Journal
BIORESOURCE TECHNOLOGY
Volume 343, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2021.126097
Keywords
Lignocellulosic wastes; Biological resource recovery; Biofuels
Funding
- Ministry of Science and Technology of Taiwan [MOST 109-2811-E-006-521, MOST 110-2811-E-006-514]
- Ministry of Education of Taiwan
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The article reviews the challenges and recent developments in utilizing lignocellulosic materials for biorefinery processes, emphasizing on biological pretreatments and resource recovery. Co-culture system and metabolic engineering are highlighted as promising biological technologies for future developments.
Lignocellulosic wastes were recently considered as biomass resources, however, its conversion to valuable products is still immature although researchers have put lots of effort into this issue. This article reviews the key challenges of the biorefinery utilizing lignocellulosic materials and recent developments to conquer those obstacles. Available biological techniques and processes, from the pretreatments of cellulosic materials to the valorization processes, were emphasized. Biological pretreatments, including hydrolysis using microbial consortia, fungi, enzymes, engineered bacterial/fungal strains, and co-culture systems, could enhance the release of reducing sugar. Resources recovery, including biogases, ethanol, butanol, PHA, etc., from lignocellulosic materials were also discussed, while the influences of composition of lignocellulosic materials and pretreatment options, applications of co-culture system, and integrated treatments with other wastes, were described. In the review, co-culture system and metabolic engineering are emphasized as the promising biological technologies, while perspectives are provided for their future developments.
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