Rapid Voltammetric Screening Method for the Assessment of Bioflavonoid Content Using the Disposable Bare Pencil Graphite Electrode

Hesperidin (HESP) is a plant bioflavonoid found in various nutritional and medicinal products. Many of its multiple health benefits rely on the compound’s antioxidant ability, which is due to the presence of oxidizable hydroxyl groups in its structure. Therefore, the present study aimed to investiga...

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Autores principales: Iulia Gabriela David, Nimet Numan, Mihaela Buleandră, Dana-Elena Popa, Simona Carmen Lițescu, Sorin Riga, Adela Magdalena Ciobanu
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Acceso en línea:https://doaj.org/article/b682389130d34e8a901efc27ebc97dda
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spelling oai:doaj.org-article:b682389130d34e8a901efc27ebc97dda2021-11-25T17:13:43ZRapid Voltammetric Screening Method for the Assessment of Bioflavonoid Content Using the Disposable Bare Pencil Graphite Electrode10.3390/chemosensors91103232227-9040https://doaj.org/article/b682389130d34e8a901efc27ebc97dda2021-11-01T00:00:00Zhttps://www.mdpi.com/2227-9040/9/11/323https://doaj.org/toc/2227-9040Hesperidin (HESP) is a plant bioflavonoid found in various nutritional and medicinal products. Many of its multiple health benefits rely on the compound’s antioxidant ability, which is due to the presence of oxidizable hydroxyl groups in its structure. Therefore, the present study aimed to investigate the electrochemical behavior of HESP at a cheap, disposable pencil graphite electrode (PGE) in order to develop rapid and simple voltammetric methods for its quantification. Cyclic voltammetric investigations emphasized a complex electrochemical behavior of HESP. The influence of the electrode material, solution stability, supporting electrolyte pH, and nature were examined. HESP main irreversible, diffusion-controlled oxidation signal obtained at H type PGE in Britton Robinson buffer pH 1.81 was exploited for the development of a differential pulse voltammetry (DPV) quantitative analysis method. The quasi-reversible, adsorption-controlled reduction peak was used for HESP quantification by differential pulse adsorptive stripping voltammetry (DPAdSV). The linear ranges of DPV and DPAdSV were 1.00 × 10<sup>−7</sup>–1.20 × 10<sup>−5</sup> and 5.00 × 10<sup>−8</sup>–1.00 × 10<sup>−6</sup> mol/L with detection limits of 8.58 × 10<sup>−8</sup> and 1.90 × 10<sup>−8</sup> mol/L HESP, respectively. The DPV method was applied for the assessment of dietary supplements bioflavonoid content, expressed as mg HESP.Iulia Gabriela DavidNimet NumanMihaela BuleandrăDana-Elena PopaSimona Carmen LițescuSorin RigaAdela Magdalena CiobanuMDPI AGarticlepencil graphite electrodevoltammetryhesperidinbioflavonoidsantioxidantdietary supplementsBiochemistryQD415-436ENChemosensors, Vol 9, Iss 323, p 323 (2021)
institution DOAJ
collection DOAJ
language EN
topic pencil graphite electrode
voltammetry
hesperidin
bioflavonoids
antioxidant
dietary supplements
Biochemistry
QD415-436
spellingShingle pencil graphite electrode
voltammetry
hesperidin
bioflavonoids
antioxidant
dietary supplements
Biochemistry
QD415-436
Iulia Gabriela David
Nimet Numan
Mihaela Buleandră
Dana-Elena Popa
Simona Carmen Lițescu
Sorin Riga
Adela Magdalena Ciobanu
Rapid Voltammetric Screening Method for the Assessment of Bioflavonoid Content Using the Disposable Bare Pencil Graphite Electrode
description Hesperidin (HESP) is a plant bioflavonoid found in various nutritional and medicinal products. Many of its multiple health benefits rely on the compound’s antioxidant ability, which is due to the presence of oxidizable hydroxyl groups in its structure. Therefore, the present study aimed to investigate the electrochemical behavior of HESP at a cheap, disposable pencil graphite electrode (PGE) in order to develop rapid and simple voltammetric methods for its quantification. Cyclic voltammetric investigations emphasized a complex electrochemical behavior of HESP. The influence of the electrode material, solution stability, supporting electrolyte pH, and nature were examined. HESP main irreversible, diffusion-controlled oxidation signal obtained at H type PGE in Britton Robinson buffer pH 1.81 was exploited for the development of a differential pulse voltammetry (DPV) quantitative analysis method. The quasi-reversible, adsorption-controlled reduction peak was used for HESP quantification by differential pulse adsorptive stripping voltammetry (DPAdSV). The linear ranges of DPV and DPAdSV were 1.00 × 10<sup>−7</sup>–1.20 × 10<sup>−5</sup> and 5.00 × 10<sup>−8</sup>–1.00 × 10<sup>−6</sup> mol/L with detection limits of 8.58 × 10<sup>−8</sup> and 1.90 × 10<sup>−8</sup> mol/L HESP, respectively. The DPV method was applied for the assessment of dietary supplements bioflavonoid content, expressed as mg HESP.
format article
author Iulia Gabriela David
Nimet Numan
Mihaela Buleandră
Dana-Elena Popa
Simona Carmen Lițescu
Sorin Riga
Adela Magdalena Ciobanu
author_facet Iulia Gabriela David
Nimet Numan
Mihaela Buleandră
Dana-Elena Popa
Simona Carmen Lițescu
Sorin Riga
Adela Magdalena Ciobanu
author_sort Iulia Gabriela David
title Rapid Voltammetric Screening Method for the Assessment of Bioflavonoid Content Using the Disposable Bare Pencil Graphite Electrode
title_short Rapid Voltammetric Screening Method for the Assessment of Bioflavonoid Content Using the Disposable Bare Pencil Graphite Electrode
title_full Rapid Voltammetric Screening Method for the Assessment of Bioflavonoid Content Using the Disposable Bare Pencil Graphite Electrode
title_fullStr Rapid Voltammetric Screening Method for the Assessment of Bioflavonoid Content Using the Disposable Bare Pencil Graphite Electrode
title_full_unstemmed Rapid Voltammetric Screening Method for the Assessment of Bioflavonoid Content Using the Disposable Bare Pencil Graphite Electrode
title_sort rapid voltammetric screening method for the assessment of bioflavonoid content using the disposable bare pencil graphite electrode
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/b682389130d34e8a901efc27ebc97dda
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