Calculated Mean Content Values

Units Average Min Max Standard Deviation
mg/100 ml 0.26 0.18 0.37 0.07
mol/100 ml 8.07e-07 5.59e-07 1.15e-06 2.25e-07

Values calculated by aggregating data from 6 different samples from 1 unique publication.

Aglycone Mean Content Values

Aglycone Units Average Min Max Standard Deviation
Gallic acid mg/100 ml 0.14 0.10 0.20 0.04
mol/100 ml 4.26e-07 2.95e-07 6.06e-07 1.19e-07

Original Content Values Used to Produce Means

Belleau G., Dadic M. (1979) Determination of tannic acid in beer by high performance liquid chromatography. Journal of the American Society of Brewing Chemists 37:175-179 PubMed (16366710)
Original Content Value Original Food Description Commercial Origin # of Samples Analyzed
0.37 mg/100 ml Beer, lager, American A yes 1
0.18 mg/100 ml Beer, lager, American B yes 1
0.26 mg/100 ml Beer, lager, American C yes 1
0.29 mg/100 ml Beer, lager, American D yes 1
0.28 mg/100 ml Beer, lager, European E yes 1
0.18 mg/100 ml Beer, lager, European F yes 1