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

mean RF value min max SD n # of references
 
Flavonoids - Anthocyanins - Pelargonidin 3-O-rutinoside
Fruits and fruit products
Fruits - Berries Blackcurrant, raw 1.18 0.49 1.64 0.45 5 1