Abstract
The objective of the research was to investigate the effect of biomass loading, alkali (NaOH) concentration and pre-treatment time on the yield of glucose obtained following alkaline pre-treatment and enzymatic hydrolysis of oilseed rape (OSR) straw. A maximum glucose yield of (440.6±14.9)g glucose kg−1 biomass was obtained when OSR straw was pre-treated at a biomass loading of 50gkg−1 and an alkali concentration of 0.63moldm−3 NaOH for 30min. The energy efficiency of glucose extraction (0.39kg glucose MJ−1 consumed) was highest when OSR straw was pre-treated at a biomass loading of 50gkg−1 and an alkali concentration of 0.63 or 0.75moldm−3 for 30min. The study demonstrated alkaline pre-treatment of OSR straw is superior to acid pre-treatment in terms of glucose yield and energy efficiency.
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