| Abstract: | By aid of lipases, e.g. of Mucor michei, in n-hexane wax esters were produced from usual primary fatty alcohols and unusual hydroxy fatty acids (in part of microbial origin). Thus, (S)-17-hydroxyoctadecanoic acid dodecyl ester and (R)-3-hydroxy decanoic acid dodecyl ester were formed. In measurements of the film pressure using a LANGMUIR film balance the monolayers of both compounds indicated good stability compared to the non-hydroxy wax esters. Glycolipids de novo produced by microorganisms did not show suitable wetting properties, but they were able to lower ze surface tension of water to a higher extent than the unusual waxes. |
