Combining the effects of process design and pH for improved xylose conversion in high solid ethanol production from Arundo donax

AMB Express

Table 1 Composition of the pretreated Arundo donax slurry

Solid composition (% of WIS)
	Average	Std dev
Glucan	48.2	0.2
Xylan	3.8	0.0
Galactan	n.d^a	-
Arabinan	n.d	-
Mannan	n.d	-
Lignin	41.7	0.0
Soluble components (g L ⁻¹ )
Sugars	Monomers	Total sugars (including monomers)
Glucose	2.5	14.2
Xylose	4.0	18.4
Galactose	n.d	n.d
Arabinose	n.d	n.d
Mannose	n.d	n.d
Inhibitors and degradation products
Acetic Acid	5.6
HMF	n.d
Furfural	0.2

^an.d. = not detected, i.e. below detection limit.
The solid composition is based on wt-% of the WIS content and the soluble components are reported in g L⁻¹ liquid. The WIS content of the pretreated material was measured to 22.5 wt-%.