Development of a portable taste sensor with a lipid/polymer membrane

Yusuke Tahara, Kenichi Nakashi, Ke Ji, Akihiro Ikeda, Kiyoshi Toko

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

We have developed a new portable taste sensor with a lipid/polymer membrane and conducted experiments to evaluate the sensor's performance. The fabricated sensor consists of a taste sensor chip (40 mm × 26 mm × 2.2 mm) with working and reference electrodes and a portable sensor device (80 mm × 25 mm × 20 mm). The working electrode consists of a taste-sensing site comprising a poly(hydroxyethyl)methacrylate (pHEMA) hydrogel layer with KCl as the electrolyte layer and a lipid/polymer membrane as the taste sensing element. The reference electrode comprises a polyvinyl chloride (PVC) membrane layer with a small hole and a pHEMA layer with KCl. The whole device is the size of a USB memory stick, making it suitable for portable use. The sensor's response to tannic acid as the standard astringency substance showed good accuracy and reproducibility, and was comparable with the performance of a commercially available taste sensing system. Thus, it is possible for this sensor to be used for in-field evaluations and it can make a significant contribution to the food industry, as well as in various fields of research.

Original languageEnglish
Pages (from-to)1076-1084
Number of pages9
JournalSensors (Switzerland)
Volume13
Issue number1
DOIs
Publication statusPublished - Jan 2013

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Biochemistry
  • Atomic and Molecular Physics, and Optics
  • Instrumentation
  • Electrical and Electronic Engineering

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    Tahara, Y., Nakashi, K., Ji, K., Ikeda, A., & Toko, K. (2013). Development of a portable taste sensor with a lipid/polymer membrane. Sensors (Switzerland), 13(1), 1076-1084. https://doi.org/10.3390/s130101076