From: Extraction Kinetics of phytochemicals and antioxidant activity during black tea (Camellia sinensis L.) brewing
Compound
EC50 for DPPH Assay
Gallic acid
1.38āĀ±ā0.04Ā Ī¼g/ml
Epicatechin
2.30āĀ±ā0.06Ā Ī¼g/ml
Epigallocatechin gallate
3.24āĀ±ā0.07Ā Ī¼g/ml
L-Ascorbic acid
3.30āĀ±ā0.27Ā Ī¼g/ml
Caffeine
>1.25Ā mg/ml