Utilization of household food waste for the production of ethanol at high dry material content

Table 2 Results of ethanol production during cultivation of S. cerevisiae on HFW

Initial dry material	Separate liquefaction step	Ethanol production	Ethanol productivity	% of the maximum theoretical yield^a	% of the maximum theoretical yield^b
(% w/v)	Separate liquefaction step	(g/L)	(g/L · h)	% of the maximum theoretical yield^a	% of the maximum theoretical yield^b
35	+	34.85 ± 0.55	2.32 ± 0.04	59.82 ± 0.94	159.21 ± 2.51
45	+	42.78 ± 0.83	2.85 ± 0.06	57.12 ± 1.10	151.91 ± 2.93
35	-	24.75 ± 2.20	0.52 ± 0.05	42.48 ± 3.78	113.07 ± 10.05
45	-	39.15 ± 0.75	0.82 ± 0.02	52.28 ± 1.00	139.07 ± 2.66

% Maximum theoretical ethanol yield, calculations were; ^abased on the maximum ethanol that could be produced from the soluble and the cellulosic sugars; ^bbased on the maximum ethanol production from the soluble sugars only.
The values are given as mean ± SD.

ISSN: 2731-3654