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95 results about "Lycorine" patented technology

Lycorine is a toxic crystalline alkaloid found in various Amaryllidaceae species, such as the cultivated bush lily (Clivia miniata), surprise lilies (Lycoris), and daffodils (Narcissus). It may be highly poisonous, or even lethal, when ingested in certain quantities. Regardless, it is sometimes used medicinally, a reason why some groups may harvest the very popular Clivia miniata.

Breast cancer stem cell cryopreservation protection agent and prepared cryopreservation protection kit

The invention discloses a breast cancer stem cell cryopreservation protection agent and a prepared cryopreservation protection kit. The cryopreservation protection agent consists of serum-free medium freeze-dried powder and fetal calf serum FBS, wherein the serum-free medium freeze-dried powder is prepared by the following steps: adding conventional growth factors, galanthamine and lycorine into a DMEM/F12 culture solution to obtain a culture solution of which the EGF concentration is 15-25g/L, the BSA concentration is 3-5g/L, the insulin concentration is 4-6mg/L, the galanthamine concentration is 50-100nmol/L and the lycorine concentration is 50-100nmol/L, wherein the conventional growth factors include recombinant human epidermal growth factor EGF, bovine serum albumin BSA, insulin and B27; storing in a shaking table for 20-28h at 37 DEG C in the presence of 5% CO2; and performing freeze drying. The cryopreservation protection agent disclosed by the invention can effectively reduce the damage of breast cancer stem cells caused by cryopreservation, the recovered cells have a high survival rate and strong tumorigenic ability and are not much different from those before cryopreservation, and thus the invention is remarkably superior to the prior art.
Owner:南京千年健干细胞基因工程有限公司

Method for rapidly culturing and producing galanthamine, lycorine and lycoramine by rapid propagation of bulblets of lycoris

The invention provides a method for rapidly culturing and producing galanthamine, lycorine and lycoramine by rapid propagation of bulblets of lycoris. The method comprises the following steps: taking a bulb of 'lycoris chinensis' as an explant, sterilizing, inoculating and culturing for a period of time, generating bulblets at a wound of a scale, and continuing carrying out multiplication culture on the bulblets; and drying tissues of the bulblets of the lycoris chinensis, grinding and ultrasonically extracting with methanol for three times to obtain a methanol solution containing the galanthamine, the lycorine and the lycoramine. The problems that resources of lycoris herbs are in shortage, and chemical synthesis of the galanthamine, the lycorine and the lycoramine is complicated are solved by a tissue culturing technology. According to a used basic medium, an SH medium is used as a base, and ingredients such as 6-benzylamino adenine, alpha-naphthylacetic acid and a yeast extract are used as auxiliary ingredients; and the method lays a foundation for industrial production of the galanthamine, the lycorine and the lycoramine and is environment-friendly, raw materials are abundant, and the supply gap of markets to the galanthamine, the lycorine and the lycoramine can be relieved well.
Owner:LIAOCHENG UNIV

Method for simultaneously detecting contents of three alkaloids in lycoris plant

The invention discloses a method for simultaneously detecting the contents of three alkaloids in a lycoris plant, which is capable of quickly extracting and qualitatively and quantitatively analyzingalkaloid matters of galanthamine, lycoramine and lycorine in the lycoris plant. According to the method disclosed by the invention, gradient eluting is carried out by taking an LC (Liquid Chromatography)-MS (Mass Spectrometry) technology as the basis, analysis is carried out in an MRM (Multiple Reaction Monitoring) mode under positive ion scanning by connecting LC with tandem MS, the three alkaloid matters in the lycoris plant can be quickly extracted and accurately, qualitatively and quantitatively analyzed, the analysis time can be shortened to a large extent, the analysis accuracy is increased, a detection result can be obtained within a program time which is not more than 6.0 minutes, the retention time of the three alkaloids is within 3 minutes, the adding standard recovery rate is 97.2 to 100.2 percent, the RSD (Relative Standard Deviation) is 0.8 to 4.3 percent, and the analysis speed and the analysis accuracy are greatly increased; an effective and accurate analysis method is provided for researching an accumulation law and constructive metabolism regulation of the three alkaloids in the lycoris plant.
Owner:SHANGHAI ACAD OF AGRI SCI

Method for extracting lycorine from Lycoris plants

The invention relates to a method for extracting lycorine from Lycoris plants, which comprises the following steps: 1. extraction: weighing Lycoris plant powder which is subjected to drying, pulverization and screening, adding water with the pH value of 1.5-7.5 according to the material-liquid ratio (g / mL) of 1:(5-25), adding an enzyme which accounts for 1-5 wt% of the Lycoris plant powder, carrying out enzymolysis at 40-80 DEG C for 0.5-2.5 hours, centrifuging for 20 minutes, filtering, and taking the supernate to obtain a lycorine extracting solution; 2. purification: (1) carrying out solvent extraction; (2) adsorbing with a cation exchange resin; (3) carrying out C18 reversed-phase silica gel column chromatography; (4) carrying out normal-phase silica gel column chromatography; and (5) recrystallization: dissolving the dried substance III obtained in the step (4) in ethanol, recrystallizing to obtain a lycorine crude product, filtering, and carrying out vacuum drying at 50-60 DEG C to obtain the lycorine. The method is simple to operate, and has the advantages of low production cost, no environment pollution, short reaction time and higher extraction yield (30.46% higher than other methods). The purification technique has the advantages of environment friendliness and high purity (up to 99.3%).
Owner:JISHOU UNIVERSITY

Straw composite organic fertilizer and preparation method thereof

InactiveCN107417452AHas the function of repelling insects and avoiding harmGuaranteed healthy growthBioloigcal waste fertilisersFertilizer mixturesSodium potassium tartrateChemistry
The invention discloses a kind of straw composite organic fertilizer and a preparation method thereof. The straw composite organic fertilizer contains the following components: 200-300 parts by weight of straws, 20-30 parts by weight of soybean curb residue, 10-20 parts by weight of vinasse, 5-8 parts by weight of phosphorite powder, 6-10 parts by weight of humic acid, 2-4 parts by weight of trace elements, 4-6 parts by weight of a composite microbiological inoculant, 1-3 parts by weight of mint powder, 0.8-1.5 parts by weight of lycorine, 3-5 parts by weight of pericarpium granati powder, 1-2 parts by weight of sodium potassium tartrate and 4-7 parts by weight of activated carbon. The straw composite organic fertilizer disclosed by the invention has the advantages that the straw is adopted as a main raw material, the sodium potassium tartrate and activated carbon are added, heavy metal elements in soil can be removed, and the aim of purifying the soil is achieved, so that healthy growth of crops is guaranteed; and the mint powder, lycorine and pericarpium granati powder are added, so that the fertilizer has functions of expelling parasites and avoiding harm, the soil has disease-and-insect-resistant capability, and yield of the crops is increased.
Owner:HEFEI ZHUHANG ECOLOGY AGRI TECH CO LTD
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