The objective of this work was to determine surface properties of maltodextrines having a various saccharification degree and obtained using different technological processes. Furthermore, this work aimed at verifying the functionality of maltodextrines in emulsion systems by determining the rheological properties and the texture of low fat mayonnaises prepared from these maltodextrines. It was found that both in water/air and water/oil systems, maltodextrines demonstrate surface activity which is observed to increase with the rise of the hydrolysis degree. Replacing the traditional process of production by a hydrolysis carried out in extruder has a positive effect on surface properties of maltodextrines. Despite the a surface activity stated, maltodextrines do not show any emulsifying abilities, regardless of the saccharification degree and production method. However, they exhibit a varied effect on the examined proteins in such complex systems as low fat mayonnaises. As a consequence, mayonnaises made on the basis of different proteins and maltodextrines show a considerable diversity of their universal texture profile parameters and rheological properties, depending on the components used to prepare them. In spite of the observed diversity of properties, examined mayonnaises constitute pseudoplastic fluids in respect of rheological properties, and their viscosity could be described by means of the Ostwald de Waele’s empirical equation.
maltodextrines, extrusion, surface properties, emulsion, mayonnaises, texture, rheological properties