Table 2 Bioactive substance content in crop medium, G. lucidum-fermented powder and its various extracts

Total glucan (g/100 g)

6.97 ± 0.65 ^d

36.80 ± 0.90 ^b

6.27 ± 0.06 ^d

20.13 ± 0.36 ^c

60.73 ± 0.98 ^a

α-glucan (g/100 g)

3.42 ± 0.05 ^d

17.13 ± 0.73 ^a

4.39 ± 0.24 ^c

4.11 ± 0.24 cd

15.54 ± 0.36 ^b

β-glucan (g/100 g)

3.55 ± 0.70 ^d

19.67 ± 1.59 ^b

1.88 ± 0.22 ^e

16.02 ± 0.30 ^c

45.19 ± 1.19 ^a

Triterpenes (mg/g)

1.43 ± 0.20 ^e

10.80 ± 0.20 ^d

16.39 ± 0.87 ^b

20.30 ± 0.24 ^a

12.25 ± 0.72 ^c

GABA (mg/g)

0.62 ± 0.01 ^d

1.34 ± 0.04 ^c

1.85 ± 0.04 ^a

1.40 ± 0.03 ^b

ND

Peptide content (mg/g)

0.15 ± 0.01 ^b

0.12 ± 0.03 ^b

0.20 ± 0.03 ^a

0.04 ± 0.02 ^c

0.02 ± 0.01 ^c

Phenolics (mg GAE/g)

6.97 ± 0.11 ^e

13.52 ± 0.78 ^d

28.40 ± 0.90 ^a

26.60 ± 0.62 ^b

23.53 ± 0.74 ^c

Flavonoids

(mg QE/g)

ND

0.86 ± 0.40 ^c

3.08 ± 0.04 ^a

2.04 ± 0.12 ^b

1.68 ± 0.36 ^b