Bài viết chỉ ra rằng nổ hơi là phương pháp xử lý phù hợp để tăng hàm lượng cellulose và do đó làm tăng hàm lượng glucose có thể lên men ethanol sau khi thủy phân bằng enzyme và làm giảm đáng kể hàm lượng hemicellulose trong sợi bã mía. Nhóm nghiên cứu đã sản xuất thành công butanol nhờ quá trình lên men acetone-butanol-ethanol (ABE) khi sử dụng chủng nấm men C. Beijerinckii. | TAÏP CHÍ PHAÙT TRIEÅN KH&CN, TAÄP 14, SOÁ K3 - 2011 STUDY ON THE CAPABILITY OF BIO-BUTANOL SYNTHESIS FROM SUGARCANE BAGASSE Huynh Quyen(1), Phan Dinh Tuan (2) (1) Petroleum Refinery and Petrochemicals Technology Research Center (2) Laboratory for Bioenergy and Biomass Research Hochiminh City University of Technology, VNU-HCM (Manuscript Received on May 13th, 2011, Manuscript Revised November 01st, 2011) ABSTRACT: The main concern in converting sugarcane bagasse to bio-butanol fuel is the conversion of the polysaccharides by enzymatic breakdown into monosaccharides. This study focused on the use of steam explosion as a pretreatment method. Steam explosion treatment of biomass had been previously used to increase cellulose accessibility [1,3,5,6,8,9] . Following steam explosion pretreatment, sugarcane bagasse was subjected to enzymatic hydrolysis employing the Acremonium Cellulase as the reactant. The sugars released by enzymatic hydrolysis were further fermented by Clostridium Beijerinckii. Raw sugarcane bagasse was found to have the polysaccharides content of . The fiber loss during the steam explosion treatment was high, up to . Steam explosion treatment on sugarcane bagasse increased the enzymatic hydrolysis capability of cellulose. After steam explosion treatment at temperature of 224oC for 2 minutes, the cellulose hydrolysis conversion efficiency could reach by applying Acremonium Cellulase for 72 hours. It has been stated that steam explosion was suitable to improve cellulose content and consequently improve fermentable glucose yield from enzymatic hydrolysis while drastically reducing hemicellulose content of the fibers. Butanol has been successfully produced from the sugarcane bagasse hydrolysate in acetone-butanol-ethanol (ABE) process applying C. Beijerinckii. Keywords: Butanol, sugarcane bagasse, steam explosion 1. INTRODUCTION In the 20th century, the world economy has about 5 billion barrels in 2050[6]. A search for other .
