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51 results about "Gymnemic acid" patented technology

Gymnemic acids are a class of chemical compounds isolated from the leaves of Gymnema sylvestre (Asclepiadaceae). They are anti-sweet compounds, or sweetness inhibitors. After chewing the leaves, solutions sweetened with sugar taste like water.

Method for extracting and separating rosemary essential oil, rosemary acid, ursolic acid and carnosic acid from rosemary leaves

The invention relates to a method for extracting and separating rosemary essential oil, rosemary acid, ursolic acid and carnosic acid from rosemary leaves. The method mainly comprises the following steps that rosemary dry leaves are crushed and are then put into a water solution; temperature rise distillation is performed for 0.5h; distillates are collected to obtain the rosemary essential oil; after the distillation is completed, eight times of volume of 75-percent ethanol solution is added; extraction is performed for 2h at 60 DEG C; filtering is performed to obtain filtering liquid A; six times of volume of 75-percent ethanol solution is added into filtering slag; extraction is performed for 1h at 60 DEG C; filtering is performed to obtain filtering liquid B; the filtering liquid A andthe filtering liquid B are merged; concentration and centrifugation are performed to obtain a solid part and a water phase part; the water phase part is subjected to concentration spray treatment to obtain the rosemary acid; 60-percent ethanol solution is added into the solid part; after the dissolution, centrifugation is continuously performed and is repeated for three times to obtain the ursolicacid; the liquid part is subjected to concentration drying treatment to obtain the carnosic acid. The extracting method has the advantages that the process is simple; green and environment-friendly effects are achieved; the operation is convenient; the cost is low; the yield is high; the method is suitable for industrial production.
Owner:长沙卫一生物科技有限公司

Sarcandra glabra extract with anti-influenza virus activity and preparation method thereof

The invention provides a sarcandra glabra extract with anti-influenza virus activity. Counted by the total weight of the sarcandra glabra extract, the sarcandra glabra extract comprises 0.020-0.040wt%of chlorogenic acid, 0.000-0.008wt% of isofraxidin, 0.025-0.060wt% of quercetin-3-O-beta-D-glucuronide and 0.083-0.158wt% of rosmarinic acid. The invention further provides a preparation method of the sarcandra glabra extract with the anti-influenza virus activity. The preparation method comprises the following steps: performing reflux extraction on sarcandra glabra for two times with deionized water, performing alcohol precipitation to obtain a dry sarcandra glabra water extract, then preparing the dry extract into a sample with a certain concentration, injecting the sample into macroporousadsorption resin, then eluting with an ethanol solution with the concentration of 20%, and collecting an eluate to obtain the sarcandra glabra extract with the anti-influenza virus activity. The sarcandra glabra extract and the preparation method have the advantages as follows: a help is provided for application of the sarcandra glabra extract to fighting against influenza; by the preparation method, the steps are simple and convenient, the operation is easy, quantification can be achieved, the repeatability is high; the preparation method is suitable for application of the extract to the large-scale industrial production process of a medicine in the later stage.
Owner:FUJIAN UNIV OF TRADITIONAL CHINESE MEDICINE

Efficient environment-friendly textile dye

The invention belongs to the technical field of textile materials, and particularly relates to an efficient environment-friendly textile dye. The efficient environment-friendly textile dye mainly comprises acrylic emulsion, rosmarinic acid, sodium polymethacrylate, polyether siloxane, fatty alcohol-polyoxyethylene ether, ginseng-stem-leaf total saponin, Chinese hawthorn leaf extract and patchouli oil. The rosmarinic acid has the bacteriostatic effect, the anti-inflammatory effect, the antiviral effect, the anti-tumor effect, the anti-allergic effect, the antioxidant effect, the anti-thrombus and anti-platelet-aggregation effects, the radiation protection effect and the immunosuppressive effect, and has quite good stability. The polyether siloxane has the foam-eliminating and foam-suppressing effects, is free of toxic and side effects and is good in stability. Meanwhile, the ginseng-stem-leaf total saponin has high moisture absorption performance, and the Chinese hawthorn leaf extract has high moisture guiding performance. The patchouli oil has specific aromatic odor, the specific smell of the ginseng-stem-leaf total saponin and the specific smell of the Chinese hawthorn leaf extract can be covered, certain potential safety hazards of the health of the human body can be avoided, and the environment can be protected.
Owner:RUIAN AOYA CLOTHING CO LTD

Preparation method for three phenolic acid monomeric compounds in salvia prattii hemsl.

The invention relates to a preparation method for three phenolic acid monomeric compounds in salvia prattii hemsl. The method comprises the steps of: (1) performing heat reflux extraction on the crushed roots of salvia prattii hemsl. with alcohol and combining the mixture to obtain an extraction liquid; (2) evaporating the extraction liquid at a reduced pressure to dryness to a constant weight to obtain salvia prattii hemsl.extract; (3) after dissolving the salvia prattii hemsl. extract with deionized water, extracting the extract by using petroleum ether, ethyl acetate and n-butanol sequentially to obtain four parts of extract; (4) dissolving the n-butanol extract in water and eluting the n-butanol extract by a D101 macroporous resin column to obtain an eluant containing phenolic acid substances; (6) evaporating the eluant to dryness to a constant weight to obtain coarse phenolic acid extract; and (7) separating the coarse phenolic acid extract in a n-hexane-ethyl acetate-methanol-water system by adopting high-speed counter-current chromatographic equipment to separately obtain monomeric compounds of three active phenolic acid substances: caffeic acid, rosmarinic acid and rosmarinic acid. The preparation method provided by the invention is simple and convenient, fast, effect and low in cost.
Owner:CHINA ACAD OF SCI NORTHWEST HIGHLAND BIOLOGY INST

Medicinal composition for auxiliary treatment of diabetic coronary artery disease

The invention relates to a medicinal composition for auxiliary treatment of diabetic coronary artery disease, which comprises the following components by weight (namely daily dosage): 1 to 50g of astragalus mongholicus, 1 to 50g of folium gymnemae, 1 to 20g of green tea extract, and 400 to 2,000IU of vitamin D, wherein the astragalus mongholicus and the folium gymnemae are subjected to alcohol heat extraction to obtain astragalus mongholicus and folium gymnemae extracts, and the contents of astragaloside and gymnemic acid can be detected; and the green tea extract and the vitamin D are mixed, and an excipient is added to prepare various oral preparations. The astragaloside can be used for reducing blood sugar; the green tea extract can be used for increasing HDL-C (high-density lipoproteincholesterol), reducing LDL-C (low-density lipoprotein cholesterol), and improving the blood situation of a patient; the astragaloside has the function of protecting heart and blood vessels; and the vitamin D has the effect of strengthening the curative effect of the Chinese medicament. Clinical applications prove that the medicinal composition can be used for assisting treatment of the patient with diabetic coronary artery disease, and remarkable effects can be obtained.
Owner:王丽香

Medicinal composition for auxiliary treatment of diabetic coronary artery disease

The invention relates to a medicinal composition for auxiliary treatment of diabetic coronary artery disease, which comprises the following components by weight (namely daily dosage): 1 to 50g of astragalus mongholicus, 1 to 50g of folium gymnemae, 1 to 20g of green tea extract, and 400 to 2,000IU of vitamin D, wherein the astragalus mongholicus and the folium gymnemae are subjected to alcohol heat extraction to obtain astragalus mongholicus and folium gymnemae extracts, and the contents of astragaloside and gymnemic acid can be detected; and the green tea extract and the vitamin D are mixed, and an excipient is added to prepare various oral preparations. The astragaloside can be used for reducing blood sugar; the green tea extract can be used for increasing HDL-C (high-density lipoproteincholesterol), reducing LDL-C (low-density lipoprotein cholesterol), and improving the blood situation of a patient; the astragaloside has the function of protecting heart and blood vessels; and the vitamin D has the effect of strengthening the curative effect of the Chinese medicament. Clinical applications prove that the medicinal composition can be used for assisting treatment of the patient with diabetic coronary artery disease, and remarkable effects can be obtained.
Owner:王丽香
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