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Table 2 Properties of thermostable β-xylosidases from thermophiles

From: Highly thermostable GH39 β-xylosidase from a Geobacillus sp. strain WSUCF1

Organism GH family Optimum pH Optimum temperature (°C) Thermal stability K m(mM) V max(U/mg) References
Geobacillus sp. WSUCF1 39 6.5 70 Half-life of 9 days at 70°C 2.3 147 This study
Thermoanaerobacterium saccharolyticum JW/SL-YS485 Novel 6.0 65 Half-life of 1 h at 67°C 28.0 276 [5]
Geobacillus thermodenitrificans TSAA1 52 7.0 60 Half-life of 3 h at 70°C 2.8 4.16 [7]
Geobacillus stearothermophilus 52 6.5 70 Half-life of 3.4 h at 70°C 0.15 NA [18]
Bacillus stearothermophilus NA 6.0 70 Half-life of approx. 1 h at 70°C 1.2 NA [10]
Bacillus thermantarcticus NA 6.0 70 Stable for 1 h at 60°C 0.5 NA [23]
Geobacillus pallidus 52 8.0 70 Half-life of approx. 10 h at 70°C 2.4 4.72 [19]
Geobacillus thermoleovorans IT-08 43 6.0 60 Retained more than 70 % activity after 1 h at 70°C 0.06 NA [21]
Geobacillus thermoleovorans IT-08 43 5.0 NA Half-life of 35 min at 57.5°C 0.55 NA [22]