Application of extract of Antlerpilose grass
An extract, the technology of velvet velvet, applied in the field of application of velvet velvet extract in the preparation of drugs for the prevention and treatment of myocardial hypoxic-ischemic diseases, can solve the problem of the use of velvet velvet and its extract in the prevention and treatment of cardiovascular diseases Reporting and other issues
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Embodiment 1
[0024] Embodiment 1, the preparation of velvet antler extract
[0025] Weigh 10kg of velvet antler medicinal material, chop it up, heat and reflux extraction with 20 times the amount of 50% ethanol for 3 times (8 times, 6 times, 6 times), extract for 1.5 hours each time, filter, combine the filtrates, and concentrate to the equivalent of 1ml In the amount containing 1g of raw medicinal materials (concentration temperature 65-70 ℃). Load AB-8 macroporous resin (column bed volume is about 5L), after loading the sample, use 3 times the amount of distilled water, 15% ethanol to elute, and 60% ethanol to elute, collect the eluted part of 60% ethanol, and evaporate to dryness. velvet antler extract extract 96g.
Embodiment 2
[0026] Embodiment 2, the preparation of velvet grass extract
[0027] Weigh 10kg of pilose antler herb, chop it up, heat and decoct 3 times with 26 times the amount of water (10 times, 8 times, 8 times), decoct for 2 hours each time, filter, combine the filtrates, concentrate to the equivalent of 1mL The amount of 1g of raw medicinal materials (concentration temperature 65-70 ℃); D101 type macroporous resin pretreated on the filtrate (column bed volume is about 5L), after loading, use 6 times the amount of distilled water and 10% ethanol to elute successively, 30 % ethanol for elution, collect the 30% ethanol eluted part, and evaporate to dryness to obtain 110 g of velvet antler extract.
Embodiment 3
[0028] Embodiment 3, DPPH method is measured the scavenging ability of pilose antler extract to free radical
[0029] The velvet antler extract prepared in Example 1 was added with distilled water to make a 1 mg / mL sample solution, and then diluted to 500 μg / mL, 250 μg / mL, 125 μg / mL, 62.5 μg / mL, 31.25 μg / mL and 15.625 μg / mL Six concentrations of mL are available for use. At the same time, 100 μg / mL vitamin E (VE) solution was used as a positive control.
[0030] Take 100 μL of the above-mentioned sample solutions of different concentrations in a 96-well microtiter plate, make three parallel wells for each concentration, then add 100 μL of 1mM DPPH test solution, shake for 30 seconds, and measure the absorbance of each well at 37°C and 517nm wavelength value (Ap). Simultaneously measure the blank absorbance value (Ac) of the sample solution without DPPH and the absorbance value (A max) of the sample solution with DPPH but no sample solution (replacing the sample with 100 μL m...
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