Spatial Distribution and Antioxidant Activity of Extracts from Citrus Fruits

Citrus fruits are recommended components of the human diet because of their enriched composition in bioactive compounds and health benefits. Among their notable components are phenols, with a special emphasis on flavonoids, limonoids, and carboxylic acids. In this research, we have carried out a spa...

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Main Authors: María García-Nicolás, Carlos A. Ledesma-Escobar, Feliciano Priego-Capote
Format: Article
Language:English
Published: MDPI AG 2023-03-01
Series:Antioxidants
Subjects:
Online Access:https://www.mdpi.com/2076-3921/12/4/781
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author María García-Nicolás
Carlos A. Ledesma-Escobar
Feliciano Priego-Capote
author_facet María García-Nicolás
Carlos A. Ledesma-Escobar
Feliciano Priego-Capote
author_sort María García-Nicolás
collection DOAJ
description Citrus fruits are recommended components of the human diet because of their enriched composition in bioactive compounds and health benefits. Among their notable components are phenols, with a special emphasis on flavonoids, limonoids, and carboxylic acids. In this research, we have carried out a spatial metabolomics analysis for the characterization of these bioactive families in three citrus fruits, namely, lemons, limes, and mandarins. Sampling was undertaken, for which the juices and three fruit tissues, namely, albedo, flavedo, and segments, were analyzed. This characterization allowed for the determination of 49 bioactive compounds in all the samples. The composition of the different extracts was correlated with the antioxidant capacity measured by the DPPH radical scavenging activity and β-carotene bleaching assays. Flavonoids, found in the albedo and flavedo at higher concentrations, were the main components responsible for DPPH radical scavenging activity. On the other hand, the combined action of flavonoids and limonoids contributed to explaining the antioxidant activity measured by the β-carotene bleaching assay. Generally, the antioxidant capacity of juices was lower than that estimated for extracts from citrus tissues.
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spelling doaj.art-b1a14499a6b34290a3ddf12fdf8f8d672023-11-17T18:04:09ZengMDPI AGAntioxidants2076-39212023-03-0112478110.3390/antiox12040781Spatial Distribution and Antioxidant Activity of Extracts from Citrus FruitsMaría García-Nicolás0Carlos A. Ledesma-Escobar1Feliciano Priego-Capote2Department of Analytical Chemistry, Faculty of Chemistry, Regional Campus of International Excellence “Campus Mare Nostrum”, University of Murcia, E-30100 Murcia, SpainDepartment of Analytical Chemistry, Annex Marie Curie Building, Campus of Rabanales, University of Córdoba, E-14014 Córdoba, SpainDepartment of Analytical Chemistry, Annex Marie Curie Building, Campus of Rabanales, University of Córdoba, E-14014 Córdoba, SpainCitrus fruits are recommended components of the human diet because of their enriched composition in bioactive compounds and health benefits. Among their notable components are phenols, with a special emphasis on flavonoids, limonoids, and carboxylic acids. In this research, we have carried out a spatial metabolomics analysis for the characterization of these bioactive families in three citrus fruits, namely, lemons, limes, and mandarins. Sampling was undertaken, for which the juices and three fruit tissues, namely, albedo, flavedo, and segments, were analyzed. This characterization allowed for the determination of 49 bioactive compounds in all the samples. The composition of the different extracts was correlated with the antioxidant capacity measured by the DPPH radical scavenging activity and β-carotene bleaching assays. Flavonoids, found in the albedo and flavedo at higher concentrations, were the main components responsible for DPPH radical scavenging activity. On the other hand, the combined action of flavonoids and limonoids contributed to explaining the antioxidant activity measured by the β-carotene bleaching assay. Generally, the antioxidant capacity of juices was lower than that estimated for extracts from citrus tissues.https://www.mdpi.com/2076-3921/12/4/781citrus fruitsmetabolomicsspatial distributionantioxidant activityflavonoidslimonoids
spellingShingle María García-Nicolás
Carlos A. Ledesma-Escobar
Feliciano Priego-Capote
Spatial Distribution and Antioxidant Activity of Extracts from Citrus Fruits
Antioxidants
citrus fruits
metabolomics
spatial distribution
antioxidant activity
flavonoids
limonoids
title Spatial Distribution and Antioxidant Activity of Extracts from Citrus Fruits
title_full Spatial Distribution and Antioxidant Activity of Extracts from Citrus Fruits
title_fullStr Spatial Distribution and Antioxidant Activity of Extracts from Citrus Fruits
title_full_unstemmed Spatial Distribution and Antioxidant Activity of Extracts from Citrus Fruits
title_short Spatial Distribution and Antioxidant Activity of Extracts from Citrus Fruits
title_sort spatial distribution and antioxidant activity of extracts from citrus fruits
topic citrus fruits
metabolomics
spatial distribution
antioxidant activity
flavonoids
limonoids
url https://www.mdpi.com/2076-3921/12/4/781
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AT carlosaledesmaescobar spatialdistributionandantioxidantactivityofextractsfromcitrusfruits
AT felicianopriegocapote spatialdistributionandantioxidantactivityofextractsfromcitrusfruits