RESPONSE SURFACE METHODOLOGY FOR OPTIMIZING ALKALINE HYDROGEN PEROXIDE PRETREATMENT OF CORN STOVER

Authors: Osakue I.Y, *Amenaghawon N.A

DOI Info: N/A

ABSTRACT

Pretreatment is a critical step in the conversion of lignocellulosic biomass to fermentable sugars. In this study, alkaline hydrogen peroxide pretreatment was evaluated for the purpose of obtaining fermentable sugars from corn stover. The effect of alkaline hydrogen peroxide concentration, residence time, and temperature was investigated and optimised using response surface methodology (RSM). Pretreatment was carried out with the following range of the independent variables: temperature (60 ^oC - 90 ^oC), time (20 min - 40 min) and AHP concentration (2.5 w/v% -7.5w/v%) resulting in 17 experimental runs. The optimum operating conditions predicted by RSM was AHP concentration of 7.43w/v%, time of 22 min and temperature of 68.40 ^oC with a sugar yield of 30.16 g/L.

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