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

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...

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Detalles Bibliográficos
Autores principales: Suárez, Santiago Emmanuel, Mu, Taihua, Sun, Hongnan, Añón, María Cristina
Formato: Articulo
Lenguaje:Inglés
Publicado: 2020
Materias:
Química
Sweet potato leaves
Harvest period
Nutritional composition
Phenolic composition
Antioxidant activity
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/118791
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-118791
record_format dspace
spelling I19-R120-10915-1187912023-05-02T14:14:59Z http://sedici.unlp.edu.ar/handle/10915/118791 issn:1094-2912 issn:1532-2386 Antioxidant activity, nutritional, and phenolic composition of sweet potato leaves as affected by harvesting period Suárez, Santiago Emmanuel Mu, Taihua Sun, Hongnan Añón, María Cristina 2020 2021-05-13T16:20:38Z en Química Sweet potato leaves Harvest period Nutritional composition Phenolic composition Antioxidant activity 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 Articulo Articulo http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) application/pdf 178-188
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Química
Sweet potato leaves
Harvest period
Nutritional composition
Phenolic composition
Antioxidant activity
spellingShingle Química
Sweet potato leaves
Harvest period
Nutritional composition
Phenolic composition
Antioxidant activity
Suárez, Santiago Emmanuel
Mu, Taihua
Sun, Hongnan
Añón, María Cristina
Antioxidant activity, nutritional, and phenolic composition of sweet potato leaves as affected by harvesting period
topic_facet Química
Sweet potato leaves
Harvest period
Nutritional composition
Phenolic composition
Antioxidant activity
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.
format Articulo
Articulo
author Suárez, Santiago Emmanuel
Mu, Taihua
Sun, Hongnan
Añón, María Cristina
author_facet Suárez, Santiago Emmanuel
Mu, Taihua
Sun, Hongnan
Añón, María Cristina
author_sort Suárez, Santiago Emmanuel
title Antioxidant activity, nutritional, and phenolic composition of sweet potato leaves as affected by harvesting period
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
publishDate 2020
url http://sedici.unlp.edu.ar/handle/10915/118791
work_keys_str_mv AT suarezsantiagoemmanuel antioxidantactivitynutritionalandphenoliccompositionofsweetpotatoleavesasaffectedbyharvestingperiod
AT mutaihua antioxidantactivitynutritionalandphenoliccompositionofsweetpotatoleavesasaffectedbyharvestingperiod
AT sunhongnan antioxidantactivitynutritionalandphenoliccompositionofsweetpotatoleavesasaffectedbyharvestingperiod
AT anonmariacristina antioxidantactivitynutritionalandphenoliccompositionofsweetpotatoleavesasaffectedbyharvestingperiod
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