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Table 2 Some thermostable cellulases of industrial significance

From: Lignocellulases: a review of emerging and developing enzymes, systems, and practices

Cellulase Source/organism Maximum/optimum activity Stability (T1/2) References
Cellulase Desulfurococcus fermentans (Hyperthermophilic archaea) 80–82 °C (pH 6) 85 °C, >3 days (Perevalova 2005)
Endoglucanase (GH5) Hyperthermophilic archaea 109 °C (pH 6.8) 100 °C, 5 h (Graham et al. 2011)
Endoglucanase (GH5) Dictyoglomus thermophilum 50–85 °C (pH 5) 70 °C, 336 h (Shi et al. 2013)
β-Glucosidase (GH1) Thermotoga thermarum DSM 5069T 90 °C (pH 4.8) 90 °C, 2 h (Zhao et al. 2013)
β-Glucosidase (GH1) Hydrothermal spring metagenome 90 °C (pH 6.5) 90 °C, >1.5 h (Schröder et al. 2014)
β-Glucosidase (GH1) Alicyclobacillus acidocaldarius 65 °C (pH 5.5) 65 °C, >3 h (di Lauro et al. 2006)
β-Glucosidase (GH3) Thermofilum pendens 90 °C (pH 3.5) 90 °C, >2 h (Li et al. 2013)
β-Glucosidase (GH3) Pholiota adiposa SKU0714 65 °C (pH 5) 65 °C, 23 h (Jagtap et al. 2013)
β-Glucosidase Pyrococcus furiosus 102–05 °C (pH 5) 100 °C, 85 h (Kengen et al. 1993)
β-Glucosidase Oenococcus oeni ST81 40 °C (pH 5) 40 °C, 50 days (Mesas et al. 2012)
β-Glucosidase Sphingopyxis alaskensis 50 °C (pH 5.5) NA (Shin and Oh 2014)
CMcellulase Bacillus pumilus S124A 50 °C (pH 6.0) NA (Balasubramanian and Simões 2014)
Multi-domain (Hemi)cellulase Caldicellulosiruptor bescii 72–80 °C (pH 5–6) NA (Kanafusa-Shinkai et al. 2013)
  1. NA not analyzed