Table 2. Composition of the non-detoxified and detoxified MGR prehydrolysate after AC treatment (50 g L⁻¹ AC mixed for 16 h)^a.

	Lignocellulosic prehydrolysate
	Non-detoxified (mean)	Detoxified (mean)
TCOD (g L−1)	103.65 ± 2.55	81.50 ± 0.30
SCOD (g L−1)	99.85 ± 1.35	—
TS (g L−1)	74.74 ± 0.31	64.74 ± 0.25
VS (g L−1)	69.22 ± 0.44	56.40 ± 0.10
NH4+-N (mg L−1)	83.11 ± 3.37	83.57 ± 2.59
N (mg L−1)	653.56 ± 13.94	285.02 ± 4.66
Proteins (mg L−1)	4.06 ± 0.09	1.77 ± <0.10
Glucose (g L−1)	15.86 ± <0.10	14.41 ± <0.10
Xylose (g L−1)	27.92 ± <0.10	25.48 ± <0.10
Galactose (g L−1)	4.49 ± <0.10	4.28 ± <0.10
Arabinose (g L−1)	2.73 ± <0.10	2.66 ± <0.10
Mannose (g L−1)	3.79 ± <0.10	3.51 ± <0.10
Citric acid (g L−1)	0.82 ± <0.10	0.58 ± <0.10
Lactic acid (g L−1)	0.75 ± <0.10	0.08 ± <0.10
Formic acid (g L−1)	1.61 ± <0.10	1.45 ± <0.10
Acetic acid (g L−1)	10.21 ± <0.10	9.62 ± <0.10
Propionic acid (g L−1)	0.04 ± <0.10	0.03 ± <0.10
HMF (g L−1)	1.31 ± <0.10	0.16 ± <0.10
Furfural (g L−1)	2.40 ± <0.10	0.25 ± <0.10
4-Benzaldehyde (g L−1)	0.07 ± <0.01	n.d
Vanillin (g L−1)	0.04 ± <0.01	n.d

^an.d. not detected.