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Table 3 Characteristics of highly xylose-tolerant β-xylosidase from T. thermarum DSM 5069 and other microorganisms

From: Biochemical properties of a novel thermostable and highly xylose-tolerant β-xylosidase/α-arabinosidase from Thermotoga thermarum

Strain

K m (mM)

V max (U/mg)

K i for xylose (mM)

k cat /K m (mM-1 s-1)

Optimal temp (°C)

 

ap NPX

bp NPAF

p NPX

p NPAF

 

p NPX

p NPAF

 

T. thermarum

0.27

0.21

223.2

75.0

1000

1173.4

505.9

95

d Unnamed bacterium[26]

3.43

2.23

cND

ND

76.0

8.1

2.5

40

Paecilomyces thermophila[22]

4.3

ND

ND

ND

139

ND

ND

55

Scytalidium thermophilum[21]

1.3

ND

88

ND

e < 600

ND

ND

60

  1. ap NPX: p-nitrophenyl-β-D-glucopyranoside.
  2. bp NPAF: p-nitrophenyl-α-L-arabinofuranoside.
  3. c ND: not determined.
  4. d Isolated from yak rumen.
  5. e Calculated by the data based on the reference[21].
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Biotechnology for Biofuels and Bioproducts

ISSN: 2731-3654

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