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10.3390/plants9081045
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Article

Evaluation of Anthocyanin Profile, Antioxidant, Cytoprotective, and Anti-Angiogenic Properties of Callistemon citrinus Flowers

by
Giuseppina Laganà
,
Davide Barreca
*,
Antonella Smeriglio
,
Maria Paola Germanò
,
Valeria D'Angelo
,
Antonella Calderaro
,
Ersilia Bellocco
and
Domenico Trombetta
Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Via G. Palatucci, 98168 Messina, Italy
*
Author to whom correspondence should be addressed.
Plants 2020, 9(8), 1045; https://doi.org/10.3390/plants9081045
Submission received: 11 July 2020 / Revised: 10 August 2020 / Accepted: 16 August 2020 / Published: 17 August 2020
(This article belongs to the Special Issue Mechanisms of Plant Antioxidants Action)
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Abstract

Lemon bottlebrush (Callistemon citrinus (Curtis) Skeels) is one of the most common ornamental plants, diffused worldwide, and characterized by the presence of flowers with an intense red/purple coloration. There is increasing interest in the use and application of anthocyanins for their unique structural/chemical features in both food and pharmaceutical applications. RP-HPLC-DAD-ESI-MS/MS analysis of an enriched fraction of acidified methanolic extract of C. citrinus flowers allow the possibility of identifying, for the first time, the presence of four anthocyanins: cyanidin-3,5-O-diglucoside (cyanin), peonidin-3,5-O-diglucoside (peonin), cyanidin-3-O-glucoside, and cyanidin-coumaroylglucoside-pyruvic acid. Moreover, the evaluation of antioxidant and biological potential showed a remarkable activity of this fraction, able to actively scavenge DPPH, AAPH, and ABTS radicals, and to counteract the β-carotene-bleaching. In addition, it protects human mononuclear cells from oxidative injuries and prevents angiogenesis (acting in the range of few μg/ml); furthermore, it does not show significant iron-chelating ability (up to 200 µg/mL). The easy way of cultivation, robustness, and adaptability to different environments make the flowers of this plant a useful source of anthocyanins, with remarkable health promoting properties.
Keywords: Callistemon citrinus (Curtis) Skeels; anthocyanins; antioxidants; cytoprotection, anti-angiogenic activity Callistemon citrinus (Curtis) Skeels; anthocyanins; antioxidants; cytoprotection, anti-angiogenic activity

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MDPI and ACS Style

Laganà, G.; Barreca, D.; Smeriglio, A.; Germanò, M.P.; D'Angelo, V.; Calderaro, A.; Bellocco, E.; Trombetta, D. Evaluation of Anthocyanin Profile, Antioxidant, Cytoprotective, and Anti-Angiogenic Properties of Callistemon citrinus Flowers. Plants 2020, 9, 1045. https://doi.org/10.3390/plants9081045

AMA Style

Laganà G, Barreca D, Smeriglio A, Germanò MP, D'Angelo V, Calderaro A, Bellocco E, Trombetta D. Evaluation of Anthocyanin Profile, Antioxidant, Cytoprotective, and Anti-Angiogenic Properties of Callistemon citrinus Flowers. Plants. 2020; 9(8):1045. https://doi.org/10.3390/plants9081045

Chicago/Turabian Style

Laganà, Giuseppina, Davide Barreca, Antonella Smeriglio, Maria Paola Germanò, Valeria D'Angelo, Antonella Calderaro, Ersilia Bellocco, and Domenico Trombetta. 2020. "Evaluation of Anthocyanin Profile, Antioxidant, Cytoprotective, and Anti-Angiogenic Properties of Callistemon citrinus Flowers" Plants 9, no. 8: 1045. https://doi.org/10.3390/plants9081045

APA Style

Laganà, G., Barreca, D., Smeriglio, A., Germanò, M. P., D'Angelo, V., Calderaro, A., Bellocco, E., & Trombetta, D. (2020). Evaluation of Anthocyanin Profile, Antioxidant, Cytoprotective, and Anti-Angiogenic Properties of Callistemon citrinus Flowers. Plants, 9(8), 1045. https://doi.org/10.3390/plants9081045

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