| 摘要 |
PURPOSE: A strain, Aureobasidium sp. BRD-109(KCTC 10182BP) and a method for producing beta-glucan using the same are provided. The beta-glucan produced is extracellularly secreted, easily dissolved in water and easily purified. CONSTITUTION: A novel strain, Aureobasidium sp. BRD-109(KCTC 10182BP) producing thermostable and pH-stable beta-glucan is provided. A method for producing beta-glucan having the molecular weight of 100,000 to 5,000,000 dalton comprises the steps of: inoculating Aureobasidium sp. BRD-109(KCTC 10182BP) to a medium containing 1.0 to 5.0 wt.% of sucrose, 0.01 to 0.05 wt.% of sodium nitrate, 0.1 to 1.0 wt.% of kalium biphosphate, 0.05 to 0.50 wt.% of potassium chloride, 0.02 to 0.2 wt.% of magnesium sulfate and 0.001 to 0.01 wt.% of ferrous sulfate; and culturing the medium at 30 deg. C, 0.05 to 1.0 vvm and 150 to 300 rpm.
|
