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

mean RF value min max SD n # of references
 
Flavonoids - Isoflavonoids - Daidzein
Seeds
Soy and soy products Soy, tofu 3.25 2.58 3.66 0.4 5 2
Soy, burger, raw 2.52 2.06 2.75 0.33 3 1
Soybean, sprout, raw 0.22 0.22 0.22 0 1 1