Yield factor value: 1.0 (Any food, stored refrigerated, UNSPECIFIED)

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

Calculated Mean Retention Factor Value

mean RF value Min Max SD n
1.12 0.83 1.56 0.31 4

Original Retention Factor Values used to Produce Mean

Pérez-Gregorio M.R., Garcia-Falcon M.S. (2011) Flavonoids changes in fresh-cut onions during storage in different packaging systems. Food Chemistry 124:652-658

Retention Factor Food Before Processing Food After Processing Content Before Processing Content After Processing Units
0.83 Onion Onion, stored under vaccum in the absence of light, refrigerated conditions (1-2°C) 16.3 13.6 mg/100 g fresh weight
1.27 Onion Onion, stored in closed cup PS, in the absence of light, refrigerated conditions (1-2°C) 17.4 22.2 mg/100 g fresh weight
0.84 Onion Onion, stored in closed cup PET, in the absence of light, refrigerated conditions (1-2°C) 17.4 14.7 mg/100 g fresh weight
1.56 Onion Onion, stored in closed cup PS, in the presence of visible light, refrigerated conditions (1-2°C) 12.0 18.8 mg/100 g fresh weight