Ma, Meng, Yang Junhui, Yang Yan and He of Institute of Biology of Shandong Academy of Sciences jointly invented a natural light yellow rose water and its preparation method? (Invention patent 201010224316.0) The invention relates to cosmetics, which is a pure natural pale yellow rose skin care water distilled from roses and rich in effective components of rose essential oil.
The preparation method of rose water comprises the following steps:
1. Remove impurities from roses, some of which are salted.
2. Put water 2-4 times the mass of flowers in the distillation equipment, heat it to boiling state with steam, and then put pickled flowers and flowers in turn.
3. Control the pressure and temperature of heating steam, the flow and temperature of cooling water, distillation intensity and other technological conditions, so that the distillation time is 120 minutes, and the quality of distillation fraction is equivalent to that of flowers.
4. The fraction collected for 35-50 minutes is natural light yellow green rose water.
5. The whole process of aseptic control of this product is characterized in that it is a natural skin care product rich in rose essential oil components, and this product is naturally distilled light yellow-green, without adding any substance, and the whole process is aseptic control, and there are no harmful microorganisms in rose aquatic products.
Refer to the above? Baidu encyclopedia-rose water