Advances in organosolv modified components occurring during the organosolv pretreatment of lignocellulosic biomass

Chihe Sun, Guojie Song, Zhenying Pan, Maobing Tu, Mahshid Kharaziha, Xueming Zhang, Pau Loke Show, Fubao Sun

Research output: Contribution to journalReview articlepeer-review

17 Scopus citations

Abstract

The valorization of organosolv pretreatment (OP) is a required approach to the industrialization of the current enzyme-mediated lignocellulosic biorefinery. Recent literature has demonstrated that the solvolysis happening in the OP can modify the soluble components into value-added active compounds, namely organosolv modified lignin (OML) and organosolv modified sugars (OMSs), in addition to protecting them against excessive degradation. Among them, the OML is coincidental with the “lignin-first” strategy that should render a highly reactive lignin enriched with β-O-4 linkages and less condensed structure by organosolv grafting, which is desirable for the transformation into phenolic compounds. The OMSs are valuable glycosidic compounds mainly synthesized by trans-glycosylation, which can find potential applications in cosmetics, foods, and healthcare. Therefore, a state-of-the-art OP holds a big promise of lowering the process cost by the valorization of these active compounds. Recent advances in organosolv modified components are reviewed, and perspectives are made for addressing future challenges.

Original languageBritish English
Article number128356
JournalBioresource Technology
Volume368
DOIs
StatePublished - Jan 2023

Keywords

  • Lignin-first strategy
  • Lignocellulosic biomass
  • Organosolv glycosides
  • Organosolv lignin
  • Transformation into phenolic
  • Value-added compounds

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