Biotechnology for Biofuels and Bioproducts

Table 1 Compositions of solid and liquid fractions for three batches of pretreated wheat straw

From: Sustaining fermentation in high-gravity ethanol production by feeding yeast to a temperature-profiled multifeed simultaneous saccharification and co-fermentation of wheat straw

Solid fraction (% WIS)				Liquid fraction (g L⁻¹)
	M1^a	M2^a	M3		M1^a	M2	M3
Glucan	47.7 ± 3.5	42.4 ± 1.3	36.2 ± 5.0	Glucose	6.8	2.6 ± 0.1^b	4.5 ± 0.2^b
Xylan	2.3 ± 0.4	2.6 ± 0.1	4.3 ± 0.1	Xylose	12.8	22.8 ± 1.1^b	32.7 ± 1.0^b
Mannan	0.2 ± 0.1	0.2 ± 0.1	0.2 ± 0.08	Mannose	0.4	0.5 ± 0.1^b	1.1 ± 0.1^b
Galactan	0.04 ± 0.01	0	0.01 ± 0.00	Galactose	1.0	1.0 ± 0.2^b	1.9 ± 0.1^b
Arabinan	0.1 ± 0.01	0.08 ± 0.01	0.2 ± 0.00	Arabinose	2.0	2.8 ± 0.03^b	4.2 ± 0.1^b
Lignin		41.7	35.6	Acetic acid	3.8	3.2	3.7 ± 0.05
				Furfural	4.0	0.8	1.5 ± 0.04
Total		87.0	76.5	HMF	1.4	0.4	0.3 ± 0.00

All data are average of at least two separate measurements. Data shown are means ± range. M1, M2 and M3 stand for material 1, 2 and 3 received from the SP biorefinery demo plant. The ranges for acetic acid, furfural, and HMF are within 5% of the average
^aData from [32]
^bMonomeric and oligomeric sugars

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