| Abstract: | The influence of sodium chloride, sucrose and pH on the pasting characteristics of corn starch phosphate monoesters (SPM) with different degrees of substitution (D.S.) were investigated. The SPM with D.S. of 0.055 showed a marked decrease of the initial viscosity with an increase of sucrose concentration up to 55%. The opposite effect was observed for the SPM with D.S. of 0.113 and 0.147. All the SPM presented a higher final viscosity with an increase of sucrose concentration. A significant decrease of the initial viscosity and of all other pasting characteristics of the initial viscosity and of all other pasting characteristics was noted in the presence of sodium chloride. The phosphated starches were not stable in acidic medium and showed some reduction of their pasting characteristics in alkaline medium. |
