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

mean RF value min max SD n # of references
 
Flavonoids - Flavonols - Kaempferol
Vegetables
Cabbages Cauliflower, blanched 0.26 0.17 0.34 0.085 2 1
Broccoli, blanched 0.55 0.26 0.83 0.28 2 1