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 [White], raw / Onion [White], boiled
Flavonoids
Flavonols Quercetin 0.22 0.22 0.22 0 1 1
mean RF value min max SD n # of references
 
Vegetables - Onion-family vegetables - Onion [White], raw / Onion [White], boiled
Polyphenols, total
Polyphenols, total Polyphenols, total 0.53 0.3 0.74 0.17 4 1