https://scholars.lib.ntu.edu.tw/handle/123456789/626141
標題: | Rapid microfluidic analysis detection system for sodium dehydroacetate in foods | 作者: | Chen K.-H Liu C.-C Lu S.-Y Chen S.-J FUU SHEU Fu L.-M. |
關鍵字: | Colorimetric; Dairy product; Microfluidic; Paper-based; Sodium dehydroacetate | 公開日期: | 2022 | 卷: | 427 | 來源出版物: | Chemical Engineering Journal | 摘要: | Sodium dehydroacetate (NADH) has good antibacterial effects and is widely used as a preservative in dairy products. However, NADH is toxic in large amounts, so it must be added to food in accordance with regulations. Accordingly, the current study has developed a microfluidic analysis detection (MAD) system for the determination of NADH in foods incorporating a microfluidic PMMA-paper chip and a smart analysis device. In this system, the extracted NADH sample is dropped into the sample chamber of the microfluidic PMMA-paper chip and is then wicking/filtering through paper strips and transferred to a detection zone embedded with Fe-Alum reagent. The chip is heated at 35 °C for 5 min to produce a compound reaction and the color compound image acquired by a camera is then transmitted wirelessly to a smartphone, where the NADH concentration is obtained by the intensity inversion of RGB analysis. A standard calibration curve is determined using NADH control samples with concentrations in the range of 30–5000 ppm. The feasibility of the proposed MAD system is then evaluated by analyzing the NADH concentrations of 15 commercial dairy products. It is shown that the measured values deviate from those obtained using an official high performance liquid chromatography (HPLC) method by no more than 5.0%. © 2021 Elsevier B.V. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85112583596&doi=10.1016%2fj.cej.2021.131530&partnerID=40&md5=3b3a5cb25b67146d1aa5b7d05f448f8e https://scholars.lib.ntu.edu.tw/handle/123456789/626141 |
ISSN: | 13858947 | DOI: | 10.1016/j.cej.2021.131530 | SDG/關鍵字: | Chemical reactions; Colorimetry; Dairy products; High performance liquid chromatography; Paper; Sodium; 'current; Analysis detection; Antibacterial effects; Detection system; Detection zones; Large amounts; Microfluidic analysis; Paper-based; Sodium dehydroacetate; Wicking; Microfluidics |
顯示於: | 園藝暨景觀學系 |
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