Method for synchronously separating oleuropein and galuteolin from olive leaves

The invention discloses a method for synchronously separating and purifying oleuropein and luteoloside from olive leaves, which comprises the following steps: extracting the olive leaves with ethanol, recovering the ethanol to obtain a sample solution, adsorbing the sample solution with a resin column, eluting impurities with water, and concentrating to obtain the oleuropein and luteoloside. The upper phase of a ternary solvent system consisting of ethyl acetate, ethanol and water is used as a novel eluent, the organic solvent is recovered after elution, and spray drying is performed to obtain oleuropein with the content of more than 45% and the yield of more than 90%, and luteoloside with the content of more than 4.5% and the yield of more than 90%. The oleuropein and luteoloside with higher purity can be obtained by utilizing the novel eluent and carrying out resin treatment once, and the method is simple in process operation and suitable for industrial production. 本发明公开了一种从油橄榄叶中同步分离纯化橄榄苦苷和木犀草苷的方法，将油橄榄叶经过乙醇