| abstract |
The invention discloses a method for separating and extracting natural ferulic acid from oryzanol-containing rice bran oil soapstock. The method takes the oryzanol-containing rice bran oil soapstock as a raw material, and sequentially performs saponification, extraction and acid precipitation Separation, leaching, decolorization, purification, drying, and finally obtain natural ferulic acid with a content of ≥98%. The method has simple procedure, less loss, high extraction efficiency, low production cost, no toxic and harmful solvents are used in the production process, and no pollution to the environment. The content of the obtained product is more than 98%, the color is white, 10% ethanol is dissolved, clear and translucent, and there is no carbon spot after passing through 0.45um filter paper; the naturalness of the product can be determined by the internationally recognized isotope detection method, which meets the export requirements of developed countries such as Europe, America and Japan. |