Expressions of multiple umami taste receptors in oral and gastrointestinal tissues, and umami taste synergism in chickens

Yuta Yoshida, Yuko Kawabata, Fuminori Kawabata, Shotaro Nishimura, Shoji Tabata

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Umami taste is one of the five basic taste qualities, along with sweet, bitter, sour, and salty, and is elicited by some l-amino acids and their salts, including monopotassium l-glutamate (MPG). The unique characteristic of umami taste is that it is synergistically enhanced by 5′-ribonucleotides such as inosine 5′-monophosphate (IMP). Unlike the other four basic taste qualities, the presence of umami taste sense in avian species is not fully understood. In this study, we demonstrated the expression of multiple umami taste receptor candidates in oral and gastrointestinal tract tissues in chickens using RT-PCR analysis. We first showed the metabotropic glutamate receptors (mGluRs) expressed in these tissues. Furthermore, we examined the preference for umami taste in chickens, focusing on the synergistic effect of umami taste as determined by the two-feed choice test. We concluded that chickens preferred feed containing both added MPG and added IMP over feeds containing either added MPG or added IMP alone and over the control feed. These results suggest that the umami taste sense and synergism are conserved in chickens.

Original languageEnglish
Pages (from-to)346-349
Number of pages4
JournalBiochemical and Biophysical Research Communications
Volume466
Issue number3
DOIs
Publication statusPublished - Oct 23 2015

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Inosine
Glutamic Acid
Chickens
Tissue
Ribonucleotides
Inosine Monophosphate
Metabotropic Glutamate Receptors
Salts
Amino Acids
Gastrointestinal Tract
Polymerase Chain Reaction

All Science Journal Classification (ASJC) codes

  • Biophysics
  • Biochemistry
  • Molecular Biology
  • Cell Biology

Cite this

Expressions of multiple umami taste receptors in oral and gastrointestinal tissues, and umami taste synergism in chickens. / Yoshida, Yuta; Kawabata, Yuko; Kawabata, Fuminori; Nishimura, Shotaro; Tabata, Shoji.

In: Biochemical and Biophysical Research Communications, Vol. 466, No. 3, 23.10.2015, p. 346-349.

Research output: Contribution to journalArticle

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