Optimising the (Microwave) Hydrothermal Pretreatment of Brewers Spent Grains for Bioethanol Production

Table 1

Typical compositional analysis of brewers spent grains [13].

BSG component	% (w/w)
Starch	4.8 ± 0.46
Protein	26.6 ± 0.38
Ash	2.7 ± 0.070
Lipid	5.2 ± 2.1
Lignin	9.9 ± 1.4
Cellulose (glucose)	19.2 ± 1.4
Hemicellulose	18.4 ± 3.7
of which xylose	11.3 ± 1.2
Moisture content	7.4 ± 0.80
Other	5.8

Data are the mean ± SD of 3 replicate measurements.