T. Unno et al., ANALYSIS OF (-)-EPIGALLOCATECHIN GALLATE IN HUMAN SERUM OBTAINED AFTER INGESTING GREEN TEA, Bioscience, biotechnology, and biochemistry, 60(12), 1996, pp. 2066-2068
A method for analyzing the EGCg concentration in human serum was devel
oped bg using high-performance liquid chromatography with electrochemi
cal detection, EGCg was detected in human serum after the ingestion of
5 g of green tea powder (matsu-cha) dissolved in 200 ml of hot water.
The concentration of EGCg in the serum reached the highest level abou
t 2 h after ingesting the green tea, and then decreased.