In a method of preparing a liquid oat base a material comprising oat bran is suspended in an aqueous media and contacted with ct- amylase, - amylase, - glucanase, and xylanase to raise the concentration of soluble arabinoxylan by a factor of 5 or more. Also disclosed is a liquid oat base obtainable by the method a powderous oat base obtained by drying the liquid oat base uses of the liquid and powderous oat bases and food products comprising them. A powderous composition for use in preparing liquid oat base comprises oat bran , ct- amylase , -amylase, - glucanase , and xylanase.
