Rheological and pasting behavior of OSA modified mungbean starches and its utilization in cake formulation as fat replacer

Abstract

This research investigated the effectiveness of heat treated (120 °C for 1, 2, 3 h) OSA modified mungbean starches, as fat replacers in cake. Physicochemical, pasting, rheological properties of the modified starch and textural and sensorial attributes of cakes incorporated with OSA modified mungbean starch at 10, 20, 30 and 40% were evaluated. The pasting viscosity of the OSA modified mungbean starches was found to be higher when compared with native starch. Magnitude of G' and G″ was slightly increased with the increase of frequency. Modified starches showed lesser values for Peak G' as compared to native counterpart starch while reverse was observed for G″ value during heating. The cakes containing OSA modified mungbean starch a higher specific volume. The study concluded that cakes prepared from 30% OSA-MS possessed the best texture, desirable color and mouthfeel and thus, found to be highly acceptable as indicated by their overall quality score.

Keywords: Cakes; OSA starch; Pasting; Rheology; Sensory; Texture.