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Table 4 Lignin characteristics: thioacidolysis yield, S/G ratio and fluorescence intensity

From: Evaluating polymer interplay after hot water pretreatment to investigate maize stem internode recalcitrance

  Raw maize stem 20-min HWP 40-min HWP
M7 M9 M7 M9 M7 M9
Thioacidolysis yield (µmol g−1 KL) 765 (± 23) 671 (± 43) 799 (± 11) 884 (± 12) 321 (± 33) 266 (± 8)
S/G ratio 1.79 (± 0.02) 1.02 (± 0.03) 1.96 (± 0.14) 0.99 (± 0.01) 2.87 (± 0.10) 1.35 (± 0.10)
Fluorescence intensity 8100 5500 4700 2600 1700 1200
  1. Thioacidolysis yields are expressed in µmol g−1.Klason Lignin. Syringyl/Guaiacyl molar ratios (S/G ratio) were determined by thioacidolysis. Fluorescence intensity was measured at λexcitation = 365 nm and λemission = 440 nm. Results are expressed as means of three repetitions with standard deviation in brackets