30 results about "Depside" patented technology

Methods for modulating the level of a chemokine in a cell by administering to a cell an effective amount of a depside or an anthocyanin are provided. More particularly, a method for modulating the level of a chemokine in a cell by administering to a cell an effective amount of a depside having the structure of formula (IV): Formula (IV) wherein R is selected from H or CH3 or an anthocyanin selected from cyanidin 3-glucoside, delphinidin 3-glucoside, or combinations thereof, or an enantiomer, optical isomer, diastereomer, N-oxide, crystalline form, hydrate, or pharmaceutically acceptable salt thereof is provided. Also provided are compounds according to Formulas I-IV, pharmaceutical compositions, unit dosage forms, and food or feed supplements containing such compounds. Methods for treating a condition in a mammal and for treating or ameliorating a condition, such as for example, chronic obstructive pulmonary disease (COPD) by administering an effective amount of a composition containing such compounds are also provided. Further provided is an extract obtained from the fruit of Myrciaria cauliflora containing at least one compound of the present invention in substantially pure form.

The invention discloses Daldinia childiae L2Ma and application thereof in preparation of bacterium grain wood, belonging to the technical field of microorganisms. The strain is collected in China General Microbiological Culture Collection Center; the address is No.3, Yard 1, Beichen West Road, Chaoyang District, Beijing City; and the collection number is CGMCC No:5954. The strain has excellent impregnation capability for a wood-based material, the impregnation time is short, and the impregnation depth is large; beautiful colors and grains can be formed on the surface of the material; and the physical mechanical strength is not influenced. A method for preparing a bacterium grain wood by using the strain comprises the steps of strain activation, expanding propagation and inoculation culture; and the method comprises the following specific steps: inoculating the strain on an activation and expanding propagation culture medium, performing activation and expanding propagation at 22-30 DEG C for 7-15 days, sterilizing the wood-based material, enabling the wood-based material to be sufficiently in contact with the strain subjected to activation and expanding propagation, and culturing at 22-30 DEG C for 6-8 weeks. According to the invention, the method is reasonable in process and simple to operate; and the prepared bacterium grain wood has favorable decoration effect and has no influence on the physical mechanical property of the base material, thereby being beneficial to large-scale production and popularization.

The invention discloses a method for screening flesh colors of seed plants of root vegetables. The method includes harvesting the seed plants of the root vegetables and screening the flesh colors before the seed plants live through the winter; sampling the seed plants by the aid of special root vegetable samplers at sampling depths reaching flesh color root center; observing the flesh colors of sampled positions, screening the flesh colors according to target requirements, reserving the sampled positions as seeds for planting and restoring the sampled positions; smearing each sampled position twice with film mulching agents (comprising zhongshengmycin, trichoderma harzianum, guar gum, pullulan and glycerin components), then allowing the seed plants to stand still for approximately 1 day, storing the seed plants in refrigeration houses or cellars to allow the seed plants to live through the winter and colonizing the root plants in the next spring. The method has the advantages that problems such as high storage quantities of seed plants of root vegetables in the prior art, time and labor wastage in flesh color screening procedures and material loss due to the fact that the screened seed plants are easily infected by diseases can be solved; the method for screening the flesh colors of the seed plants of the root vegetables is mature, convenient and speedy, the flesh colors of the original seed plants can be quickly screened in root vegetable seed breeding procedures, and the seeds can be assuredly smoothly harvested.

The invention provides a method for hydrolyzing propolis flavonoid glycoside by naringinase. The method is as follows: naringinase is adopted to carry out constant-temperature enzymolysis of propolis flavonoid glycoside; propolis flavonoid glycoside substance is hydrolyzed into flavonoid aglycone through enzymolysis; moreover, compared with raw materials, the antioxidation property of the productis reinforced. The content of flavonoid substances in the obtained enzymolysis products can be measured through high-efficiency liquid phase chromatogram, and the result shows that the content of flavonoid glycoside substances is reduced, while the content of flavonoid aglycone substances is obviously increased. The method realizes deep development and utilization of propolis products, and is propitious to increase the added value of bee products and expand the application range of bee products. Moreover, the made propolis enzymolysis products has remarkably increased antioxidation property, and can be better used in the fields of medicine, foodstuff and cosmetics, etc. as compared with raw material propolis.

The invention relates to a method of artificial fast breeding for spun gold suspended gourd, with the detail steps in below: 1) pretreating the explant, 2) sterilizing the explant, 3) inoculating, 4) inducing culturing, 5) differentiation culture for callus, 6) enrichment culture, 7) strengthening sprout culture, 8) root-growing culture, 9) sprouting training and replanting, 10) sprout bed management, 11) bedding in earth the culture sprout, 12) shearing the cuttage ear, 13) treating the cuttage ear with medical agent, 14) cuttage, 15) cuttage sprout bed management. The benefit of this invention is that:: by making use of the advantage of plant tissue culture technique to breed large quantity of spun gold suspended gourd tissue culture sprout in tube with a high speed, the monthly breeding rate is 3-5 times, the yearly tissue culture sprout producing ability is more than ten thousand per square meter, and it solves the problem of spun gold suspended gourd resource shortage. The provided artificial fast breeding method uses less explant material, which can effectively save rare endangered plant species, and the mass production can be carried out which can provide seed foundation for the further development of spun gold suspended gourd product.

The invention discloses a method for separating and purifying macromolecular phenolic acids in tree moss extract. According to the physical and chemical properties of the functional groups in the molecular structure of tree moss extract, the aprotic polarity of specific molecular structure is selected. Non-toxic organic solvent, dissolves and extracts all the easily soluble small molecular aroma substances in the tree moss extract, and at the same time makes the macromolecular substances of depsipolic acids precipitate in the solvent due to poor solubility, reaching the small molecular substances and The effect of complete separation of macromolecular phenolic acids. The isolated depsipolic acid solids are purified by recrystallization from a suitable organic solvent to obtain depsipolic acid solids with lighter color and higher purity. The separation method provided by the invention can improve the use value of the tree moss extract and expand its application field. The purified depsipated phenolic acid solid is in the form of granules, which is loose, dry, non-sticky, easy to use and add, etc. It has a good application prospect in both traditional cigarettes and new tobaccos.

The invention discloses a method for generating aglycon by converting grifola frondosa into soybeam isoflavone glycoside by fermenting. The method comprises the following steps: inoculating grifola frondosa to a culture medium to carry out fermentative culture, so that grifola frondosa mycelium fermentation liquor is obtained; carrying out homogenate treatment on the fermentation liquor, so that a grifola frondosa mycelium is broken, and beta-glucosidase is released to the fermentation liquor, thereby obtaining crude enzyme; and mixing the crude enzyme with soybeam isoflavone glycoside, and reacting the obtained mixture, so that soybean isoflavone glycoside is obtained. According to the method disclosed by the invention, through the deep fermentation of grifola frondosa, a large amount of beta-glucosidase is obtained, and then aglycon is prepared by converting the beta-glucosidase into soybeam isoflavone glycoside, the activity of the obtained beta-glucosidase is high, the product conversion rate is high, and the activity and absorption rate of soy isoflavone are greatly improved; and the converted product is also rich in biological active substances such as grifola frondosa ectoenzyme and mycelia polysaccharides, thereby laying a foundation for the development and industrial production of novel function materials.

The invention discloses a WPGS 1 gene and a WPGS 2 gene derived from eucalyptus and encoding protein and application thereof and belongs to the field of biotechnology. Ribonucleic acid (RNA) in the eucalyptus is extracted and is subjected to reverse transcription to be complementary deoxyribonucleic acid (cDNA), deep sequencing is performed to obtain an overall length cDNA sequence of the eucalyptus, the similarity between a deoxyribonucleic acid (DNA) sequence and the eucalyptus cDNA sequence library sequence obtained through sequencing is compared to obtain overall length cDNA sequences of the WPGS 1 gene and the WPGS 2 gene in the eucalyptus and lead the sequences into Arabidopsis, wherein the DNA sequence is presumed according to AtGA-20 and AtEXO protein amino acid sequences of arabidopsis published by center of biotechnology information (NCBI). The biomass of transgenic plants is remarkably improved through over-expression of the WPGS 1 gene and the WPGS 2 gene.