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

mean RF value min max SD n # of references
 
Vegetables - Onion-family vegetables - Onion [Unknown color], raw / Onion [Unknown color], blanched
Flavonoids
Flavonols Quercetin 0.53 0.53 0.53 0 1 1
Kaempferol 0.31 0.31 0.31 0 1 1