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Color, Antioxidant Capacity and Flavonoid Composition in Hibiscus rosa-sinensis Cultivars

Hibiscus rosa-sinensis plants are mainly cultivated as ornamental plants, but they also have food and medicinal uses. In this work, 16 H. rosa-sinensis cultivars were studied to measure their colorimetric parameters and the chemical composition of hydroethanolic extracts obtained from their petals....

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Autores principales: Mejía, Jesica J., Sierra, Lady J., Ceballos, José G., Martínez, Jairo R., Stashenko, Elena E.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9960340/
https://www.ncbi.nlm.nih.gov/pubmed/36838766
http://dx.doi.org/10.3390/molecules28041779
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author Mejía, Jesica J.
Sierra, Lady J.
Ceballos, José G.
Martínez, Jairo R.
Stashenko, Elena E.
author_facet Mejía, Jesica J.
Sierra, Lady J.
Ceballos, José G.
Martínez, Jairo R.
Stashenko, Elena E.
author_sort Mejía, Jesica J.
collection PubMed
description Hibiscus rosa-sinensis plants are mainly cultivated as ornamental plants, but they also have food and medicinal uses. In this work, 16 H. rosa-sinensis cultivars were studied to measure their colorimetric parameters and the chemical composition of hydroethanolic extracts obtained from their petals. These extracts were characterized using UHPLC-ESI(+)-Obitrap-MS, and their antioxidant activity was evaluated using the ORAC assay. The identified flavonoids included anthocyanins derived from cyanidin, glycosylated flavonols derived from quercetin and kaempferol, and flavan-3-ols such as catechin and epicatechin. Cyanidin-sophoroside was the anthocyanin present in extracts of lilac, pink, orange, and red flowers, but was not detected in extracts of white or yellow flowers. The total flavonol concentration in the flower extracts was inversely proportional to the total anthocyanin content. The flavonol concentration varied according to the cultivar in the following order: red < pink < orange < yellow ≈ white, with the extract from the red flower presenting the lowest flavonol concentration and the highest anthocyanin concentration. The antioxidant activity increased in proportion to the anthocyanin concentration, from 1580 µmol Trolox(®)/g sample (white cultivar) to 3840 µmol Trolox(®)/g sample (red cultivar).
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spelling pubmed-99603402023-02-26 Color, Antioxidant Capacity and Flavonoid Composition in Hibiscus rosa-sinensis Cultivars Mejía, Jesica J. Sierra, Lady J. Ceballos, José G. Martínez, Jairo R. Stashenko, Elena E. Molecules Article Hibiscus rosa-sinensis plants are mainly cultivated as ornamental plants, but they also have food and medicinal uses. In this work, 16 H. rosa-sinensis cultivars were studied to measure their colorimetric parameters and the chemical composition of hydroethanolic extracts obtained from their petals. These extracts were characterized using UHPLC-ESI(+)-Obitrap-MS, and their antioxidant activity was evaluated using the ORAC assay. The identified flavonoids included anthocyanins derived from cyanidin, glycosylated flavonols derived from quercetin and kaempferol, and flavan-3-ols such as catechin and epicatechin. Cyanidin-sophoroside was the anthocyanin present in extracts of lilac, pink, orange, and red flowers, but was not detected in extracts of white or yellow flowers. The total flavonol concentration in the flower extracts was inversely proportional to the total anthocyanin content. The flavonol concentration varied according to the cultivar in the following order: red < pink < orange < yellow ≈ white, with the extract from the red flower presenting the lowest flavonol concentration and the highest anthocyanin concentration. The antioxidant activity increased in proportion to the anthocyanin concentration, from 1580 µmol Trolox(®)/g sample (white cultivar) to 3840 µmol Trolox(®)/g sample (red cultivar). MDPI 2023-02-13 /pmc/articles/PMC9960340/ /pubmed/36838766 http://dx.doi.org/10.3390/molecules28041779 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Mejía, Jesica J.
Sierra, Lady J.
Ceballos, José G.
Martínez, Jairo R.
Stashenko, Elena E.
Color, Antioxidant Capacity and Flavonoid Composition in Hibiscus rosa-sinensis Cultivars
title Color, Antioxidant Capacity and Flavonoid Composition in Hibiscus rosa-sinensis Cultivars
title_full Color, Antioxidant Capacity and Flavonoid Composition in Hibiscus rosa-sinensis Cultivars
title_fullStr Color, Antioxidant Capacity and Flavonoid Composition in Hibiscus rosa-sinensis Cultivars
title_full_unstemmed Color, Antioxidant Capacity and Flavonoid Composition in Hibiscus rosa-sinensis Cultivars
title_short Color, Antioxidant Capacity and Flavonoid Composition in Hibiscus rosa-sinensis Cultivars
title_sort color, antioxidant capacity and flavonoid composition in hibiscus rosa-sinensis cultivars
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9960340/
https://www.ncbi.nlm.nih.gov/pubmed/36838766
http://dx.doi.org/10.3390/molecules28041779
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