Novel fixed enzyme vector comprising epoxy group and its preparation method and uses

Modified natural macromolecular compound adsorbent and application thereof

A solid adsorbent of modified natural macromolecular compound is prepared through mixing gelatin (8-15 w%) with aqueous solution of polyvinyl alcohol in volume ratio of (1-3) : (8-2), regulating pH value to 2-4, quantitatively adding glutaraldehyde, mixing with organic solvent in which non-ionic surfactant is dissolved, heating, reaction, filter and washing to obtain the spherical (0.2-1 mm) adsorbent of gelatin-polyvinyl alcohol polymer. Said adsorbent can be used to extract the substance containing flavone glycoside (more than 59%) and the substance containing terpene lactone (more than 35%) from gingko leaves, and to remove tannin from Chinese medicine. Said adsorbent features high strength and stability, low cost and reuse.

Mixed type hydrogen bond absorbing resin and method for extracting flavonoid component of Chinese medicine

The invention concerns the hydrogen attaching resin of mixing type and the way to take out Chinese herbal medicine bronze. The formula of hydrogen attaching resin of mixing type is: n=50--120. Diameter of grain: 0.3--1.0mm, rate area: 120--400m/g, water: 50--65%, average hole diameter: 10--120nm, rate of hole: 20--55%. The invention use Chinese herbal medicine bronze as the material, just take one simple step of 'attach--take off', to get the taking things in the bronze, the quality in every kind of bronze: yinxing bronze >30%; shali bronze >40%; gegen bronze >80%.

Synthesis method of diene crosslinking agent 1, 4-di(4'- vinyl phenoxy) butane

A process for synthesizing the diene cross-linking agent 1,4-bis (4'-vinylphenoxyly) butane from p-hydroxy acetophenone includes such steps as etherifying with 1,4-dibromobutane, reduction and dewatering.

Extraction method of notoginsenoside

A process for extracting arasaponin from notoginseng features that the strong-polarity macroreticular adsorption resin and the "adsorption-desorption" technology are used.

Technique for extracting compound of flavone in high purity from whole individual plant of tartary buckwheat through method of adsorptive resin

Method for preparing enoxolone

The invention discloses a method for preparing glycyrrhetinic acid. It adopts the glycyrrhizic acid crude product as raw material, and utiizes the processes of ethyl alcohol extraction, using ammonia water to regulate pH value, concentrating and recovering ethyl alcohol, adding water to make dissolution, using ADS-10 macroporous adsorption resin to remove impurity component so as to purity the glycyrrhizic acid being in effluent of resin column, the making acid hydrolysis to obtain the glycyrrhetinic acid crude product, making further purification so as to obtain high-purity glycyrrhetinic acid. The advantage of said invention lies in that the glycyrrhizic acid with different purities can be used to prepare glycyrrhetinic acid, the purification of glycyrrhetinic acid has no need of column chromatography, and adopts the method for making respective extraction at twice by using organic solvent.

Process for extracting natural flavonoid and/or terpene lactones from plant by adsorbent

A process for extracting natural flavonoid and/or terpene lactones from plant by adsorbent includes such steps as extracting the plant containing flavonoid and/or terpene lactones matter in alcohol to obtain aqueous solution, loading it in resin column containing urea-form aldehyde type adsorptive resin,washing, desorptin, concentrating, drying and pulverizing. The powdered extract contains flavone glycoside (24-42%) and terpene lactone (6-15%), or contains flavone glycoside (more than 62%). Its advantages are one-step desorption, simple process, low cost and high quality of product.

Process for extracting natural flavonoid and/or terpene lactones from plant by absorbent

Cross-linked polyoxy functional resin and functionated derivatives

This invention refers to a kind of function radicle rosin of crosslinking poly epoxy, which is derived from anionic polymerization amongst the diglycidyl ether function radicle monomer with phenyl, dual-diglycidyl ether crosslinking agent and the third epoxy monomer of polarity of copolymer. Polymerization method can be bulk polymerization, solution polymerization or suspension polymerization and the phenyl of the copolymer can be functioned further, such as sulfonation, chloromethylation, aminomethylation (amicmethylation ), hydroxymethylation, etc.. The copolymer and function radicle ramification synthesized can be used as function material. This invention is a kind of function material of substitutional ethylene oxide polymer, overcomes the disadvantages of polystyrene resin and polystyrene resin grafting polyethylene glycol resin in the now-existing technology, has the backbone of polyethylene oxide and is featured by PEG, benzene ring in its side chain, polystyrene's easy function ...

Extraction of panax notoginseng leaf saponine

A process for extracting the arasaponin from the stem and leaf of notoginseng features use of water as its extracting solvent, and only a simple "adsorption-desorption" step, where the strong-polar macroporous adsorption resin is used for separation and purification. Its advantages are less loss of arasaponin, no need of toxic solvent and low cost.

Modified natural macromolecular compound adsorbent and application thereof

Crosslinked polystyrene gel and use thereof

The invention relates to a new crosslinked polystyrene gel and its application. In the invention, combining the dimethacrylic acid diglycol ester or dimethacrylic acid diglycol ester as cross linking agents with phenylethene or phenylethene substitution copolymer gel to get the product by free radical copolymerization. The gel with functional group can be used as a solid phase carrier of solid phase method of polypeptide synthesis, solid phase organic synthesis or combination chemical as well as a solid phase scavenging agent.