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Sustainable Chemical Processes

Table 1 Compositional analyses result of post-biogas digestion manure fiber (anaerobically bacterial digested)

From: Combined sodium hydroxide and ammonium hydroxide pretreatment of post-biogas digestion dairy manure fiber for cost effective cellulosic bioethanol production

Component

aPost-biogas digestion manure fiber, dry basis

Carbohydrate

 

Glucose

23.6 ± 0.3%

Xylose, Galactose, Arabinose, and Mannose

17.5 ± 0.3%

Lignin

 

Acid insoluble lignin

27.6 ± 0.1%

Acid soluble lignin

1.8 ± 0.0%

Lignin monomer

 

b S/G ratio

0.3

S/H ratio

1.9

H/G ratio

0.1

Uronic acid

2.6 ± 0.1%

Ash

13.7 ± 0.1%

Extractives

11.7 ± 0.1%

Fiber elements

 

C

39.1 ± 0.4%

N

3.3 ± 0.2%

P

1.1 ± 0.0%

K

1.4 ± 0.0%

Ca

4.8 ± 0.6%

Mg

0.8 ± 0.1%

S

1.0 ± 0.0%

Cl

0.4 ± 0.1%

Fe

0.3 ± 0.1%

Zn

0.1 ± 0.0%

  1. a Data are average of two replicates. Numbers with ± values represent standard errors; b Syringyl (S), guaiacyl (G), and p-hydroxyphenyl (H) lignin.
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