Electrochemical Determination of Sesamol in Foods by Square Wave Voltammetry at a Boron-Doped Diamond Electrode

Aslışen, Burak; Koçak, Çağrı Ceylan; Koçak, Süleyman

doi:10.1080/00032719.2019.1650752

Cited by 19 publications

(15 citation statements)

References 36 publications

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“…Electrochemical methods for sesame lignans have recently been established. For instance, voltametric methods for the determination of sesamol directly in sesame oil [ 198 ] and in acidic solutions [ 199 ] were described. Whether these methods can compete with HPLC-MS/MS in routine analysis remains to be seen.…”

Section: Chemistry Of Sesame Lignansmentioning

confidence: 99%

Lignans of Sesame (Sesamum indicum L.): A Comprehensive Review

et al. 2021

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Major lignans of sesame sesamin and sesamolin are benzodioxol--substituted furofurans. Sesamol, sesaminol, its epimers, and episesamin are transformation products found in processed products. Synthetic routes to all lignans are known but only sesamol is synthesized industrially. Biosynthesis of furofuran lignans begins with the dimerization of coniferyl alcohol, followed by the formation of dioxoles, oxidation, and glycosylation. Most genes of the lignan pathway in sesame have been identified but the inheritance of lignan content is poorly understood. Health-promoting properties make lignans attractive components of functional food. Lignans enhance the efficiency of insecticides and possess antifeedant activity, but their biological function in plants remains hypothetical. In this work, extensive literature including historical texts is reviewed, controversial issues are critically examined, and errors perpetuated in literature are corrected. The following aspects are covered: chemical properties and transformations of lignans; analysis, purification, and total synthesis; occurrence in Seseamum indicum and related plants; biosynthesis and genetics; biological activities; health-promoting properties; and biological functions. Finally, the improvement of lignan content in sesame seeds by breeding and biotechnology and the potential of hairy roots for manufacturing lignans in vitro are outlined.

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Section: Chemistry Of Sesame Lignansmentioning

confidence: 99%

Lignans of Sesame (Sesamum indicum L.): A Comprehensive Review

et al. 2021

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“…A conventional tree-electrode electrochemical system was used to investigate the electrochemical behavior of samples [18]. Cyclic voltammetry was performed on an Autolab potentiostatgalvanostat (PGSTAT 101 and PGSTAT 128N) with a three-electrode system.…”

Section: Characterizationmentioning

confidence: 99%

Sol-Jel Tekniği ile Sentezlenmiş Sr0,5Ca0,5WO4 Fosforunda Eu3+ İyonunun Lüminesans, TL Kinetik Parametreler ve Elektrokimyasal Davranışındaki Rolü

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et al. 2021

El-Cezeri Fen Ve Mühendislik Dergisi

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The Eu 3+ doped Sr 0,5 Ca 0,5 WO 4 has been synthesized by the sol-gel method for the first time. The phosphors were analyzed by XRD, SEM, DTA/TG optical absorption spectra, radioluminescence (RL), photoluminescence (PL), and thermoluminescence (TL) spectra. The energy transfer mechanism was determined on Eu 3+ doped Sr 0,5 Ca 0,5 WO 4 phosphor. The XRD results reveal that the samples exhibit a tetragonal scheelite structure. FT-IR spectra provide the proof of scheelite structure with W-O anti-symmetric stretching vibration in [WO 4 ] 2tetrahedrons at 750-910 cm -1 . The Sr 0,5 Ca 0,5 WO 4 phosphor showed a broad emission between 350-750 nm with a maximum of 506 nm. Sr 0,5 Ca 0,5 WO 4 :0.5Eu 3+ phosphor exhibit characteristic emissions of Eu +3 (545, 592, 614, 650, and 700 nm) in the RL spectrum. The host material has excellent energy transfer efficiency for lanthanide ions. The kinetic parameters were calculated by the computerized glow curve deconvolution (CGCD) analysis method. As a result of CGCD, three peaks (E trap :0.74-1.46 eV) for un-doped Sr 0,5 Ca 0,5 WO 4 and five peaks (E trap :0.75-1.28 eV) for Sr 0,5 Ca 0,5 WO 4 : Eu 3+ were determined under main TL glow curve. In the cyclic voltammogram of the doped sample, an oxidation peak of about -0.4 eV, which is thought to be derived from Eu 3+ , was observed. Based on the results, the Sr 0,5 Ca 0,5 WO 4 :Eu +3 phosphors may be potential applicants for LEDs.

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“…The electrochemical activity is thus adjusted to attain, for example, a higher sensitivity and selectivity, besides a lower adsorption . In some instances, BDDEs have been used without any electrochemical pretreatments in the determination of different analytes, with satisfactory analytical results and good repeatability, e. g . However, in most such cases, since comparisons with the electrochemical signals from the same BDDEs when electrochemically pretreated were not reported at all, the question of whether better results could be attained with a CPT‐BDDE or an APT‐BDDE remains unanswered.…”

Section: Electroanalytical Applications Of Electrochemically Pretreatmentioning

confidence: 99%

“…However, in most such cases, since comparisons with the electrochemical signals from the same BDDEs when electrochemically pretreated were not reported at all, the question of whether better results could be attained with a CPT‐BDDE or an APT‐BDDE remains unanswered. In a few of those cases, when a free‐standing BDD was used, the BDDE was simply polished, as first done by Marken et al . ; comparisons between the electrochemical activities for the respective analyte after different pretreatments (polish, PTA or PTC) were performed in two cases, with better results after the polish procedure.…”

Section: Electroanalytical Applications Of Electrochemically Pretreatmentioning

confidence: 99%

“…In a few of those cases, when a free‐standing BDD was used, the BDDE was simply polished, as first done by Marken et al . ; comparisons between the electrochemical activities for the respective analyte after different pretreatments (polish, PTA or PTC) were performed in two cases, with better results after the polish procedure. More extensive such comparisons would be welcome.…”

Section: Electroanalytical Applications Of Electrochemically Pretreatmentioning

confidence: 99%

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Analytical Applications of Electrochemically Pretreated Boron‐Doped Diamond Electrodes

et al. 2020

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The several outstanding properties of boron‐doped diamond electrodes (BDDEs) have allowed their application for various purposes, among them electrochemical sensing. However, the electrochemical response of many redox species on BDDEs can be strongly dependent on whether their surfaces are predominantly hydrogen‐ (HT) or oxygen‐terminated (OT). Fortuitously, electrochemical pretreatments themselves can be used to enrich in situ the BDEE surface in one or the other type of termination. The surface of a cathodically pretreated BBDE (CPT‐BDDE) becomes enriched in HTs, whereas that of an anodically pretreated BDDE (APT‐BDEE) becomes enriched in OTs. Thus, when suitable, the electrochemical activity of a BDDE for a given analyte may be tuned by electrochemical pretreatments, yielding enhanced sensing properties. The main purpose of this review is the compilation and discussion of papers published after 2009 reporting on electroanalytical applications based on a CPT‐BDDE or an APT‐BDDE. Procedures to perform proper electrochemical pretreatments are also discussed.

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Electrochemical Determination of Sesamol in Foods by Square Wave Voltammetry at a Boron-Doped Diamond Electrode

Cited by 19 publications

References 36 publications

Lignans of Sesame (Sesamum indicum L.): A Comprehensive Review

Lignans of Sesame (Sesamum indicum L.): A Comprehensive Review

Sol-Jel Tekniği ile Sentezlenmiş Sr0,5Ca0,5WO4 Fosforunda Eu3+ İyonunun Lüminesans, TL Kinetik Parametreler ve Elektrokimyasal Davranışındaki Rolü

Analytical Applications of Electrochemically Pretreated Boron‐Doped Diamond Electrodes

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