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-glucosyl-rutinoside
Fruits and fruit products
Fruits - Berries Red raspberry, raw 1.2 1.03 1.36 0.17 2 1