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Journal of Wood Science

Official Journal of the Japan Wood Research Society

Table 3 Results of the elemental analysis

From: Fuel and material utilization of a waste shiitake (Lentinula edodes) mushroom bed derived from hardwood chips I: characteristics of calorific value in terms of elemental composition and ash content

 

Air-dry base content (%)

Oven-dry base content (%)*

MCd

C

H

N

C

H

N

O

Wood chip

9.2

44.68 (0.33)

5.96 (0.02)

–

48.79 (0.36)

5.49 (0.02)

0.16 (0.02)

44.89 (0.38)

Waste bed

        

 Inside

9.4

40.98 (0.46)

5.62 (0.06)

–

44.84 (0.50)

5.10 (0.06)

0.53 (0.02)

42.79 (0.55)

 Skin

13.6

40.70 (0.28)

5.30 (0.01)

–

46.24 (0.31)

4.51 (0.01)

1.57 (0.01)

40.59 (0.32)

 Whole

–

–

–

–

44.94

5.05

0.62

42.60

Mycelium

9.7

41.41 (0.06)

6.39 (0.03)

2.07 (0.09)

45.41 (0.07)

5.93 (0.03)

2.27 (0.09)

42.99 (0.20)

  1. Data are shown as a mean of three replicate tests; values in parenthesis show standard deviations
  2. Samples for nitrogen contents other than the mycelium were tested at an oven dry state
  3. * Oven-dry-base C (%) = C '(%) × (100 + MCd)/100
  4. H (%) = H '(%) × (100+MCd)/100 − MCd×2/18;
  5. N (%) = N '(%) × (100+MCd)/100
  6. where, C '(%), H '(%), and N '(%) are the air-dry-base carbon, hydrogen and nitrogen percentages, respectively. MCd: dry-base moisture content
  7. O (%) = 100 − (C (%) + H (%) + N (%) + Ash content (%))
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