Grape stems as sources of tryptophan and selenium: Functional properties and antioxidant potential
The Douro Demarcated Region's winery industry produces million tonnes of by-products annually, making their reuse essential to minimize environmental impact. Grape stems, rich in bioactive compounds and nutrients, have demonstrated potential health benefits. This study analysed four red grape s...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-02-01
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| Series: | Food Chemistry: X |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590157525001075 |
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| author | Raquel Fernandes Concepción Medrano-Padial Rui Dias-Costa Raúl Domínguez-Perles Cláudia Botelho Rúben Fernandes Ana Novo Barros |
| author_facet | Raquel Fernandes Concepción Medrano-Padial Rui Dias-Costa Raúl Domínguez-Perles Cláudia Botelho Rúben Fernandes Ana Novo Barros |
| author_sort | Raquel Fernandes |
| collection | DOAJ |
| description | The Douro Demarcated Region's winery industry produces million tonnes of by-products annually, making their reuse essential to minimize environmental impact. Grape stems, rich in bioactive compounds and nutrients, have demonstrated potential health benefits. This study analysed four red grape stems from the Douro region to assess their nutritional value and potential health benefit. Tryptophan, selenium, and phenolic compounds, which regulate cognitive functions, protein and enzyme synthesis, and antioxidant processes, were analysed. Among the varieties, Touriga Nacional exhibited the highest levels of selenium, phenolics, and antioxidant capacity. Tinta Amarela and Touriga Nacional exhibited higher tryptophan levels. Moreover, proanthocyanidins, phenolic acids, flavonols, and anthocyanins were identified in all the varieties analysed. These findings highlight grape stems, particularly Touriga Nacional, as valuable sources of amino acids and bioactive compounds, offering potential in mood regulation, protein synthesis, and antioxidant defence. This research emphasizes their value to reduce waste, generating revenue, and promoting environmental sustainability. |
| format | Article |
| id | doaj-art-72715b1c4f594db1a984fa1e3d8d5dcf |
| institution | Kabale University |
| issn | 2590-1575 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Food Chemistry: X |
| spelling | doaj-art-72715b1c4f594db1a984fa1e3d8d5dcf2025-02-07T04:48:15ZengElsevierFood Chemistry: X2590-15752025-02-0126102260Grape stems as sources of tryptophan and selenium: Functional properties and antioxidant potentialRaquel Fernandes0Concepción Medrano-Padial1Rui Dias-Costa2Raúl Domínguez-Perles3Cláudia Botelho4Rúben Fernandes5Ana Novo Barros6Centre for the Research and Technology of Agro-Environmental and Biological Sciences, CITAB, Inov4Agro, Universidade Trás-os-Montes e Alto Douro, UTAD, Quinta de Prados, 5000-801 Vila Real, PortugalPhytochemistry and Healthy Foods Lab (LabFAS), CEBAS-CSIC, Campus Universitario de Espinardo, Edif. 25, 30100 Murcia, SpainCentre for the Research and Technology of Agro-Environmental and Biological Sciences, CITAB, Inov4Agro, Universidade Trás-os-Montes e Alto Douro, UTAD, Quinta de Prados, 5000-801 Vila Real, PortugalPhytochemistry and Healthy Foods Lab (LabFAS), CEBAS-CSIC, Campus Universitario de Espinardo, Edif. 25, 30100 Murcia, SpainCEB-Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal; LABBELS-Associate Laboratory, University of Minho, 4710-057 Braga, PortugalCECLIN, Centro de Estudos Clínicos, Hospital Escola Fernando Pessoa, 4420-096 Gondomar, PortugalCentre for the Research and Technology of Agro-Environmental and Biological Sciences, CITAB, Inov4Agro, Universidade Trás-os-Montes e Alto Douro, UTAD, Quinta de Prados, 5000-801 Vila Real, Portugal; Corresponding author.The Douro Demarcated Region's winery industry produces million tonnes of by-products annually, making their reuse essential to minimize environmental impact. Grape stems, rich in bioactive compounds and nutrients, have demonstrated potential health benefits. This study analysed four red grape stems from the Douro region to assess their nutritional value and potential health benefit. Tryptophan, selenium, and phenolic compounds, which regulate cognitive functions, protein and enzyme synthesis, and antioxidant processes, were analysed. Among the varieties, Touriga Nacional exhibited the highest levels of selenium, phenolics, and antioxidant capacity. Tinta Amarela and Touriga Nacional exhibited higher tryptophan levels. Moreover, proanthocyanidins, phenolic acids, flavonols, and anthocyanins were identified in all the varieties analysed. These findings highlight grape stems, particularly Touriga Nacional, as valuable sources of amino acids and bioactive compounds, offering potential in mood regulation, protein synthesis, and antioxidant defence. This research emphasizes their value to reduce waste, generating revenue, and promoting environmental sustainability.http://www.sciencedirect.com/science/article/pii/S2590157525001075Grape stemsPhenolic profileNutrition valorisationHealth potentialOne health |
| spellingShingle | Raquel Fernandes Concepción Medrano-Padial Rui Dias-Costa Raúl Domínguez-Perles Cláudia Botelho Rúben Fernandes Ana Novo Barros Grape stems as sources of tryptophan and selenium: Functional properties and antioxidant potential Food Chemistry: X Grape stems Phenolic profile Nutrition valorisation Health potential One health |
| title | Grape stems as sources of tryptophan and selenium: Functional properties and antioxidant potential |
| title_full | Grape stems as sources of tryptophan and selenium: Functional properties and antioxidant potential |
| title_fullStr | Grape stems as sources of tryptophan and selenium: Functional properties and antioxidant potential |
| title_full_unstemmed | Grape stems as sources of tryptophan and selenium: Functional properties and antioxidant potential |
| title_short | Grape stems as sources of tryptophan and selenium: Functional properties and antioxidant potential |
| title_sort | grape stems as sources of tryptophan and selenium functional properties and antioxidant potential |
| topic | Grape stems Phenolic profile Nutrition valorisation Health potential One health |
| url | http://www.sciencedirect.com/science/article/pii/S2590157525001075 |
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