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This study compares the efficacy of soaking and percolation pretreatments with alkaline solutions for lignocellulosic biomass. The pretreated biomasses underwent enzymatic hydrolysis. Various biomasses such as rice straw and barley were pretreated by soaking processes in various alkaline solutions including sodium hydroxide, potassium hydroxide, aqueous ammonia and sodium carbonate. The enzymatic...
Liberation of fermentable sugars from recalcitrant lignocellulosic biomass is one of the key challenges in production of cellulosic ethanol. Here we developed a two-stage pretreatment process using aqueous ammonia and dilute sulfuric acid in a percolation mode to improve production of fermentable sugars from rice straw. Aqueous NH 3 was used in the first stage which removed lignin selectively...
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