Bacterial conversion of depolymerized Kraft lignin.

ABSTRACT:

Background

Lignin is a potential feedstock for microbial conversion into various chemicals. However, the degradation rate of native or technical lignin is low, and depolymerization is needed to obtain reasonable conversion rates. In the current study, base-catalyzed depolymerization-using NaOH (5 wt%)-of softwood Kraft lignin was conducted in a continuous-flow reactor system at temperatures in the range 190-240 °C and residence times of 1 or 2 min. The ability of growth of nine bacterial strains belonging to the genera Pseudomonas and Rhodococcus was tested using the alkaline-treated lignin as a sole carbon source.

Results

Pseudomonas fluorescens and Rhodococcus opacus showed the best growth of the tested species on plates with lignin. Further eva

SUBMITTER: Ravi K 

PROVIDER: S-EPMC6123935 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature