Table 4: Variation of time and natural log of concentration of lignin for 1 w/w% NaOH pretreatment of Napier.

Time, mins lnCc
mg/mL
at 80°C
lnCc
mg/mL
at 90°C
lnCc
mg/mL
at 100°C
lnCc
mg/mL
at 110°C
lnCc
mg/mL
at 120°C
0 -3.98459 -5.116 -5.59942 -3.30771 -3.48349
10 -2.66499 -1.96611 -1.74469 -1.8734 -0.77068
20 -1.97616 -1.22418 -0.9527 -0.99263 -0.06753
30 -1.48899 -0.75929 -0.45146 -0.37455 0.369285
40 -1.1069 -0.41249 -0.07505 0.099483 0.692497
50 -0.79054 -0.13239 0.230079 0.483413 0.951928
60 -0.51987 0.10436 0.488396 0.805851 1.17022
70 -0.28289 0.310422 0.713293 1.083702 1.359617
80 -0.07913 0.493476 0.912965 1.327764 1.527512
90 0.118316 0.658556 1.092829 1.545347 1.678721
100 0.291624 0.809151 1.25667 1.741623 1.816566