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Table 2 Estimated parameters for substrate-enzyme diffusion-limited kinetic model for UTRS and AFEX pretreated rice straw at different particle size and glucan loading

From: Performance of AFEX™ pretreated rice straw as source of fermentable sugars: the influence of particle size

Substrate size 1% Glucan loading 3% Glucan loading
Diffusion-limited kinetic Equilibrium sugar concentrations, P e at t = 168 h Diffusion-limited kinetic Equilibrium sugar concentrations, P e at t = 168 h
  k(L/g.h) n R2(%) Glucose (g/L) Xylose (g/L) k(L/g.h) n R2(%) Glucose (g/L) Xylose (g/L)
UTRS – 2 mm 0.0475 0.293 98.5 2.9 0.6 - - - - -
UTRS – 5 cm 0.0309 0.285 99.0 2.7 0.5 - - - - -
AC1RS – 2 mm 0.0998 0.296 99.3 8.1 3.7 0.0300 0.364 99.2 24.4 9.9
AC1RS – 5 mm 0.1003 0.320 99.4 7.5 3.1 0.0286 0.340 99.5 21.8 8.7
AC1RS – 2 cm 0.1078 0.440 99.4 7.6 2.8 0.0288 0.444 99.2 22.0 8.2
AC1RS – 5 cm 0.0929 0.456 97.3 6.7 2.3 0.0282 0.509 99.5 19.9 7.0
AC2RS – 2 mm 0.0958 0.294 99.9 8.6 4.1 0.0184 0.397 98.9 22.1 10.1
AC2RS – 5 mm 0.1216 0.322 99.1 7.9 3.5 0.0182 0.381 98.0 20.3 8.6
AC2RS – 2 cm 0.1412 0.438 98.6 9.1 4.0 0.0323 0.528 99.5 27.0 10.6
AC2RS – 5 cm 0.1598 0.522 98.7 10.0 4.3 0.0345 0.616 98.4 29.4 11.4