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Official Journal of the Japan Wood Research Society

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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 (%))