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Table 3 Concentration of organic acids and furfural derivatives retained in the pretreatment liquors of straw derived from different cultivars

From: Effect of Brassica napus cultivar on cellulosic ethanol yield

Cultivar name Volume (L) Concentration (g/L pretreated liquor)
   Acetic Formic 2FA HMF
Canard 6.60 2.86 2.02 0.51 0.15
Canberra x Courage 7.08 2.68 2.04 0.54 0.16
Darmor 7.13 2.75 2.11 0.46 0.11
Erglu 6.95 2.72 1.97 0.32 0.15
Hansen x Gaspard 6.96 2.35 1.77 0.49 0.12
Judzae 7.00 2.25 1.81 0.37 0.11
Licrown x Express 6.25 3.20 2.08 0.50 0.18
Madrical x Recital 6.50 2.76 2.02 0.42 0.13
Major 6.84 2.59 1.91 0.34 0.14
POH285, Bolko 7.00 3.13 2.18 0.46 0.18
Quinta 6.76 2.91 1.95 0.67 0.20
Ramses 6.55 2.68 1.60 0.45 0.23
Sensation NZ 7.15 2.43 1.96 0.28 0.11
Shannon x Winner 6.85 3.40 1.92 0.39 0.26
Slapka Slapy S3 6.92 3.08 1.97 0.41 0.20
Slovenska Krajova 6.78 2.39 1.50 0.76 0.17
York 6.18 3.23 2.08 0.43 0.23
Mean 6.79 2.79 1.93 0.46 0.17
Range 0.97 1.15 0.68 0.48 0.15
Range (% mean) 14 41 35 105 90
  1. The abundance of all compounds in the hydrolysis liquors differed significantly between cultivars (ANOVA, p < 0.001). Values were calculated with a RSD of 1.9, 1.7, 1.9 and 5.4 % for acetic acid, formic acid, 2FA and HMF, respectively
  2. Acetic acetic acid, Formic formic acid, 2FA 2-furfuraldehyde, HMF hydroxymethylfurfural