Showing retention factors for Quercetin in Tomato, ketchup with the process stored at room temperature Food Processing

Yield factor value: 1.0 (Any food, stored at room temperature, UNSPECIFIED)

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

Calculated Mean Retention Factor Value

mean RF value Min Max SD n
0.85 0.76 0.95 0.06 18

Original Retention Factor Values used to Produce Mean

Adefegha S.A., Oboh G. (2011) Enhancement of total phenolics and antioxidant properties of some tropical green leafy vegetables by steam cooking. Journal of Food Processing and Preservation 35:615-622
Retention Factor Food Before Processing Food After Processing Content Before Processing Content After Processing Units
0.91 Ketchup 1 Ketchup 1 - Stored 3 months at room temperature 0.05 0.05 mg/100 g fresh weight
0.93 Ketchup 2 Ketchup 2 - Stored 3 months at room temperature 0.06 0.05 mg/100 g fresh weight
0.94 Ketchup 3 Ketchup 3 - Stored 3 months at room temperature 0.06 0.06 mg/100 g fresh weight
0.92 Ketchup 4 Ketchup 4 - Stored 3 months at room temperature 0.02 0.02 mg/100 g fresh weight
0.93 Ketchup 5 Ketchup 5 - Stored 3 months at room temperature 0.06 0.05 mg/100 g fresh weight
0.95 Ketchup 6 Ketchup 6 - Stored 3 months at room temperature 0.06 0.06 mg/100 g fresh weight
0.83 Ketchup 1 Ketchup 1 - Stored 6 months at room temperature 0.05 0.04 mg/100 g fresh weight
0.85 Ketchup 2 Ketchup 2 - Stored 6 months at room temperature 0.06 0.05 mg/100 g fresh weight
0.85 Ketchup 3 Ketchup 3 - Stored 6 months at room temperature 0.06 0.05 mg/100 g fresh weight
0.84 Ketchup 4 Ketchup 4 - Stored 6 months at room temperature 0.02 0.02 mg/100 g fresh weight
0.85 Ketchup 5 Ketchup 5 - Stored 6 months at room temperature 0.06 0.05 mg/100 g fresh weight
0.88 Ketchup 6 Ketchup 6 - Stored 6 months at room temperature 0.06 0.05 mg/100 g fresh weight
0.76 Ketchup 1 Ketchup 1 - Stored 9 months at room temperature 0.05 0.04 mg/100 g fresh weight
0.77 Ketchup 2 Ketchup 2 - Stored 9 months at room temperature 0.06 0.04 mg/100 g fresh weight
0.76 Ketchup 3 Ketchup 3 - Stored 9 months at room temperature 0.06 0.05 mg/100 g fresh weight
0.80 Ketchup 4 Ketchup 4 - Stored 9 months at room temperature 0.02 0.02 mg/100 g fresh weight
0.80 Ketchup 5 Ketchup 5 - Stored 9 months at room temperature 0.06 0.04 mg/100 g fresh weight
0.80 Ketchup 6 Ketchup 6 - Stored 9 months at room temperature 0.06 0.05 mg/100 g fresh weight