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Registro Completo |
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
14/12/2023 |
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Data da última atualização: |
15/05/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BRAVO, C.; PÉREZ-GREGÓRIO, R.; PELLEGRINI, E.; CONTIN, M.; BRANDÃO, E.; RAMOS, R. M.; MARTIN NETO, L.; De NOBILI, M.; FREITAS, V. de; SOARES, S. |
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Afiliação: |
Department of Agricultural Food Environmental and Animal Sciences, University of Udine; Institute of Food and Agroecology, Food and Health Omics Group, University of Vigo, Campus As Lagoas s/n, Ourense 32004, Spain; Department of Agricultural Food Environmental and Animal Sciences, University of Udine, Via Delle Scienze 206, Udine 33100, Italy; Department of Agricultural Food Environmental and Animal Sciences, University of Udine, Via Delle Scienze 206, Udine 33100, Italy; LAQV-REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre 687, Porto 4169-007, Portugal; LAQV-REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre 687, Porto 4169-007, Portugal; LADISLAU MARTIN NETO, CNPDIA; Department of Agricultural Food Environmental and Animal Sciences, University of Udine, Via Delle Scienze 206, Udine 33100, Italy; LAQV-REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre 687, Porto 4169-007, Portugal; LAQV-REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre 687, Porto 4169-007, Portugal. |
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Título: |
Unlocking the Potential of Spent Coffee Grounds as a Source of Humic-like Substances with High Antioxidant Capacity. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Waste and Biomass Valorization, v. 15, n. 5, 2023. |
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Páginas: |
2769-2779 |
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DOI: |
https://doi.org/10.1007/s12649-023-02344-9 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract Purpose The environmental impacts of the coffee industry are enormous, with large quantities of solid and liquid wastes generated globally. In the last years, measures have been implemented to valorize spent coffee grounds (SCGs) biowaste as a resource. The present study assessed the unexplored potential use of SCGs as a source of valuable humic substances (HS)-like materials, and linked their antioxidant properties to their chemical composition. Methods Humic acid-like (HAL) and fulvic acid-like (FAL) were extracted from SCGs and characterized by elemental composition, UV-vis, FTIR, NMR and EPR spectroscopies. Their antioxidant capacity was determined in vitro through the ABTS decolorization assay and voltammetric techniques. Results Elemental and spectroscopic characteristics were in the range of soil HS. Both HAL and FAL showed a high antioxidant capacity (2.29±0.18 mmole− gHAL−1 and 3.63±0.21 mmole− gFAL−1 ). The differences in the antioxidant and electrochemical responses of HAL and FAL are related to their chemical structure. Conclusion The extraction of HS-like with remarkable antioxidant properties makes them a promising low-cost material to be upcycled in the agri-food system as natural fertilizer or novel antioxidants. |
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Palavras-Chave: |
Circular economy; Spent coffee grounds. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02109naa a2200277 a 4500
001 2159781
005 2024-05-15
008 2023 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s12649-023-02344-9$2DOI
100 1 $aBRAVO, C.
245 $aUnlocking the Potential of Spent Coffee Grounds as a Source of Humic-like Substances with High Antioxidant Capacity.$h[electronic resource]
260 $c2023
300 $a2769-2779
520 $aAbstract Purpose The environmental impacts of the coffee industry are enormous, with large quantities of solid and liquid wastes generated globally. In the last years, measures have been implemented to valorize spent coffee grounds (SCGs) biowaste as a resource. The present study assessed the unexplored potential use of SCGs as a source of valuable humic substances (HS)-like materials, and linked their antioxidant properties to their chemical composition. Methods Humic acid-like (HAL) and fulvic acid-like (FAL) were extracted from SCGs and characterized by elemental composition, UV-vis, FTIR, NMR and EPR spectroscopies. Their antioxidant capacity was determined in vitro through the ABTS decolorization assay and voltammetric techniques. Results Elemental and spectroscopic characteristics were in the range of soil HS. Both HAL and FAL showed a high antioxidant capacity (2.29±0.18 mmole− gHAL−1 and 3.63±0.21 mmole− gFAL−1 ). The differences in the antioxidant and electrochemical responses of HAL and FAL are related to their chemical structure. Conclusion The extraction of HS-like with remarkable antioxidant properties makes them a promising low-cost material to be upcycled in the agri-food system as natural fertilizer or novel antioxidants.
653 $aCircular economy
653 $aSpent coffee grounds
700 1 $aPÉREZ-GREGÓRIO, R.
700 1 $aPELLEGRINI, E.
700 1 $aCONTIN, M.
700 1 $aBRANDÃO, E.
700 1 $aRAMOS, R. M.
700 1 $aMARTIN NETO, L.
700 1 $aDe NOBILI, M.
700 1 $aFREITAS, V. de
700 1 $aSOARES, S.
773 $tWaste and Biomass Valorization$gv. 15, n. 5, 2023.
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