Abstract: A method for purifying pullulan which comprises cultivating a strain of Aureobasidium pullulans in a liquid medium, removing the cells from the culture broth, precipitating pullulan present in said broth with at least one solvent selected from the group consisting of alcohols, esters and ethers respectively with three or more carbon atoms and ketones with four or more carbon atoms to recover, and then dehydrating and/or drying the recovered pullulan.

Abstract: A continuous method for purifying pullulan characterized in that two or more tanks containing aqueous solvent solutions of different concentrations are installed in a series wherein the solvent concentrations are always kept lower than the one following, and comprising successively ejecting an aqueous pullulan solution into the first tank to form a mixture wherein pullulan particles are suspended keeping the aqueous solvent solution constantly at a higher concentration than that necessary for precipitating the pullulan particles, separating the pullulan particle suspension from the mixture, transferring the separated pullulan particle suspension into an adjoining tank, repeating such steps, at least once, to dehydrate the pullulan particles and then successively recovering the dehydrated pullulan in a power form from the last tank.

Abstract: The present invention relates to a process for the preparation of sucrose-containing sweeteners or sucrose-containing foods and drinks, which is characterized in adding maltitol and/or lactitol to the ingredient sucrose to reduce the calorie value of such products and in the fact that intake of such products will inhibit increments of blood and liver saccharides and cholesterol levels.