Structural changes of lignin in biorefinery pretreatments and consequences to enzyme-lignin interactions

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Volume Title

A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Date

2017

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Language

en

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Nordic Pulp & Paper Research Journal, Volume 32, issue 4, pp. 547-568

Abstract

The main target of a biorefinery pretreatment process is to break down the lignin-reinforced 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.

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Keywords

Lignin, Structure, Biomass, Processing, Enzymatic, Saccharification, Hydrolysis, Non-productive, Adsorption

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Citation

Sipponen, M, Rahikainen, J, Leskinen, T, Pihlajaniemi, V, Mattinen, M-L, Lange, H, Crestini, C & Österberg, M 2017, ' Structural changes of lignin in biorefinery pretreatments and consequences to enzyme-lignin interactions ', Nordic Pulp & Paper Research Journal, vol. 32, no. 4, pp. 547-568 . https://doi.org/10.3183/npprj-2017-32-04_p550-571_sipponen