- Barbara Kowalczyk
- Department of Ornamental Plants and Garden Art, Faculty of Biotechnology and Horticulture, University of Agriculture in Krakow, Al. 29-Listopada 54, 31-425 Kraków, Poland
- Correspondence:
| | - Monika Bieniasz
- Department of Horticulture, Faculty of Biotechnology and Horticulture, University of Agriculture in Krakow, Al. 29-Listopada 54, 31-425 Kraków, Poland;
| | - Anna Kostecka-Gugała
- Department of Plant Biology and Biotechnology, Faculty of Biotechnology and Horticulture, University of Agriculture in Krakow, Al. 29-Listopada 54, 31-425 Kraków, Poland;
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