Yield factor value: 1.0 (Asparagus, boiled, steamed FR/oZ, 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
1.53 1.07 1.91 0.30 4

Original Retention Factor Values used to Produce Mean

Fanasca S., Rouphael Y., Venneria E., Azzini E., Durazzo A., Maiani G. (2009) Antioxidant properties of raw and cooked spears of green asparagus cultivars. International Journal of Food Science and Technology 44:1017-1023

Retention Factor Food Before Processing Food After Processing Content Before Processing Content After Processing Units
1.07 Asparagus Asparagus boiling with 500 mL of water for 15 min at 90°C 29.33 31.49 mg/100 g fresh weight
1.91 Asparagus Asparagus boiling with 500 mL of water for 15 min at 90°C 16.28 31.24 mg/100 g fresh weight
1.63 Asparagus Asparagus boiling with 500 mL of water for 15 min at 90°C 26.38 43.19 mg/100 g fresh weight
1.50 Asparagus Asparagus boiling with 500 mL of water for 15 min at 90°C 19.27 28.92 mg/100 g fresh weight