Taxonomic group: bacteria / Actinobacteria
(Phylum: Actinobacteria)
NCBI PubMed ID: 16346110Journal NLM ID: 7605801Publisher: American Society for Microbiology
Institutions: Lehrstuhl für Biochemie und Biotechnologie, Technische Universität Braunschweig, Braunschweig, Germany
Lipophilic compounds of the culture suspension containing Rhodococcus erythropolis DSM43215 had surfactant properties when the bacteria were cultivated with n-alkanes as the sole carbon source. Thirteen main components from a dichloromethane-methanol extract of the R. erythropolis cultures were isolated and characterized to specify quantitatively their surfactant properties, e.g., minimum surface and interfacial tensions and critical micelle concentrations. The interfacial activity of the organic extract was dominated by α,α-trehalose-6,6'-dicorynomycolates which reduced interfacial tension from 44 to 18 mN/m. Phosphatidylethanolamines which were also present in the organic extract reduced the interfacial tension below 1 mN/m. The trehalose corynomycolates had extremely low critical micelle concentrations in high-salinity solutions, and the interfacial properties were stabile in solutions with a wide range of pH and ionic strength
glycolipids, Rhodococcus erythropolis, trehalose dimycolates
Structure type: oligomer
Location inside paper: Fig. 1
Compound class: glycolipid, trehalolipid
Contained glycoepitopes: IEDB_142488,IEDB_144998,IEDB_146664,IEDB_742521,IEDB_983931,SB_192
Methods: 13C NMR, 1H NMR, methylation, IR, GC-MS, TLC, GLC, chemical synthesis, alkaline hydrolysis, colorimetry, extraction, optical rotation measurement, HPTLC, elemental analysis, CC, cell growth, melting point determination, precipitation, centrifugation, determination of surface tension, anthrone-sulfuric acid assay, spectroscopy
NCBI Taxonomy refs (TaxIDs): 1833
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There is only one chemically distinct structure:
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