Extraction technology of active ingredients in plant Rhodiola and its function in cosmetics

Active ingredients in root of plant Rhodiola were extracted by water.The optimal processing conditions for the extraction were identified through orthogonal experimental design L9(34):root of plant Rhodiola was comminuted and sieved through 60 mesh screen;extraction temperature is 100 ℃;mass ratio of raw material to water is 1∶10;time for extraction is 10 min.The content of active materials Rhodioloside and total flovones were measured by HPLC and aluminum tri-chloride calorimetry.Anti-oxidizing capacity of the extract was measured in-vitro by using VC as positive reference material and the whitening capacity was measured in-vitro by tyrosinase inhibition test.Results showed that the extract can be used as additive for anti-aging or whitening cosmetics.