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32 results about "Germacrone" patented technology

Germacrone is an antiviral isolate of Geranium macrorrhizum.

Zedoary root good quality and high output culture technique

The invention discloses a high quality and yield culture technology of curcuma zedoaria, which comprises the following steps: land selection and preparation, seed curcuma preparation, sowing, field management, harvesting and prevention and cure of plant diseases and insect pests. The technology of the invention is characterized in that: the rotation land or clay with neutral PH or micro acid in which curcuma zedoaria is not planted in the previous year is selected; prior to sowing, the rootstalk with two or three heads which has a diameter of more than 20mm and a length of more than 50mm, or a big curcuma which has the diameter of more than 15mm and the length of more than 70mm is selected as the seed curcuma, and the seed curcuma is sowed from May 20 to May 30 in a normal year; the planting density is 2700-3300 plants per mu with the row spacing of 0.45-0.50m; during sowing, fossias are dug in field, sowing is carried out according to the planting spacing of 0.45-0.50m. The bottom fertilizer is applied in the space between seed curcumas, and covering soil is carried out. The technology can improve the yield of the medicinal materials of zedoary root and radix curcume longae produced by curcuma zedoaria by 15%-20%, increase the content of curcuminoids, the content of germacrone, the content of naphtha by 15%-20%, 16%-20% and 10%-15% respectively, and increase the economic benefit by 15%-20%.
Owner:李敏

Application of germacrone in preparation of medicament for treating or preventing influenza viruses

The invention discloses application of germacrone in preparation of a medicament for treating or preventing influenza viruses. The cell toxicity of the germacrone on madin-darby canine kidney (MDCK) cells is detected, and the result shows that CC50 is more than 250 microns. The influence of the germacrone on the expression of three antigens and the influence of germacrone on virus genome reproduction are detected, and the result shows that the germacrone formulation inhibits the expression of the virus antigens and the virus genome reproduction with dependency. The virus activity resistant mechanism of the germacrone is preliminarily researched. The virus activity resistance stage of the germacrone in a single reproduction period of the influenza viruses is researched by administration experiments of different time, and the result shows that the germacrone has inhibiting effect on adsorption, entry and early reproduction of the viruses. Moreover, the virus activity resistance of the germacrone to amantadine medicament resistant strains, B-type influenza virus strains and A-type influenza virus H3N2 subtype strains is detected, and the result shows that the germacrone has virus activity resistance to the three kinds of virus strains. The germacrone has the effects of relieving cough, relieving asthma and the like.
Owner:陈绪林

Application of germacrone in preparation of medicament for treating or preventing influenza viruses

The invention discloses application of germacrone in preparation of a medicament for treating or preventing influenza viruses. The cell toxicity of the germacrone on madin-darby canine kidney (MDCK) cells is detected, and the result shows that CC50 is more than 250 microns. The influence of the germacrone on the expression of three antigens and the influence of germacrone on virus genome reproduction are detected, and the result shows that the germacrone formulation inhibits the expression of the virus antigens and the virus genome reproduction with dependency. The virus activity resistant mechanism of the germacrone is preliminarily researched. The virus activity resistance stage of the germacrone in a single reproduction period of the influenza viruses is researched by administration experiments of different time, and the result shows that the germacrone has inhibiting effect on adsorption, entry and early reproduction of the viruses. Moreover, the virus activity resistance of the germacrone to amantadine medicament resistant strains, B-type influenza virus strains and A-type influenza virus H3N2 subtype strains is detected, and the result shows that the germacrone has virus activity resistance to the three kinds of virus strains. The germacrone has the effects of relieving cough, relieving asthma and the like.
Owner:陈绪林

Technology for extracting Germacrone from Rhododendron thymifolium Maxim leaves with freezing method

The invention provides a technology for extracting Germacrone from Rhododendron thymifolium Maxim leaves with a freezing method and belongs to the technical field of extraction and separation of effective active ingredients of plants. The technology comprises steps as follows: the Rhododendron thymifolium Maxim leaves are smashed to form powder, and volatile oil is extracted with a vapor distillation method firstly; the volatile oil is dehydrated with anhydrous sodium sulfate and placed in a low-temperature environment for freezing, crystals are separated out and filtered, the crystals are dissolved with ethyl alcohol and recrystallized after being washed with ethyl alcohol, filtering and washing are performed again, and high-purity Germacrone is obtained. A high performance liquid chromatography analyzer determines that the purity of Germacrone extracted and separated with the technology is 95%-98%, the yield can be up to 0.20%-0.50%. The technology is simple, short in process, low in power consumption and cost and high in yield and product purity and requires simple equipment; water and ethyl alcohol are taken as solvents, so that the technology is environment-friendly and clean and has little pollution; industrial production can be realized.
Owner:NORTHWEST NORMAL UNIVERSITY
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