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

mean RF value min max SD n # of references
 
Flavonoids - Anthocyanins - Cyanidin 3-O-glucosyl-rutinoside
Fruits and fruit products
Fruits - Berries Blackberry, raw, frozen 1.1 1.04 1.22 0.072 4 1