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Sensors 2018, 18(6), 1949; https://doi.org/10.3390/s18061949

Preliminary Study on Biosensor-Type Time-Temperature Integrator for Intelligent Food Packaging

Center for Intelligent Agro-Food Packaging (CIFP), Department of Food Science and Biotechnology, Dongguk University, Seoul 10326, Korea
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Received: 19 May 2018 / Revised: 5 June 2018 / Accepted: 12 June 2018 / Published: 15 June 2018
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Abstract

A glucose biosensor was utilized as a platform for the time-temperature integrator (TTI), a device for intelligent food packaging. The TTI system is composed of glucose oxidase, glucose, a pH indicator, and a three-electrode potentiostat, which produces an electrical signal as well as color development. The reaction kinetics of these response variables were analyzed under isothermal conditions. The reaction rates of the electrical current and color changes were 0.0360 ± 0.0020 (95% confidence limit), 0.0566 ± 0.0026, 0.0716 ± 0.0024, 0.1073 ± 0.0028 µA/min, and 0.0187 ± 0.0005, 0.0293 ± 0.0018, 0.0363 ± 0.0012, 0.0540 ± 0.0019 1/min, at 5, 15, 25, and 35 °C, respectively. The Arrhenius activation energy of the current reaction (Eacurrent) was 25.0 ± 1.6 kJ/mol and the Eacolor of the color reactions was 24.2 ± 0.6 kJ/mol. The similarity of these Ea shows agreement in the prediction of food qualities between the electrical signal and color development. Consequently, the function of the new time-temperature integrator system could be extended to that of a biosensor compatible with any electrical utilization equipment. View Full-Text
Keywords: TTI; biosensor; glucose oxidase; electrochemical reaction; intelligent food packaging TTI; biosensor; glucose oxidase; electrochemical reaction; intelligent food packaging
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Mijanur Rahman, A.T.M.; Kim, D.H.; Jang, H.D.; Yang, J.H.; Lee, S.J. Preliminary Study on Biosensor-Type Time-Temperature Integrator for Intelligent Food Packaging. Sensors 2018, 18, 1949.

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