Method for extracting agilawood liquid

Abstract

The invention discloses a method for extracting agilawood liquid, which comprises the following steps of: a, putting agilawood medicinal materials into a traditional Chinese medicine pulverizer, pulverizing into agilawood raw material powder with the average particle size of 50 meshes, and mixing ethanol which is 5 percent of the weight of the raw material powder as an entrainer with the raw material powder to obtain a raw material solution; b, introducing the raw material solution obtained in the step a into an extraction kettle, inputting supercritical carbon dioxide fluid into the extraction kettle, performing extraction at the extraction pressure of 30 MPa and the extraction temperature of 55 DEG C, and the extraction time being 3.5 h; c, the supercritical carbon dioxide fluid dissolved with the extract entering a rectifying column through a pressure reducing valve to be separated, the pressure of the rectifying column being 22 MPa, the temperature being 60 DEG C, the rectifying time being 4.5 h, and separating wax components, oleoresin and fatty oil with small solubility out at the bottom of the rectifying column; and d, the agilawood essential oil with high solubility and ethanol entering a separator along with the carbon dioxide fluid through a pressure reducing valve to be separated, the separation pressure being 10 MPa, the separation temperature being 50 DEG C, and the separation time beings 3 h.

Description

Technical field [0001] The present invention belongs to the technical field sinensis processing, and more particularly to a method for extracting liquid incense. Background technique [0002] Sinensis plant is Thymelaeaceae Aquilaria Aquilariasinensis (Lour) Gilg wood-containing resin, of "Chinese Pharmacopoeia" variety were contained, and qi is commonly used in clinical medicine. Its spicy, bitter, warm, spleen, stomach, kidney, with lower gas temperatures, the warm kidney yang function. Indications distension chest pain, vomiting, hiccups stomach, kidney gas against Chuanji. Incense containing a higher amount of volatile oil, with rich aroma, is the main component of volatile efficacy sinensis, volatile oil in an amount directly related to the quality of medicine. [0003] Steam distillation method is used to extract the volatile oils incense, it takes a long time, but could easily lead to damage to thermally unstable and easily oxidized constituents of volatile loss during ext...

AI Technical Summary

Problems solved by technology

In these two articles, the research on the total extraction process and component analysis of the fat-soluble components in Agarwood are focused on, and it is not possible to obtain high-quality Agarwood essential oil by applying supercritical CO2 extraction technology.

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