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Table 1 Composition (%) of green tea, black tea, and black tea infusion [21]

From: Beneficial effects of green tea: A literature review

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
  1. * Data refer to dry weight of tea leaves.
  2. Infusion time: 3 minutes
  3. Especially flavonoids
  4. § Especially thearubigins and theaflavins