In addition to distinctive sensory and chemical properties of wholegrain flour, endosperm-rich fraction
and two differently prepared bran,
Stability of the rye bran made by an air-classification process
was inferior to the bran made by a conventional sieving process, despite similar content of phenolic compounds.
Changes in the development rate of rancidity and intensity of flavour were faster in the air-classified than in the sieved bran.