Formation and surface properties of microcapsules based on gelatin-sodium dodecyl sulphate interactions

Formation and surface properties of microcapsules, which are based on interaction of gelatin and sodium dodecyl sulfate (SDS) were investigated. It was found that microcapsules of oil droplets can be obtained at a specific range of SDS/gelatin concentration ratios. Both the amount of gelatin and SDS which were bound to the oil/water interface were maximal in this range, in agreement with Zeta-potential measurements and fluorescence microscopy performed for FITC labelled gelatin.