| 摘要 |
PROBLEM TO BE SOLVED: To eliminate a problem in which since a culture solution consisting essentially of β-1,3-1,6-glucan produced by a bacterium belonging to the genus Aureobasidium sp., etc., has a diluted concentration, when the culture solution is used as a food additive, it can hardly be determined and has difficulty in raising the concentration of component in a food. SOLUTION: Ethyl alcohol is added to a culture solution comprising β-1,3-1,6- glucan produced by a bacterium belonging to the genus Aureobasidium or β-1,3-1,6-glucan and fructo oligosaccharide as a main component so as to give >=60 vol.% ethyl alcohol. The precipitated aggregate is filtered and dried. The aggregate is dissolved in water and repurified with ethyl alcohol. |
