AI Article Synopsis
- * Two major influences on enzymatic digestibility were found: structural changes in cellulose and the properties of the ionic liquids, such as viscosity and surface tension.
- * The ionic liquid [C2mim][OAc] achieved a noteworthy 97.7% glucose yield, suggesting that understanding the transformation in cellulose structure could lead to optimized biomass pretreatment processes for better enzyme accessibility.
Article Abstract
In this study, five ionic liquids (ILs) have been explored for biomass pretreatment for the production of fermentable sugar. We also investigated the driving factors responsible for improved enzymatic digestibility of various ILs treated biomass along with postulating the plausible mechanism thereof. Post pretreatment, mainly two factors impacted the enzymatic digestibility (i) structural deformation (cellulose I to II) along with xylan/lignin removal and (ii) properties of ILs; wherein, K-T parameters, viscosity and surface tension had a direct influence on pretreatment. A systematic investigation of these parameters and their impact on enzymatic digestibility is drawn. [C2mim][OAc] with β-value 1.32 resulted 97.7% of glucose yield using 10 FPU/g of biomass. A closer insight into the cellulose structural transformation has prompted a plausible mechanism explaining the better digestibility. The impact of these parameters on the digestibility can pave the way to customize the process to make biomass vulnerable to enzymatic attack.
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| http://dx.doi.org/10.1016/j.carbpol.2016.04.129 | DOI Listing |
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