Calculated Mean Content Values
| Units |
Average |
Min |
Max |
Standard Deviation |
| mg/100 ml |
0.20 |
0.00 |
0.30 |
0.11 |
| mol/100 ml |
5.77e-07 |
0.00 |
8.47e-07 |
2.97e-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 |
0.10 |
0.00 |
0.15 |
0.05 |
| mol/100 ml |
2.94e-07 |
0.00 |
4.31e-07 |
1.51e-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 |
|
0.23 mg/100 ml
|
Black tea infusion brand 6 |
no |
3 |
|
0.29 mg/100 ml
|
Black tea infusion brand 1 |
no |
3 |
|
0.14 mg/100 ml
|
Black tea infusion brand 7 |
no |
3 |
|
0.13 mg/100 ml
|
Black tea infusion brand 2 |
no |
3 |
|
0.13 mg/100 ml
|
Black tea infusion brand 3 |
no |
3 |
|
0.30 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 |