Skip to main content

Table 2 GC analysis of pyrolytic aqueous condensate (PAC) treated with different combinations of detoxification methods

From: Detoxification of a pyrolytic aqueous condensate from wheat straw for utilization as substrate in Aspergillus oryzae DSM 1863 cultivations

Combinationa c (PAC compound) [g/L]
Acetate Acetol 2-Cyclopenten-1-one Furfural Guaiacol Phenol
Untreated 35.17 ± 0.13 33.58 ± 1.86 3.42 ± 0.13 2.63 ± 0.15 1.15 ± 0.04 0.58 ± 0.01
Growth limitb > 70 15 0.0625 0.3 1 0.7
RE 36.06 6.89 0.09 0.21 0.16 0.06
RE + OL 39.97 3.95 0.08 0.00 0.16 0.06
RE + OL + AC 39.02 2.96 0.00 0.00 0.14 0.00
RE 35.17 6.34 0.09 0.20 0.15 0.06
RE + AC 35.40 5.06 0.00 0.00 0.14 0.00
RE + AC + OL 40.07 3.54 0.00 0.00 0.00 0.00
OL 42.56 6.61 0.44 0.12 0.48 0.41
OL + RE 42.83 2.76 0.11 0.23 0.22 0.09
OL + RE + AC 43.49 2.10 0.07 0.15 0.14 0.11
OL 39.92 6.01 0.45 0.12 0.48 0.41
OL + AC 42.40 5.79 0.30 0.04 0.21 0.06
OL + AC + RE 42.41 1.96 0.08 0.00 0.15 0.00
AC 35.81 21.64 1.62 0.40 0.16 0.00
AC + RE 34.59 5.69 0.24 0.10 0.14 0.00
AC + RE + OL 44.43 3.58 0.16 0.00 0.13 0.00
AC 35.43 21.93 1.64 0.40 0.14 0.00
AC + OL 41.84 14.15 0.61 0.05 0.14 0.00
AC + OL + RE 41.22 6.18 0.12 0.00 0.00 0.00
  1. aAll possible combinations of rotary evaporation (RE); overliming (OL), and activated carbon treatments (AC) were performed
  2. bDetermined by Dörsam et al. [19] as % (w/v). The concentration was converted into g/L assuming the density of water [2]. The only exception was acetate, for which, according to the results of Kövilein et al. [42], no growth limit was determined so far