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Journal of Wood Science

Official Journal of the Japan Wood Research Society

Table 3 Lignin and sugar contents obtained from the substrates and dry weight changes

From: Effect of steam treatment for the enzymic saccharification of waste mushroom medium after cultivation of shiitake mushroom (Lentinula edodes) and enokitake mushroom (Flammulina velutipes)

Substratea

Component [% (w/w)]b

Changes in dry weight [% (w/w-MSe or MEf)]

Acid-insoluble lignin

Acid-soluble lignin

β-Glucan

Xylan

Minor Sugarsc

α-Glucan

Other componentsd

MS

24.8 ± 0.5 de

3.3 ± 0.5 a

28.5 ± 1.8 cd

13.7 ± 0.6 i

6.2 ± 0.2 abc

4.9 ± 0.5

l8.7 ± 1.5

100.0 ± 1.1

StmMS

39.0 ± 1.5 g

4.6 ± 0.2 b

33.6 ± 1.8 e

4.7 ± 0.9 a

4.4 ± 0.6 a

2.4 ± 0.2

11.3 ± 1.1

82.0 ± 0.2

WS

13.8 ± 0.4 ab

6.4 ± 0.1 cd

26.2 ± 1.8 bc

9.5 ± 0.5 def

10.1 ± 0.8 e

–

34.1 ± 2.4

45.0 ± 0.4

StmWS

27.0 ± 0.1 e

6.1 ± 0.1 c

34.4 ± 3.1 e

6.9 ± 0.7 bc

6.3 ± 1.3 abc

–

19.2 ± 2.5

38.7 ± 0.7

SS

11.8 ± 0.4 a

6.9 ± 0.3 de

33.7 ± 3.0 e

11.5 ± 1.2 fgh

8.8 ± 1.2 de

–

27.3 ± 3.5

40.2 ± 0.9

StmSS

23.5 ± 2.4 d

6.4 ± 0.4 cd

32.1 ± 0.2 de

6.2 ± 0.8 ab

8.5 ± 0.1 de

–

23.4 ± 1.7

35.2 ± 1.4

ME

16.6 ± 0.9 bc

6.9 ± 0.1 de

19.3 ± 1.0 a

11.6 ± 0.9 fghi

7.2 ± 0.4 cd

6.1 ± 0.5

32.4 ± 1.2

100.0 ± 2.3

StmME

26.4 ± 1.0 de

7.6 ± 0.1 ef

18.3 ± 1.2 a

9.0 ± 0.2 cd

6.4 ± 0.4 bc

6.7 ± 0.4

25.6 ± 1.3

91.0 ± 0.5

WE

19.6 ± 0.4 bc

6.9 ± 0.2 de

18.5 ± 0.4 a

12.9 ± 0.6 ghi

6.0 ± 0.5 abc

–

36.2 ± 0.8

52.8 ± 3.7

StmWE

30.8 ± 0.9 f

7.7 ± 0.2 f

22.5 ± 1.0 ab

9.3 ± 0.2 de

4.7 ± 0.1 ab

–

24.9 ± 1.9

43.3 ± 0.1

  1. Values represent means ± SD of 3 replicates except for changes in dry weight of WE. The value of change in the dry weight of WE represents the mean ± SD of 31 replicates
  2. Numbers with different letters indicate significant differences between substrates (P < 0.05) according to the Tukey–Kramer test
  3. aSee Table 1
  4. bPercentage of the weights of lignin and sugars relative to the dry weight of each substrate
  5. cTotal galactan, arabinan, and mannan contents
  6. dDry weight minus the sum of acid-insoluble and acid-soluble lignin, β-glucan, xylan, minor sugars, and α-glucan
  7. ePercentage of the dry weights of StmMS, WS, StmWS, SS, and StmSS after treatment (shown in Table 1) relative to the dry weight of MS
  8. fPercentage of the dry weights of StmME, WE, and StmWE after treatment (shown in Table 1) relative to the dry weight of ME
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