Antioxidant activity, nutritional, and phenolic composition of sweet potato leaves as affected by harvesting period

Autores
Suárez, Santiago Emmanuel; Mu, Taihua; Sun, Hongnan; Añón, María Cristina
Año de publicación
2020
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In the present study, the nutritional and phenolic composition as well as the antioxidant activity of sweet potato leaves (SPL) harvested in 3 different periods were determined and compared. Furthermore, gray relational analysis was used to compare the comprehensive nutritional value. Results showed SPL HP1 had the highest protein value (30.8 ± 0.4 g/100 g dw), while SPL HP3 had the highest content of vitamin C (104.6 ± 4.9 mg/100 g dw), vitamin E (5.8 ± 0.4 mg/100 g dw), total polyphenol content (9.1 ± 0.3 g/100 g dw), antioxidant activity (DPPH: 7.4 ± 0.1 g VcE/100 g dw; ABTS: 10.6 ± 0.7 g VcE/100 g dw; FRAP: 0.617 ± 0.005 μmol TroloxE/100 g dw), and comprehensive nutritional value (weighted gray relational grade 0.8336). The individual phenolic composition showed the presence of six caffeoylquinic acids, caffeic acid, and two flavonoids (quercetin and isoquercetin), which were significantly different among different harvest periods. In conclusion, HP3 was an optimal period for harvesting SPL.
Centro de Investigación y Desarrollo en Criotecnología de Alimentos
Materia
Química
Sweet potato leaves
Harvest period
Nutritional composition
Phenolic composition
Antioxidant activity
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/118791
Acceder
id SEDICI_5a5987122f4db1c90fa666ec938f3e10
oai_identifier_str oai:sedici.unlp.edu.ar:10915/118791
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Antioxidant activity, nutritional, and phenolic composition of sweet potato leaves as affected by harvesting periodSuárez, Santiago EmmanuelMu, TaihuaSun, HongnanAñón, María CristinaQuímicaSweet potato leavesHarvest periodNutritional compositionPhenolic compositionAntioxidant activityIn the present study, the nutritional and phenolic composition as well as the antioxidant activity of sweet potato leaves (SPL) harvested in 3 different periods were determined and compared. Furthermore, gray relational analysis was used to compare the comprehensive nutritional value. Results showed SPL HP1 had the highest protein value (30.8 ± 0.4 g/100 g dw), while SPL HP3 had the highest content of vitamin C (104.6 ± 4.9 mg/100 g dw), vitamin E (5.8 ± 0.4 mg/100 g dw), total polyphenol content (9.1 ± 0.3 g/100 g dw), antioxidant activity (DPPH: 7.4 ± 0.1 g VcE/100 g dw; ABTS: 10.6 ± 0.7 g VcE/100 g dw; FRAP: 0.617 ± 0.005 μmol TroloxE/100 g dw), and comprehensive nutritional value (weighted gray relational grade 0.8336). The individual phenolic composition showed the presence of six caffeoylquinic acids, caffeic acid, and two flavonoids (quercetin and isoquercetin), which were significantly different among different harvest periods. In conclusion, HP3 was an optimal period for harvesting SPL.Centro de Investigación y Desarrollo en Criotecnología de Alimentos2020info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf178-188http://sedici.unlp.edu.ar/handle/10915/118791enginfo:eu-repo/semantics/altIdentifier/issn/1094-2912info:eu-repo/semantics/altIdentifier/issn/1532-2386info:eu-repo/semantics/altIdentifier/doi/10.1080/10942912.2020.1716796info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:27:59Zoai:sedici.unlp.edu.ar:10915/118791Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:27:59.851SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Antioxidant activity, nutritional, and phenolic composition of sweet potato leaves as affected by harvesting period
title Antioxidant activity, nutritional, and phenolic composition of sweet potato leaves as affected by harvesting period
spellingShingle Antioxidant activity, nutritional, and phenolic composition of sweet potato leaves as affected by harvesting period
Suárez, Santiago Emmanuel
Química
Sweet potato leaves
Harvest period
Nutritional composition
Phenolic composition
Antioxidant activity
title_short Antioxidant activity, nutritional, and phenolic composition of sweet potato leaves as affected by harvesting period
title_full Antioxidant activity, nutritional, and phenolic composition of sweet potato leaves as affected by harvesting period
title_fullStr Antioxidant activity, nutritional, and phenolic composition of sweet potato leaves as affected by harvesting period
title_full_unstemmed Antioxidant activity, nutritional, and phenolic composition of sweet potato leaves as affected by harvesting period
title_sort Antioxidant activity, nutritional, and phenolic composition of sweet potato leaves as affected by harvesting period
dc.creator.none.fl_str_mv Suárez, Santiago Emmanuel
Mu, Taihua
Sun, Hongnan
Añón, María Cristina
author Suárez, Santiago Emmanuel
author_facet Suárez, Santiago Emmanuel
Mu, Taihua
Sun, Hongnan
Añón, María Cristina
author_role author
author2 Mu, Taihua
Sun, Hongnan
Añón, María Cristina
author2_role author
author
author
dc.subject.none.fl_str_mv Química
Sweet potato leaves
Harvest period
Nutritional composition
Phenolic composition
Antioxidant activity
topic Química
Sweet potato leaves
Harvest period
Nutritional composition
Phenolic composition
Antioxidant activity
dc.description.none.fl_txt_mv In the present study, the nutritional and phenolic composition as well as the antioxidant activity of sweet potato leaves (SPL) harvested in 3 different periods were determined and compared. Furthermore, gray relational analysis was used to compare the comprehensive nutritional value. Results showed SPL HP1 had the highest protein value (30.8 ± 0.4 g/100 g dw), while SPL HP3 had the highest content of vitamin C (104.6 ± 4.9 mg/100 g dw), vitamin E (5.8 ± 0.4 mg/100 g dw), total polyphenol content (9.1 ± 0.3 g/100 g dw), antioxidant activity (DPPH: 7.4 ± 0.1 g VcE/100 g dw; ABTS: 10.6 ± 0.7 g VcE/100 g dw; FRAP: 0.617 ± 0.005 μmol TroloxE/100 g dw), and comprehensive nutritional value (weighted gray relational grade 0.8336). The individual phenolic composition showed the presence of six caffeoylquinic acids, caffeic acid, and two flavonoids (quercetin and isoquercetin), which were significantly different among different harvest periods. In conclusion, HP3 was an optimal period for harvesting SPL.
Centro de Investigación y Desarrollo en Criotecnología de Alimentos
description In the present study, the nutritional and phenolic composition as well as the antioxidant activity of sweet potato leaves (SPL) harvested in 3 different periods were determined and compared. Furthermore, gray relational analysis was used to compare the comprehensive nutritional value. Results showed SPL HP1 had the highest protein value (30.8 ± 0.4 g/100 g dw), while SPL HP3 had the highest content of vitamin C (104.6 ± 4.9 mg/100 g dw), vitamin E (5.8 ± 0.4 mg/100 g dw), total polyphenol content (9.1 ± 0.3 g/100 g dw), antioxidant activity (DPPH: 7.4 ± 0.1 g VcE/100 g dw; ABTS: 10.6 ± 0.7 g VcE/100 g dw; FRAP: 0.617 ± 0.005 μmol TroloxE/100 g dw), and comprehensive nutritional value (weighted gray relational grade 0.8336). The individual phenolic composition showed the presence of six caffeoylquinic acids, caffeic acid, and two flavonoids (quercetin and isoquercetin), which were significantly different among different harvest periods. In conclusion, HP3 was an optimal period for harvesting SPL.
publishDate 2020
dc.date.none.fl_str_mv 2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/118791
url http://sedici.unlp.edu.ar/handle/10915/118791
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/1094-2912
info:eu-repo/semantics/altIdentifier/issn/1532-2386
info:eu-repo/semantics/altIdentifier/doi/10.1080/10942912.2020.1716796
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.format.none.fl_str_mv application/pdf
178-188
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 13.070432

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