The new technological process for extracting danshensu and protocatechu-aldehyde from red sage root includes the following steps: pulverizing red sage root, treating with alkali liquor, water-extraction for three times, combining extracts, concentrating and spray-drying to obtain the dry extract of red sage root, also can make ethyl alcohol extraction of the above-mentioned concentrate before spray-drying treatment, then concentrating the ethanolic extract.

基于1个网页-相关网页