pseudomonas frederiksbergensis pseudomonas frederiksbergensis pseudomonas frederiksbergensis is a gram-negative, phenanthrene-degrading bacterium from a coal gasification site in frederiksberg, copenhagen, denmark. it is able to catalyse the asymmetric oxidation of sulfides to give exclusively the r enantiomer. the type strain is dsm 13022. pseudomonas frederiksbergensis scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: pseudomonadales family: pseudomonadaceae genus: pseudomonas species: p. frederiksbergensis binomial name pseudomonas frederiksbergensisandersen, et al. 2000