| abstract |
The invention relates to the use as surfactant, for the preparation ofndispersions of multiphase systems that comprise a continuous aqueousnphase containing a high concentration of electrolytes, of hydrophobicallynmodified saccharides of general formula (I) and (II)n [A]n(-M)s (I) [B] m (-M) s' (II) nwhereinn [A] n represents a fructan-type saccharide [B] m represents a starch-type saccharide (-M) represents a hydrophobic moiety that substitutes a hydrogen atomnof a hydroxyl group of the fructosyl and/or glucosyl units of the fructan-typenand starch-type saccharides, which is selected from the group consisting ofnan alkylcarbamoyl radical of formula R-NH-CO- and an alkylcarbonylnradical of formula R-CO- , wherein R represents a linear or branched,nsaturated or unsaturated alkyl group with from 4 to 32 carbon atoms, and s and s' , which can have the same value or not, represent the numbernof said hydrophobic moieties that substitute the fructosyl or glucosyl unit,nexpressed as average degree of substitution (av. DS) which ranges from 0.01nto 0.5. n The invention also relates to a method for the preparation and/ornstabilisation of dispersions of multiphase systems that comprise ancontinuous aqueous phase containing a high concentration of electrolytes,nby using as surfactant one or more hydrophobically modified saccharides ofngeneral formula (I) and/or (II) defined above. n Also dispersions of multiphase systems are disclosed that comprise ancontinuous aqueous phase containing a high concentration of electrolytesnand that comprise as surfactant one or more hydrophobically modifiednsaccharides of general formula (I) and/or (II) defined above. |