Method of modifying starch.

摘要

A preferably continuous process for gelatinising and chemically modifying starch comprises; providing an aqueous slurry of starch and gelatinising the starch therein; mixing the starch with a reagent therefor and subjecting the mixture, during or after gelatinisation, to ultra-high frequency radiation (preferably 2450 MH2) to chemically modify the starch. The starch may be subjected to the radiation, e.g. under the conditions of gelatinisation or after application of a starch glue to a paper sheet.