52results about How to "Novel purpose" patented technology

The invention relates to a traditional Chinese medicinal extract and a preparation method thereof, in particular to a puerh tea extract and preparation thereof. The preparation method comprises the technical means of water extraction, membrane filtration, centrifugation, condensation, filtration, and the like.

The invention relates to a drug for treating coronary heart disease and a preparation method thereof. The preparation method comprises the following steps: extracting salvia with alcohol, extracting notoginseng with water and the like. The invention has the following advantages: the process route can realize industrialization and the quality is stable and controllable. Relevant experiments show that the drug has high curative effect and product purity, good absorbability, stable quality and novel application compared with the prior art, and meanwhile, the preparation method is simple in process, convenient to operate, low in cost and suitable for industrial production.

The invention relates to traditional Chinese medicine extract and preparation thereof, in particular to ginsenoside Rh2 extract and preparation thereof. The preparation method comprises the following steps of: 1, extracting a medicinal material which contains ginsenoside components by using water, performing column chromatography on extract liquid through a macroporous adsorption resin column, eluting by using ethanol, collecting eluent, and concentrating the eluent until the eluent is dried so as to obtain total saponins; 2, dissolving the total saponins obtained in the step 1 in acid solution for reaction, adjusting pH to be neutral after the reaction is completed, and collecting precipitate; and 3, dissolving the precipitate in the ethanol, mixing into reverse phase silica gel, performing reverse phase silica gel column chromatography, eluting by using acetonitrile and water mixed liquid, collecting a fraction which is rich in the ginsenoside Rh2, and concentrating the fraction to obtain the ginsenoside Rh2 extract. The prepared ginsenoside Rh2 extract has higher treatment effect and higher purity than that prepared by the prior art.