Abstract
Analysis was made on the composition of torula yeast, prepared from sulfite pulp waste liquor, using Torulopsis utilis, in order to elucidate the factor accelerating animal growth. Ethanol extract of torula yeast was fractionated and examination was made on several crystalline substances obtained. Besides D-galactose, ergosterol, and myristic acid, 1, 2, 3, 5, 6-penta-O-acetyl-α-D-galactofuranose was obtained in 0.11% yield. This is the first example of its presence in a natural product and it is interesting that a substance with so many acetyl groups had been found in nature.
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