Enzymatic Hydrolysis of Inulin — An Alternative Way to Fructose Production

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Abstract
In the seventies large amounts of fructose have been produced from starch by isomerization of glucose. An alternative source of fructose is inulin, present as energy reserve in plants, e. g. from the composite family such as chicory and Jerusalem artichoke. To produce fructose from inulin a hydrolysis step is necessary. This can be performed by acids, but enzyme hydrolysis is preferable because of lower byproduct formation. An enzyme specially suited for industrial application is described. Full hydrolysis of inulin more than 98% (fructose and glucose) can be achieved at 60–65°C using economical dosages of enzyme. The reasons for the special efficiency of the enzyme are touched upon.