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Kong C, Zhang Q, Wang Y, Huang J, Li A, Tao Y. Decoding Polysaccharides from Two Pichia Yeasts and Their Molecular Interaction with Wine Fruity Esters. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:12707-12718. [PMID: 38757388 DOI: 10.1021/acs.jafc.4c02073] [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: 05/18/2024]
Abstract
This study extensively characterized yeast polysaccharides (YPs) from Pichia fermentans (PF) and Pichia kluyveri (PK), with a specific focus on their structural attributes and their interaction with wine fruity esters in a model wine system. By finely tuning enzymatic reactions based on temperature, pH, and enzyme dosage, an optimal YP yield of 77.37% was achieved, with a specific mass ratio of cellulase, pectinase, and protease set at 3:5:2. There were four YP fractions (YPPF-W, YPPF-N, YPPK-W, and YPPK-N) isolated from the two yeasts. YPPF-N and YPPK-N were identified as glucans based on monosaccharide analysis and Fourier-transform infrared spectroscopy analysis. "Specific degradation-methylation-nuclear magnetic" elucidated YPPF-W's backbone structure as 1,3-linked α-l-Man and 1,6-linked α-d-Glc residues, while YPPK-W displayed a backbone structure of 1,3-linked α-Man residues, indicative of a mannoprotein nature. Isothermal titration calorimetry revealed spontaneous interactions between YPPK-W/YPPF-W and fruity esters across temperatures (25-45 °C), with the strongest interaction observed at 30 °C. However, distinct esters exhibited varying interactions with YPPK-W and YPPF-W, attributed to differences in molecular weights and hydrophobic characteristics. While shedding light on these intricate interactions, further experimental data is essential for a comprehensive understanding of yeast polysaccharides' or mannoproteins' impact on fruity esters. This research significantly contributes to advancing our knowledge of yeast polysaccharides' role in shaping the nuanced sensory attributes of wine.
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Affiliation(s)
- Cailin Kong
- College of Enology, Northwest A&F University, Yangling 712100, China
| | - Qi Zhang
- College of Enology, Northwest A&F University, Yangling 712100, China
| | - Yiqing Wang
- College of Enology, Northwest A&F University, Yangling 712100, China
| | - Jie Huang
- College of Enology, Northwest A&F University, Yangling 712100, China
| | - Aihua Li
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China
| | - Yongsheng Tao
- College of Enology, Northwest A&F University, Yangling 712100, China
- Shaanxi Engineering Research Center for Viti-viniculture, Yangling 712100, China
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Sales AL, Cunha SC, Ferreira IM, Morgado J, Melo L, DePaula J, Miguel MAL, Farah A. Volatilome, Microbial, and Sensory Profiles of Coffee Leaf and Coffee Leaf-Toasted Maté Kombuchas. Foods 2024; 13:484. [PMID: 38338619 PMCID: PMC10855110 DOI: 10.3390/foods13030484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 01/11/2024] [Accepted: 01/30/2024] [Indexed: 02/12/2024] Open
Abstract
Kombucha is a fermented beverage traditionally made from the leaves of Camelia sinensis. The market has drastically expanded recently, and the beverage has become more elaborated with new, healthy food materials and flavors. Pruning and harvesting during coffee production may generate tons of coffee leaves that are discarded although they contain substantial amounts of bioactive compounds, including those found in maté tea and coffee seeds. This study characterized the changes in volatilome, microbial, and sensory profiles of pure and blended arabica coffee leaf tea kombuchas between 3-9 days of fermentation. Acceptance was also evaluated by consumers from Rio de Janeiro (n = 103). Kombuchas (K) were prepared using black tea kombucha starter (BTKS) (10%), sucrose (10%), a symbiotic culture of Bacteria and Yeasts (SCOBY) (2.5%), and a pure coffee leaf infusion (CL) or a 50:50 blend with toasted maté infusion (CL-TM) at 2.5%. The RATA test was chosen for sensory profile characterization. One hundred volatile organic compounds were identified when all infusions and kombucha samples were considered. The potential impact compounds identified in CL K and CL-TM K were: methyl salicylate, benzaldehyde, hexanal, nonanal, pentadecanal, phenylethyl-alcohol, cedrol, 3,5-octadien-2-one, β-damascenone, α-ionone, β-ionone, acetic acid, caproic acid, octanoic acid, nonanoic acid, decanoic acid, isovaleric acid, linalool, (S)-dihydroactinidiolide, isoamyl alcohol, ethyl hexanoate, and geranyl acetone. Aroma and flavor descriptors with higher intensities in CL K included fruity, peach, sweet, and herbal, while CL-TM K included additional toasted mate notes. The highest mean acceptance score was given to CL-TM K and CL K on day 3 (6.6 and 6.4, respectively, on a nine-point scale). Arabica coffee leaf can be a co-product with similar fingerprinting to maté and black tea, which can be explored for the elaboration of potentially healthy fermented beverages in food industries.
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Affiliation(s)
- Amanda Luísa Sales
- Núcleo de Pesquisa em Café Prof. Luiz Carlos Trugo (NUPECAFÉ), Laboratóriode Química e Bioatividade de Alimentos, Instituto de Nutrição, Universidade Federal do Rio de Janeiro, Avenida Carlos Chagas Filho, 373, CCS, Bl. J, Rio de Janeiro 21941-902, Brazil; (A.L.S.); (J.M.); (J.D.)
- Laboratório de Microbiologia de Alimentos, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Avenida Carlos Chagas Filho, 373, CCS, Bl. I, Rio de Janeiro 21941-902, Brazil
| | - Sara C. Cunha
- LAQV/REQUIMTE, Laboratório de Bromatologia e Hidrologia, Departamento de Ciências Químicas, Faculdade de Farmácia da Universidade do Porto, 4099-030 Porto, Portugal; (S.C.C.)
| | - Isabel M.P.L.V.O. Ferreira
- LAQV/REQUIMTE, Laboratório de Bromatologia e Hidrologia, Departamento de Ciências Químicas, Faculdade de Farmácia da Universidade do Porto, 4099-030 Porto, Portugal; (S.C.C.)
| | - Jéssika Morgado
- Núcleo de Pesquisa em Café Prof. Luiz Carlos Trugo (NUPECAFÉ), Laboratóriode Química e Bioatividade de Alimentos, Instituto de Nutrição, Universidade Federal do Rio de Janeiro, Avenida Carlos Chagas Filho, 373, CCS, Bl. J, Rio de Janeiro 21941-902, Brazil; (A.L.S.); (J.M.); (J.D.)
| | - Lauro Melo
- Laboratório de Análise Sensorial e Estudos do Consumidor (LASEC), Escola de Química, Universidade Federal do Rio de Janeiro, Avenida Athos da Silveira Ramos, 149, CT, Bl. E, Rio de Janeiro 21941-909, Brazil;
| | - Juliana DePaula
- Núcleo de Pesquisa em Café Prof. Luiz Carlos Trugo (NUPECAFÉ), Laboratóriode Química e Bioatividade de Alimentos, Instituto de Nutrição, Universidade Federal do Rio de Janeiro, Avenida Carlos Chagas Filho, 373, CCS, Bl. J, Rio de Janeiro 21941-902, Brazil; (A.L.S.); (J.M.); (J.D.)
| | - Marco Antonio L. Miguel
- Laboratório de Microbiologia de Alimentos, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Avenida Carlos Chagas Filho, 373, CCS, Bl. I, Rio de Janeiro 21941-902, Brazil
| | - Adriana Farah
- Núcleo de Pesquisa em Café Prof. Luiz Carlos Trugo (NUPECAFÉ), Laboratóriode Química e Bioatividade de Alimentos, Instituto de Nutrição, Universidade Federal do Rio de Janeiro, Avenida Carlos Chagas Filho, 373, CCS, Bl. J, Rio de Janeiro 21941-902, Brazil; (A.L.S.); (J.M.); (J.D.)
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Wang L, Yin H, Shao X, Zhang Z, Zhong X, Wei R, Ding Y, Wang H, Li H. Improving the aging aroma profiles of Italian Riesling and Petit Verdot Wines: Impact of spontaneous and inoculated fermentation processes. Food Chem X 2023; 20:100978. [PMID: 37954144 PMCID: PMC10633531 DOI: 10.1016/j.fochx.2023.100978] [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: 06/27/2023] [Revised: 10/20/2023] [Accepted: 11/02/2023] [Indexed: 11/14/2023] Open
Abstract
The study employed gas chromatography-ion mobility spectrometry to differentiate between wines undergoing spontaneous fermentation and inoculated fermentation, with aging periods of 3, 9, and 15 months. The results indicate that throughout the three aging periods, there was a notable increase in the levels of ethyl hexanoate (Monomer, M), 2-methyl butanal, ethyl octanoate (M), ethyl octanoate (Dimer, D), propyl acetate, and 3-methylbutanal in the spontaneous Italian Riesling wine (RS). Furthermore, the compounds isoamyl acetate (M), ethyl formate (D), 4-methyl-2-pentanone (M), and ethyl formate (M) demonstrated the highest concentrations at 15 months in RS, accordingly, these compounds displayed a consistent upward trend throughout the aging period. A total of 14 volatile compounds exhibited an upward trend from 3 to 15 months in the spontaneous fermentation of Petit Verdot Wine (VS). Subsequently, these compounds attained their maximum levels. Spontaneous fermentation effectively enhances the aromatic characteristics of wines, consequently improving their capacity for aging.
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Affiliation(s)
- Lin Wang
- College of Enology, Northwest A&F University, Yangling 712100, Shaanxi Province, China
| | - Haining Yin
- College of Enology, Northwest A&F University, Yangling 712100, Shaanxi Province, China
| | - Xuedong Shao
- Junding Winery Co., LTD., Penglai 265600, Shandong Province, China
| | - Zhengwen Zhang
- Junding Winery Co., LTD., Penglai 265600, Shandong Province, China
| | - Xiaomin Zhong
- Junding Winery Co., LTD., Penglai 265600, Shandong Province, China
| | - Ruteng Wei
- College of Enology, Northwest A&F University, Yangling 712100, Shaanxi Province, China
| | - Yinting Ding
- College of Enology, Northwest A&F University, Yangling 712100, Shaanxi Province, China
| | - Hua Wang
- College of Enology, Northwest A&F University, Yangling 712100, Shaanxi Province, China
| | - Hua Li
- College of Enology, Northwest A&F University, Yangling 712100, Shaanxi Province, China
- Junding Winery Co., LTD., Penglai 265600, Shandong Province, China
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DePaula J, Cunha SC, Ferreira IMPLVO, Porto ACV, G Cruz A, Petrarca M, Tereza Trevisan M, Revi I, Farah A. Volatile fingerprinting, sensory characterization, and consumer acceptance of pure and blended arabica coffee leaf teas. Food Res Int 2023; 173:113361. [PMID: 37803702 DOI: 10.1016/j.foodres.2023.113361] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 08/04/2023] [Accepted: 08/05/2023] [Indexed: 10/08/2023]
Abstract
Coffee leaves contain several bioactive compounds and have been traditionally consumed as a medicinal infusion in the East for centuries. Coffee production generates large amounts of leaves as by-products, which are often wasted in most producing countries because of the low acceptability in the West. Nevertheless, processing and blending coffee leaves may increase aroma and flavor complexity. This study evaluated the volatile and sensory profiles and consumer acceptance of coffee leaf teas compared to two among the most consumed teas (black and maté teas) in Rio de Janeiro. Infusions were made with one experimental and one commercial coffee leaf tea (CLT), two black teas (BT), and one toasted maté tea (TMT) for volatile (GC-MS/MS) and sensory profiles. As an attempt to improve coffee leaf tea acceptance, CLT were also blended (50%) with BT or TMT. Acceptance, Check All That Apply (CATA), and Projective Mapping sensory tests were performed with untrained assessors aged 18-49 (n = 100). Volatile data were standardized by centering and normalization. Sensory data were treated by ANOVA/Fisher test, PCA, and AHCMFA, considering differences at p < 0.05. Ninety-two volatile compounds distributed in 12 classes were identified in different samples. CLT, BT, and TMT infusions shared 19 compounds, including 9 potential impact compounds for aroma and flavor: α-ionone, β-ionone, hexanal, nonanal, decanal, benzaldehyde, trans-linalool oxide, linalool, and dihydroactinidiolide. The most cited flavor attributes for CLT infusions were herbs/green leaf, woody and refreshing. For TMT and BT, herbs/green leaf, woody, burnt, and fermented were the most cited. These attributes agreed with the volatile profiles. CLT shared 22 compounds with TMT and 28 with BT. Considering pure infusions, TMT presented the highest mean acceptance scores (6.7), followed by Com. and Exp. CLT (6.1 and 5.8, on a 9-point-hedonic scale, respectively). Blending with TMT increased mean acceptance of Exp. CLT (6.4), while blending with BT, downgraded the mean acceptance of Com. CLT (5.3). In Projective Mapping, CLT was considered to have a higher sensory resemblance with TMT than BT. If produced adequately, CLT was shown to have good market potential to support sustainable coffee production and promote health.
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Affiliation(s)
- Juliana DePaula
- Laboratório de Química e Bioatividade de Alimentos & Núcleo de Pesquisa em Café Professor Luiz Carlos Trugo - NuPeCafé, Instituto de Nutrição Josué de Castro, Universidade Federal do Rio de Janeiro, Rio de Janeiro, ZC 21941-902, Brazil.
| | - Sara C Cunha
- LAQV/REQUIMTE, Laboratório de Bromatologia e Hidrologia, Departamento de Químicas, Faculdade de Farmácia da Universidade do Porto, 4099-030 Porto, Portugal.
| | - Isabel M P L V O Ferreira
- LAQV/REQUIMTE, Laboratório de Bromatologia e Hidrologia, Departamento de Químicas, Faculdade de Farmácia da Universidade do Porto, 4099-030 Porto, Portugal.
| | - Ana Carolina V Porto
- Laboratório de Química e Bioatividade de Alimentos & Núcleo de Pesquisa em Café Professor Luiz Carlos Trugo - NuPeCafé, Instituto de Nutrição Josué de Castro, Universidade Federal do Rio de Janeiro, Rio de Janeiro, ZC 21941-902, Brazil.
| | - Adriano G Cruz
- Instituto Federal de Educação, Ciência e Tecnologia do Rio de Janeiro, Departamento de Alimentos, 20270-021, Rio de Janeiro, Brazil.
| | - Mateus Petrarca
- LAQV/REQUIMTE, Laboratório de Bromatologia e Hidrologia, Departamento de Químicas, Faculdade de Farmácia da Universidade do Porto, 4099-030 Porto, Portugal.
| | - Maria Tereza Trevisan
- Laboratório de Produtos Naturais e Biotecnologia - Departamento de Química, Universidade Federal do ZC 60.455-760 Ceará, Fortaleza, Brazil.
| | - Ildi Revi
- Purity Coffee - Greenville, South Carolina, USA.
| | - Adriana Farah
- Laboratório de Química e Bioatividade de Alimentos & Núcleo de Pesquisa em Café Professor Luiz Carlos Trugo - NuPeCafé, Instituto de Nutrição Josué de Castro, Universidade Federal do Rio de Janeiro, Rio de Janeiro, ZC 21941-902, Brazil.
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Li N, Li G, Li A, Tao Y. Synergy Effect between Fruity Esters and Potential Odorants on the Aroma of Hutai-8 Rose Wine Revealed by Threshold, S-Curve, and σ-τ Plot Methods. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:13869-13879. [PMID: 37677081 DOI: 10.1021/acs.jafc.3c03733] [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: 09/09/2023]
Abstract
To analyze the contribution of fruity esters on wine aroma perception, the interaction levels between 12 esters and key odorants of Hutai-8 rose wine were investigated using threshold, S-curve, and σ-τ plot methods, and the aroma enhancement performance of esters was verified by using addition experiments. Results indicated that esters enhance the sweet, floral, and fruity traits of citronellol, β-damascenone, and nerolidol, especially at subthreshold levels. Meanwhile, esters increased the floral and fruity characteristics of key fermentative odorants mainly by additive effects, with acetate esters possessing a better synergy ability. In contrast, the synergy levels between binary esters were less influenced by the concentration but more by the compound structure and aroma. Additionally, moderately subjoining the type and content of esters in wine proved that their synergy effects improved the sweet trait and decreased the sour fruit trait. This finding characterized that the contribution of esters to the wine aroma was obtained by the combined synergy of odorants at a suitable concentration.
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Affiliation(s)
- Na Li
- College of Enology, Northwest A&F University, Yangling 712100, China
| | - Guanyu Li
- College of Enology, Northwest A&F University, Yangling 712100, China
| | - Aihua Li
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China
| | - Yongsheng Tao
- College of Enology, Northwest A&F University, Yangling 712100, China
- Shaanxi Engineering Research Center for Viti-viniculture, Yangling 712100, China
- Shaanxi Key Laboratory for Viti-viniculture, Yangling 712100, China
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Effect of sequential fermentation with four non-Saccharomyces and Saccharomyces cerevisiae on nutritional characteristics and flavor profiles of kiwi wines. J Food Compost Anal 2022. [DOI: 10.1016/j.jfca.2022.104480] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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