Lignocellulose dissociation with biological pretreatment towards the biochemical platform: A review
文献类型： 外文期刊
作者： Wu, Zengyou 1 ; Peng, Kun 3 ; Zhang, Yin 1 ; Wang, Mei 3 ; Yong, Cheng 2 ; Chen, Ling 2 ; Qu, Ping 2 ; Huang, Hongying 2 ; Sun, Enhui 2 ; Pan, Mingzhu 1 ;
作者机构： 1.Nanjing Forestry Univ, Coll Mat Sci & Engn, Nanjing 210037, Peoples R China
2.Jiangsu Acad Agr Sci, Inst Agr Resources & Environm, Jiangsu Collaborat Innovat Ctr Solid Organ Waste R, Key Lab Saline Alkali Soil Improvement & Utilizat, Nanjing 210014, Peoples R China
3.Jiangsu Univ, Sch Agr Engn, Zhenjiang 212013, Peoples R China
4.Univ KwaZulu Natal, Coll Agr Engn & Sci, Pietermaritzburg Campus,Private Bag X01, ZA-3209 Scottsville, South Africa
关键词： Lignocellulose; Lignin barrier; Cross -linked structure; Biological pretreatment; Biochemical platform
期刊名称：MATERIALS TODAY BIO （ 影响因子：10.761； 五年影响因子：10.761 ）
ISSN： 2590-0064
年卷期： 2022 年 16 卷
页码：
收录情况： SCI
摘要： Lignocellulose utilization has been gaining great attention worldwide due to its abundance, accessibility, renewability and recyclability. Destruction and dissociation of the cross-linked, hierarchical structure within cellulose hemicellulose and lignin is the key procedure during chemical utilization of lignocellulose. Of the pretreatments, biological treatment, which can effectively target the complex structures, is attractive due to its mild reaction conditions and environmentally friendly characteristics. Herein, we report a comprehensive review of the current biological pretreatments for lignocellulose dissociation and their corresponding degradation mechanisms. Firstly, we analyze the layered, hierarchical structure of cell wall, and the cross-linked network between cellulose, hemicellulose and lignin, then highlight that the cracking of beta-aryl ether is considered the key to lignin degradation because of its dominant position. Secondly, we explore the effect of biological pretreatments, such as fungi, bacteria, microbial consortium, and enzymes, on substrate structure and degradation efficiency. Additionally, combining biological pretreatment with other methods (chemical methods and catalytic materials) may reduce the time necessary for the whole process, which also help to strengthen the lignocellulose dissociation efficiency. Thirdly, we summarize the related applications of lignocellulose, such as fuel production, chemicals platform, and bio-pulping, which could effectively alleviate the energy pressure through bioconversion into high value-added products. Based on reviewing of current progress of lignocellulose pretreatment, the challenges and future prospects are emphasized. Genetic engineering and other technologies to modify strains or enzymes for improved biotransformation efficiency will be the focus of future research.
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