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Table 1 Hydrolysis and fermentation of polysaccharides by R. albus 7

From: Unique aspects of fiber degradation by the ruminal ethanologen Ruminococcus albus 7 revealed by physiological and transcriptomic analysis

Polysaccharide

Ethanol1

Acetate1

Reducing sugars2

Cellulose

3.89 ± 0.20

2.33 ± 0.16

0.3 ± 0.5

Xylan (tobacco stalk)

3.82 ± 0.29

2.24 ± 0.19

19.1 ± 3.3

Xylan (larchwood)

3.07 ± 1.01

1.75 ± 0.84

5.4 ± 0.5

Glucomannan

3.77 ± 0.12

2.56 ± 0.13

6.3 ± 0.7

Lichenan

4.46 ± 0.38

2.70 ± 0.26

< 0.2

Soy polysaccharides

1.22 ± 0.19

0.93 ± 0.19

15.2 ± 4.2

Citrus pectin3

-

-

44.1 ± 8.9

Inulin3

-

-

54.7 ± 1.6

  1. 1Product formed during growth (mmol/g dry polysaccharide substrate).
  2. 2Reducing sugars in supernatant (% of dry polysaccharide substrate).
  3. 3Substrate was hydrolyzed to produce reducing sugars but was not utilized.
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BMC Genomics

ISSN: 1471-2164

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