1 MethodsDetermination of flavonoids in lithocarpus polysachyus rehd leaves by three-wavelength spectrophotometry.

2 The paste properties of some lithocarpus starch have been studied with modern instruments such as polarizing microscope, spectrophotometer and circumvolve viscosity analyzer etc.

3 Objective: To investigate the cardiovascular effects of Lithocarpus polystachyus extracts.

4 Rubus suavissimus S. Lee and Lithocarpus polystachyus Rehd mainly contain the sweet taste constituents, the anti-allergic constituents and so on,[] both have anti-allergy function.

5 Conclusion: Lithocarpus polystachyus extracts have protective effects on some dysfunction of cardiovascular system.

6 The results indicated that lithocarpus starch has high gelatinization temperature, higher enzymatic hydrolyzation, lower clarity, better retrogradation and bad freeze-thaw stability.

7 Quercus spp. , Lithocarpus spp. and so on. It is imperative to prevent the disease from invasion to the regions.

8 About 450 species of this genus and 300 of Lithocarpus in the temperate zone, the subtropical zone and the tropics. Small quantities imported from Sabah, Sarawak and Indonesia.

9 Rubus suavissimus S. Lee can also control the sugar and lower blood fats and so on, other pharmacological action of Lithocarpus polystachyus Rehd are seldom studied.

10 Objective To explore the hypoglycemic actions of flavanoids from Lithocarpus litseifolius( FLL ) for future development of the natural resources in Guangxi province.