8 results about "Macroporous resin" patented technology

The invention relates to a method for purifying citrulline from a watermelon, which comprises the following steps: removing the pulp of a citrulline, carrying out ultrasonic extraction twice to three times with acid water, settling impurities with a settling agent, purifying citrulline with macroporous resin columns and strong-acid cation resin columns in series, eluting with ammonia water, carrying out concentrative crystallization, dissolving roughly crystallized substances with acid water, adjusting the pH with ammonia water, recrystallizing and the like. The method has the advantages of high extraction efficiency, low energy consumption and high product purity.

The invention relates to a preparation method of general flavone of purple perilla and particularly relates to a method for extracting general flavone of purple perilla by adopting an enzyme-microwave method. The preparation method comprises the following steps: drying purple perilla leaves in the shade; crushing; adding a compound enzyme which is 1-2% of the weight of raw material; uniformly mixing; spraying distilled water till purple perilla leaves can be made into a ball with hands; wrapping by a film; fermenting for 3-5 days at 30-40 DEG C; taking out, adding a 50-70% ethanol solution, carrying out microwave extraction for 20-40 minutes, concentrating under reduced pressure, and recovering ethanol to obtain a concentrated solution; loading the obtained concentrated solution on a macroporous resin column and eluting; and collecting eluant, concentrating and drying to obtain general flavone of purple perilla. Ethanol which is cheap and non-toxic is used as the solvent. The content of the general flavone of the purified product is over 70%. The general flavone is good in repeatability and resin can be repeatedly used.

The invention relates to a production technique for extracting a rosemary antioxidant through ultrasonic wave, which comprises the following steps: heating dried rosemary raw materials (branches and leaves) at room temperature or slightly in 3 to 10 folds of organic solvent under the condition that an ultrasonic wave generator is started to extract the rosemary antioxidant; and reclaiming the organic solvent, and performing column chromatography on the mother solution through macroporous resin to obtain the rosemary antioxidant of which the content is not less than 40 percent. The method mainly aims at the defects that the prior extracting process generates degradation to the rosemary antioxidant and the like, adopts the ultrasonic wave to assist the extraction of the rosemary antioxidant so that the degradation problem of the rosemary antioxidant in the extraction process is solved well; besides, the method remarkably saves the energy consumption, the cost and the like, and the quality of the rosemary antioxidant obtained through one step is higher.

The invention discloses a preparation method of high-purity gynostemma pentaphylla total saponin for veterinary drugs. The preparation method is characterized in that a medicinal gynostemma pentaphylla total saponin medicinal material is used as a raw material, and the high-purity target product, namely the gynostemma pentaphylla total saponin for the veterinary drug, is obtained by high-efficiency extraction and separation on the basis of combination of technologies such as continuous countercurrent supersonic wave extraction, ceramic membrane microfiltration and macroporous resin adsorption separation with a conventional solvent reflux extraction principle. The preparation method has the advantages that the product purity and the product yield are improved, the product quality and the high quality are stabilized, the production cost is reduced, the requirements on the development of the high-purity gynostemma pentaphylla total saponin for the veterinary drugs and highly-processed products of gynostemma pentaphylla total saponin are satisfied, the production process is in line with environmental protection requirements, and the difficulty in the coordination of working procedures such as extraction, solvent recovery, enrichment and purification occurring in the volume production process of the gynostemma pentaphylla total saponin for the veterinary drugs is solved through the continuous improvement of the technology and the adjustment of technological processes and technical parameters.

The invention provides a method for extracting ethyl vanillate from peony. According to the method, peony petals are used as a raw material. Through heating reflux, an active component containing ethyl vanillate are extracted from peony petals; and through extraction, macroporous resin column chromatography, silica gel column chromatography and recrystallization, ethyl vanillate is obtained. By the method for extracting ethyl vanillate from peony, ethyl vanillate with high purity can be obtained, and the purity can reach 95% and above. During the extraction process of ethyl vanillate, medicines used in the process are all common medicines, and production cost is low. Meanwhile, organic solvents such as ethanol and macroporous resin in the chromatographic column can be repeatedly used. Thus, the environment is not polluted, and production cost is further reduced. The method of the invention is suitable for large-scale promotion and application. The ethyl vanillate obtained by the method has stronger activity than orlistat and can be applied in preparation of diet pills or a medicine with inhibitory effect on lipase activity.

The invention relates to a method for extracting and purifying matrine from sophora moorcroftiana, and belongs to the technical field of biological extraction. The method comprises the following steps: pretreating a sophora moorcroftiana raw material, carrying out thermal extraction with water-containing methanol, carrying out alcohol precipitation, carrying out solid-liquid separation, carrying out adsorption purification, concentrating, and crystallizing to obtain a pure total matrine product, crushing and sieving branches and roots, soaking the crushed and sieved branches and roots in ethanol with the concentration of 91% or above, carrying out thermal extraction for a period of time, filtering, and extracting filter residues. Through extraction with water-containing methanol and then by treatments of alcohol precipitation, solid-liquid separation, concentration and crystallization, the purity of the total matrine can be improved, and the total matrine is safe to use and does not influence the environment. According to the method, the raw materials are pretreated by using high-concentration ethanol under the specific conditions, and then matrine is extracted by using high-concentration methanol under specific regulation, so that the interference of impurities can be well avoided in subsequent purification, and the purity of matrine can be improved; and the purity of matrinecan be further improved through adsorption of the macroporous resin HPD600.