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Table 3 Ethanol fermentation performances of different pretreated biomass hydrolysates

From: A comparative study of ethanol production using dilute acid, ionic liquid and AFEX™ pretreated corn stover

Ethanol fermentation

Parameter

DA

IL

AFEX

Without nutrient supplementation

Metabolic yield (%)

93

90

98

Glucose consumption (%)

100

100

99

Xylose consumption (%)

91

70

84

Maximum glucose consumption rate (g.L−1.h−1)

4.95

5.36

5.72

Maximum xylose consumption rate (g.L−1.h−1)

0.07

0.24

0.47

With nutrient supplementation

Metabolic yield (%)

90

93

97

Glucose consumption (%)

100

100

99

Xylose consumption (%)

100

97

94

Maximum glucose consumption rate (g.L−1.h−1)

8.09

8.80

7.30

 

Maximum xylose consumption rate (g.L−1.h−1)

0.16

1.18

0.87

  1. Metabolic yield calculated based on the theoretical ethanol yield from consumed glucose and xylose, 0.51 g ethanol/g sugar. AFEX, ammonia fiber expansion; DA, dilute acid; IL, ionic liquid.