Vitamin b13, antimildew, antiseptic and antibacterial substance

Abstract

Abstract PURPOSE: Residual cake after alkali washing of crude rice bran oil is incorporated with a monohydric lower alcohol under an acidic condition, the alcohol solution is neutralized and the solutes are extracted to obtain vitamin B 13 having antimildew, antiseptic and antibacterial activities. CONSTITUTION: Residual cake after alkali washing of crude rice bran oil is incorporated with a monohydric lower alcohol under acidic conditions and the insoluble substances are removed. The monohydric lower alcohol solution is neutralized and the substances soluble in a monohydric lower alcohol are extracted. Further the acetone-soluble substances are extracted therefrom. Finally the substances soluble in a monohydric lower alcohol except sodium are extracted, from which water is removed to give Vitamin B 13 of formula C 5 H 4 N 2 O 4 . Vitamin B 13 shows, when dissolved in water, characteristic absorption maxima at 205 and 280mμ of wave length and their molecular extinction coefficients are 10.7×10 3 (205mμ) and 7.52× 10 3 (280mμ) respectively. COPYRIGHT: (C)1980,JPO&Japio

Inventors

• 👤 Tomotaro Tsuchiya

Bibliographic Details