Method for preparing daucosterol palmitate from golden silk jujube and application of daucosterol palmitate

The invention discloses a method for preparing daucosterol palmitate from golden silk jujubes and application of daucosterol palmitate. The method comprises the following steps: by taking Ling golden silk jujube as a raw material, performing solvent extraction and extraction, performing primary separation by normal-phase silica gel column chromatography, and refining and purifying by reversed-phase column chromatography and gel column chromatography, thereby finally obtaining the high-purity daucosterol palmitate. An in-vitro antioxidant activity test shows that the compound has remarkable scavenging capacity on DPPH free radicals and shows good antioxidant activity. The daucosterol palmitate is separated from the golden silk jujube for the first time, and a new preparation way and a new biological source are provided for development and utilization of the daucosterol palmitate. The preparation method disclosed by the invention is simple, the yield of the target product is up to 1.0-1.5 per thousand, and the