A method for the production of an arabinoxylan-enriched preparation from a pentosan fraction derived from a wheat flour comprising the following sequential steps: mixing the pentosan fraction with water to obtain a pentosan slurry centrifuging the slurry to obtain liquid and solid phases and drying the liquid phase to provide the arabinoxylan-enriched preparation. Also provided are methods for the production of: a starch- and protein-enriched intermediate from wheat flour a glucose-enriched preparation from wheat flour and a starch- and protein-enriched material from wheat flour. Furthermore, there is provided a use of an arabinoxylan-enriched preparation in one or more of: food, immune stimulants, prebiotics, nutraceuticals, pharmaceuticals and food supplements. There is also an apparatus for the production of an arabinoxylan-enriched preparation from a pentosan fraction of wheat flour.
