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Table 2 Effect of detoxification on organic acid removal

From: Effect of overliming and activated carbon detoxification on inhibitors removal and butanol fermentation of poplar prehydrolysates

Compound name

Organic acid removal percentage (%)

Overliming

5.0% AC

Overliming + 5.0% AC

Aliphatic acids

Formic acid

8.0

14.0

17.0

Acetic acid

0.0

0.0

0.0

Levulinic acid

5.0

6.0

10.0

Phenolic acids

Benzoic acid

32.2

49.5

68.2

Cinnamic acid

74.7

100.0

100.0

Dihydroxybenzoic acid

14.0

100.0

100.0

Coumaric acid

1.1

100.0

100.0

Vanillic acid

32.6

85.7

93.9

Homovanillic acid

62.1

89.5

100.0

Ferulic acid

60.9

100.0

100.0

Syringylglycolic acid

38.8

100.0

100.0