Antioxidant Activity Enhancement Effect of Silver-Ionized Water: Silver Cation Prepared by Electrolysis
In the present study, tap water, alkaline electrolyzed water (AlEW) and tourmaline water (TMW) were used as the electrolytes to generated the silver-ionized water (SIW), AlEW-SIW and TMW-SIW, respectively. The antioxidant properties of the samples containing ascorbic acid (AsA) were investigated by...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-02-01
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| Series: | Antioxidants |
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| Online Access: | https://www.mdpi.com/2076-3921/12/2/467 |
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| author | Tongjiao Wu Santudprom Phacharapan Natsuki Inoue Yoshinori Kamitani |
| author_facet | Tongjiao Wu Santudprom Phacharapan Natsuki Inoue Yoshinori Kamitani |
| author_sort | Tongjiao Wu |
| collection | DOAJ |
| description | In the present study, tap water, alkaline electrolyzed water (AlEW) and tourmaline water (TMW) were used as the electrolytes to generated the silver-ionized water (SIW), AlEW-SIW and TMW-SIW, respectively. The antioxidant properties of the samples containing ascorbic acid (AsA) were investigated by WST-kit method. The results showed that the SOD activity of AsA (2 mmol/L) dissolved in SIW (66.0%) was enhanced by about 8% compared to that of the tap water (57.9%). The SOD activity of the AlEW-SIW solution (77.3%), which was higher than that of the SIW solution, and lower than that of the AlEW solution (83.6%). The SOD activity of the TMW-SIW solution (83.0%) was similar to that of the TMW solution (82.5%). Furthermore, to classify the sample solutions, discriminant analyses were performed based on near infrared (NIR) spectral data, which was consistent with the results of the WST-kit method. The SOD activity of the AlEW-SIW and TMW-SIW solutions decreased slowly with storage time, and their SOD activities were higher than that of AlEW, TMW and the tap water solutions at storage time of 14 days. In summary, AlEW-SIW and TMW-SIW showed similar antioxidant activity enhancement as AlEW and TMW, and they also maintained the stability of the antioxidant activity of AsA during storage. |
| first_indexed | 2024-03-11T09:14:16Z |
| format | Article |
| id | doaj.art-b38a9976271c49efbcdef1d782298584 |
| institution | Directory Open Access Journal |
| issn | 2076-3921 |
| language | English |
| last_indexed | 2024-03-11T09:14:16Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Antioxidants |
| spelling | doaj.art-b38a9976271c49efbcdef1d7822985842023-11-16T18:48:39ZengMDPI AGAntioxidants2076-39212023-02-0112246710.3390/antiox12020467Antioxidant Activity Enhancement Effect of Silver-Ionized Water: Silver Cation Prepared by ElectrolysisTongjiao Wu0Santudprom Phacharapan1Natsuki Inoue2Yoshinori Kamitani3The United Graduate School of Agricultural Sciences, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, JapanThe United Graduate School of Agricultural Sciences, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, JapanGraduate School of Agricultural, Forestry and Fisheries, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, JapanThe United Graduate School of Agricultural Sciences, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, JapanIn the present study, tap water, alkaline electrolyzed water (AlEW) and tourmaline water (TMW) were used as the electrolytes to generated the silver-ionized water (SIW), AlEW-SIW and TMW-SIW, respectively. The antioxidant properties of the samples containing ascorbic acid (AsA) were investigated by WST-kit method. The results showed that the SOD activity of AsA (2 mmol/L) dissolved in SIW (66.0%) was enhanced by about 8% compared to that of the tap water (57.9%). The SOD activity of the AlEW-SIW solution (77.3%), which was higher than that of the SIW solution, and lower than that of the AlEW solution (83.6%). The SOD activity of the TMW-SIW solution (83.0%) was similar to that of the TMW solution (82.5%). Furthermore, to classify the sample solutions, discriminant analyses were performed based on near infrared (NIR) spectral data, which was consistent with the results of the WST-kit method. The SOD activity of the AlEW-SIW and TMW-SIW solutions decreased slowly with storage time, and their SOD activities were higher than that of AlEW, TMW and the tap water solutions at storage time of 14 days. In summary, AlEW-SIW and TMW-SIW showed similar antioxidant activity enhancement as AlEW and TMW, and they also maintained the stability of the antioxidant activity of AsA during storage.https://www.mdpi.com/2076-3921/12/2/467silver-ionized waterantioxidant activityalkaline electrolyzed watertourmaline waternear infrared (NIR) spectroscopy |
| spellingShingle | Tongjiao Wu Santudprom Phacharapan Natsuki Inoue Yoshinori Kamitani Antioxidant Activity Enhancement Effect of Silver-Ionized Water: Silver Cation Prepared by Electrolysis Antioxidants silver-ionized water antioxidant activity alkaline electrolyzed water tourmaline water near infrared (NIR) spectroscopy |
| title | Antioxidant Activity Enhancement Effect of Silver-Ionized Water: Silver Cation Prepared by Electrolysis |
| title_full | Antioxidant Activity Enhancement Effect of Silver-Ionized Water: Silver Cation Prepared by Electrolysis |
| title_fullStr | Antioxidant Activity Enhancement Effect of Silver-Ionized Water: Silver Cation Prepared by Electrolysis |
| title_full_unstemmed | Antioxidant Activity Enhancement Effect of Silver-Ionized Water: Silver Cation Prepared by Electrolysis |
| title_short | Antioxidant Activity Enhancement Effect of Silver-Ionized Water: Silver Cation Prepared by Electrolysis |
| title_sort | antioxidant activity enhancement effect of silver ionized water silver cation prepared by electrolysis |
| topic | silver-ionized water antioxidant activity alkaline electrolyzed water tourmaline water near infrared (NIR) spectroscopy |
| url | https://www.mdpi.com/2076-3921/12/2/467 |
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