Table 3. Changes in GABA content during lactic acid fermentation of
Phellinus linteus
extract
Free amino acid (mg/100 g)
Fermentation time (days)
0
9
Glutamic acid
6,175.50±20.73
1)
1,266.46±15.68
GABA
21.18±0.99
2,412.34±16.17
Values are mean±SD (n=3).