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

mean RF value min max SD n # of references
 
Fruits and fruit products - Fruits - Berries - Strawberry, jam, frozen / Strawberry, jam, frozen, stored frozen
Phenolic acids
Hydroxybenzoic acids Ellagic acid 0.88 0.82 0.98 0.071 3 1