Detection of the suppression of saltiness by Umami substances using a taste sensor

Tomomi Nagamori, Kiyoshi Toko, Yukiko Kikkawa, Takehiko Watanabe, Kenichi Endou

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


A multichannel taste sensor, i.e., an electronic tongue, whose transducer is composed of several kinds of lipid/polymer membranes with different characteristics, can detect taste in a manner similar to human gustatory sensation. In this study, we attempted to detect the suppression of saltiness by the umami substance monosodium glutamate (MSG) using a multichannel taste sensor. To quantify the saltiness, a principal component analysis (PCA) was applied to membrane potential data. The saltiness was expressed on the τ scale, which is the relationship between the salty strength perceived by humans and the NaCl concentration, using PCA. It was quantitatively shown that the saltiness of NaCl was weakened by MSG.

Original languageEnglish
Pages (from-to)469-477
Number of pages9
JournalSensors and Materials
Issue number8
Publication statusPublished - 1999

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • General Materials Science


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