process for producing thermally inhibited non-pregelatinized granular starch, thermally inhibited non-pregelatinized granular starch and use of a thermally inhibited non-pregelatinized granular starch

摘要

A process for producing thermally inhibited starch, specifically thermally inhibited non-pregelatinized granular starch, which results in a visco-stable starch product is described. the process comprising providing an alkaline starch, specifically an alkaline non-pregelatinized granular starch, which has a pH of at least 8; subjecting the starch to a hydrothermal treatment, specifically to obtain a hydrothermally treated non-pregelatinized granular starch, said hydrothermal treatment being at a temperature of 45 to 200 ° C, with steam at a vapor pressure of 0.1 to 15 bar or with a gas mixture comprising water vapor at a partial water vapor pressure of 0.1 to 15 bar; dehydrating the starch, specifically hydrothermally treated non-pregelatinized granular starch, at a moisture content of 2% by weight or less and subjecting the starch to heat treatment by heating the starch to a temperature of 120 to 190 ° C. to obtain visco-stability; cool and optionally still process the starch.