The fate of lignin during hydrothermal pretreatment.

ABSTRACT:

Background

Effective enzymatic hydrolysis of lignocellulosic biomass benefits from lignin removal, relocation, and/or modification during hydrothermal pretreatment. Phase transition, depolymerization/repolymerization, and solubility effects may all influence these lignin changes. To better understand how lignin is altered, Populus trichocarpa x P. deltoides wood samples and cellulolytic enzyme lignin (CEL) isolated from P. trichocarpa x P. deltoides were subjected to batch and flowthrough pretreatments. The residual solids and liquid hydrolysate were characterized by gel permeation chromatography, heteronuclear single quantum coherence NMR, compositional analysis, and gas chromatography-mass spectrometry.

Results

Changes in the structure of the solids recovered after the pre

SUBMITTER: Trajano HL 

PROVIDER: S-EPMC3751430 | biostudies-literature | 2013 Aug

REPOSITORIES: biostudies-literature