Yield factor value: 0.86 (Berries, jam, FR,TK m.Z1, BOGNAR 2002_EUROFIR)

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

Calculated Mean Retention Factor Value

mean RF value Min Max SD n
0.68 0.65 0.71 0.03 2

Original Retention Factor Values used to Produce Mean

Howard L.R., Castrodale C., Brownmiller C., Mauromoustakos A. (2010) Jam Processing and Storage Effects on Blueberry Polyphenolics and Antioxidant Capacity. Journal of Agricultural and Food Chemistry 58:4022-4029 PubMed (20055410)

Retention Factor Food Before Processing Food After Processing Content Before Processing Content After Processing Units
0.71 Fresh blueberries Blueberry sugar jam 112.69 93.52 mg/100 g fresh weight
0.65 Fresh blueberries Blueberry sugar-free jam 112.69 85.96 mg/100 g fresh weight