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Table 1 Analysis of lignocellulose-degrading enzymatic activities and production of GAMG under optimal fermentation conditions

From: Concurrent production of glycyrrhetic acid 3-O-mono-β-d-glucuronide and lignocellulolytic enzymes by solid-state fermentation of a plant endophytic Chaetomium globosum

  Enzymes Max enzymatic activity (U/g) Days (d) Pa (U/g/d) Pb (mg/g/d)
Non-optimization CMCase 29.17 ± 1.01 10 2.93 ± 0.68 0.9 ± 0.03
FPase 234.63 ± 4.28 7 33.52 ± 0.58
β-Glucosidase 6.81 ± 0.30 22 0.31 ± 0.02
Xylanase 72.52 ± 4.00 7 10.36 ± 0.44
GUSase 264.17 ± 12.17 20 13.21 ± 0.69
Optimization CMCase 33.67 ± 2.48 5 6.74 ± 0.88*  
FPase 245.80 ± 13.40 3 81.93 ± 2.36*  
β-Glucosidase 5.78 ± 0.69 20 0.29 ± 0.03 2.1 ± 0.07*
Xylanase 83.44 ± 3.76 3 27.81 ± 1.78*  
GUSase 271.42 ± 6.54 10 27.15 ± 2.06*  
  1. aThe production of lignocellulolytic enzymes when reaching maxim enzymatic activity
  2. bThe production of GAMG when the percent conversion of glycyrrhizin reaches 90%.
  3. *P values analyzed by t test are statistically significant for a confidence level of 95% (P < 0.05)