Electrochemical Determination of the Antioxidant Capacity, Total Phenolics, and Ascorbic Acid in Fruit and Vegetables by Differential Pulse Voltammetry (DPV) with a p-Toluene Sulfonic Acid Modified Glassy Carbon Electrode (TSA/GCE)

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dc.authoridKuyumcu Savan, Ebru/0000-0002-8851-0907
dc.authoridkarabulut, ihsan/0000-0002-9014-8863
dc.authorwosidKuyumcu Savan, Ebru/E-3430-2019
dc.authorwosidkarabulut, ihsan/ABG-7556-2020
dc.contributor.authorKoc, Tugca Bilenler
dc.contributor.authorSavan, Ebru Kuyumcu
dc.contributor.authorKarabulut, Ihsan
dc.date.accessioned2024-08-04T20:53:11Z
dc.date.available2024-08-04T20:53:11Z
dc.date.issued2023
dc.departmentİnönü Üniversitesien_US
dc.description.abstractThe determination of antioxidant capacity, total phenolics, and ascorbic acid using accurate, efficient, low cost, and rapid methods has great analytical importance. The antioxidant capacity, total phenolics, and ascorbic acid content of apricots, arugula, banana, cranberries, spinach, and strawberries were investigated with an electrochemical approach and examined for compatibility with conventional methods. The antioxidant activity was determined by ABTS and DPPH assays. The total phenolic content was determined by the Folin Ciocalteu method and ascorbic acid was quantified by high-performance liquid chromatography (HPLC). In order to perform sensitive and simultaneous electrochemical measurements, the surface of a glassy carbon electrode (GCE) was modified by electropolymerization with p-toluene sulfonic acid (TSA). The TSA/GCE modified sensor was used for the first time for the determination of antioxidant capacity and total phenolic content. The surface of the modified sensor was characterized by cyclic voltammetry and scanning electron microscopy. The TSA/GCE was linearly correlated with the differential pulse voltammetry (DPV) for Trolox and gallic acid in 0.1M NaNO3 and ascorbic acid in pH 7.4 phosphate buffer. Electrochemical methods offer a promising alternative for the determination of antioxidant capacity and total phenolic content due to their simplicity, rapid response, low cost, sensitivity, and reproducibility.en_US
dc.description.sponsorshipInonu University, Directorate for Scientific Research, Turkey [FCD-2020-2074]en_US
dc.description.sponsorshipThis study was supported by Inonu University, Directorate for Scientific Research, Turkey (Project Number FCD-2020-2074).en_US
dc.identifier.doi10.1080/00032719.2022.2144344
dc.identifier.endpage894en_US
dc.identifier.issn0003-2719
dc.identifier.issn1532-236X
dc.identifier.issue6en_US
dc.identifier.scopus2-s2.0-85142151289en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage881en_US
dc.identifier.urihttps://doi.org/10.1080/00032719.2022.2144344
dc.identifier.urihttps://hdl.handle.net/11616/101001
dc.identifier.volume56en_US
dc.identifier.wosWOS:000882918300001en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherTaylor & Francis Incen_US
dc.relation.ispartofAnalytical Lettersen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectAntioxidant capacityen_US
dc.subjectascorbic aciden_US
dc.subjectdifferential pulse voltammetry (DPV)en_US
dc.subjectp-toluene sulfonic acidmodified glassy carbon electrode (TSA/GCE)en_US
dc.subjecttotal phenolic contenten_US
dc.subjectvoltammetryen_US
dc.titleElectrochemical Determination of the Antioxidant Capacity, Total Phenolics, and Ascorbic Acid in Fruit and Vegetables by Differential Pulse Voltammetry (DPV) with a p-Toluene Sulfonic Acid Modified Glassy Carbon Electrode (TSA/GCE)en_US
dc.typeArticleen_US

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