Based on the taste characteristics of free amino acids, Komata
(1969) suggested that these components could be tabulated into
several classes. L-Aspartic and L-glutamic acid were MSG-like components,
which gave the most mushroom taste (Tsai et al., 2007),
and they also have the characteristics of umami taste. It could be
seen from Table 2 that the content of the MSG-like components
was in the range of 6.33–10.5 mg/g dry weight, higher than those
of sweet components (3.55–6.42 mg/g dry weight), but lower than
those of bitter components (11.6–28.0 mg/g dry weight). Similar
result was also reported by other researchers (Tsai et al., 2007).