Method for producing thermally modified starch blends

The present invention relates to a process for preparing a blend of at least two thermally modified starches wherein the starches are granular starches of different plant origin, comprising the steps consisting of: (i) preparing a starch milk containing at least two starches of different plant origin, the starch milk has a total dry matter content of between 30% and 40% by weight and preferably between 35% and 37% by weight, (ii) preparing a citrate buffer having a pH of between 4 and 6, preferably 6, and adding the citrate buffer to the starch milk to obtain a milk having a pH of between 4 and 6, preferably 6, (iii) ensuring a contact time of between 0.5 and 5 hours, (iv) drying until an equilibrium moisture content of 10% to 12% is reached, (v) heating to a temperature exceeding 150 DEG C for a residence time of between 10 minutes and 6 hours, (vi) resuspending, pH adjusting, optionally washing and drying again the thermally modified starch thus obtained. 本发明涉及一种用于制备至少两种热改性淀粉的共混物的方法，其中该淀粉是不同植物来源的颗粒状淀粉，该方法包括