Skip to main content

Table 2 Substrate, product concentrations and yields obtained after 120 hours of SSF

From: SSF of steam-pretreated wheat straw with the addition of saccharified or fermented wheat meal in integrated bioethanol production

Config.

Glu1

EtOH1

Glycerol1

Yglycerol

EtOH prod. rate2

YEtOH

 

g/L

g/L

g/L

g/g glu

g/L h

%

g/g glu

A,C,DRef

0.0

24.9

1.9

0.034

0.75

91

0.47

Aa

3.2

60.3

3.9

0.030

0.88

96

0.49

Ab

3.9

58.7

3.7

0.029

1.07

94

0.48

BRef

0.0

26.3

1.2

0.018

0.26

79

0.40

Ba

4.9

56.1

8.5

0.065

0.50

84

0.43

Bb

3.8

63.2

2.7

0.021

0.68

95

0.49

Ca

43.5

37.4 (3.83)

3.3 (0.03)

0.000

0.48

16

0.08

Cb

23.8

43.9 (10.33)

4.4 (0.43)

0.006

0.26

37

0.19

D

10.5

51.2 (25.63)

7.9 (3.13)

0.057

1.59

90

0.46

  1. The experimental configurations (Config.) performed with baker’s yeast are described in Table 1.
  2. Glu: glucose, EtOH: ethanol; Y: yield, Ref: reference experiment.
  3. a, b: experiments performed in duplicate.
  4. 1 Concentration at the end of the SSF experiment.
  5. 2 Calculated from data for the first eight hours.
  6. 3 Produced during SSF.