Method of the natural arbutin contained in natural products

摘要

The present invention relates to a natural arbutin isolation method comprising an extraction step of extracting natural arbutin contained in a natural product using water or an aqueous solution of acetonitrile. The present invention also provides a method for producing an extract, comprising the steps of: preparing an extract by mixing water or acetonitrile aqueous solution homogeneously with a natural product, extracting the extract by adding sodium chloride to the extract, homogenizing and filtering the product, and concentrating the filtrate obtained in the filtration step , And a purification step of suspending the concentrate obtained in the concentration step with distilled water and then refining the purified albutin.