Aventis Research & Technologies Gmbh & Co Kg

Andreas Seiffert-St&ouml;ricko

Dieter Wullbrandt

Siegmund Lang

Andreas Brakemeier

The invention relates to sophoroselipids of formula (I) wherein R represents H, &mdash;CH CH , &mdash;CH CH CH , n is an integer number from 2 to 27, R and R represent, independently from each other, H or a group of formula (II), and R represents H or &mdash;OH. The invention also relates to a method for producing sophoroselipids of formula (I) wherein R , R , R and n have the aforementioned meanings and R represents &mdash;CH , &mdash;CH CH or &mdash;CH CH CH . According to this method, a yeast capable of secreting a sophoroselipid in the form of a lactone in the culture excess, is fermented in a culture medium containing a glycerin. a succinate, a mono-, di- and/or tri-saccharide and a lipid precursor, said sophoroslipid being then isolated from the culture solution. The inventive method is characterised in that the lipid precursor contains one or more 3-alkanols, 4-alkanols or an alkanone with a chain length from 6 to 30 carbon atoms or mixtures of said alkanoistalkanone. Furthermore, according to a variant of the aforementioned method for producing sophoroselipids of formula (I), wherein R , R , R and n have the meanings aforementioned and R represents &mdash;CH , &mdash;CH CH or &mdash;CH CH CH , the culture medium is maintained during fermentation under a reduced oxygen concentration. The new sophoroselipids may be used, e.g., as surfactants, cosmetics, disinfecting agents or pharmaceutical products.

Growing community of inventors

Hofheim, Germany

Andreas Seiffert-Störicko

Growing community of inventors

Hofheim, Germany

Andreas Seiffert-St&ouml;ricko

Andreas Seiffert-Störicko