Effect of bitter substances on a model membrane system of taste reception

Satoru Iiyama, Kiyoshi Toko, Kaoru Yamafuji

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43 Citations (Scopus)


The effect of bitter substances on the self-sustained electric oscillation of a DOPH (dioleyl phosphate)-Millipore membrane was investigated as a model system of taste reception. Caffeine and theobromine, having higher taste thresholds, had slight effect, but quinine, strychnine and nicotine, exhibiting strong bitterness, increased the frequency of the oscillation. The mode of action of bitter substances on the DOPH-Millipore membrane in the non-oscillatory state suggested that they cause the receptor potential by a change in the phase boundary potential. The intensity of action on the electric potential was associated with the threshold values of bitterness.

Original languageEnglish
Pages (from-to)2709-2714
Number of pages6
JournalAgricultural and Biological Chemistry
Issue number11
Publication statusPublished - Nov 1986
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Biochemistry,Genetics and Molecular Biology
  • General Agricultural and Biological Sciences


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