Overcoming cellulose recalcitrance in woody biomass for the lignin-first biorefinery.

ABSTRACT:

Background

Low-temperature swelling of cotton linter cellulose and subsequent gelatinization in trifluoroacetic acid (TFA) greatly enhance rates of enzymatic digestion or maleic acid-AlCl₃ catalyzed conversion to hydroxymethylfurfural (HMF) and levulinic acid (LA). However, lignin inhibits low-temperature swelling of TFA-treated intact wood particles from hybrid poplar (Populus tremula × P. alba) and results in greatly reduced yields of glucose or catalytic conversion compared to lignin-free cellulose. Previous studies have established that wood particles from transgenic lines of hybrid poplar with high syringyl (S) lignin content give greater glucose yields following enzymatic digestion.

Results

Low-temperature (- 20 °C) treatment of S-lignin-rich p

SUBMITTER: Yang H 

PROVIDER: S-EPMC6599248 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature