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Table 1 Quantity of organic acid held in the pretreatment liquor, expressed as g per kg of original straw

From: Comparison of saccharification and fermentation of steam exploded rice straw and rice husk

 Steam explosion temperature (°Ca) Formic Acetic 5-HMF 2-FA
180
 Straw 17.30 ± 0.34 11.76 ± 0.25 1.34 ± 0.00 1.80 ± 0.14
 Husk 3.57 ± 0.05 2.52 ± 0.07 0.51 ± 0.05 0.41 ± 0.00
190
 Straw 16.56 ± 0.05 10.21 ± 0.06 1.21 ± 0.04 2.07 ± 0.07
 Husk 8.12 ± 0.16 8.06 ± 0.06 0.88 ± 0.02 2.19 ± 0.00
200
 Straw 16.60 ± 0.94 9.37 ± 0.66 1.50 ± 0.08 1.43 ± 0.08
 Husk 6.96 ± 0.41 8.15 ± 0.81 1.18 ± 0.05 3.21 ± 0.51
210
 Straw 15.05 ± 0.30 9.78 ± 0.11 1.30 ± 0.04 1.19 ± 0.04
 Husk 6.12 ± 2.40 8.24 ± 2.57 1.58 ± 0.33 2.69 ± 0.78
220
 Straw 13.60 ± 0.69 8.26 ± 0.41 0.99 ± 0.08 0.75 ± 0.03
 Husk 6.87 ± 0.03 11.07 ± 0.04 2.58 ± 0.00 2.56 ± 0.02
230
 Straw 1.81 ± 0.09 1.77 ± 0.05 0.35 ± 0.00 0.37 ± 0.02
 Husk N.D. N.D. N.D. N.D.
  1. aResidence time in all cases was 10 min