| Abstrakt: |
The volatile oil components from Pterocarpus macrocarpus Kurz was extracted by supercritical fluid extraction. The effects of extraction-temperature, extraction-pressure, and extraction-time on the extraction efficiency were investigated by single factor test; on this basis, the experiment was optimized by Box-Behnken response surface designed with three factors at three levels, and fitted the regression equation; and the volatile chemical constituents were separated and identified by GC/MS. The results showed that the optimum supercritical extraction technology of volatile oil from Pterocarpus macrocarpus Kurz was as follows: the temperature at 50 °C, the pressure at 25 MPa, and the time at 90 min. Under this condition, the volatile oil extraction rate was 3.92%, which was closed to the predicted value of the model. 22 components in the extract were identified by GC/MS, including agarospirol,β-eudesmol,7-(2-Hydroxypropan-2-yl)-1,4a-dimethyldecahydronaphthalen-1- ol,spathulenol, 3-(2,6,6-trimethyl-1-cyclohexen-1-yl)-2-Propen-1-ol,1,3,3-Trimethyl-2-(2-methyl-cyclopropyl)-cyclohexene, homopterocarpin, medicarpin, pterocarpin and 3, 9-dimethoxy-6H benzofuran [3, 2- C][1] benzopyran. [ABSTRACT FROM AUTHOR] |
