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Optimization method for large-scale volatile oil extraction from medicinal materials

An optimization method and volatile oil technology, applied in the direction of instruments, adaptive control, control/regulation systems, etc., can solve the problems of low oil recovery rate, no volatile oil recovery, unsatisfactory volatile oil effect, etc., and achieve the effect of improving the yield rate

Active Publication Date: 2015-12-16
四川九渊医药科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The common problem with the above extraction methods is that the hardware equipment used has not been optimized and designed to adapt to the extraction of different medicinal materials.
This leads to the unsatisfactory effect of extracting volatile oil in large-scale production. Only the aromatic water of most medicinal materials can be collected, and no volatile oil can be collected; or some medicinal materials can receive a small amount of oil, but the oil recovery rate is far lower than that of the laboratory. Yield

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  • Optimization method for large-scale volatile oil extraction from medicinal materials
  • Optimization method for large-scale volatile oil extraction from medicinal materials
  • Optimization method for large-scale volatile oil extraction from medicinal materials

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Experimental program
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Embodiment 1

[0039] The present embodiment provides an optimized method for large-scale extraction of volatile oil in cinnamon, which specifically includes the following steps:

[0040] according to figure 1 The experimental device in the determination of the vapor pressure P of the volatile oil contained in cinnamon 1 . 1 is a round bottom flask, in which the first type of mixture composed of volatile oil and water is put into for heating during the experiment; 2 is a condenser tube, and the water flow is connected to condense during the experiment; 3 is a scale tube for volatile oil; 4 is a receiving bottle.

[0041]Put 2.4mL of the volatile oil in the cinnamon extracted in the laboratory into the round bottom flask 1 (the specification of the round bottom flask 1 is 1000mL), add 600mL of water to mix, put in the zeolite and heat it in a water bath, and control the temperature of the water bath heating to 100 ℃. During the distillation process, when 100mL of water is collected, record...

Embodiment 2

[0046] Based on the foregoing embodiments, the present invention has also made the following improvements:

[0047] In the actual extraction process, if the extraction time is set to 12 hours, the water evaporation Z calculated in Example 1 is substituted into the following calculation model to obtain the optimized heating equipment power K = Z 1.6 t = 1166 K g 1.6 K g . h / K W × 12 h = 61 K w .

[0048] In the actual extraction process, if the heat transfer temperature difference of the condenser used is 20°C, the power of the heating equipment obtained from the above calculati...

Embodiment 3

[0051] On the basis of embodiment 2, the present invention has also made the following improvements:

[0052] Take 1 mL of volatile oil extracted from cinnamon and add it to 100 mL of water to form an oil-water mixture; stir the oil-water mixture for 6 minutes, then put it into a water bath; The time required for the oil-water mixture to separate.

[0053] Take two pycnometer bottles of 10mL, fill one pycnometer bottle with volatile oil, and fill the other with water; then put the two pycnometer bottles into the water bath heating device and heat them for more than 15 minutes, then take them out and place them on the outside of the pycnometer bottles. Wipe dry, weigh the mass respectively, choose the water bath temperature from 20-75°C, from low to high, do it every 5°C; substitute where m 油y Refers to the mass of a pycnometer filled with volatile oil at a certain temperature, m 水y Refers to the mass of a pycnometer filled with water at the same temperature, V 瓶 Is the vo...

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Abstract

The invention provides an optimization method for large-scale volatile oil extraction from medicinal materials. According to the optimization method, pure volatile oil is adopted as reference, and the vapor partial pressure P1 of the pure volatile oil when the pure volatile oil is mixed with water under 100 DEG C is measured, while, in an actual extraction process, a mixture in an extraction tank is a mixture composed of ground medicinal materials and water, as a result, P1 cannot actually reflect the vapor partial pressure of the volatile oil in the actual extraction process, and therefore, the medicinal materials are ground to materials of appropriate granularity, and the ground materials are mixed with water, and then, the vapor partial pressure P2 of the pure volatile oil contained in the medicinal materials under 100 DEG C is measured; P2 can reflect the vapor partial pressure of the volatile oil in the extraction tank in the actual extraction process, and thus, P2 is adopted as a valid parameter; and the P2 is introduced to subsequent steps, and therefore, parameters such as evaporated quantity of water after optimization can be obtained. With the optimization method adopted, the yielding rate of the large-scale volatile oil extraction from the medicinal materials can be greatly improved, and the curative effect of related medicines can be improved, and the efficiency of pharmaceutical companies can be increased.

Description

technical field [0001] The invention relates to the field of extraction of volatile oils in traditional Chinese medicines, in particular to an optimized method for large-scale extraction of volatile oils in medicinal materials. Background technique [0002] Volatile oil is the most active ingredient in medicinal materials. The country has passed the "Pharmacopia" and "New Drug Approval Measures" to stipulate that all medicinal materials containing volatile oil must be extracted unless otherwise specified. Facts have also proved that volatile oil does have a good curative effect. Drugs containing volatile oil in the market account for a large proportion of Chinese patent medicines, and have received many good responses. [0003] The volatile oil extraction method stipulated in the Pharmacopoeia is steam distillation. Pharmaceutical companies use this method in large-scale industrial extraction. It mainly includes the following steps: crush the medicinal materials to be extrac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B13/04
Inventor 曹远东
Owner 四川九渊医药科技有限公司