Yield factor value:
1.11
(Broccoli, boiled, FR m.S, edible part,
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 |
0.57 |
0.31 |
0.83 |
0.17 |
7 |
Original Retention Factor Values used to Produce Mean
Sikora E., Cieslik E., Leszczynska T., Filipiak-Florkiewicz A., Pisulewski P.M. (2008) The antioxidant activity of selected cruciferous vegetables subjected to aquathermal processing. Food Chemistry 107:55-9
Retention Factor |
Food Before Processing |
Food After Processing |
Content Before Processing |
Content After Processing |
Units |
0.83 |
Broccoli |
Broccoli, boiled for 12-15 min, until ready for consumption, at a temperature of around 100°C |
289.0 |
217.0 |
mg/100 g fresh weight |
Zhang D., Hamauzu Y. (2004) Phenolics, ascorbic acid, carotenoids and antioxidant activity of broccoli and their changes during conventional and microwave cooking. Food Chemistry 88:503-509
Retention Factor |
Food Before Processing |
Food After Processing |
Content Before Processing |
Content After Processing |
Units |
0.58 |
Brocoli - Florets |
Brocoli - Florets - Boiled conventional - 60 s |
34.5 |
18.1 |
mg/100 g fresh weight |
0.48 |
Brocoli - Florets |
Brocoli - Florets - Boiled conventional - 90 s |
34.5 |
15.2 |
mg/100 g fresh weight |
0.42 |
Brocoli - Florets |
Brocoli - Florets - Boiled conventional - 120 s |
34.5 |
13.2 |
mg/100 g fresh weight |
0.31 |
Brocoli - Florets |
Brocoli - Florets - Boiled conventional - 300 s |
34.5 |
9.7 |
mg/100 g fresh weight |
0.75 |
Brocoli - Florets |
Brocoli - Florets - Boiled conventional - 30 s |
34.5 |
23.6 |
mg/100 g fresh weight |
Gawlik-Dziki U. (2008) Effect of hydrothermal treatment on the antioxidant properties of broccoli (Brassica oleracea var. botrytis italica) florets. Food Chemistry 109:393-401
Retention Factor |
Food Before Processing |
Food After Processing |
Content Before Processing |
Content After Processing |
Units |
0.65 |
Broccoli |
Broccoli, florets boiled for 10 min |
270.0 |
160.0 |
mg/100 g fresh weight |