Calculated Mean Content Values

Units Average Min Max Standard Deviation
mg/100 ml 2.51 0.20 5.68 1.66
mol/100 ml 4.35e-06 3.46e-07 9.82e-06 2.88e-06

Values calculated by aggregating data from 11 different samples from 2 unique publications.

Aglycone Mean Content Values

Aglycone Units Average Min Max Standard Deviation
Procyanidin dimer B2 mg/100 ml 2.51 0.20 5.68 1.66
mol/100 ml 4.35e-06 3.46e-07 9.82e-06 2.88e-06

Original Content Values Used to Produce Means

Pascual-Teresa de, S.; Santos-Buelga, C.; Rivas-Gonzalo, J.C. (2000) Quantitative analysis of flavan-3-ols in Spanish foodstuffs and beverages. Journal of Agricultural and Food Chemistry 48:5331-5337 PubMed (11087482)
Original Content Value Original Food Description Commercial Origin # of Samples Analyzed
0.57 mg/100 ml Black tea infusion no 3
Luximon-Ramma A., Bahorun T., Crozier A., Zbarsky V., Datla K.P., Dexter D.T., Aruoma O.I. (2005) Characterization of the antioxidant functions of flavonoids and proanthocyanidins in Mauritian black teas. Food Research International 38:357-367
Original Content Value Original Food Description Commercial Origin # of Samples Analyzed
2.18 mg/100 ml Black tea - Brand "3-Pavillions" yes 1
4.00 mg/100 ml Black tea - Brand "Black Label" yes 1
5.68 mg/100 ml Black tea - Brand "Red Label" yes 1
3.36 mg/100 ml Black tea - Brand "Extra" yes 1
4.03 mg/100 ml Black tea - Brand "Ouvagalia" yes 1
4.18 mg/100 ml Black tea - Brand "Chartreuse" yes 1
3.48 mg/100 ml Black tea - Brand "Corson" yes 1
2.26 mg/100 ml Black tea - Brand "La Flora" yes 1
1.61 mg/100 ml Black tea - Brand "Buccaneer's Choice" yes 1
0.20 mg/100 ml Black tea - Fresh tea leaves infusion no 1