Retention factor (RF) = (Content After Processing / Content Before Processing) * Yield factor

mean RF value min max SD n # of references
 
Phenolic acids - Hydroxycinnamic acids - p-Coumaric acid
Cereals and cereal products
Cereals Common wheat, whole grain flour 2.13 2.13 2.13 0 1 1
Common wheat, whole grain flour with bran 1.09 0.76 1.42 0.33 2 1