Extraction method and extraction system for bergenin
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The invention relates to an extraction method and a technology for the extraction of sauerkraut, which are applied in the field of an extraction method of sauerkraut and an extraction system thereof, and can solve the problems of restricting production efficiency, consuming a large amount of time, etc. Effect
Active Publication Date: 2012-12-12
昭通市骅成制药有限公司
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[0004] Among them, in the process of preparing the crude product, using the traditional extraction system and method, the extraction and concentration are carried out intermittently, which takes a lot of time and limits the improvement of production efficiency
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Embodiment 1
[0079] Such as figure 1 and figure 2 Shown, the extraction method of petracenin comprises the following steps:
[0080] Step 101: placing medicinal material powder in an extraction tank, and adding ethanol;
[0081] Step 102: heating to dissolve the active ingredient in the medicinal material powder in ethanol, and heating until the ethanol boils to obtain a mixture;
[0082] Step 103: Filtrate the mixture to obtain a first filtrate and a first filtrate, heat the first filtrate to evaporate and concentrate, obtain an extract and a first gas whose main component is ethanol, and keep the first filtrate in the extraction tank;
[0083] Step 104: cooling the first gas into a first liquid, and adding the first liquid into the extraction tank in real time;
[0084] Step 105: Recrystallize the extract at 30° C. for 96 hours, and centrifuge to obtain solid crude petogenin and a second liquid;
[0085] Step 106: recovering the second liquid;
[0086] Step 107: refining the crude...
Embodiment 2
[0096] Another method for extracting petogenin comprises the following steps:
[0097] Step 201: placing medicinal material powder in an extraction tank, and adding ethanol;
[0098] Step 202: heating to dissolve the active ingredients in the medicinal material powder in ethanol, and heating until the ethanol boils to obtain a mixture;
[0099] Step 203: Filtrate the mixture to obtain a first filtrate and a first filtrate, heat the first filtrate to evaporate and concentrate, obtain an extract and a first gas whose main component is ethanol, and keep the first filtrate in the extraction tank;
[0100] Step 204: cooling the first gas into a first liquid, and adding the first liquid into the extraction tank in real time;
[0101] Step 205: Recrystallize the extract at 0° C. for 48 hours, and centrifuge to obtain solid crude petogenin and a second liquid;
[0102] Step 206: recovering the second liquid;
[0103] Step 207: refining the crude rock cabbage;
[0104] Described ref...
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Abstract
The invention relates to the field of Chinese herbal medicine, in particular to an extraction method and an extraction system for bergenin. The extraction method includes placing medicinal material powders in an extracting tank, adding ethanol in the extracting tank, heating to enable effective components in the medicinal material powders to be dissolved in the ethanol, heating until the ethanol boils to obtain a mixture, filtering the mixture to obtain a first filter liquor, subjecting the first filter liquor to evaporation and concentration to obtain an extracting liquor and a first gas which has a major component of the ethanol, keeping a first filtering medium in the extracting tank, cooling the first gas to a first liquid, real-timely adding the first liquid in the extracting tank, subjecting the extracting liquor to recrystallization, performing centrifugal separation to obtain a bergenin crude product, and refining the bergenin crude product. The extraction system comprises a coarse extraction device and a refining device, and the coarse extraction device includes a first heating device, a circulating concentration extraction unit, a first recrystallization device and a first solid-liquid separation device. According to the extraction method and the extraction system for the bergenin, low cost and high efficiency production is achieved.
Description
technical field [0001] The invention relates to the field of traditional Chinese medicines, in particular to a method for extracting petracenin and an extraction system thereof. Background technique [0002] Petgenin is an extract of an active ingredient of traditional Chinese medicine included in the "Chinese Pharmacopoeia". It has antitussive and phlegm-relieving effects and can be used to treat chronic bronchitis. As an extract of active ingredients in traditional Chinese medicine, petichenin is mainly extracted and refined from medicinal plants such as saxifragae, rock cabbage, yantuo, dwarf tea, astilbe, and Southwest ghost lamp medicine. [0003] At present, the extraction system of petracenin includes a crude extraction device and a refining device. The crude extraction device mainly includes a traditional heating device (water bath heating device, electromagnetic heater, etc.), a heated container (round bottom flask, etc.) and a filtration device. The method is to g...
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