ABSTRACT
Objective To investigate the volatile components of Hypericum perforatum L. from Shandong province. Method The volatile components were extracted by supercritical-CO2 fluid (SF-CO2) and the extracts were analyzed by GC and GC-MS. Results Forty-seven components were identified and Caryophyllene oxide, Spathulenol, Cyclododecane and Dodecanoic acid were found to be the major components of the essential oils. Conclusion The essential oil of Hypericum perforatum L. from Shandong China was significantly different from that grown in different areas of the world in major constituents. It is found that the chemical composition is influenced by various factors, such as geographical location, environmental conditions and agroclimatic requirements.
ABSTRACT
Object To study the application of macroporous resins to the purified active components of Picria fel-terrae Lour., Scutellaria baicalensis Georgi, and Phellodendron chinense Schneid. Methods With the purified active components of Chinese materia medica (CMM) as a standard, we selected the suitable macroporous resins and studied the optimum technological parameters of the adsorption and elution. Results The suitable three types of macroporous resins which were used to the purified active components of CMM were HPD500 for P. fel-terrae., HPD300 for S. baicalensis, and HPD100 for P. chinense. In the absorption course, when the ratios between the medicinal materials amount and the volume of macroporous resins were 1.5 for P. fel-terrae, 0.5 for S. baicalensis and 1 for P. chinense, the purified active components of CMM appeared leaking, and were no more absorbed when the ratios were 11 for P. fel-terrae, 2 for S. baicalensis and 4.75 for P. chinense. In the elution course, the optimum alcohol concentrations were 50% for P. fel-terrae, 30% for S. baicalensis and 50% for P. chinense. Conclusion It is obviously different to refine the active components of CMM, while using the diverse types of macroporous resins.