Unearthing of the Antidiabetic Potential of Aqueous Extract of <i>Solanum betaceum</i> Cav. Leaves

<i>Solanum betaceum</i> Cav., commonly known as tamarillo or Brazilian tomato, belongs to the Solanaceae family. Its fruit is used in traditional medicine and food crops due to its health benefits. Despite the numerous studies involving the fruit, there is no scientific knowledge about t...

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Main Authors: Raquel Martins, Fátima Fernandes, Patrícia Valentão
Format: Article
Language:English
Published: MDPI AG 2023-04-01
Series:Molecules
Subjects:
Online Access:https://www.mdpi.com/1420-3049/28/8/3291
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author Raquel Martins
Fátima Fernandes
Patrícia Valentão
author_facet Raquel Martins
Fátima Fernandes
Patrícia Valentão
author_sort Raquel Martins
collection DOAJ
description <i>Solanum betaceum</i> Cav., commonly known as tamarillo or Brazilian tomato, belongs to the Solanaceae family. Its fruit is used in traditional medicine and food crops due to its health benefits. Despite the numerous studies involving the fruit, there is no scientific knowledge about the tamarillo tree leaves. In this work, the phenolic profile of aqueous extract obtained from <i>S. betaceum</i> leaves was unveiled for the first time. Five hydroxycinnamic phenolic acids were identified and quantified, including 3-<i>O</i>-caffeoylquinic acid, 4-<i>O</i>-caffeoylquinic acid, chlorogenic acid, caffeic acid and rosmarinic acid. While the extract displayed no effect on α-amylase, the extract inhibited the activity of α-glucosidase (IC<sub>50</sub> = 1617 mg/mL), and it was particularly effective for human aldose reductase (IC<sub>50</sub> = 0.236 mg/mL): a key enzyme in glucose metabolism. Moreover, the extract exhibited interesting antioxidant properties, such as a potent capacity to intercept the in vitro-generated reactive species O<sub>2</sub><sup>•−</sup> (IC<sub>50</sub> = 0.119 mg/mL) and <sup>•</sup>NO (IC<sub>50</sub> = 0.299 mg/mL), as well as to inhibit the first stages of lipid peroxidation (IC<sub>50</sub> = 0.080 mg/mL). This study highlights the biological potential of <i>S. betaceum</i> leaves. The scarcity of research on this natural resource underscores the need for additional studies in order to fully explore its antidiabetic properties and to promote the value of a species currently at risk of extinction.
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spelling doaj.art-fdb09fa60e7d467f89ebdb3d775623da2023-11-17T20:36:51ZengMDPI AGMolecules1420-30492023-04-01288329110.3390/molecules28083291Unearthing of the Antidiabetic Potential of Aqueous Extract of <i>Solanum betaceum</i> Cav. LeavesRaquel Martins0Fátima Fernandes1Patrícia Valentão2REQUIMTE/LAQV, Laboratório de Farmacognosia, Departamento de Química, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira n° 228, 4050-313 Porto, PortugalREQUIMTE/LAQV, Laboratório de Farmacognosia, Departamento de Química, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira n° 228, 4050-313 Porto, PortugalREQUIMTE/LAQV, Laboratório de Farmacognosia, Departamento de Química, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira n° 228, 4050-313 Porto, Portugal<i>Solanum betaceum</i> Cav., commonly known as tamarillo or Brazilian tomato, belongs to the Solanaceae family. Its fruit is used in traditional medicine and food crops due to its health benefits. Despite the numerous studies involving the fruit, there is no scientific knowledge about the tamarillo tree leaves. In this work, the phenolic profile of aqueous extract obtained from <i>S. betaceum</i> leaves was unveiled for the first time. Five hydroxycinnamic phenolic acids were identified and quantified, including 3-<i>O</i>-caffeoylquinic acid, 4-<i>O</i>-caffeoylquinic acid, chlorogenic acid, caffeic acid and rosmarinic acid. While the extract displayed no effect on α-amylase, the extract inhibited the activity of α-glucosidase (IC<sub>50</sub> = 1617 mg/mL), and it was particularly effective for human aldose reductase (IC<sub>50</sub> = 0.236 mg/mL): a key enzyme in glucose metabolism. Moreover, the extract exhibited interesting antioxidant properties, such as a potent capacity to intercept the in vitro-generated reactive species O<sub>2</sub><sup>•−</sup> (IC<sub>50</sub> = 0.119 mg/mL) and <sup>•</sup>NO (IC<sub>50</sub> = 0.299 mg/mL), as well as to inhibit the first stages of lipid peroxidation (IC<sub>50</sub> = 0.080 mg/mL). This study highlights the biological potential of <i>S. betaceum</i> leaves. The scarcity of research on this natural resource underscores the need for additional studies in order to fully explore its antidiabetic properties and to promote the value of a species currently at risk of extinction.https://www.mdpi.com/1420-3049/28/8/3291<i>S. betaceum</i> leavesphenolic profilediabetesoxidative stress
spellingShingle Raquel Martins
Fátima Fernandes
Patrícia Valentão
Unearthing of the Antidiabetic Potential of Aqueous Extract of <i>Solanum betaceum</i> Cav. Leaves
Molecules
<i>S. betaceum</i> leaves
phenolic profile
diabetes
oxidative stress
title Unearthing of the Antidiabetic Potential of Aqueous Extract of <i>Solanum betaceum</i> Cav. Leaves
title_full Unearthing of the Antidiabetic Potential of Aqueous Extract of <i>Solanum betaceum</i> Cav. Leaves
title_fullStr Unearthing of the Antidiabetic Potential of Aqueous Extract of <i>Solanum betaceum</i> Cav. Leaves
title_full_unstemmed Unearthing of the Antidiabetic Potential of Aqueous Extract of <i>Solanum betaceum</i> Cav. Leaves
title_short Unearthing of the Antidiabetic Potential of Aqueous Extract of <i>Solanum betaceum</i> Cav. Leaves
title_sort unearthing of the antidiabetic potential of aqueous extract of i solanum betaceum i cav leaves
topic <i>S. betaceum</i> leaves
phenolic profile
diabetes
oxidative stress
url https://www.mdpi.com/1420-3049/28/8/3291
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