Efficient Production Of The Rare Sugar L-Gulose Using A Wheat-Bran Culture Extract Of Penicillium Sp. Ku-1

We found that L-gulose, a rare sugar, was produced from D-sorbitol efficiently, using a wheat-bran culture extract of the fungus Penicillium sp. KU-1 isolated from soil. The culture extract showed enzyme activity for the oxidation of b-sorbitol to produce L-gulose; a high production yield of approximately 94% was achieved.