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Optimization of Self-Powered Time Temperature Indicator for the Operation and Performance

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  • URLhttps://db.koreascholar.com/Article/Detail/322045
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한국산업식품공학회 (Korean Society for Food Engineering)
초록

A self-powered time-temperature indicator (TTI) was optimized to enhance the performance of the TTI by modifying a biofuel cell using different immobilization, redox mediators, and status of electrode. The performance of the TTI was measured by output voltage of the TTI. The enzymes and combinations of lacasse mediators (HBT (1-hydroxybenzotriazole), Rupy (Bis-(bipyridine)-(5-aminophenanthroline) ruthenium bis (hexafluorophosphate)), MB (Methylene blue), SDP (4,4- sulfonyldiphenol)) and glucose oxidase mediators (FA (Ferroceneboxaldehyde), DBQ(2,5-dihydroxybenzoquinone), HQS (8-hydroxyquinoline-5sulfonic acid hydrate), FHFP (Ferrocenium hexafluorophosphate)) were immobilized with stabilizers (pyrrole) on a glassy carbon electrode by electrodeposition by applying a square wave, cross-linking and physical immobilization. MWCNTs were used to modify glassy carbon electrodes. MWCNTs coated electrodes produced higher output voltage than uncoated electrodes. The optimum and stable performance of the self-powered TTI was that the output voltage of 64 mV and duration time was 3hr at 25°C, when the combination of Rupy, MB for laccase mediators and HQS, FHFP for glucose oxidase mediators were immobilized on MWCNTs coated electrodes by applying a square wave method. In the application, the concentrations of enzyme and glucose were adjusted to prolong the shelf-life of TTI at much lower output voltage.

저자
  • Do Yeob Kim(Department of Food Science and Biotechnology, Dongguk University Center for Intelligent Agro-Food Packaging (CIFP), Dongguk University)
  • Dong Youl Kim(Department of Food Science and Biotechnology, Dongguk University Center for Intelligent Agro-Food Packaging (CIFP), Dongguk University)
  • Ji Hye Kim(Department of Food Science and Biotechnology, Dongguk University Center for Intelligent Agro-Food Packaging (CIFP), Dongguk University)
  • Meng Jingjing(Department of Food Science and Biotechnology, Dongguk University Center for Intelligent Agro-Food Packaging (CIFP), Dongguk University)
  • Sang Bong Lee(Department of Food Science and Biotechnology, Dongguk University)
  • Jung Hwa Yang(Department of Food Science and Biotechnology, Dongguk University)
  • Seung Won Jung(Department of Food Science and Biotechnology, Dongguk University Center for Intelligent Agro-Food Packaging (CIFP), Dongguk University)
  • Seung Ju Lee(Department of Food Science and Biotechnology, Dongguk University Center for Intelligent Agro-Food Packaging (CIFP), Dongguk University)