Showing retention factors for Quercetin in Onion [White], raw with the process microwaved Food Processing
Yield factor value: 0.93 (Potato, not-peeled, cooked by microwave, USDA_2010_SR23)
Retention factor (RF) = (Content After Processing / Content Before Processing) * Yield factor
Calculated Mean Retention Factor Value
| mean RF value | Min | Max | SD | n |
|---|---|---|---|---|
| 0.33 | 0.33 | 0.33 | 0.00 | 1 |
Original Retention Factor Values used to Produce Mean
Crozier, A., Lean, M.E.J., McDonald, M.S., Black, C. (1997) Quantitative analysis of the flavonoids content of commercial tomatoes, onions, lettuce and celery. Journal of Agricultural and Food Chemistry 45:590-595
| Retention Factor | Food Before Processing | Food After Processing | Content Before Processing | Content After Processing | Units |
|---|---|---|---|---|---|
| 0.33 | White onion - None | White onion - Microwaved (2.5 min at 800 W in a closed glass containing water) | 34.2 | 12.4 | mg/100 g fresh weight |