Triterpenoid saponins with hepatoprotective effects from the fresh leaves of .

The fresh leaves of (Araliaceae) have been used as a common wild vegetable for salad and soup, and also herbal tea by the local people living in its growing areas of Yunnan province, China. Detailed chemical investigation led to the identification of a new triterpenoid saponin, 3---L-arabinopyranosyl-28---D-glucopyranosyl-(1→6)---D-glucopyranosyl-3-hydroxyolean-12-ene-28,29-dioic acid () from the fresh leaves, together with 11 known compounds, including six triterpenoid saponins (-), two caffeoylquinic acid derivatives (-), and three flavonoid glycosides (-). Their structures were determined on the basis of spectroscopic analysis and acidic hydrolysis.

Phenolic Antioxidants from the Leaves of Camellia pachyandra Hu.

Camellia pachyandra Hu. is a species in Camellia sect. Heterogenea (Theaceae), whose leaves have been used for making tea and consumed by the local people living in Yunnan province, China.

Phenolic antioxidants from green tea produced from Camellia taliensis.

The chemical constituents of green tea prepared from the leaves of Camellia taliensis (W. W. Smith) Melchior (Theaceae) were investigated for the first time.