The chemoreception of tastants takes
place in the apical side of the TRC.
According to the recent proposition of Richard Mattes from
Purdue University (USA) concerning the minimal elements
required to constitute a primary taste quality (i.e. effectivstimulus, speci
fi
c reception and signaling, involvement of gusta-
tory pathway, physiological impacts, and identi
fi
able sensation
[5]
), it appears that
“
Fat
”
might be eligible