Rose Essential Oil Extract New Technology Research And Animal Experiments To Explore

Roses are a kind of ornamental and economical plants, from which we can get rose extract and rose refined oil. These natural products can be acquired as superior perfume and food addition, so they are important commodities and can bring rich profit for merchants. In present, there are two main process methods to get rose extract and refined oil. One is steam distillation; the other is organic solvent extract. In this study super critical extract was used, on the base of traditional methods, to determine a efficient method for rose preservation, process and acquiring rose extract and refined oil. The result were showed as follows:1. The fragrance was abated after the rose flower had collected for a few hours. Saline water and alcohol were used respectively to immerse fresh rose under room temperature, then after 120 hours, the extracted rose refined oil product ratio was same to non-immersing fresh roses'. So it meant that saline water or alcohol immersing was a available method for preserving rose.2. In order to processed the rose in a primary way, Alcohol were used respectively to immerse fresh rose. And the suitable conditions were concentrated the alcohol immersing liquor after the rose had been immersed 24 hours.3.Ether and ligroin were used respectively to extract rose concentrated fluid. And afterthe fluid formed two layers, upper layer could be concentrated and became roseextract. The results were showed that the rose extract product ratios using or were 3%oand l%o respectively.4.Super critical COj extract was used to extract the rose crude oil. And using thesecond super critical extract, rose refined oil was acquired from the rose crude oil.The results were showed that the rose crude oil and rose refined oil product ratio usingsuper critical CO: extract was5%o and 1%0respectively, and the quality attainedFCC, 1981 standard.S.Rose refined oil ingredient which made by steam distillation and super critical CO:extract respectively was analyzed by GC/MS .The results were showed that they had57and 42 ingredients respectively, such as citronellol etc.6.After rose refined oil was extracted using super critical CO: extract, the content ofremains was examined. We found that both these remains of refined oil and extracthad plentiful flavones, and the contents were 55mg% and 71mg% respectively.7.The results of toxicological experiments were showed that rose refined oil was akind of soft drugs, which LDso was 15g/kg.bw.8. The results of sanitarian experiments were showed that rose flavones could leveldown the TC and TG and raise HDL-C lever.In conclusion, using super critical CC>2 extract to extract rose extract and refined oil is a efficient method, and has many good characters such as efficiency, safety, non-pollute, and so on.