Preparation of starch esters with improved transparency, comprises bleaching carboxylic acid starch ester reaction mixtures with aqueous hydrogen peroxide in the presence of carboxylic anhydride

摘要

Preparation of starch esters with improved optical characteristics comprises bleaching carboxylic acid starch ester reaction mixtures with aqueous hydrogen peroxide in the presence of carboxylic anhydride, where the carboxylic acid is evaporated off at the same time as the temperature drops rapidly after the end of the reaction.