Enzymatic hydrolysis of steam exploded and alkali pretreated birchwood chips
DOI:
https://doi.org/10.12775/CL.2013.003Abstract
Alkaline pretreatment with NaOH and Steam Explosion (SE) was studied to improve sugar yield from birch wood. Alkali pretreatments were carried out at different temperatures (50°C, 80°C, 100°C and 121°C) in 0,5% and 2% NaOH solutions. The pretreated materials (SE and alkali) were subsequently enzymatically hydrolysed and reducing sugars yield was estimated. Best results were obtained after pretreatment at 121°C for 1 hour with 2% NaOH solution (16 g/l reducing sugars; 37% of theoretical yield), the lowest results were observed for the mildest conditions (50°C, 0,5% NaOH).
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