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

mean RF value min max SD n # of references
 
Flavonoids - Isoflavonoids - Daidzin
Seeds
Soy and soy products Soy, tofu 2.94 2.43 3.19 0.28 5 2
Soy, burger, raw 2.6 2.29 2.75 0.22 3 1
Soybean, sprout, raw 0.22 0.22 0.22 0 1 1