Four triterpenes with the friedelane skeleton were isolated respectively from the root bar of Celastrus monospermus Roxb and stems of Catha edulis Forsk by CO 2 Supercritical Fluids.

Chemical constituents from barks of Garcinia tetralata;

The results indicate that the unsaturated fatty acid content of Celastrus angulatus seed oil is relative high,reaching 71.

Exploit and utilize of seed of fruit & vegetable;

Determine concentration of dissociative linolenic acid in Isodon seed by reversed phase HPLC;

The essential oil from Rabdosia nervosa seeds was extracted by steam distillation.

Analysis on import and export of bamboo and rattan;

Bamboo and rattan are important non-wood forest resources in the world.

Bamboo and rattan are important framework materials with traditional and modern characteristics,which are often used in floral design.

In the analysis of the four financial series, not only the bivariate series dependence is studied, but also the dependence structure of four variables is modeled using vines method, so the advantage of vine method of graph theory in multivariable dependence structure modeling can be proved.