title: [Triglycerides of saprophytic mycobacteria].
abstract: Triglycerides produced by mycobacteria and arthrobacteria grown in media with hexadecane or glucose were studied by mass spectrometry. In all of the cases, triglycerides were mixtures of homologues. The triglycerides of Arthrobacter ceroformans grown in a medium with hexadecane contained 90% of tripalmitate and 10% of a mixed triglyceride comprising two residues of palmitic acid and one residue of palmitoleinic acid. Mixed triglycerides containing one unsaturated acyl group prevailed in mycobacterial cells grown in a medium with hexadecane. The acyl groups were the residues of C14:0-, C14:1-, C16:0-, C16:1- and C17:1-acids. The position of various acyl residues in mixed triglycerides was established, and the proportions between homologues in a mixture were determined. The triglyceride fraction had a much more complicated composition when themycobacteria were grown in a medium with glucose: the quantity of the major components increased while the amount of the minor components was a complete series of homologues with the molecular weight from 776 to 888.
mesh_terms: D000473:Alkanes / Q000378:metabolism; D001173:Arthrobacter / Q000378:metabolism; D003470:Culture Media; D005947:Glucose / Q000378:metabolism; D013058:Mass Spectrometry; D008970:Molecular Weight; D009161:Mycobacterium / Q000378:metabolism*; D014280:Triglycerides / Q000032:analysis / Q000378:metabolism*
chemical_list: D000473:Alkanes; D003470:Culture Media; D014280:Triglycerides; C007932:n-hexadecane; D005947:Glucose
vernacular_title: Triglitseridy saprofitnykh mikobakteriĭ.