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

mean RF value min max SD n # of references
 
Flavonoids - Flavonols - Quercetin 3,4'-O-diglucoside
Vegetables
Onion-family vegetables Onion [Yellow], raw 0.79 0.79 0.79 0 1 1
Onion [Unknown color], raw 0.6 0.49 0.74 0.11 3 2