Calculated Mean Content Values
| Units |
Average |
Min |
Max |
Standard Deviation |
| mg/100 ml |
0.24 |
0.00 |
0.34 |
0.11 |
| mol/100 ml |
6.89e-07 |
0.00 |
9.60e-07 |
3.09e-07 |
Values calculated by aggregating data from 8
different samples
from
2 unique
publications.
Aglycone Mean Content Values
| Aglycone |
Units |
Average |
Min |
Max |
Standard Deviation |
| Caffeic acid |
mg/100 ml |
0.12 |
0.00 |
0.17 |
0.06 |
| mol/100 ml |
3.50e-07 |
0.00 |
4.88e-07 |
1.57e-07 |
Original Content Values Used to Produce Means
Rechner, A.R.; Wagner, E.; Buren van, L.; Put van de, F.; Wiseman, S.; Rice-Evans, C.A. (2002) Black tea represents a major source of dietary phenolics among regular tea drinkers. Free radical research 36:1127-1135
| Original Content Value |
Original Food Description |
Commercial Origin |
# of Samples Analyzed |
|
0.28 mg/100 ml
|
Black tea infusion brand 5 |
no |
3 |
|
0.27 mg/100 ml
|
Black tea infusion brand 6 |
no |
3 |
|
0.33 mg/100 ml
|
Black tea infusion brand 1 |
no |
3 |
|
0.20 mg/100 ml
|
Black tea infusion brand 7 |
no |
3 |
|
0.18 mg/100 ml
|
Black tea infusion brand 2 |
no |
3 |
|
0.19 mg/100 ml
|
Black tea infusion brand 3 |
no |
3 |
|
0.34 mg/100 ml
|
Black tea infusion brand 4 |
no |
3 |
Stewart A.J., Mullen W., Crozier A. (2005) On-line high-performance liquid chromatography analysis of the antioxidant activity of phenolic compounds in green and black tea. Molecular Nutrition and Food Research 49:52-60 PubMed (15602765)
| Original Content Value |
Original Food Description |
Commercial Origin |
# of Samples Analyzed |
|
0.00 mg/100 ml
|
Black tea infusion |
no |
1 |