A kind of Acanthopanax japonicus extract and its extraction method and application
An extraction method, a technology of Acanthopanax injection, which is applied in the field of Acanthopanax extract and its extraction, can solve the problems of complicated process and high cost, and achieve the effect of simple process, low cost and less times of alcohol precipitation
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Embodiment 1
[0066] Preparation of Acanthopanax extract:
[0067] (1) Take the roots and stems of Acanthopanax, crush them to 10 meshes, add 6 times the amount of water to decoct, the decoction temperature is 98°C, and the decoction time is 2h. Ultrasound and microwave are combined to assist extraction, and the ultrasonic power is 100w. Microwave power 200w, filter to obtain filtrate A;
[0068] (2) Regulate the pH value of filtrate A to 10 with lime milk, stir, and the rotating speed is 40r / min, and the time is 3min, continue to adjust the pH value of filtrate A to 5 with the sulfuric acid that mass fraction is 20%, stir, and rotating speed is 40r / min, the time is 8min, stand at room temperature for 1h, take the supernatant to obtain solution B;
[0069] (3) Concentrate the solution B to a relative density of 1.10 at 80°C, add an ethanol solution with a volume fraction of 85% to an alcohol content of 83%, let it stand at room temperature for 1-2h, and filter to obtain filtrate C;
[00...
Embodiment 2
[0077] Preparation of Acanthopanax extract:
[0078] (1) Take the roots and stems of Acanthopanax, crush them to 16 mesh, add 10 times the amount of water to decoct, the decoction temperature is 100°C, and the decoction time is 4 hours. Ultrasonic and microwave combined assisted extraction, ultrasonic power 300w, Microwave power 400w, filter to obtain filtrate A;
[0079] (2) Regulate the pH value of filtrate A to 12 with milk of lime, stir, and the rotating speed is 60r / min, and the time is 6min, continue to adjust the pH value of filtrate A to 6 with the sulfuric acid that mass fraction is 20%, stir, and the rotating speed is 60r / min, the time is 15min, stand at room temperature for 2h, take the supernatant to obtain solution B;
[0080] (3) Concentrate the solution B to a relative density of 1.25 at 80°C, add an ethanol solution with a volume fraction of 95% to an alcohol content of 85%, leave it at room temperature for 2 hours, and filter to obtain filtrate C;
[0081] ...
Embodiment 3
[0088] Preparation of Acanthopanax extract:
[0089] (1) Take the roots and stems of Acanthopanax, crush them to 12 meshes, add 8 times the amount of water to decoct, the decoction temperature is 99°C, and the decoction time is 3 hours. Ultrasound and microwave are combined to assist extraction, and the ultrasonic power is 200w. Microwave power 300w, filter to obtain filtrate A;
[0090] (2) Regulate the pH value of filtrate A to 11 with milk of lime, stir, and the rotating speed is 50r / min, and the time is 4min, continue to adjust the pH value of filtrate A to 5.5 with the sulfuric acid that mass fraction is 20%, stir, and rotating speed is 50r / min, the time is 11min, stand at room temperature for 1.5h, take the supernatant to obtain solution B;
[0091] (3) Concentrate the solution B to a relative density of 1.18 at 80°C, add an ethanol solution with a volume fraction of 90% to an alcohol content of 84%, let it stand at room temperature for 1.5h, and filter to obtain filtr...
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