ABSTRACT
AIM To investigate the effects of frost-like powder,steaming,stir-frying with wine,stir-frying with salt-water and stir-frying with vinegar on compositions and contents of fatty oils in Descurainiae Semen.METHODS Descurainiae Semen was processed by five methods,respectively.The fatty oils were extracted from various processed products by petroleum ether,which were then derivatized.GC-MS was adopted in the qualitative identification and quantitative determination.RESULTS Except for frost-like powder,various processing methods could increase the extraction rate of fatty oils.Compared with raw product,the quantities of fatty oils in various processed products were decreased,together with the increased contents.The main compositions of obtained fatty oils were unsaturated fatty acids,whose contents in various processed products (except stir-frying with vinegar product) were higher than those in the raw product.CONCLUSION The effects of different processing methods on compositions and contents of fatty oils in Descurainiae Semen show obvious differences,among which the processing effect of stir-frying with vinegar is not satisfactory.
ABSTRACT
AIM: To optimize the best technique of making Semen Euphorbiae into frost-like powder. METHODS: Machine was developed equipped with temperature and pressure control. Pretreatment of Semen Euphorbiae, heating temperature and time were selected as factors,fat oil content,euphorbiasteroid and lathyrol diadetate benzozte as main levels,to evaluate the processing. RESULTS: The experiment showed that seeds of Semen Euphorbia were directly broken into powder and heated at 55 ?C for 30 min. The oil productivity ranged from 51% to 53% . CONCLUSION: The heating temperature has an influence on fat oil and laxative constitutents' content, whereas pretreatment of seed and heating time lack the relationship to.