Initial steps in the pathway for bacterial degradation of two tetrameric lignin model compounds.

@article{Jokela1987InitialSI,
  title={Initial steps in the pathway for bacterial degradation of two tetrameric lignin model compounds.},
  author={J K Jokela and Jukka Pellinen and Mirja Salkinoja-Salonen},
  journal={Applied and environmental microbiology},
  year={1987},
  volume={53 11},
  pages={2642-9}
}
We investigated the metabolic route by which a lignin tetramer-degrading mixed bacterial culture degraded two tetrameric lignin model compounds containing beta-O-4 and 5-5 biphenyl structures. The alpha-hydroxyl groups in the propane chain of both phenolic and nonphenolic tetramers were first oxidized symmetrically in two successive steps to give monoketones and diketones. These ketone metabolites were decomposed through C(alpha)(=O)-C(beta) cleavage, forming trimeric carboxyl acids which were… CONTINUE READING