A basidiomycetous yeast, Pseudozyma tsukubaensis, efficiently produces a novel glycolipid biosurfactant. The identification of a new diastereomer of mannosylerythritol lipid-B

作者: Tokuma Fukuoka , Tomotake Morita , Masaaki Konishi , Tomohiro Imura , Dai Kitamoto

DOI: 10.1016/J.CARRES.2007.11.023

关键词: YeastErythritolBiochemistryGenus PseudozymaMannosylerythritol lipidMoietyDiastereomerChemistryPseudozyma tsukubaensisStereochemistryGlycolipidOrganic chemistryAnalytical chemistryGeneral Medicine

摘要: Abstract Mannosylerythritol lipids (MELs) are glycolipid biosurfactants produced by the yeast strains of genus Pseudozyma. These compounds show not only excellent surface-active properties but also versatile biochemical activities. In course MEL production Pseudozyma tsukubaensis, we found an unusual that had a different carbohydrate structure from conventional MELs. The was identified as 1-O-β- d -mannopyranosyl- -erythritol, and confirmed to be 1-O-β-(2′,3′-di-O-alka(e)noyl-6′-O-acetyl- -mannopyranosyl)- -erythritol. Interestingly, configuration erythritol moiety in present opposite known MEL-B, 4-O-β-(2′,3′-di-O-alka(e)noyl-6′-O-acetyl- all MELs hitherto reported. should thus provide interfacial compared

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