A sustainable approach for the valorization of underutilized date fruits
Autor(a) principal: | |
---|---|
Data de Publicação: | 2023 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | https://hdl.handle.net/1822/87064 |
Resumo: | Secondary varieties of date fruits are often discarded because they do not have commercial value. However, their phytochemicals are very similar to those of the primary ones and therefore, they can be valorized as a source of compounds of interest, mainly phenols and dietary fiber. Their chemical composition changes with ripening, so their characterization throughout this process is of great significance. Date fruit samples were harvested at Khalal, Rutab, and Tamer stages, and a mixture of fruits from ornamental date trees was also analyzed. Aqueous and ethanolic extracts were studied for their phenolic composition. In aqueous extracts, phenols decreased with ripening, while in the ethanolic ones having higher phenolic content. Chelidonic acid, a γ-pyrone, was the major compound found in all extracts, but in the ethanolic ones, flavonoids were also present in similar amounts. After purification by adsorption chromatography, all extracts were assayed for their antimicrobial activity. Those from the Tamer stage showed the highest activity, especially against Gram-positive bacteria. The fibrous residues after aqueous and ethanolic extractions were also characterized. Their chemical composition suggested that they can be considered as a good source of prebiotic arabinoxylans and antioxidant fiber, whose antiradical activity correlated with their phenolic content. Date fruits from secondary varieties are promising as a worthwhile starting point for obtaining new value-added products. |
id |
RCAP_8a17edf7c24f9f6b1c2059dab76e7bf6 |
---|---|
oai_identifier_str |
oai:repositorium.sdum.uminho.pt:1822/87064 |
network_acronym_str |
RCAP |
network_name_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository_id_str |
7160 |
spelling |
A sustainable approach for the valorization of underutilized date fruitsDate fruitSecondary varietyValorizationAgricultural by-productsPhenolic compositionAntioxidant capacityAntimicrobial activityDietary fiberPrebioticsSecondary varieties of date fruits are often discarded because they do not have commercial value. However, their phytochemicals are very similar to those of the primary ones and therefore, they can be valorized as a source of compounds of interest, mainly phenols and dietary fiber. Their chemical composition changes with ripening, so their characterization throughout this process is of great significance. Date fruit samples were harvested at Khalal, Rutab, and Tamer stages, and a mixture of fruits from ornamental date trees was also analyzed. Aqueous and ethanolic extracts were studied for their phenolic composition. In aqueous extracts, phenols decreased with ripening, while in the ethanolic ones having higher phenolic content. Chelidonic acid, a γ-pyrone, was the major compound found in all extracts, but in the ethanolic ones, flavonoids were also present in similar amounts. After purification by adsorption chromatography, all extracts were assayed for their antimicrobial activity. Those from the Tamer stage showed the highest activity, especially against Gram-positive bacteria. The fibrous residues after aqueous and ethanolic extractions were also characterized. Their chemical composition suggested that they can be considered as a good source of prebiotic arabinoxylans and antioxidant fiber, whose antiradical activity correlated with their phenolic content. Date fruits from secondary varieties are promising as a worthwhile starting point for obtaining new value-added products.This research was funded by the project GreenPalm of the PRIMA EuropeanAction, Project 25/Section II-2019, the grant PCI2020-112088 funded by MCIN/AEI/10.13039/501100011033 and by European Union NextGenerationEU/PRTR, by FCT (Fundaçao para a Ciencia e a Tecnologia, Portugal) in the framework of the project PRIMA/0001/2019 and CBMA (UIBD/04050/2020), and by European Union “NextGenerationEU” by the grant “Margarita Salas” (A.H.) for the Requalification of the Spanish university system 2021–2023 convened by the University Pablo de Olavide (Sevilla, Spain).Multidisciplinary Digital Publishing Institute (MDPI)Universidade do MinhoHamdi, AmelViera-Alcaide, IsabelCosta, SusanaLino-Neto, T.Guillén-Bejarano, RafaelRodríguez-Arcos, RocíoJiménez-Araujo, Ana2023-08-012023-08-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/1822/87064engHamdi, A.; Viera-Alcaide, I.; Costa, S.; Lino-Neto, T.; Guillén-Bejarano, R.; Rodríguez-Arcos, R.; Jiménez-Araujo, A. A Sustainable Approach for the Valorization of Underutilized Date Fruits. Molecules 2023, 28, 5807. https://doi.org/10.3390/molecules281558071420-304910.3390/molecules28155807375707775807https://www.mdpi.com/1420-3049/28/15/5807info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-12-23T01:39:01Zoai:repositorium.sdum.uminho.pt:1822/87064Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T21:26:00.811683Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
A sustainable approach for the valorization of underutilized date fruits |
title |
A sustainable approach for the valorization of underutilized date fruits |
spellingShingle |
A sustainable approach for the valorization of underutilized date fruits Hamdi, Amel Date fruit Secondary variety Valorization Agricultural by-products Phenolic composition Antioxidant capacity Antimicrobial activity Dietary fiber Prebiotics |
title_short |
A sustainable approach for the valorization of underutilized date fruits |
title_full |
A sustainable approach for the valorization of underutilized date fruits |
title_fullStr |
A sustainable approach for the valorization of underutilized date fruits |
title_full_unstemmed |
A sustainable approach for the valorization of underutilized date fruits |
title_sort |
A sustainable approach for the valorization of underutilized date fruits |
author |
Hamdi, Amel |
author_facet |
Hamdi, Amel Viera-Alcaide, Isabel Costa, Susana Lino-Neto, T. Guillén-Bejarano, Rafael Rodríguez-Arcos, Rocío Jiménez-Araujo, Ana |
author_role |
author |
author2 |
Viera-Alcaide, Isabel Costa, Susana Lino-Neto, T. Guillén-Bejarano, Rafael Rodríguez-Arcos, Rocío Jiménez-Araujo, Ana |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Hamdi, Amel Viera-Alcaide, Isabel Costa, Susana Lino-Neto, T. Guillén-Bejarano, Rafael Rodríguez-Arcos, Rocío Jiménez-Araujo, Ana |
dc.subject.por.fl_str_mv |
Date fruit Secondary variety Valorization Agricultural by-products Phenolic composition Antioxidant capacity Antimicrobial activity Dietary fiber Prebiotics |
topic |
Date fruit Secondary variety Valorization Agricultural by-products Phenolic composition Antioxidant capacity Antimicrobial activity Dietary fiber Prebiotics |
description |
Secondary varieties of date fruits are often discarded because they do not have commercial value. However, their phytochemicals are very similar to those of the primary ones and therefore, they can be valorized as a source of compounds of interest, mainly phenols and dietary fiber. Their chemical composition changes with ripening, so their characterization throughout this process is of great significance. Date fruit samples were harvested at Khalal, Rutab, and Tamer stages, and a mixture of fruits from ornamental date trees was also analyzed. Aqueous and ethanolic extracts were studied for their phenolic composition. In aqueous extracts, phenols decreased with ripening, while in the ethanolic ones having higher phenolic content. Chelidonic acid, a γ-pyrone, was the major compound found in all extracts, but in the ethanolic ones, flavonoids were also present in similar amounts. After purification by adsorption chromatography, all extracts were assayed for their antimicrobial activity. Those from the Tamer stage showed the highest activity, especially against Gram-positive bacteria. The fibrous residues after aqueous and ethanolic extractions were also characterized. Their chemical composition suggested that they can be considered as a good source of prebiotic arabinoxylans and antioxidant fiber, whose antiradical activity correlated with their phenolic content. Date fruits from secondary varieties are promising as a worthwhile starting point for obtaining new value-added products. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-08-01 2023-08-01T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://hdl.handle.net/1822/87064 |
url |
https://hdl.handle.net/1822/87064 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Hamdi, A.; Viera-Alcaide, I.; Costa, S.; Lino-Neto, T.; Guillén-Bejarano, R.; Rodríguez-Arcos, R.; Jiménez-Araujo, A. A Sustainable Approach for the Valorization of Underutilized Date Fruits. Molecules 2023, 28, 5807. https://doi.org/10.3390/molecules28155807 1420-3049 10.3390/molecules28155807 37570777 5807 https://www.mdpi.com/1420-3049/28/15/5807 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Multidisciplinary Digital Publishing Institute (MDPI) |
publisher.none.fl_str_mv |
Multidisciplinary Digital Publishing Institute (MDPI) |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
|
_version_ |
1799134141789241344 |