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PANI sensor for monitoring the oxidative degradation of wine using cyclic voltammetry
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| Title: | PANI sensor for monitoring the oxidative degradation of wine using cyclic voltammetry |
| Authors: | Begum, Parvin Browse this author | | Yang, Liu Browse this author | | Morozumi, Tatsuya Browse this author →KAKEN DB | | Sone, Teruo Browse this author →KAKEN DB | | Kawaguchi, Toshikazu Browse this author →KAKEN DB |
| Keywords: | Polyaniline sensor | | Wine | | Cyclic voltammetry | | Degradation of wine |
| Issue Date: | 15-Jul-2023 |
| Journal Title: | Food Chemistry |
| Volume: | 414 |
| Start Page: | 135740 |
| Publisher DOI: | 10.1016/j.foodchem.2023.135740 |
| Abstract: | Redox species in wine are altered by pH and some wines are easily degraded due to oxidation and sulfur dioxide (SO2) reduction. There is a need for quick, easy, simple, and economical methodologies for pH and wine-oxidized products (acetaldehyde) analysis. This study aimed to measure pH and degradation of wines that were elec-trochemically analyzed using polyaniline (PANI) sensor. Gas chromatography (GC) and fourier transform infrared spectrometer (FT-IR) were also used. Electrochemical analysis showed that oxidation was accelerated and peak currents (Ip,a) and potentials (Ep,a) shifted to negative direction due to acetaldehyde formation. PANI sensor achieved a limit of detection (LOD) of 7 x 10-1 ppm and a sensitivity of 5.20 mu A ppm-1 cm-2. Acetal-dehyde formation was confirmed by GC (30%) and FT-IR spectra at 1647 cm-1 to the C--O vibration of aldehyde. These results suggested that acetaldehyde degraded the taste of wine after remaining open. |
| Rights: | © 2023. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ | | https://creativecommons.org/licenses/by-nc-nd/4.0/ |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/92751 |
| Appears in Collections: | 環境科学院・地球環境科学研究院 (Graduate School of Environmental Science / Faculty of Environmental Earth Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 川口 俊一
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