[Gas chromatographic study of volatile fatty acids produced by 14 species of Pseudomonas]

A quantitative gas-liquid chromatographic method for the determination of the volatile fatty acids produced in standardized liquid culture media by Pseudomonas reference strains belonging to 14 species, some of medical interest, is proposed here. This method, using 14 reference strains, permitted a precise identification of Pseudomonas species according to characteristic chromatograms. The key used for this identification gave us a classification corresponding to the DNA homology groups.