TAILIEUCHUNG - Thermo-pretreatment on bamboo biomass with ammonia
This study showed that hydrothermal technique could be an efficient way in order to disrupt the lignin structure of the biomass and increase the accessibility of other treatment agents to cellulose and hemicellulose. | Journal of Science and Technology 54 (4B) (2016) 216-224 THERMO-PRETREATMENT ON BAMBOO BIOMASS WITH AMMONIA Dai Hue Ngan1, Le Thi Khanh Nghia1, Huynh Thi Kim Tuyen2, Nguyen Duong Tam Anh3, Tran Van Man1, 2, * 1 Department of Physical Chemistry, Faculty of Chemistry, VNUHCM - University of Science, 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City 2 Applied Physical Chemistry Laboratory, Faculty of Chemistry, VNUHCM-University of Science, 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City 3 Department of Chemical Biology, Faculty of Biology and Biotechnology, VNUHCM-University of Science, 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City * Email: tvman@ Received: 15 August 2016; Accepted for publication: 10 November 2016 ABSTRACT Hydrogen is rising as one of potential fuel types to instead of petroleum and fossil energy in the future because of its high energy density and non-carbon exhaust. There are many processes for hydrogen production, but fermentative hydrogen production (FHP) from lignocellulosic biomass as rich-carbohydrate feedstocks is considered to be the one of the most effective methods. However, the yield of fermentable sugar could be strongly impacted by pretreatment of lignocellulosic materials. Thus, this work studied the effects of thermal-ammonia pretreatment method on bamboo powder at 125 oC, during in 30-90 minutes. The results showed that the maximum recovery of carbohydrate in solid were mg/(1g bamboo powder), and the sugar conversion yield and sugar content in final solution were % and g/L, respectively. % of lignin content in bamboo biomass could be removed. The maximum hydrogen accumulation reached % of the gaseous mixtures after 48 h of fermentation. This study showed that hydrothermal technique could be an efficient way in order to disrupt the lignin structure of the biomass and increase the accessibility of other treatment agents to cellulose and hemicellulose. Keywords: ammonia,
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