Figure 4
From: The important role of umami taste in oral and overall health
Labial minor salivary gland flow responses to the five tastes. Minor salivary gland flow responses from highest to lowest were monosodium glutamate (umami) > citric acid (sour) > NaCl (salt) = sucrose (sweet) = quinine (bitter). The salivary secretion was expressed as a percentage of the control.