Isolation of I-Arabinose BY E. V. WHITE Methods for the isolation of 1-arabinose from natural sources have been described by several authors.' The procedure usually involves partial hydrolysis of a complex polysaccharide followed by fractional precipitation of portions more re- sistant to hydrolysis with alcohol and finally crystallization of the sugar from ethyl alcohol- water solution. The yield of arabinose is often low and the method is both tedious and expen- ...
