Calculated Mean Content Values

Units Average Min Max Standard Deviation
mg/100 ml 1.14 0.79 2.32 0.66
mol/100 ml 2.45e-06 1.70e-06 5.00e-06 1.43e-06

Values calculated by aggregating data from 6 different samples from 2 unique publications.

Aglycone Mean Content Values

Aglycone Units Average Min Max Standard Deviation
Quercetin mg/100 ml 0.74 0.51 1.51 0.43
mol/100 ml 1.59e-06 1.11e-06 3.25e-06 9.31e-07

Original Content Values Used to Produce Means

Rossouw M., Marais J. (2004) The phenolic composition of South African Pinotage, Shiraz and Cabernet Sauvignon wines. South African Journal of Enology and Viticulture 25:94-104
Original Content Value Original Food Description Commercial Origin # of Samples Analyzed
1.64 mg/100 ml Red wine - South African - Shiraz yes 76
0.79 mg/100 ml Red wine - South African - Pinotage yes 100
0.86 mg/100 ml Red wine - South African - Cabernet Sauvignon yes 84
La Torre G.L., Saitta M., Vilasi F., Pellicano T., Dugo G. (2006) Direct determination of phenolic compounds in Sicilian wines by liquid chromatography with PDA and MS detection. Food Chemistry 94:640-650
Original Content Value Original Food Description Commercial Origin # of Samples Analyzed
1.75 mg/100 ml Red wine - Nero d'Avola - Sicile - 2002 yes 11
2.32 mg/100 ml Red wine - Merlot - Sicile - 2002 yes 5
2.28 mg/100 ml Red wine - Cabernet, Syrah, Petit-Verdot - Sicile - 2002 yes 6