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53 results about "PL Extract" patented technology

Ophiopogon japonicus extract, preparation method and hypoglycemic application thereof

The invention relates to an ophiopogon japonicus extract, a preparation method and the hypoglycemic application thereof. The preparation method of the ophiopogon japonicus extract comprises: ophiopogon medicine is taken to be decocted for 1-3 times, added with water by 5-20 times every time, then decocted for 30-120min every time, and filtered and merged into water-decocted liquid; after being concentrated to the density of 1.05-1.35g/ml, the obtained water-decocted liquid is added with ethanol until the alcohol content has the volume percent of 50-80%, and is collected and precipitated after staying over night; the precipitation is separated and purified by sephadex column, and then processed by vacuum freeze drying, so that white loose flocculent crystal which is the ophiopogon japonicus extract can be obtained, and the extract has the sugar content of 90-98%( based on fructose) as well as the molecular weight within the range of 500-2000. Animal experiments prove that the ophiopogon japonicus extract has remarkable hyperglycemic effect, and the action mechanism of the ophiopogon japonicus extract can be further explained by vitro experiments; the result shows the ophiopogon japonicus extract can reduce blood sugar levels by inhibiting the activity of alpha-glucosaccharase in alimentary canal, reduce the absorption for glucose by intestinal villi and the protective action for islet cells. Therefore, the extract can be used for developing medicine for treating type II diabetes.
Owner:SUN YAT SEN UNIV

Application of radix angelicae sinensis as unique active component to preparation of drugs for relieving fever

PendingCN108853162ASignificant effectExcellent antipyretic effectAntipyreticAnalgesicsAspirinPL Extract
The invnetion discloses application of radix angelicae sinensis as a unique active component to preparation of drug for relieving fever. The drug for relieving fever is obtained by taking the radix angelicae sinensis or a radix angelicae sinensis extract as the unique active component and adding acceptable auxiliary additive component. The radix angelicae sinensis extract can be an extract of theradix angelicae sinensis extracted with 0 to 100% ethanol solution or radix angelicae sinensis volatile oil, the mass content of ferulic acid in an ethanol extract is larger or equal to 1%, the mass content of ligustilide in the ethanol extract is larger than or equal to 30%, the mass content of ligustilide in the radix angelicae sinensis volatile oil is larger than or equal to 30%. the application of the radix angelicae sinensis as the unique active component to preparation of drug for relieving fever takes the radix angelicae sinensis or the radix angelicae sinensis extract as the unique active component, the prepared drug is applied to prevention and control of fever, achieves significant curative effects, for example, when the effective drug component is within a certain range, the effect of relieving the fever of the effective drug component is superior to that of aspirin and a ligustilide monomer.
Owner:SICHUAN ACAD OF CHINESE MEDICINE SCI
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