Mussaenda pubescens extract and preparation and application thereof in treating nephritis
A technology of jade leaf golden flower and extract, which is applied in the direction of drug combination, plant raw materials, medical preparations containing active ingredients, etc., to achieve the effect of short course of treatment, good therapeutic effect and remarkable effect
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Embodiment 1
[0031] Example 1 Preparation of Jade Leaf Golden Flower Extract
[0032] Follow the steps below:
[0033] (1) Dried Jade Leaf Golden Flower, pulverizing, crossing an 80-mesh sieve to obtain Jade Leaf Golden Flower powder;
[0034] (2) According to the ratio of Yuye Jinhua powder and isopropanol aqueous solution at a ratio of 1:10, reflux extraction at the azeotropic point of 88-92°C for 100 minutes, filter, concentrate under reduced pressure, and collect fractions;
[0035] (3) Add pure water to the distillate in step (2) according to the volume ratio of 1:10, soak for 30 minutes at a temperature of 40°C, and then use ethyl acetate-butyl acetate microwave extraction for 3 times, the extraction conditions are microwave frequency 2000MHz, microwave The power is 400W, the extraction time is 3min, the liquid is separated, the organic phase is collected, and the ethyl acetate-butyl acetate solvent is removed by rotary evaporation under reduced pressure to obtain the extract of Jad...
Embodiment 2
[0036] Example 2 Preparation of Jade Leaf Golden Flower Extract
[0037] Follow the steps below:
[0038] (1) Dried Jade Leaf Golden Flower, pulverizing, crossing a 100-mesh sieve to obtain Jade Leaf Golden Flower powder;
[0039] (2) According to the ratio of Yuyejinhua powder and isopropanol aqueous solution at a ratio of 1:20, reflux extraction at the azeotropic point of 88-92°C for 200 minutes, filter, concentrate under reduced pressure, and collect fractions;
[0040] (3) Add pure water to the distillate in step (2) according to the volume ratio of 1:20, soak at 42°C for 45 minutes, and then use ethyl acetate-butyl acetate microwave extraction for 3 times, the extraction conditions are microwave frequency 2570MHz, microwave The power is 500W, the extraction time is 5min, the liquid is separated, the organic phase is collected, and the ethyl acetate-butyl acetate solvent is removed by rotary evaporation under reduced pressure to obtain the extract of Jade Leaf Golden Flow...
Embodiment 3
[0041] Example 3 Preparation of Jade Leaf Golden Flower Extract
[0042] Follow the steps below:
[0043] (1) Dried Jade Leaf Golden Flower, pulverizing, crossing a 120 mesh sieve to obtain Jade Leaf Golden Flower powder;
[0044] (2) According to the ratio of Yuyejinhua powder and isopropanol aqueous solution of 1:30, reflux extraction at the azeotropic point of 88-92°C for -300min, filter, concentrate under reduced pressure, and collect fractions;
[0045] (3) Add pure water to the distillate in step (2) according to the volume ratio of 1:30, warm soak at 45°C for 30-60min, and then use ethyl acetate-butyl acetate microwave extraction for 3 times, the extraction condition is microwave frequency 2000 -3000MHz, microwave power 600W, extraction time 7min, separate liquid, collect organic phase, remove ethyl acetate-butyl acetate solvent by rotary evaporation under reduced pressure, and obtain Jade Leaf Golden Flower extract with a density of 1.17.
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