Hydroxyl radical oxidation resulted in size-reduction of arabinoxylan (AX).
Crosslinked AX had enhanced bile acid-binding capacity.
Hydroxyl radical oxidation of AX reduced the water absorpriton of flour/AX blends.
Oxidative crosslinking of AX increased the water absorpriton of flour/AX blends.
Both oxidative treatments affected the pasting properties of flour/AX blends.