Method for lowering organochlorine content in Ginseng extract
A ginseng extraction and organochlorine technology, which is applied to medical preparations, pharmaceutical formulations, plant raw materials and other directions containing active ingredients, can solve the problems of high organochlorine content and reduce ginseng extract, and achieves large internal and external specific surfaces and micropores. The effect of developed structure and excellent adsorption performance
Inactive Publication Date: 2010-12-29
JILIN AGRICULTURAL UNIV
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[0004] The purpose of the present invention is to provide a method for reducing the content of organic chlorine in ginseng extract, which is used to solve the problem of excessively high organic chlorine content in ginseng extract
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[0030] Soak fresh ginseng with high residual organic chlorine in water for 15 minutes, then wash to remove dirt and other debris; add 300mg / L calcium hypochlorite aqueous solution to soak for 40 minutes, adjust the pH to 3.5-4.5, the ratio of ginseng calcium hypochlorite aqueous solution is: 1 : 7; take out after soaking, and wash off residual calcium hypochlorite with water; Use 50% ethanol as extraction solvent, reflux extraction obtains ginseng extract; Add activated carbon in the ginseng extract, pH is adjusted to 6.0, and the rotating speed is 80 Stir for 20 minutes under the condition of rpm, then naturally settle for 40 minutes, the dosage of activated carbon is 0.3% of the ginseng extract; the settled supernatant is filtered with an activated carbon filter, and then the ginseng extract after removal of organic chlorine is obtained.
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The invention relates to a method for lowering organochlorine content in Ginseng extract, belonging to the field of modernization of traditional Chinese medicine. The invention solves the problem that the organochlorine content in the Ginseng extract is too high. The invention is characterized in that fresh Ginseng is soaked with calcium hypochlorite aqueous solution; then using ethanol as extraction solvent to backflow and extract to obtain Ginseng extract; adding activated carbon into the Ginseng extract to carry out agitation and adsorption; then carrying out natural precipitation, using an activated carbon filtering machine to filter the precipitated supernatant liquid to obtain the Ginseng extract having gone through the stripping process. The invention has the advantages that the calcium hypochlorite is used to oxidize and degrade poisonous pesticide macromolecules into nontoxic micromolecule organic matter prone to be dissolved in water without causing secondary pollution when being used; the activated carbon is agitated to further adsorb organochlorine residue. With the adopted method of the invention, the residue is lower than the national limitation standard and content of ginsenoside in the extract is not affected. The method of the invention is used to lower the organochlorine content in the Ginseng extract.
Description
Technical field: [0001] The invention belongs to the field of traditional Chinese medicine modernization and relates to a method for reducing the content of organic chlorine in ginseng extract. Background technique: [0002] my country has banned the application of organochlorine pesticides, but due to the long-term use of such pesticides in the past, soil residues have polluted ginseng. In addition, since ginseng is a perennial plant, after sowing or transplanting, it grows in the same place for a long time, and the pollution of ginseng by the residual organochlorine pesticides in the soil is stronger than that of other plants. [0003] Ginseng extract is mainly used in health care products, medicine, daily chemical industry and food industry, and its residual pesticides are an important index to measure the quality of ginseng, so it is very important to remove pesticide residues. The current method for removing pesticide residues is mainly CO 2 Supercritical extraction, ...
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IPC IPC(8): A61K36/258
Inventor 赵英王秀全赵岩蔡恩博刘学周
Owner JILIN AGRICULTURAL UNIV
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