[Characterization of sediment of water extract of Guizhi decoction and its effect on relevant compound (fractions) in decoction].

In order to study the effect of sediment of water extract of Guizhi decoction on the stability, clarity and peaks area, and characterize the chemical composition of the sediments, HPLC and MS methods were established. Through comparison of the common peak areas and the turbidity value of water extract and filtrate, the sediments could greatly change the common peak areas of the decoction (for more than 5 times of the study standard); at the same time, the turbidity value of the decoction could increase by （38.66±1.

[Studies on the chemical constituents of Xanthoceras sorbifolia].

Objective: To study the chemical constituents of Xanthoceras sorbifolia for explaining the active compounds.

Methods: The constituents were isolated by silica gel column chromatography. Sephadex LH-20, MCI et al and the LC-MS-MS, 1H-NMR, 13C-NMR, CD spectroscopic analysis were employed for the structure identification.

[Research and development of Fructus Gardeniae].

Survey on research and development of Fructus Gardeniae in the recent 10 years. Gardenia yellow has been used for food colorent, medicine, feedingstuff and cosmetic. Garnedia blue has been used for developing another pigment with red and yellow.