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

mean RF value min max SD n # of references
 
Polyphenols, total - Polyphenols, total - Polyphenols, total
Fruits and fruit products
Fruits - Berries Blackberry, raw, frozen 0.93 0.83 1.01 0.066 4 1
Raspberry [Unknown species], raw, frozen 0.97 0.72 1.24 0.15 16 1