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A Review of Lignocellulosic Biomass Pretreatment Technologies
Received:March 28, 2021    Click here to download the full text
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Author NameAffiliationE-mail
Huang Caoxing Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing, Jiangsu Province, 210037, China hcx@njfu.edu.cn 
Liu Jiao Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing, Jiangsu Province, 210037, China  
Geng Wenhui Department of Forest Biomaterials, North Carolina State University, Raleigh, NC, 27695, USA  
Tang Wei Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing, Jiangsu Province, 210037, China  
Yong Qiang Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing, Jiangsu Province, 210037, China  
 
Abstract:Lignocellulose is the most abundant renewable resource on earth. However, owing to the tightly entangled structural characteristics, it is challenging to convert lignocellulose into bio-based products in the biorefinery process without pretreatment. Pretreatment can destroy the natural resistance structure of lignocellulosic biomass, which is conducive to its downstream enzymatic saccharification and fermentation process. Physical, chemical, and physicochemical pretreatments have been widely conducted for lignocellulosic biomass; several updated approaches and peculiar chemicals have also been proposed for these pretreatment methods in the recent years. Hence, this study comprehensively reviews the novel technologies and chemicals that were applied in the various pretreatments. In addition, the mechanisms, advantages, and disadvantages of the updated pretreatments are discussed to provide a reference for developing new pretreatment methods.
keywords:lignocellulosic biomass  pretreatment  enzymatic hydrolysis  bioethanol
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