Calculated Mean Content Values

Units Average Min Max Standard Deviation
mg/100 ml 0.06 0.02 0.10 0.04
mol/100 ml 4.11e-07 1.30e-07 6.49e-07 2.62e-07

Values calculated by aggregating data from 3 different samples from 1 unique publication.

Aglycone Mean Content Values

Aglycone Units Average Min Max Standard Deviation
Protocatechuic acid mg/100 ml 0.06 0.02 0.10 0.04
mol/100 ml 4.11e-07 1.30e-07 6.49e-07 2.62e-07

Original Content Values Used to Produce Means

McMurrough I., Roche G.G., Cleary K.G. (1984) Phenolic acids in beers and worts. Journal of the Institute of Brewing 90:181-187 PubMed (25664918)
Original Content Value Original Food Description Commercial Origin # of Samples Analyzed
0.07 mg/100 ml Beer, ale, British export B yes 1
0.02 mg/100 ml Beer, ale yes 1
0.10 mg/100 ml Beer, ale, British export A yes 1