A process for extraction of ferulic acid present in an aqueous phase, obtained by treatment of at least one plant material, and also containing polysaccharides, is described, said process comprising at least the following steps: 1) the treatment of said plant material followed by a solid/liquid separation to recover a solid phase and an aqueous liquid phase comprising the ferulic acid and said polysaccharides, 2) the treatment of said liquid phase to selectively separate, on the one hand, the polysaccharides and, on the other hand, the ferulic acid present in an aqueous fraction, 3) the concentration of said aqueous fraction containing the ferulic acid so as to recover a ferulic acid-concentrated stream, 4) the recovery of the ferulic acid in solid form.

Optimized process for extraction of ferulic acid with pretreatment

The invention discloses a process for extracting and purifying ferulic acid from angelica cartilaginomarginata Nakai. The process comprises the steps of smashing a raw material, namely angelica cartilaginomarginata Nakai; then, extracting by using an ultrasonic continuous countercurrent extractor and by taking hot water as a solvent to obtain a water extracting solution; centrifuging the obtained water extracting solution, and collecting the centrifugate; next, concentrating the centrifugate, dissolving a concentrate by using methanol, then, filtering, and collecting a methanol solution; adding petroleum ether into the methanol solution, uniformly stirring, then, standing for layering, collecting a methanol layer, separating ferulic acid from the methanol layer by using a simulated moving bed chromatographic separation technology, and purifying the ferulic acid. By using the process, finished products of the ferulic acid, which have the yield of over 75% and the purity of over 95%, can be obtained.

Process for extracting and purifying ferulic acid from angelica cartilaginomarginata Nakai

The invention discloses a method for extracting active ingredients of angelica sinensis in a Yimu biochemical mixture, wherein the problems of the prior art that different medicinal materials are mixed and extracted by the same extraction method and consequently the extraction effects of active ingredients in the medicinal materials are different and the raw materials are extremely wasted are solved. The method disclosed by the invention comprises the following steps: (1) breaking angelica sinensis into particles with particle sizes of 1.8-2.3mm; (2) soaking the particles in a container with over 99% ethanol for 6-12h, adding distilled water so that the ethanol concentration reaches 80-85%, and further soaking for 12-24h; (3) obtaining the soaking liquid, filtering, and performing hot-bath recycling of ethanol in the soaking liquid to obtain extraction liquid; and (4) washing the extraction liquid with distilled water, filtering, and drying and concentrating to obtain active ingredients of angelica sinensis. The method disclosed by the invention has the advantages of high yield, high efficiency, good effect and the like.

Method for extracting active ingredients of angelica sinensis in Yimu biochemical mixture

The invention relates to the field of processing of natural products, in particular to an angelica sinensis effective component extracting method and extracts of angelica sinensis. According to the angelica sinensis effective component extracting method, in the same production technology, multiple kinds of effective components in the angelica sinensis are extracted separately, the limitation of single target product extraction and separation is gotten rid of, the utilization rate of an angelica sinensis raw material is greatly improved, the extraction cost is reduced, moreover, the technologyis simple, operation is simple and convenient, and the equipment requirements are low. Enzymolysis is used for assisting in extraction, the ferulic acid extraction efficiency nearly doubles, moreover,on the premise of controlling parameters of aqueous extraction and alcohol extraction, for extraction of flavone and ligustilide, the solvent dosage is reduced, good yields are obtained, and the angelica sinensis effective component extracting method has significant economic values.

Zhang Xinguo

Papers

Extraction method of effective components of Chinese angelica