CN109758413B - Herbal mouthwash and low-temperature extraction process thereof - Google Patents
Herbal mouthwash and low-temperature extraction process thereof Download PDFInfo
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- CN109758413B CN109758413B CN201910231234.XA CN201910231234A CN109758413B CN 109758413 B CN109758413 B CN 109758413B CN 201910231234 A CN201910231234 A CN 201910231234A CN 109758413 B CN109758413 B CN 109758413B
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Abstract
The invention provides herbal mouthwash, which comprises Chinese olive, wrinkled gianthyssop herb, mint, Chinese mosla herb, sea buckthorn, liquorice, chrysanthemum, clove, astragalus mongholicus, codonopsis pilosula, gastrodia elata, dogwood, lucid ganoderma, safflower carthamus, dandelion, honeysuckle, polygonatum odoratum and selfheal. The invention also provides a low-temperature extraction process of the herbal mouthwash, which comprises the following steps: 1) a pretreatment procedure: drying the plant components in a low-temperature ventilation place, mixing the dried plant components, and then putting the mixture into a crushing subcritical extraction kettle for crushing treatment; 2) and (3) a subcritical extraction procedure: improving the vacuum degree in the crushing subcritical extraction kettle; injecting an extraction solvent butane into the subcritical extraction kettle until a sample is completely immersed, and controlling the temperature and the extraction pressure in the extraction kettle; 3) a desolventizing procedure: performing compressor desolventizing on the mixture, and collecting the vegetable oil after desolventizing is finished; 4) and (3) suction filtration: and carrying out suction filtration on the prepared vegetable oil to obtain the essential oil. The invention has short production period and low production cost, and is suitable for industrial mass production.
Description
Technical Field
The invention belongs to the technical field of herbal extraction, and particularly relates to herbal mouthwash and a low-temperature extraction process thereof.
Background
The physical structure of the effective components of the traditional herbaceous plants is damaged at high temperature, so that the product efficacy is influenced. Meanwhile, fine particles in the herbaceous plants are easier to be absorbed by human bodies; low temperature extraction and mashing are often required in practical production processes. The low-temperature extraction can be combined and adjusted according to the characteristics of raw materials and product requirements, has the advantages of high efficiency, environmental protection, safety, guarantee of the activity of effective components and the like, has a wide application range, has an operating temperature lower than 60 ℃, can guarantee the activity of the effective components in natural products, does not use solvents harmful to human bodies, can perform extraction and separation in an economic mode, can fully retain the effective components and fragrance, is easy to amplify (scale-up) equipment, can be applied to industrial production, can be widely applied to industries such as medicines, foods, beauty and health products and the like, and emphasizes the modern life of health and health preservation.
Various untypable herbaceous plants are commonly used in the existing Chinese herbal medicines, and the grain diameters and the textures of the herbaceous plants are often greatly different; the low-temperature extraction process can only carry out separate treatment on various particles with different particle sizes, and then, the low-temperature extraction is carried out separately; the method needs more equipment, the whole process flow is prolonged, the production time is prolonged, and the production cost is higher.
Disclosure of Invention
The invention aims to provide a low-temperature extraction process for herbal mouthwash, which solves the problem that the existing low-temperature extraction process only can be used for separately processing various types of mouthwash with different particle sizes, and then separately performs low-temperature extraction; the method has the defects that more equipment is needed, the whole process flow is prolonged, the production time is prolonged, and the production cost is higher.
The purpose of the invention is realized by the following technical scheme:
the invention provides herbal mouthwash, which comprises Chinese olive, wrinkled gianthyssop herb, mint, Chinese mosla herb, sea-buckthorn, liquorice, chrysanthemum, clove, astragalus root, dangshen, gastrodia elata, dogwood, lucid ganoderma, safflower, dandelion, honeysuckle, polygonatum and selfheal. The herbal mouthwash of the invention has the effects of clearing away fire and diminishing inflammation, and achieves the purpose of oral health by using the effective components of the herbs for sterilizing, clearing away the inflammation and stopping bleeding.
In order to solve the technical problems, the invention provides a low-temperature extraction process of herbal mouthwash, which comprises the following steps:
1) a pretreatment procedure: placing fructus Canarii albi, herba Agastaches, herba Menthae, herba Moslae, fructus Hippophae, Glycyrrhrizae radix, flos Chrysanthemi, flos Caryophylli, radix astragali, radix Codonopsis, rhizoma Gastrodiae, Corni fructus, Ganoderma, Carthami flos, herba Taraxaci, flos Lonicerae, rhizoma Polygonati Odorati and Prunellae Spica in a low temperature ventilated place, drying until the water content is 7%, removing core from fructus Canarii albi; mixing the dried plants, putting the mixed plants into a crushing subcritical extraction kettle for crushing, and sieving crushed herbal plant powder;
2) and (3) a subcritical extraction procedure: improving the vacuum degree in the crushing subcritical extraction kettle; injecting an extraction solvent butane into the subcritical extraction kettle until a sample is completely immersed, heating, controlling the temperature of 20-30 ℃ and the extraction pressure of 0.6-0.8 MPa in the extraction kettle, extracting for 40-60 minutes, and repeatedly extracting for 2 times;
3) a desolventizing procedure: after extraction is finished, carrying out compressor desolventizing on the mixture, carrying out desolventizing when the pressure of an extraction tank is reduced to-0.05 MPa, and collecting the vegetable oil after the desolventizing is finished;
4) and (3) suction filtration: carrying out suction filtration on the prepared plant seed oil to obtain essential oil;
the crushing subcritical extraction kettle in the step 1) and the step 2) comprises a subcritical extraction kettle body and a frustum-shaped crushing mixing barrel, wherein a stirring shaft is arranged on the subcritical extraction kettle body, and the top end of the stirring shaft is externally connected with a driving motor; the subcritical extraction kettle is characterized in that an opening is formed in the top end of the subcritical extraction kettle body, the frustum-shaped crushing and mixing cylinder is installed on the opening, the stirring shaft penetrates through the opening and the crushing and mixing cylinder along a vertical center line, three groups of blades are installed on the part, penetrating through the crushing and mixing cylinder, of the stirring shaft, the crushing and mixing cylinder comprises an outer wall and an inner partition cylinder installed on the inner side of the outer wall, the inner partition cylinder is frustum-shaped, a plurality of groups of slots are formed in the inner partition cylinder, one end of each blade is installed on the stirring shaft, and the other end of each blade penetrates through the inner side face, close to the outer wall, of each slot; the inner side of the inner partition cylinder forms a fine herbal crushing cavity, and the area between the inner partition cylinder and the outer wall forms a coarse herbal crushing cavity. In the invention, a crushing and mixing barrel is arranged on a subcritical extraction kettle body by adopting a crushing subcritical extraction kettle, partition barrels in the crushing and mixing barrel are all in a frustum shape, and a fine herb crushing cavity and a coarse herb crushing cavity are all downward conveying cavities with large upper parts and small lower parts; the shearing torque force of one side of the blade close to the rotating shaft is smaller, and the blade is suitable for herbaceous plants with fine grain diameters; in order to match the fine herbal crushing cavity and the coarse herbal crushing cavity to be a downward conveying cavity with a large upper part and a small lower part, a plurality of layers of blades are adopted, so that the shearing torque force at the upper part is larger, the grass plants with thicker grain sizes are more suitable to be sheared, and the shearing torque force at the lower part is smaller, and the grass plants with thinner grain sizes (the grass plants which are sheared by the blades at the upper part) are more suitable to be sheared; the shearing torque force of the side far away from the rotating shaft is larger, and the side is suitable for shearing herbaceous plants with coarse grain sizes; can smash the chamber through the flaked grass, the coarse sheet grass smashes the chamber and separately smashes the herbaceous plant of different particle sizes, need not separate the processing with carrying on of multiple different particle sizes, reduced whole process flow, reduced production time to manufacturing cost has been reduced. The subcritical extraction kettle body in the invention can adopt a kettle body which is common in the market.
Preferably, the vane comprises an inner member mounted inside the inner partition cylinder and two outer members mounted between the inner partition cylinder and the outer wall. Under this structure, the shearing gap of inside spare is littleer, and the gap is cuted to outside spare is bigger for the blade is more fit for shearing the herbaceous plant of different particle sizes.
Preferably, the inner part has a greater width than the outer part.
Preferably, the level of the lowest end of the inner partition cylinder is higher than the level of the lowest end of the outer wall, and the rotating shaft is further provided with a mixing blade which is positioned between the lower part of the lowest end of the inner partition cylinder and the upper part of the lowest end of the outer wall. According to the invention, after the sheared herbaceous plants with the fine particle size and the herbaceous plants with the coarse particle size are primarily mixed by the mixing blades, the herbaceous plants with the fine particle size and the herbaceous plants with the coarse particle size are more uniformly dropped into the subcritical extraction kettle body, so that the herbaceous plants are rapidly dissolved and extracted, and the problems that partial materials cannot be extracted and are wasted due to the fact that the dropped subcritical extraction kettle body is not uniform in material mixing distribution are avoided, and the cost of extracted essential oil is unstable.
Preferably, the bottom end of the outer wall is further provided with a 100-mesh screen.
Preferably, in the step 1), the stoned Chinese olive, the wrinkled gianthyssop herb, the mint, the elsholtzia, the sea-buckthorn, the dogwood, the lucid ganoderma, the fragrant solomonseal rhizome and the liquoric root are placed into a coarse herbal crushing cavity, and the chrysanthemum, the clove, the safflower, the astragalus root, the codonopsis pilosula, the dandelion, the selfheal, the tall gastrodia tuber and the honeysuckle flower are placed into a fine herbal crushing cavity for synchronous crushing. According to the invention, Chinese olive, wrinkled gianthyssop herb, mint, Chinese mosla herb, sea buckthorn, dogwood, lucid ganoderma, fragrant solomonseal rhizome and liquoric root are placed into a coarse herbal crushing cavity, and chrysanthemum, clove, safflower, astragalus, codonopsis pilosula, dandelion, selfheal, tall gastrodia tuber and honeysuckle flower are placed into a fine herbal crushing cavity for synchronous crushing; the treatment is carried out according to different particle sizes, so that the crushing effect is improved.
Preferably, in the step 1), when the grinding is finished and the sieving is carried out, the vacuum degree in the grinding subcritical extraction kettle is simultaneously increased. When the mixed material is sieved, the vacuum degree in the crushed subcritical extraction kettle is improved, so that the mixed material is quickly sucked into the subcritical extraction kettle, and crushed herbaceous plants are prevented from being accumulated on a screen.
Compared with the prior art, the invention can obtain the following technical effects:
in the invention, a crushing and mixing barrel is arranged on a subcritical extraction kettle body by adopting a crushing subcritical extraction kettle, partition barrels in the crushing and mixing barrel are all in a frustum shape, and a fine herb crushing cavity and a coarse herb crushing cavity are all downward conveying cavities with large upper parts and small lower parts; the shearing torque force of one side of the blade close to the rotating shaft is smaller, and the blade is suitable for herbaceous plants with fine grain diameters; in order to match the fine herbal crushing cavity and the coarse herbal crushing cavity to be a downward conveying cavity with a large upper part and a small lower part, a plurality of layers of blades are adopted, so that the shearing torque force at the upper part is larger, the grass plants with thicker grain sizes are more suitable to be sheared, and the shearing torque force at the lower part is smaller, and the grass plants with thinner grain sizes (the grass plants which are sheared by the blades at the upper part) are more suitable to be sheared; the shearing torque force of the side far away from the rotating shaft is larger, and the side is suitable for shearing herbaceous plants with coarse grain sizes; can smash the chamber through the flaked grass, the coarse sheet grass smashes the chamber and separately smashes the herbaceous plant of different particle sizes, need not separate the processing with carrying on of multiple different particle sizes, reduced whole process flow, reduced production time to manufacturing cost has been reduced. The subcritical extraction kettle body in the invention can adopt a kettle body which is common in the market.
Of course, it is not necessary for any one product in which the invention is practiced to achieve all of the above-described technical effects simultaneously.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a sectional view of a pulverized subcritical extraction kettle of an embodiment of the herbaceous low temperature extraction process of the present invention;
FIG. 2 is a top plan view of a grinding and mixing barrel of an embodiment of the herbal low temperature extraction process of the present invention.
In the figure:
1. a subcritical extraction kettle body; 2. a crushing and mixing cylinder; 3. an arched top cover; 4. a stirring shaft;
5. a drive motor; 6. an opening; 7. a blade; 8. a slot; 9. a fine herbal crushing cavity;
10. a coarse herbal crushing cavity; 11. an inner side member; 12. two outer pieces; 13. a mixing blade;
14. screening a screen; 15. a vacuum line; 16. a vacuum pump; 17. an inner partition cylinder; 18. an outer wall.
Detailed Description
The present invention is specifically described below with reference to examples in order to facilitate understanding of the present invention by those skilled in the art. It should be particularly noted that the examples are given solely for the purpose of illustration and are not to be construed as limitations on the scope of the invention, as non-essential improvements and modifications to the invention may occur to those skilled in the art, which fall within the scope of the invention as defined by the appended claims.
The raw materials and equipment used in the present application are all common raw materials and equipment in the field, and are all from commercially available products, unless otherwise specified. The methods used in the present application are conventional methods known to those skilled in the art unless otherwise specified.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; may be mechanically coupled, directly coupled, or indirectly coupled through an intermediary. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The invention provides herbal mouthwash, which comprises Chinese olive, wrinkled gianthyssop herb, mint, Chinese mosla herb, sea-buckthorn, liquorice, chrysanthemum, clove, astragalus root, dangshen, gastrodia elata, dogwood, lucid ganoderma, safflower, dandelion, honeysuckle, polygonatum and selfheal. The herbal mouthwash of the invention has the effects of clearing away fire and diminishing inflammation, and achieves the purpose of oral health by using the effective components of the herbs for sterilizing, clearing away the inflammation and stopping bleeding.
Example 1
As shown in fig. 1 and fig. 2, this embodiment provides a low-temperature extraction process of herbal mouthwash, which includes the following steps:
1) a pretreatment procedure: placing Chinese olive, wrinkled gianthyssop herb, mint, Chinese mosla herb, sea buckthorn, liquorice, chrysanthemum, clove, astragalus, codonopsis pilosula, gastrodia elata, dogwood, lucid ganoderma, safflower, dandelion, honeysuckle, radix polygonati officinalis and selfheal in a low-temperature ventilated place for drying until the moisture content is 7%, mixing the dried plants, and then placing the mixed plants into a crushing subcritical extraction kettle for crushing treatment, wherein the Chinese olive is firstly denucleated; wherein the Chinese olive, wrinkled gianthyssop herb, mint, Chinese mosla herb, sea buckthorn, dogwood, lucid ganoderma, fragrant solomonseal rhizome and liquoric root which are denucleated are placed into a coarse herbal crushing cavity, and the chrysanthemum, the clove, the safflower, the astragalus root, the codonopsis pilosula, the dandelion, the selfheal, the tall gastrodia tuber and the honeysuckle flower are placed into a fine herbal crushing cavity for synchronous crushing; sieving the crushed herbaceous plant powder, and increasing the vacuum degree in the crushing subcritical extraction kettle when the crushed herbaceous plant powder is sieved after the crushing is finished;
2) and (3) a subcritical extraction procedure: improving the vacuum degree in the crushing subcritical extraction kettle; injecting an extraction solvent butane into the subcritical extraction kettle until a sample is completely immersed, heating by opening a hot water heating valve, controlling the temperature of 20 ℃ and the extraction pressure of 0.6MPa in the extraction kettle, extracting for 40 minutes, and repeatedly extracting for 2 times;
3) a desolventizing procedure: after extraction is finished, performing compressor desolventizing on the mixture, performing desolventizing when the pressure of an extraction tank is reduced to-0.05 MPa, opening a valve at the lower end of a separation kettle after desolventizing is finished, and collecting vegetable oil;
4) and (3) suction filtration: carrying out suction filtration on the prepared plant seed oil to obtain essential oil;
the subcritical extraction kettle comprises a subcritical extraction kettle body 1 and a frustum-shaped sealed crushing and mixing barrel 2, wherein the crushing and mixing barrel is provided with a detachable arched top cover 3. A stirring shaft 4 is arranged on the subcritical extraction kettle body, and the top end of the stirring shaft is externally connected with a driving motor 5; an opening 6 is formed in the top end of the subcritical extraction kettle body, the frustum-shaped crushing and mixing cylinder is installed on the opening, the stirring shaft penetrates through the opening and the crushing and mixing cylinder along a vertical center line, three groups of blades 7 are installed on the part, penetrating through the stirring shaft, of the crushing and mixing cylinder, the crushing and mixing cylinder comprises an outer wall 18 and an inner partition cylinder 17 installed on the inner side of the outer wall, the inner partition cylinder is frustum-shaped, a plurality of groups of slots 8 are formed in the inner partition cylinder, one end of each blade is installed on the stirring shaft, and the other end of each blade penetrates through the inner side face, close to the outer wall, of each slot; the inner side of the inner partition cylinder forms a fine herbal crushing cavity 9, and the area between the inner partition cylinder and the outer wall forms a coarse herbal crushing cavity 10. The vane comprises an inner piece 11 mounted inside the inner partition cylinder and two outer pieces 12 mounted between the inner partition cylinder and the outer wall. The inner member has a width greater than the outer member. The horizontal height of the lowest end of the inner partition cylinder is higher than that of the lowest end of the outer wall, the rotating shaft is further provided with a mixing blade 13, and the mixing blade is located between the lower portion of the lowest end of the inner partition cylinder and the upper portion of the lowest end of the outer wall. The bottom end of the outer wall is also provided with a 100 mesh screen 14. The subcritical extraction kettle body is also provided with a vacuum pipeline 15, and the vacuum pipeline is provided with a vacuum pump 16.
The yield of the essential oil (mass percentage of the prepared essential oil to the total amount of the plant) obtained in example 1 was 15.15%.
In the implementation of this example, Chinese olive, wrinkled gianthyssop herb, mint, Chinese mosla herb, sea buckthorn, liquorice, chrysanthemum, clove, astragalus, codonopsis pilosula, gastrodia elata, dogwood, lucid ganoderma, safflower, dandelion, honeysuckle, polygonatum odoratum and selfheal are placed in a low-temperature ventilated place to be dried until the moisture content is 7%, and the Chinese olive is subjected to pit removal firstly; placing the stoned Chinese olive, wrinkled gianthyssop herb, mint, Chinese mosla herb, sea buckthorn, dogwood, lucid ganoderma, fragrant solomonseal rhizome and liquoric root into a coarse herbal crushing cavity, and placing chrysanthemum, clove, safflower, astragalus, codonopsis pilosula, dandelion, selfheal, tall gastrodia tuber and honeysuckle flower into a fine herbal crushing cavity for synchronous crushing; the shearing of the inner side part and the outer side part of the multilayer blades falls into the upper part of the bottom end of the outer wall, the mixing blades are used for stirring and preliminarily mixing, then the mixture is filtered by a screen, the vacuum degree is improved, and the mixed material is pumped into a subcritical extraction kettle body for subcritical low-temperature extraction.
Example 2
The low-temperature extraction process of herbal mouthwash provided by the embodiment comprises the following steps:
1) a pretreatment procedure: placing Chinese olive, wrinkled gianthyssop herb, mint, Chinese mosla herb, sea buckthorn, liquorice, chrysanthemum, clove, astragalus, codonopsis pilosula, gastrodia elata, dogwood, lucid ganoderma, safflower, dandelion, honeysuckle, radix polygonati officinalis and selfheal in a low-temperature ventilated place for drying until the moisture content is 7%, mixing the dried plants, and then placing the mixed plants into a crushing subcritical extraction kettle for crushing treatment, wherein the Chinese olive is firstly denucleated; wherein the Chinese olive, wrinkled gianthyssop herb, mint, Chinese mosla herb, sea buckthorn, dogwood, lucid ganoderma, fragrant solomonseal rhizome and liquoric root which are denucleated are placed into a coarse herbal crushing cavity, and the chrysanthemum, the clove, the safflower, the astragalus root, the codonopsis pilosula, the dandelion, the selfheal, the tall gastrodia tuber and the honeysuckle flower are placed into a fine herbal crushing cavity for synchronous crushing; sieving the crushed herbaceous plant powder, and increasing the vacuum degree in the crushing subcritical extraction kettle when the crushed herbaceous plant powder is sieved after the crushing is finished;
2) and (3) a subcritical extraction procedure: improving the vacuum degree in the crushing subcritical extraction kettle; injecting an extraction solvent butane into the subcritical extraction kettle until a sample is completely immersed, heating by opening a hot water heating valve, controlling the temperature of 30 ℃ and the extraction pressure of 0.8MPa in the extraction kettle, extracting for 60 minutes, and repeatedly extracting for 2 times;
3) a desolventizing procedure: after extraction is finished, performing compressor desolventizing on the mixture, performing desolventizing when the pressure of an extraction tank is reduced to-0.05 MPa, opening a valve at the lower end of a separation kettle after desolventizing is finished, and collecting vegetable oil;
4) and (3) suction filtration: and carrying out suction filtration on the obtained plant seed oil to obtain the essential oil.
In example 2, the yield of the essential oil obtained (mass percentage of the obtained essential oil to the total amount of the plant) was 16.04%.
Example 3
The low-temperature extraction process of herbal mouthwash provided by the embodiment comprises the following steps:
1) a pretreatment procedure: placing Chinese olive, wrinkled gianthyssop herb, mint, Chinese mosla herb, sea buckthorn, liquorice, chrysanthemum, clove, astragalus, codonopsis pilosula, gastrodia elata, dogwood, lucid ganoderma, safflower, dandelion, honeysuckle, radix polygonati officinalis and selfheal in a low-temperature ventilated place for drying until the moisture content is 7%, mixing the dried plants, and then placing the mixed plants into a crushing subcritical extraction kettle for crushing treatment, wherein the Chinese olive is firstly denucleated; wherein the Chinese olive, wrinkled gianthyssop herb, mint, Chinese mosla herb, sea buckthorn, dogwood, lucid ganoderma, fragrant solomonseal rhizome and liquoric root which are denucleated are placed into a coarse herbal crushing cavity, and the chrysanthemum, the clove, the safflower, the astragalus root, the codonopsis pilosula, the dandelion, the selfheal, the tall gastrodia tuber and the honeysuckle flower are placed into a fine herbal crushing cavity for synchronous crushing; sieving the crushed herbaceous plant powder, and increasing the vacuum degree in the crushing subcritical extraction kettle when the crushed herbaceous plant powder is sieved after the crushing is finished;
2) and (3) a subcritical extraction procedure: improving the vacuum degree in the crushing subcritical extraction kettle; injecting an extraction solvent butane into the subcritical extraction kettle until a sample is completely immersed, heating by opening a hot water heating valve, controlling the temperature of 25 ℃ and the extraction pressure of 0.7MPa in the extraction kettle, extracting for 50 minutes, and repeatedly extracting for 2 times;
3) a desolventizing procedure: after extraction is finished, performing compressor desolventizing on the mixture, performing desolventizing when the pressure of an extraction tank is reduced to-0.05 MPa, opening a valve at the lower end of a separation kettle after desolventizing is finished, and collecting vegetable oil;
4) and (3) suction filtration: and carrying out suction filtration on the obtained plant seed oil to obtain the essential oil.
In example 3, the yield of the essential oil (mass percentage of the prepared essential oil to the total amount of the plant) was 15.89%.
Comparative example 1
The low-temperature extraction process of the herbal mouthwash provided by the comparative example comprises the following steps:
1) a pretreatment procedure: placing fructus Canarii albi, herba Agastaches, herba Menthae, herba Moslae, fructus Hippophae, Glycyrrhrizae radix, flos Chrysanthemi, flos Caryophylli, radix astragali, radix Codonopsis, rhizoma Gastrodiae, Corni fructus, Ganoderma, Carthami flos, herba Taraxaci, flos Lonicerae, rhizoma Polygonati Odorati and Prunellae Spica in a low temperature ventilated place, drying until the water content is 8%, removing core from fructus Canarii albi; placing the stoned Chinese olive, wrinkled gianthyssop herb, mint, Chinese mosla herb, sea buckthorn, dogwood, lucid ganoderma, fragrant solomonseal rhizome and liquoric root into a coarse herbal crushing cavity, and placing chrysanthemum, clove, safflower, astragalus, codonopsis pilosula, dandelion, selfheal, tall gastrodia tuber and honeysuckle flower into a fine herbal crushing cavity for synchronous crushing; sieving the crushed herbaceous plant powder, and increasing the vacuum degree in the crushing subcritical extraction kettle when the crushed herbaceous plant powder is sieved after the crushing is finished;
2) and (3) a subcritical extraction procedure: improving the vacuum degree in the crushing subcritical extraction kettle; injecting an extraction solvent butane into the subcritical extraction kettle until a sample is completely immersed, heating by opening a hot water heating valve, controlling the temperature of 18 ℃ and the extraction pressure of 0.5MPa in the extraction kettle, extracting for 39 minutes, and repeatedly extracting for 1 time;
3) a desolventizing procedure: after extraction is finished, performing compressor desolventizing on the mixture, performing desolventizing when the pressure of an extraction tank is reduced to-0.05 MPa, opening a valve at the lower end of a separation kettle after desolventizing is finished, and collecting vegetable oil;
4) and (3) suction filtration: and carrying out suction filtration on the obtained plant seed oil to obtain the essential oil.
The yield of the essential oil (mass percentage of the prepared essential oil to the total amount of the plant) obtained in this comparative example 1 was 6.67%.
In summary, the yields of essential oils of examples 1, 2 and 3 using the process parameters within the process range of the present application are much higher than the yield of essential oils of comparative example 1 using process parameters outside the process range of the present patent.
The embodiments described above are preferred embodiments of the present invention, but as aforementioned, it is to be understood that the invention is not limited to the forms disclosed herein, and is not to be construed as being limited to the exclusion of other embodiments, and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept described herein, by the use of such teaching or by similar processes in the related art and by equivalents thereof, and that changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention, which is intended to be covered by the appended claims.
Claims (3)
1. A herbal mouthwash is characterized by comprising Chinese olive, wrinkled gianthyssop herb, mint, Chinese mosla herb, sea buckthorn, liquorice, chrysanthemum, clove, astragalus root, dangshen, tall gastrodia tuber, dogwood, lucid ganoderma, safflower, dandelion, honeysuckle, fragrant solomonseal rhizome and selfheal; the low-temperature extraction process of the herbal mouthwash comprises the following steps:
1) a pretreatment procedure: placing fructus Canarii albi, herba Agastaches, herba Menthae, herba Moslae, fructus Hippophae, Glycyrrhrizae radix, flos Chrysanthemi, flos Caryophylli, radix astragali, radix Codonopsis, rhizoma Gastrodiae, Corni fructus, Ganoderma, Carthami flos, herba Taraxaci, flos Lonicerae, rhizoma Polygonati Odorati and Prunellae Spica in a low temperature ventilated place, drying until the water content is 7%, wherein removing core of fructus Canarii albi; then mixing the dried plants, putting the mixed plants into a crushing subcritical extraction kettle for crushing treatment, and sieving crushed herbal plant powder; wherein, the Chinese olive, the wrinkled gianthyssop herb, the mint, the elsholtzia, the sea-buckthorn, the dogwood, the lucid ganoderma, the radix polygonati officinalis and the liquorice which are denucleated are put into a coarse herbal crushing cavity, and the chrysanthemum, the clove, the safflower, the astragalus, the codonopsis pilosula, the dandelion, the selfheal, the gastrodia elata and the honeysuckle are put into a fine herbal crushing cavity for synchronous crushing;
2) and (3) a subcritical extraction procedure: improving the vacuum degree in the crushing subcritical extraction kettle; injecting an extraction solvent butane into the subcritical extraction kettle until a sample is completely immersed, heating, controlling the temperature of 20-30 ℃ and the extraction pressure of 0.6-0.8 MPa in the extraction kettle, extracting for 40-60 minutes, and repeatedly extracting for 2 times;
3) a desolventizing procedure: after extraction is finished, carrying out compressor desolventizing on the mixture, carrying out desolventizing when the pressure of an extraction tank is reduced to-0.05 MPa, and collecting the vegetable oil after the desolventizing is finished;
4) and (3) suction filtration: carrying out suction filtration on the prepared plant seed oil to obtain essential oil;
the crushing subcritical extraction kettle in the step 1) and the step 2) comprises a subcritical extraction kettle body and a frustum-shaped crushing mixing barrel, wherein a stirring shaft is arranged on the subcritical extraction kettle body, and the top end of the stirring shaft is externally connected with a driving motor; the subcritical extraction kettle is characterized in that an opening is formed in the top end of the subcritical extraction kettle body, the frustum-shaped crushing and mixing cylinder is installed on the opening, the stirring shaft penetrates through the opening and the crushing and mixing cylinder along a vertical center line, three groups of blades are installed on the part, penetrating through the crushing and mixing cylinder, of the stirring shaft, the crushing and mixing cylinder comprises an outer wall and an inner partition cylinder installed on the inner side of the outer wall, the inner partition cylinder is frustum-shaped, a plurality of groups of slots are formed in the inner partition cylinder, one end of each blade is installed on the stirring shaft, and the other end of each blade penetrates through the inner side face, close to the outer wall, of each slot; a fine herbal crushing cavity is formed at the inner side of the inner partition cylinder, and a coarse herbal crushing cavity is formed in the area between the inner partition cylinder and the outer wall; the blade comprises an inner side piece and two outer side pieces, the inner side piece is arranged on the inner side of the inner partition cylinder, and the outer side pieces are arranged between the inner partition cylinder and the outer wall; the width of the inner side piece is larger than that of the outer side piece; the horizontal height of the lowest end of the inner partition cylinder is higher than that of the lowest end of the outer wall, and the stirring shaft is further provided with a mixing blade which is positioned between the lower part of the lowest end of the inner partition cylinder and the upper part of the lowest end of the outer wall.
2. The herbal mouthwash of claim 1, wherein the bottom end of the outer wall is further provided with a 100 mesh screen.
3. The herbal mouthwash according to claim 2, wherein in step 1), when the grinding is finished and the screening is performed, the vacuum degree in the subcritical extraction kettle is simultaneously increased.
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