51results about How to "The extraction and separation method is simple" patented technology

The invention provides a traditional Chinese medicine composition with mosquito repelling and itching relieving efficacies, and a preparation method thereof. The composition is prepared from raw medicines of, by weight: 30 to 50 parts of salvia miltiorrhiza, 15 to 25 parts of clove, 15 to 25 parts of radix astragali mongolici, 15 to 25 parts of honeysuckle flower, and 6 to 10 parts of wild dendranthema flower. According to the method provided by the present invention for preparing a Chinese herbal medicine extract, the extraction and separation method is simple, extraction rate of active components through ultrasonic and backflow extractions is high, product purity is high, and product quality is greatly improved. The traditional Chinese medicine components have functions of bacteria inhibiting, virus resisting, inflammation resisting, heat relieving, pain relieving, immune function regulating, sweat secretion inhibiting, skin soothing, and the like. Therefore, the extract have good efficacies as a mosquito repellant. The extract is widely applied in the preparation of ideal mosquito repelling floral water. As a result of experiments, the preparation has no toxic or side-effect, and is suitable for infants and children.

A process for extracting beta-glucosan from oats includes such steps as mixing oats bran with water, stirring at 50-60 deg.C, regulating pH=8-10, adding proteinase, hydrodyzing the protein in oats bran, adding alpha-amylase, treating at 80 deg.C, filtering to obtain clear liquid, ultrafiltering, and freeze-drying.

The invention discloses a tremella extract and a preparation method thereof. The invention provides the method for preparing the tremella extract that after deionized water is used for soaking tremella, a pH value is regulated ranged from 8.5 to 9.0, constant temperature reaction is carried out under the temperature ranged from 85 DEG to 95 DEG, and the tremella extract is obtained after filtering and concentration. In the method, weight ratio of water and the tremella is 1-100:1; the time of the constant temperature reaction is ranged from 3 h to 5 h; the filtering is carried out by using suction filter method in a filtering step; in a suction filter step, suction filter temperature is ranged from 45 DEG to 50 DEG, gauze of 200 mesh to 300 mesh is firstly used to carry out suction filter to cause suction filter liquid to be clear and transparent, and then filter papers are used to carry out the filtering again. The method for preparing the tremella extract does not need organic reagents, and has simple extraction and separation method. The extraction rate reaches up to 81 percent, the product purity can achieve 85 percent, and the product quality has great improvement.

An active largehead atractylodes saccharide complex is produced through water soaking largehead atractylodes rhizome, organic solvent precipitating, water dissolving the precipitate, dialyzing or membrane separating the supernatant liquid, concentration and drying to obtain coarse product, column chromatographic separation of the coarse product to obtain fine largehead atractylodes saccharide compound. The process is simple and high in yield and is suitable for industrial production. The largehead atractylodes saccharide complex contains polysaccharide in 40-60 wt%, alduronic acid in 15-45 wt% and protein in 10-25 wt% and the polysaccharide includes glucose, galactose, mannose, arabinose and rhamnose. The largehead atractylodes saccharide complex has obvious blood sugar reducing effect and no toxic side effect.

A process for extracting oligomeric saccharide SnS-2 from scrophularia root includes soaking in water, precipitating in organic solvent, dissolving precipitate in water, dialyzing supernatant, membrane separation, concentrating and drying. Its advantages are sure medical action for suppressing cancer and improving immunity, high yield and no toxic by-effect.

The invention discloses a mite-removing and acne-removing plant compound essential oil, a preparation method and application thereof. The mite-removing and acne-removing plant compound essential oil is extracted from nepeta nepeta, bamboo, celery seed and orange peel. It has excellent anti-mite effect; it is non-irritating to human skin and can be used directly or in the formula of daily chemical products, which can effectively play the role of anti-mite and acne removal.

The invention relates to an externally used traditional Chinese medicine composition with an emergency skin repair effect. The externally used traditional Chinese medicine composition consists of raw materials including, by weight, from 20 to 30 parts of sophora japonica, from 15 to 20 parts of selfheal, from 10 to 15 parts of purslane, from 10 to 15 parts of radix ophiopogonis, from 10 to 15 parts of radix stemonae, from 10 to 15 parts of giant knotweed rhizome, from 10 to 15 parts of argyi and from 10 to 15 parts of clove. An extraction separation method for a traditional Chinese medicine extract is simple and convenient, purity of obtained products is high, and the quality of the products is greatly improved. The traditional Chinese medicine composition has effects of resisting ultraviolet rays, suppressing and eliminating inflammatory factors caused by ultraviolet irradiation, excellently moisturizing the skin of a user after sun, and the like. Accordingly, the extract can be used as a natural sunscreen raw material applied to sunscreen cosmetics.

The invention relates to the field of extraction and separation of traditional Chinese medicines, in particular to a new compound extracted, separated and identified from purslane and an extraction and separation method thereof. Described new compound, molecular formula is C 13 h 12 o 5 , named 4-hydroxy-3,7-dimethoxy-1 naphthoic acid. The extraction and separation method of the above-mentioned new compound is also provided, which is sequentially prepared by boiling water, silica gel column chromatography, polyamide column chromatography, ODS medium pressure column and Sephadex LH‑20, and successfully extracts and isolates a new compound . Its structure is identified as a new compound by means of mass spectrum, carbon spectrum, hydrogen spectrum and two-dimensional nuclear magnetic spectrum analysis. The new compound has anti-oxidation and anti-tumor effects. The new compound of the present invention and its salts or derivatives can be used as synthetic leads of other compounds, as well as raw materials for new drug development and pharmacological activity research, for the preparation of anti-tumor, anti-oxidation drugs or health care Taste.

The invention discloses a green bean sprout extract and a preparation method and a use thereof. The green bean sprout is simple and convenient to extract and separate, and the obtained product has a high purity, a high extraction ratio of active ingredients, small loss and a greatly-improved product quality. During the germination process of the green bean, the insoluble substance of a high molecular weight is converted into soluble substance of a small molecular weight; the stored substance is converted into physiological bioactive substances; the content of amino acid and various vitamins are also improved greatly; and the changes of these active ingredients further enhance the efficiency of the green bean sprout extract serving as cosmetics, so that the efficiency of the green bean sprout extract for cleaning skin, improving dry skin, maintaining skin elasticity, relieving and resisting sensitivity, and removing acne is more remarkable.