Table 1.

Composition (%) of green tea, black tea, and black tea infusion [21]

Compound	Green Tea*	Black tea*	Infusion*
Protein	15	15	trace
Amino acids	4	4	3.5
Fiber	26	26	0
Others carbohydrates	7	7	4
Lipids	7	7	trace
Pigments	2	2	trace
Minerals	5	5	4.5
Phenolic compounds‡	30	5	4.5
Oxidized phenolic compounds§	0	25	4.5

* Data refer to dry weight of tea leaves.

^† Infusion time: 3 minutes

^‡ Especially flavonoids

^§ Especially thearubigins and theaflavins