Abstract
The main target of a biorefinery pretreatment process is to break down the ligninreinforced plant cell wall structure prior to enzymatic hydrolysis of polysaccharides to fermentable sugars. Various physico-chemical alterations occur in lignin during the biomass pretreatment, but effects of those structural changes on subsequent enzymatic hydrolysis have remained ambiguous. We review the reinforcing and detrimental lignin-enzyme interactions and their underlying mechanisms, and use this structure-function information to assess critical features of current and emerging pretreatment technologies. Our perspective is that truly multidisciplinary research is needed to develop pretreatments that render lignin non-inhibiting to enzymes and with high potential for further valorisation.
Original language | English |
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Pages (from-to) | 550-571 |
Journal | Nordic Pulp and Paper Research Journal |
Volume | 32 |
Issue number | 4 |
Publication status | Published - 19 Jul 2017 |
MoE publication type | A1 Journal article-refereed |
Keywords
- lignin
- structure
- biomass
- processing
- enzymatic
- saccharification
- hydrolysis
- non-productive
- adsorption