| abstract |
It is an object of the present invention to provide a pullulan-containing powder which is produced without a troublesome purification step by solvent precipitation or the like and which has a higher breaking strength than a conventional product when formed into a film, As a pullulan-containing powder prepared from a culture obtained by culturing a mutant strain of Aureobasidium pullulans belonging to a microorganism as a carbon source in a culture medium containing glucose and maltose without removing the coagulated carbohydrate, 75 vol% aqueous The ratio of the content of the contaminating saccharide contained in the crude carbohydrate fraction to the total amount of the carbohydrate contained in the whole powder, which is obtained by the anthrone-sulfuric acid method, which is composed of the pullulan fraction insoluble in methanol and the contaminating carbohydrate fraction available, By mass or less, and also contains mannitol, and a process for producing and using the same. |