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Table 4 Ethanol production after SSF of raw sugarcane bagasse (SCB), hydrothermally treated sugarcane bagasse (HTT SCB), ensiled sugarcane bagasse (ESCB), and ensiled hydrothermally treated sugarcane bagasse (HTT ESCB) (10% solid fibers)

From: Combined ensiling and hydrothermal processing as efficient pretreatment of sugarcane bagasse for 2G bioethanol production

 

Ethanol production (g/l)

SSF ethanol yield %a

Overall ethanol yield (g ethanol/g raw material)b

SCB

2.7 ± 0.0

14.5

0.03

 HTT SCB 160 °C

4.6 ± 0.0

21.7

0.04

 HTT SCB 170 °C

7.1 ± 0.0

32.2

0.06

 HTT SCB 180 °C

12.6 ± 0.1

52.7

0.11

 HTT SCB 190 °C

19.0 ± 0.0

75.3

0.14

ESCB

3.3 ± 0.0

19.9

0.04

 HTT ESCB 160 °C

5.3 ± 0.0

25.6

0.04

 HTT ESCB 170 °C

10.1 ± 0.0

44.6

0.08

 HTT ESCB 180 °C

14.0 ± 0.1

60.8

0.11

 HTT ESCB 190 °C

19.7 ± 0.1

79.3

0.14

  1. a% of theoretical ethanol yield obtained from the glucose equivalents present in the solid fibers used in the SSF process
  2. bOverall ethanol yield is the ethanol obtained from the raw material after pretreatment (if used) and SSF, expressed in g of ethanol per g of raw material
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Biotechnology for Biofuels and Bioproducts

ISSN: 2731-3654

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