title: Transformation of cholic acid by Arthrobacter simplex.
abstract: Fermentation of cholic acid with Arthrobacter simplex (IICB 227) under aerobic conditions yielded 3,12-dioxo-23,24-dinorchola-4,6-dienoic acid, 7 alpha-hydroxy-3,12-dioxo-23,24-dinorchol-4-enoic acid, 3 alpha, 7 alpha-dihydroxy-12-oxo-5 beta-cholan-24-oic acid, 3 alpha, 7 alpha-dihydroxy-12-oxo-5 beta-23,24-dinorcholan-22-oic acid, 7 alpha, 12 alpha-dihydroxy-3-oxo-5 beta-cholan-24-oic acid, 7 alpha-12 alpha-dihydroxy-3-oxo-4-cholenoic acid, 7 alpha, 12 alpha-dihydroxy-3-oxo-23,24-dinorchol-4-enoic acid, and methyl-3 alpha-7 alpha, 12 alpha-trihydroxy-5 beta-cholan-24-oate in addition to a new metabolite 2 beta-hydroxy-3,12-dioxo-23,24-dinorchola-4,6-dienoic acid. Each microbial metabolite was characterized by the application of various spectroscopic methods. The availability of some of the metabolites' enabled complete elucidation of their 13C NMR spectra.
authors.affiliation: Indian Institute of Chemical Biology, Calcutta.
authors.forename: E
authors.initials: E
authors.lastname: Mukherjee
authors.forename: S
authors.initials: S
authors.lastname: Banerjee
authors.forename: S B
authors.initials: SB
authors.lastname: Mahato
mesh_terms: D000332:Aerobiosis; D001173:Arthrobacter / Q000378:metabolism*; D019826:Cholic Acid; D002793:Cholic Acids / Q000378:metabolism*; D002942:Circular Dichroism; D005285:Fermentation; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D011549:Pseudomonas / Q000378:metabolism; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet
chemical_list: D002793:Cholic Acids; D019826:Cholic Acid