title: High-pressure homogenization pretreatment of four different lignocellulosic biomass for enhancing enzymatic digestibility.
abstract: Grass clipping, corn straw, catalpa sawdust and pine sawdust were pretreated with high-pressure homogenization (HPH) to enhance the enzymatic digestibility. With a working pressure of 10 MPa, all the four lignocellulosic biomass were significantly changed, such as decrease in particle size, structure destruction, and crystallinity change. Results showed that lignocellulosic biomass pretreated with HPH yielded more reducing sugar, which was suitable for subsequent biofuel production. After 48-h enzymatic hydrolysis, the maximum reducing sugar yield of 229.42 mg/g was achieved for grass clipping. For corn straw, the enzymatic hydrolysis efficiency increased by 68.37% at most. However, reducing sugar yield of catalpa sawdust and pine sawdust was relatively lower. Low lignin content and crystallinity might make grass clipping the most suitable material for HPH pretreatment, thus leading to high hydrolysis efficiency. HPH pretreatment could increase biofuel output in a mild condition without adding any chemicals.
authors: Beijing Key Lab for Source Control Technology of Water Pollution, Beijing Forestry University, Beijing 100083, China. Electronic address: shuguangjin@126.com.
authors: Shuguang
authors: S
authors: Jin
authors: School of Environment and Resource, Renmin University of China, Beijing 100872, China. Electronic address: zgm@ruc.edu.cn.
authors: Guangming
authors: G
authors: Zhang
authors: Beijing Key Lab for Source Control Technology of Water Pollution, Beijing Forestry University, Beijing 100083, China. Electronic address: panyue_zhang@bjfu.edu.cn.
authors: Panyue
authors: P
authors: Zhang
authors: Beijing Key Lab for Source Control Technology of Water Pollution, Beijing Forestry University, Beijing 100083, China. Electronic address: fanshiyang_1991@163.com.
authors: Shiyang
authors: S
authors: Fan
authors: Beijing Key Lab for Source Control Technology of Water Pollution, Beijing Forestry University, Beijing 100083, China. Electronic address: lipanlove1987@126.com.
authors: Fan
authors: F
authors: Li
mesh_terms: D018533:Biomass; D001709:Biotechnology / Q000379:methods*; D002480:Cellulase / Q000378:metabolism*; D003460:Crystallization; D006813:Humidity; D006868:Hydrolysis; D008031:Lignin / Q000737:chemistry*; D010316:Particle Size; D010944:Plants / Q000737:chemistry; D011312:Pressure
chemical_list: C036909:lignocellulose; D008031:Lignin; D002480:Cellulase
keywords: Crystallinity; Enzymatic digestibility; Grass clipping; High-pressure homogenization; Lignocellulosic biomass