Technology for extracting palmatine from common fibraurea stem
A technology of palmetine and process, applied in the field of palmetine preparation, can solve the problems of low extraction rate and purity of palmetine
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Examples
Embodiment 1
[0039] A process for extracting palmatine from Huangteng, comprising the following steps:
[0040] S1: Pulverizing the vine root and passing it through a 60-mesh sieve to obtain vine root powder;
[0041] S2: Add 14 times the weight of 66% methanol to the yellow vine powder prepared in step S1, and extract twice under ultrasonic reflux under water bath conditions, the frequency of each ultrasonic wave is 580W, the temperature is 46 ° C, and the time is 15 min. After completion, combine the extracts, adjust the pH value of the extracts to 4.2, control the temperature at 46°C, decolorize and remove impurities by activated carbon for 1 hour, and obtain a decolorized solution after filtration;
[0042] S3: Concentrate and dry the primary decolorization solution obtained in step S2 to obtain an extract extract, which is dissolved in water at 48°C with 5.5 times the volume of the extract extract, extracted twice with anhydrous ethyl acetate solvent, and continued to use Anhydrous e...
Embodiment 2
[0048] A process for extracting palmatine from Huangteng, comprising the following steps:
[0049] S1: Pulverizing the vine root and passing it through a 40-mesh sieve to obtain the vine root powder;
[0050] S2: Add 13 times its weight of 61% methanol to the yellow vine powder prepared in step S1, and extract twice under ultrasonic reflux under water bath conditions, the frequency of each ultrasonic wave is 520W, the temperature is 44°C, and the time is 16min. After completion, combine the extracts, adjust the pH value of the extracts to 3.8, control the temperature at 42°C, decolorize and remove impurities by activated carbon for 1.3 hours, and obtain a decolorized solution after filtration;
[0051] S3: Concentrate and dry the primary decolorization solution obtained in step S2 to obtain an extract extract, which is dissolved in water at 42° C. with 5 times the volume of the extract extract, extracted twice with anhydrous ethyl acetate solvent, and continued to use Anhydro...
Embodiment 3
[0057] A process for extracting palmatine from Huangteng, comprising the following steps:
[0058] S1: Pulverizing the vine root and passing it through an 80-mesh sieve to obtain vine root powder;
[0059] S2: Add 15 times its weight of 72% methanol to the yellow vine powder prepared in step S1, and extract it under ultrasonic reflux for 3 times under water bath conditions. The frequency of each ultrasonic wave is 700W, the temperature is 48°C, and the time is 12min. After completion, combine the extracts, adjust the pH value of the extracts to 4.5, control the temperature at 50°C, decolorize and remove impurities by activated carbon for 0.7h, and obtain a decolorized solution after filtration;
[0060] S3: Concentrate and dry the primary decolorization solution obtained in step S2 to obtain an extract extract, which is dissolved in water at 50° C. with 5.6 times the volume of the extract extract, and extracted 3 times with anhydrous ethyl acetate solvent, and then continue to...
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Description
Claims
Application Information
- IPC
- C07D455/03
- CPC
- C07D455/03; Y02P20/54
- Inventors
- 梁可文; 谢冬养