Calculated Mean Content Values

Units Average Min Max Standard Deviation
mg/100 ml 0.11 0.00 0.36 0.10
mol/100 ml 2.31e-07 0.00 7.75e-07 2.18e-07

Values calculated by aggregating data from 13 different samples from 3 unique publications.

Aglycone Mean Content Values

Aglycone Units Average Min Max Standard Deviation
Quercetin mg/100 ml 0.07 0.00 0.23 0.07
mol/100 ml 1.50e-07 0.00 5.05e-07 1.42e-07

Original Content Values Used to Produce Means

Schieber, A.;Keller, P.;Carle, R. (2001) Determination of phenolic acids and flavonoids of apple and pear by high-performance liquid chromatography. Journal of Chromatography A 910:265-73 PubMed (11999391)
Original Content Value Original Food Description Commercial Origin # of Samples Analyzed
0.03 mg/100 ml Apple juice - Jonagold no 1
0.06 mg/100 ml Apple juice - Elstar no 1
Gliszczynska-Swiglo A., Tyrakowska B. (2003) Quality of commercial apple juices evaluated on the basis of the polyphenol content and the TEAC antioxidant activity. Journal of Food Science 68:1844-1849
Original Content Value Original Food Description Commercial Origin # of Samples Analyzed
0.07 mg/100 ml Pure Apple Juice - Brand 5 - Fresh yes 4
0.07 mg/100 ml Pure Apple Juice - Brand 6 - Fresh yes 4
0.04 mg/100 ml Pure Apple Juice - Brand 7 - Fresh yes 4
0.36 mg/100 ml Pure Apple Juice - Brand 1 - Fresh yes 4
0.20 mg/100 ml Pure Apple Juice - Brand 2 - Fresh yes 4
0.08 mg/100 ml Pure Apple Juice - Brand 3 - Fresh yes 4
0.07 mg/100 ml Pure Apple Juice - Brand 4 - Fresh yes 4
Kahle K., Kraus M., Richling E. (2005) Polyphenol profiles of apple juices. Molecular Nutrition and Food Research 49:797-806 PubMed (23815505)
Original Content Value Original Food Description Commercial Origin # of Samples Analyzed
0.00 mg/100 ml Dessert apple - Juice - Granny Smith no 1
0.00 mg/100 ml Dessert apple - Juice - Golden Delicious no 1
0.00 mg/100 ml Dessert apple - Juice - Red Delicious no 1
0.00 mg/100 ml Dessert apple - Juice - Fuji no 1