Because of their heterogeneity, thearubigins are difficult to be purified from black tea,which lead to the limited information on their structure,composition and characteristics.

Thearubigins are heterogeneous acidic phenolic pigments, which are the most abundant polyphenols in black tea.

Progress of study on tea pigment pharmacological activity;

Effect of tea pigment on serum and urine transforming growth factor-β1 in early stage of diabetic nephro-pathy;

Mechanism study of tea pigment on the selective against the colony growth of preneoplastic and normal Syrian Hamster embryo cells;

Study on manufacture technique of fat-soluble tea green pigment;

The manufacture processing of tea green pigment — sodium-zinc chlorophyllin(TGP-2) was studied by using expectant function approach for simultaneous optimization of several variable levels.

The stability of three tea green pigments was investigated in this paper.

Investigation on inhibitory effect of tea pigments on Mutans Streptococci;

Effects of tea polyphenols and tea pigments on apoptosis in HepG2 cell line;

Preparation and component analysis of tea pigments;

The objective was to extract green tea pigment from low baddish fannings of hangzhou green tea.