| Literature DB >> 17971725 |
Kunimitsu Kaya1, Louise F Morrison, Geoffrey A Codd, James S Metcalf, Tomoharu Sano, Hiroo Takagi, Takuya Kubo.
Abstract
A novel biosurfactant, 2-acyloxyethylphosphonate, was isolated from waterblooms of Aphanizomenon flos-aquae. Its structure was elucidated by chemical degradation and HRFABMS, GC/EI-MS and 1D- and 2D-NMR spectral analyses. The surfactant contained one mole of 2-hydroxyethylphosphonate and one mole of fatty acid, with hexadecanoic acid accounting for 84.1% of the total fatty acid content. The structure was confirmed by synthesis of 2-oleoyloxyethylphosphonate from ethylene oxide, phosphorus acid and oleic acid chloride. Considering the isolated surfactant molecule as hexadecanoyloxyethylphosphonic acid (mw. 364), the critical micelle concentration (CMC) was about 22 mM.Entities:
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Year: 2006 PMID： 17971725 PMCID： PMC6148651 DOI： 10.3390/11070539
Source DB: PubMed Journal: Molecules ISSN： 1420-3049 Impact factor: 4.411