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641 results about "Artemisia annua" patented technology

Artemisia annua, also known as sweet wormwood, sweet annie, sweet sagewort, annual mugwort or annual wormwood (Chinese: 黄花蒿; pinyin: huánghuāhāo), is a common type of wormwood native to temperate Asia, but naturalized in many countries including scattered parts of North America.

Biological pesticidal organic fertilizer and preparation method thereof

InactiveCN103724139ASimple structureAddress organic matter declineFertilizer mixturesPaulownia coreanaNematode
The invention discloses a biological pesticidal organic fertilizer and a preparation method thereof. The biological pesticidal organic fertilizer is prepared from the following raw materials in parts by weight: 40-50 parts of pig manure, 20-30 parts of tea seed pulp, 10-15 parts of coffee grounds, 8-12 parts of paulownia sawdust, 5-10 parts of phosphogypsum, 4-8 parts of corn cob, 5-10 parts of pepper seed cake, 10-15 parts of mushroom dreg, 8-12 parts of wheat bran, 15-20 parts of bentonite, 10-15 parts of opoka, 2-3 parts of ferrous sulfate, 1-2 parts of manganese sulfate, 3-5 parts of humic acid, 1-2 parts of chinese tallow tree root and bark, 2-3 parts of sophora alopecuroides, 1-2 parts of stemona, 1-3 parts of Artemisia annua, 1.5-2.5 parts of ailanthus leaf, 2-3 parts of derris and 1-2 parts of Radix Euphorbiae Ebractealatae. The organic fertilizer disclosed by the invention has multiple effects of providing nutrients, improving the soil structure, preventing and treating pests and diseases and the like, can promote the crops to quickly grow, enhances the stress tolerance of the crops, can have favorable preventing and treating effects on nematodes and soil insects, reduces or avoids use of chemical pesticides, enhances the soil fertility, regulates the ecological equilibrium of soil, improves the quality of agricultural products, has no chemical residues, and implements yield increase and income increase of agricultural products.
Owner:青岛米品品服装有限公司

Technical new method for extracting artemisinin from sweet wormwood plants by ultrasonic assistance

The invention relates to a novel process method for utilizing the ultrasonic wave to extract the artemisinin from the artemisia annua Linn. By adopting the orthogonal experimental design, the method obtains the target compounds through a plurality of technical parameters in the process of screening and extraction. The stems and leaves of the artemisia annua Linn serving as the materials and 80 per cent ethanol are added in an ultrasonic extraction batch at a ratio of solid to liquid (Kg:L) ranging from 1 to 15 to 1 to 17; a separate-excited ultrasound generating device and a radial vibration columnar transducer are adopted; the ultrasonic power is 1000W, the ultrasonic frequency is 35kHz, the extraction is carried out for one time at two minutes interval with an action time of 3 minutes and the total extraction time is 30min; the temperature is 40 DEG C; the mixtures in the ultrasonic extraction batch are subject to the air-lift type stirring and the extract is put into the ultrafiltration, and the filtrates in equivalent volume are subject to the petroleum ether ultrasonic extraction at a temperature ranging from 30 DEG C to 60 DEG C on the conditions that the separate-excited ultrasound generating device and the radial vibration columnar transducer are adopted with an ultrasonic power of 1000W and a ultrasonic frequency of 30kHz and the ultrasound has a continous effect for 10 minuts with a total extraction time of 15 minutes at a temperature of 25 DEG C; the air-lift type stirring is carried out, the ether extraction liquid is decolored by the activated carbon and concentrated by reducing the pressure and then the obtained solution is cooled down to be crystalized; 50 per cent ethanol is recrystalized. The extraction rate of the artemisinin from artemisia annua Linn is 97.25 per cent.
Owner:NINGBO INST OF TECH ZHEJIANG UNIV ZHEJIANG

Traditional Chinese medicinal preparation for stopping bleeding and disinfecting

The invention discloses a traditional Chinese medicinal preparation for stopping bleeding and disinfecting, which is prepared from the following traditional Chinese medicinal materials by weight: 2-8 parts of Panax notoginseng, 2-8 parts of Flos Lonicerae, 2-6 parts of ciliate desert-grass, 2-6 parts of Artemisia argyi leaf, 1-5 parts of Corydalis yanhusuo, 1-5 parts of Imperata cylindrica root, 2-6 parts of Salvia miltiorrhiza, 1-4 parts of Ramulus Uncariae Cum Uncis, 1-4 parts of Angelica dahurica, 1-5 parts of Portulaca oleracea, 1-3 parts of Herba Taraxaci, 0.5-1.2 parts of Fuligo Plantae, 1-3 parts of Artemisia annua, and 1-3 parts of borneol. The traditional Chinese medicinal preparation for stopping bleeding and disinfecting is appropriate for cleaning and disinfecting the wound of skin, mucosa or tissue in a general surgical operation and stopping bleeding and disinfecting the traumatic wound. The traditional Chinese medicinal preparation of the invention is used to stop bleeding of the wound, resists infection, has remarkable curative effect, is fast to stop bleeding with no secondary infection of the wound, and has no toxic and side effects and no irritation. The effective rate is 100% and no scars are left after recovery. The medicines adopted by the invention are all folk herbs in China and convenient to pick up, and low in cost.
Owner:尹华山

Method for improving artemisinin content in artemisia annua L through transferring allene oxide cyclase (AOC) gene

The invention belongs to the technical field of biology, and relates to a method for improving artemisinin content in artemisia annua L through transferring allene oxide cyclase (AOC) gene. The method is characterized by: cloning the AOC gene from the artemisia annua L; constructing a plant expression vector containing the AOC gene; transferring the AOC gene into the artemisia annua L through adopting agrobacterium tumefaciens mediation, and regenerating plants; detecting integration situations of the exogenous target gene AOC through PCR, detecting the artemisinin content in the transgenic artemisia annua L through a high performance liquid chromatography and a evaporative light scattering detector; carrying out screening to obtain the transgenic artemisia annua L plants with improved artemisinin content. The artemisinin content in the transgenic artemisia annua L provided by the present invention is substantially improved, the artemisinin content in the non-transformed normal artemisia annua L is 1.53 mg/gDW while the artemisinin content in the AOC-transferred artemisia annua L is up to 10.17 mg/gDW, such that the artemisinin content in the AOC-transferred artemisia annua L is 6.65 times as much as the artemisinin content in the non-transformed artemisia annua. Therefore, with the present invention, a method for improving the artemisinin content in the artemisia annua L t is provided, base for producing the artemisinin on a large scale through the transgene is established.
Owner:SHANGHAI JIAO TONG UNIV

Method for artificially culturing artemisia annua linn in high altitude areas

The invention relates to a method for artificially culturing artemisia annua linn in high altitude areas and belongs to the technical field of agricultural science. The method mainly comprises the followings steps: the diameter of soil particles of a seedbed is smaller than 0.2cm, the width of furrow is 100cm, the height thereof is 15 to 20cm and the length is 5 to 10m; the seeding time is the end of February to early March and the seeding quantity is 200g/mu; transplanting is carried out when the temperature of the seedbed is 15 DEG C to 30 DEG C, the humidity is 40 to 50 percent, the height of the plant is 10 to 15cm and the length of the root is more than 5cm; the center width of a ridge and furrow is 0.8 to 1m and the depth of the ridge and furrow is 30 to 40cm; the spacing between rows is 0.40*0.80m or 0.50*1.0m and 1300 or 2000 artemisia annua linn is planted in each mu; 0.7si of plastic film are used for mulching the artemisia annua linn along furrow surface after permanent planting; seeds are compensated after ten days, watering is carried out for once to twice everyday, and after transplanting for 7 days, 10 to 15kg of fertilizers are applied for each mu or 0.3 percent of liquid fertilizers are poured and applied; the humidity of the field in seedling stage is kept between 60 and 70 percent; additional fertilizer are applied for twice; 5 to 10kg of N.P.K compound fertilizer is used in squaring stage; and pouring and applying are carried out after 1000kg of water is watered. The invention has simple and convenient operation of the method and short seedling stage, can effectively improve the yield of artemisia annua linn and the content of active components and is suitable for artificial culturing of artemisia annua linn in the areas with altitude more than 1900m.
Owner:INST OF MEDICINAL PLANTS YUNNAN ACAD OF AGRI SCI

Chinese herbal medicine biological prevention and control method for Chinese chive maggots

The invention provides a Chinese herbal medicine biological prevention and control method for Chinese chive maggots, and belongs to the technical field of biological prevention and control of insect attack. The Chinese herbal medicine biological prevention and control method for Chinese chive maggots is characterized in that biological prevention and control of the Chinese chive maggots is implemented by Chinese herbal medicines, the Chinese herbal medicines mainly comprise 19 Chinese medicines including Folium Ginkgo, Pericarpium Granati, Pericarpium Zanthoxyli, Herba Chenopodii, Cortex Acanthopancis, Semen Arecae, Flos Chrysanthemi Indici, Folium Artemisiae Argyi, Folium Ricini, Radix Strophanthi Divaricati, Gelsemium elegans Benth., leaf of Folium seu Cortex Nerii, Flos Caryophylli, Cortex Meliae, Fructus Quisqualis, Radix Sophorae Flavescentis, Artemisia annua L., Polygonum hydropiper L., Herba Houttuyniae and the like, water extracts of the 19 Chinese medicines and chitosan form chelate, the chelate and the pulverized Chinese medicine residues are applied to a Chinese chives field together, so that the Chinese chive maggots can be prevented and controlled effectively, the chelate and the pulverized Chinese medicine residues are toxic-free and do not have pesticide residues, people can eat assured and safe Chinese chives, and economic benefit, social benefit and ecological benefit are remarkable.
Owner:TAIAN ACAD OF AGRI SCI

Environment-friendly mosquito-repellent incense and preparation method thereof

The invention discloses environment-friendly mosquito-repellent incense and a preparation method thereof, and relates to the technical field of mosquito-repellent incense. The environment-friendly mosquito-repellent incense comprises the following raw material components in percentage by weight: 70-80% of artemisia annua residue powder, 2-5% of shaddock peel powder, 5-10% of wood charcoal powder, 8-12% of natural epidesmine powder, 4-5.95% of carboxymethyl starch and 0.05-0.1% of artemisia oil. Compared with current mosquito-repellent incense, the mosquito-repellent incense taking residues obtained by extracting artemisinin of artemisia annua as base materials adopts less and fine raw materials; the added artemisia annua residues, shaddock peel powder and artemisia oil have obvious effects in repelling mosquitoes; moreover, the artemisia annua residue powder is sufficiently utilized as a main raw material, so that the resources are utilized. The combustion type mosquito-repellent incense disclosed by the invention is sufficient in combustion, small in smoke, fragrant in smell and small in irritation to human body, further has functions of expelling flies and insects in addition to mosquitoes, has a special Chinese herbal medicine effect, and is a green and environment-friendly product.
Owner:柳州衍生科技有限公司

Method for improving artemisinin content in Artemisia annua L. by DXR (1-deoxy-D-xylulose-5-phosphate reductoisomerase) gene transfer

The invention provides a method for improving an artemisinin content in Artemisia annua L. by DXR (1-deoxy-D-xylulose-5-phosphate reductoisomerase) gene transfer. The method comprises the following steps of: cloning DXR (1-deoxy-D-xylulose-5-phosphate reductoisomerase) gene in the Artemisia annua L., so as to establish a plant expression carrier containing the DXR gene; transferring the DXR gene into Artemisia annua L. through agrobacterium tumefaciens-mediated transformation to grow a plant; detecting the integration condition of the exogenous target gene DXR by a PCR (Polymerase Chain Reaction); detecting the artemisinin content in the transgenic Artemisia annua L. through high performance liquid chromatography-evaporative light scattering detector (HPLC-ELSD); and screening the transgenic Artemisia annua L. plant with improved artemisinin content. The artemisinin content of the transgenic Artemisia annua L. obtained by the invention is obviously improved and high up to 2.4 times that of the non-transferred plant. Therefore, the invention provides the method for improving the artemisinin content in the Artemisia annua L. and lays a foundation for producing artemisinin by using the transgenic Artemisia annua L. in a large scale.
Owner:SHANGHAI JIAO TONG UNIV

Method for efficiently separating and instantaneously converting protoplast of artemisia annua L.

The invention discloses a method for efficiently separating and instantaneously converting a protoplast of artemisia annua L., comprising the following steps: 1) selecting leaves of young and tender artemisia annua and removing lower epidermis, to obtain the leaves of the artemisia annua L. with the lower epidermis removed; 2) placing the leaves of the artemisia annua L. with the lower epidermis removed in an enzymatic hydrolysate for enzymatic hydrolysis to obtain a mixed solution of enzymatic hydrolysis; 3) filtering and centrifuging the mixed solution of enzymatic hydrolysis to obtain a protoplast precipitate, and resuspending to obtain a protoplast; and 4) instantaneously converting the protoplast. The method for separating and converting the protoplast is constructed in the artemisia annua L. for the first time, to obtain the protoplast with yield of 2.749 is multiplied by 10<5>/g FW, viability of 96%, and conversion efficiency of green fluorescent protein of 80%, and the obtained protoplast has large yield and high viability. The protoplast of the artemisia annua L. is utilized as a receptor for conversion, and green fluorescent protein GFP, luciferase LUC and sea cucumberluciferase REN can be successfully expressed.
Owner:SHANGHAI JIAO TONG UNIV
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