Evaluation of Antioxidant Activities and Tyrosinase Inhibitory Effects of Ginkgo biloba Tea Extract

Table 3

Phytochemical constituents of G. biloba tea extract.

Phytochemical constituents	Inference
Tannins	+
Saponins	−
Flavonoids	+
Terpenoids	+
Steroids	−
Anthraquinones	−
Reducing sugars	+

(−) = negative test; (+) = positive test.