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Development of LB film taste sensor for beer degradation evaluation and its physical properties
Author(s) -
Yazawa Masayoshi,
Takahashi Kazunari,
Uchida Hidekazu,
Hasegawa Yuki
Publication year - 2019
Publication title -
electronics and communications in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.131
H-Index - 13
eISSN - 1942-9541
pISSN - 1942-9533
DOI - 10.1002/ecj.12219
Subject(s) - degradation (telecommunications) , taste , degree (music) , materials science , electrode , sensitivity (control systems) , chemistry , metal , chemical engineering , analytical chemistry (journal) , computer science , chromatography , electronic engineering , food science , acoustics , engineering , metallurgy , physics , telecommunications
Abstract In general, beer degradation is evaluated by sensory test; however, it depends on the subjectivity of an inspector. Therefore, it is highly required that an objective evaluation method is developed. It has been clarified that the degradation degree of beer proceeds mainly by oxidation of components derived from malt and formation of nonelectrolyte trans‐2‐nonenal. In this study, we developed LB film taste sensor using metal complex for evaluating the degradation degree of beer with trans‐2‐nonenal concentrations. In addition, the physical properties of three metal electrodes and sensing film surface were evaluated with AFM and FT‐IR, and these results and the sensor response characteristics were compared and discussed for improving the sensitivity as a sensor for beer degradation evaluation.