title: Degradation of synthetic lignins and some lignin monomers by the yeastRhodotorula glutinis.
abstract: Rhodotorula glutinis degraded variously(14)C-labelled synthetic lignins in the presence of 0.1% glucose as co-substrate. Side chain-labelled DHP was degraded the most. While this yeastutilized vanillate and forulate for growth, sinapate/syringate were poorly or not degraded. Gallate, protocatechuate and acetate also supported growth. [carboxy-(14)C]Syringate was rapidly converted to(14)CO2 by the yeast only in presence of glucose while [carboxy-(14)C]vanillate did not require any additional cosubstrate for mineralization. Ring-labelled vanillyl alcohol was also dagraded proving that the yeast could rapidly metabolize guaiacyl structures while syringyl structures required the presence of additional energy sources.
authors.affiliation: Department of Microbiology, Panjab University, 160014, Chandigarh, India.
authors.forename: J K
authors.initials: JK
authors.lastname: Gupta
authors.forename: P
authors.initials: P
authors.lastname: Sharma
authors.forename: H W
authors.initials: HW
authors.lastname: Kern
authors.forename: H
authors.initials: H
authors.lastname: Sahm