Preparation process of herbal medicine extract

Abstract

The present application belongs to the technical field of deep processing of herbal medicines and preparation of plant active extracts, and in particular to a preparation process of herbal medicine extracts. The present application adopts a four-stage cleaning process of ultrasonic pre-washing, medium soaking, ultrasonic secondary rinsing and centrifugal dewatering, which is different from the simple single water washing in the industry. The present application has more stable effects of pesticide residue removal, impurity removal, bacteriostasis and residue removal. Moreover, the present application has a unique three-roller combined forming structure, in which a smooth roller, an irregular pattern roller and an adjustable pressure cutting knife roller work together. There is no similar process equipment in the industry, and the structure is novel and the process is unique.

Description

Technical Field

[0001] This invention belongs to the field of deep processing of herbal medicinal materials and preparation of active plant extracts, specifically relating to a preparation process for herbal medicinal material extracts. Background Technology

[0002] In the current processing and production of herbal medicines, the conventional processing method is to simply wash and dry the herbs once, and then directly cut and crush them using a regular slicer or pulverizer.

[0003] Currently, there are existing equipment in the industry such as ultrasonic cleaning equipment for Chinese medicinal materials, three-roll calendering equipment, conventional slicing and crushing equipment, and extraction and pressing equipment. However, none of them have formed an integrated system that combines ultrasonic multi-stage sequential cleaning to remove pesticide residues with three-roll integrated water-cooled forming. There is no similar complete set of equipment that can realize all the processes and functions of this invention. There is no ultrasonic multi-stage sequential cleaning process exclusive to this application, nor is there a three-roll combined synchronous forming equipment and corresponding process. There is no similar structure or similar process design.

[0004] Traditional slicing and pulverizing processing methods can only change the size and shape of medicinal materials, but cannot stretch, crack, or loosen the natural fibers inside. The pulverizing process easily generates heat through friction, causing the heat-sensitive and volatile components of herbs to evaporate and be lost through oxidation. Conventional simple water washing is a single process, lacking a systematic arrangement of ultrasonic pre-washing, soaking and conditioning, and ultrasonic secondary rinsing. This results in poor removal of pesticide residues, purification, and bacterial control and residue stabilization, and the process has a low degree of standardization. At the same time, the traditional processing steps are scattered, and the material is exposed for a long time during transportation, which further aggravates the loss of effective ingredients. The overall processing technology has obvious shortcomings.

[0005] Therefore, this invention proposes a preparation process for herbal extracts. Summary of the Invention

[0006] To address the problems mentioned in the background section, this invention provides a preparation process for herbal extracts, which has the advantages of more stable effects in pesticide residue removal, impurity removal, antibacterial activity, and residue removal.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a preparation process for herbal extracts, comprising the following steps:

[0008] Step 1: Raw material classification and selection: Herbal medicines are classified into hard medicinal materials such as roots and rhizomes and soft medicinal materials such as flowers and leaves. Moldy, insect-damaged and deteriorated raw materials are removed, and qualified raw materials are retained.

[0009] Step 2: Ultrasonic pre-washing of raw materials: The qualified medicinal materials are pre-washed with ultrasonic assistance to remove surface dust, mud and sand and large impurities, and to help remove pesticide residues.

[0010] Step 3: Soaking in water with functional soaking medium: After pre-washing, place the medicinal materials in water, add functional soaking medium to soak and condition, and degrade pesticide residues;

[0011] Step 4: Ultrasonic secondary water rinsing: After soaking, the medicinal materials undergo ultrasonic secondary water rinsing to remove residual media, fine impurities, and pesticide residues.

[0012] Step 5: Mechanical centrifugal dehydration: After rinsing, the medicinal materials are dehydrated by mechanical centrifugation to remove surface and pore water.

[0013] Step Six: Air Drying at Room Temperature and Ventilation: Air dry the dehydrated medicinal materials at room temperature and ventilation until the set moisture content is reached;

[0014] Step 7: Three-roll integrated water-cooled forming: A smooth roller, an irregular textured roller, and an adjustable pressure cutting roller work together to complete the cracking and loosening of medicinal fiber and the regular cutting of segments in one go;

[0015] Step 8: Categorized and sealed extraction: The mature root and stem medicinal materials and the soft flower and leaf medicinal materials are extracted together in a sealed liquid.

[0016] Step Nine: Secondary Cracking and Re-soaking During Extraction: During the extraction process, the medicinal material is cracked a second time at appropriate times to loosen the fibers and then re-soaked.

[0017] Step 10: Adjustable gap initial pressing of soft materials: The soft medicinal materials are subjected to an adjustable gap initial pressing during the extraction process;

[0018] Step 11: Adjustable gap final pressing after extraction: After extraction, the material is subjected to a graded and gradual final pressing with adjustable gaps.

[0019] Step 12: Combined liquids and sealed coarse sedimentation: Combine all extracts and pressing liquids, seal and let stand to settle naturally;

[0020] Step 13: Initial static diversion and liquid extraction through the low-position valve on the side wall: The supernatant is statically extracted through the low-position valve on the side wall of the tank without pumping disturbance;

[0021] Step Fourteen: Diatomaceous Earth Adsorption and Sedimentation: Add diatomaceous earth to the clear liquid, stir and let stand to adsorb fine suspended and colloidal impurities;

[0022] Step 15: Secondary low-level valve diversion and liquid extraction: After settling, liquid is extracted again through low-level valve diversion without disturbance;

[0023] Step Sixteen: Precision Filtration Beyond Grades: High-mesh filter is used in series with terminal microporous fine filter, omitting multiple stages of step-by-step pre-filtration;

[0024] Step 17: Fine filtration and filling: The filtered liquid phase is subjected to terminal fine filtration and aseptic filling to obtain the finished herbal extract.

[0025] In a preferred preparation process of the herbal extract of the present invention, the pressure-breaking roller in step seven can adjust the blade spacing, blade shape and surface texture according to the characteristics of the medicinal material.

[0026] In a preferred embodiment of the preparation process of the herbal extract of the present invention, the smooth roller, irregular textured roller and pressure-breaking roller in step seven are all hollow water-cooled structures, and the operation is carried out under constant temperature control.

[0027] In a preferred preparation process of the herbal extract of the present invention, step seven involves three rollers working together to complete the fiber splitting and loosening and the regular cutting in one go, reducing material transport and exposure, and reducing the volatilization and oxidation of active ingredients.

[0028] In a preferred preparation process of the herbal extract of the present invention, step six requires placing the dehydrated herbal material in a clean and ventilated environment for natural air drying.

[0029] In a preferred preparation process of the herbal extract of the present invention, step nine requires secondary crushing of the herbal material according to its swelling state, further loosening the fibers, and then continuing to re-impregnate in a sealed environment to improve the extraction of effective components.

[0030] In a preferred preparation process of the herbal extract of the present invention, step ten involves appropriately loosening the fibers and promoting the extraction of components.

[0031] In a preferred preparation process of the herbal extract of the present invention, after the extraction time reaches the target in step eleven, all materials are uniformly subjected to adjustable gap graded progressive pressing to maximize the precipitation of liquid phase substances.

[0032] Compared with the prior art, the beneficial effects of the present invention are:

[0033] 1. This invention adopts a four-stage cleaning process of ultrasonic pre-washing → medium soaking → ultrasonic secondary rinsing → centrifugal dehydration, which is different from the simple single water washing in the industry. The effect of removing pesticide residues, impurities, bacteria and residues is more stable.

[0034] 2. The unique three-roller combined molding structure consists of a smooth roller, an irregular textured roller, and an adjustable pressure cutter roller working together. There is no similar process or equipment in the industry. The structure is novel and the process is original.

[0035] 3. The cutting roller can flexibly adjust the blade spacing, shape, and texture to adapt to the processing of different types of medicinal materials, making it highly versatile.

[0036] 4. All pressure rollers adopt a hollow water-cooled design, ensuring constant temperature operation without temperature rise and preventing the heat-sensitive and volatile components of herbs from being damaged by high temperatures.

[0037] 5. The three rollers work together to complete fiber splitting, loosening, and regular cutting in one go, eliminating the need for multiple transfers and secondary processing, thus reducing the volatilization and oxidation loss of effective ingredients.

[0038] 6. The fibers are stretched and cracked to form a loose structure, which increases the contact area for extraction and significantly improves the extraction rate of effective components.

[0039] 7. Low-position valves are used for static flow diversion and liquid extraction, eliminating the need for pumps to remove slag, resulting in a clear liquid phase that is less prone to turbidity during storage.

[0040] 8. Pre-filtration combined with diatomaceous earth adsorption and advanced precision filtration simplifies the process, reduces the risk of clogging consumables, and is suitable for large-scale mass production.

[0041] 9. Dual-stage purification control before and after the extraction process does not interfere with the extraction system, ensuring both the safety and compliance of the finished product and the retention of active ingredients. Attached Figure Description

[0042] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0043] Figure 1 This is a flowchart of the preparation process of the present invention. Detailed Implementation

[0044] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] like Figure 1 The following steps are shown: A preparation process for an extract from a herbal medicine.

[0046] Step 1: Raw material classification and selection: Herbal medicines are classified into hard medicinal materials such as roots and rhizomes and soft medicinal materials such as flowers and leaves. Moldy, insect-damaged and deteriorated raw materials are removed, and qualified raw materials are retained.

[0047] Step 2: Ultrasonic pre-washing of raw materials: The qualified medicinal materials are pre-washed with ultrasonic assistance to remove surface dust, mud and sand and large impurities, and to help remove pesticide residues.

[0048] Step 3: Soaking in water with functional soaking medium: After pre-washing, place the medicinal materials in water, add functional soaking medium to soak and condition, and degrade pesticide residues;

[0049] Step 4: Ultrasonic secondary water rinsing: After soaking, the medicinal materials undergo ultrasonic secondary water rinsing to remove residual media, fine impurities, and pesticide residues.

[0050] Step 5: Mechanical centrifugal dehydration: After rinsing, the medicinal materials are dehydrated by mechanical centrifugation to remove surface and pore water.

[0051] Step Six: Air Drying at Room Temperature and Ventilation: Air dry the dehydrated medicinal materials at room temperature and ventilation until the set moisture content is reached;

[0052] Among these steps, the dehydrated medicinal materials need to be placed in a clean and well-ventilated environment for natural air drying.

[0053] Step 7: Three-roll integrated water-cooled forming: A smooth roller, an irregular textured roller, and an adjustable pressure cutting roller work together to complete the cracking and loosening of medicinal fiber and the regular cutting of segments in one go;

[0054] Among them, the cutting roller can adjust the blade spacing, blade shape and surface texture according to the characteristics of the medicinal materials;

[0055] Among them, the smooth roller, the irregular textured roller, and the pressure-breaking roller are all hollow water-cooled structures with constant temperature control during operation;

[0056] Among them, the three rollers work together to complete the fiber cracking, loosening and regular cutting in one go, reducing material transportation exposure and reducing the volatilization and oxidation of effective ingredients;

[0057] Step 8: Categorized and sealed extraction: The mature root and stem medicinal materials and the soft flower and leaf medicinal materials are extracted together in a sealed liquid.

[0058] Step Nine: Secondary Cracking and Re-soaking During Extraction: During the extraction process, the medicinal material is cracked a second time at appropriate times to loosen the fibers and then re-soaked.

[0059] Among these steps, it is necessary to perform secondary crushing on the medicinal materials according to their swelling state, further loosen the fibers, and then continue to re-impregnate them in a sealed environment to improve the extraction of effective components.

[0060] Step 10: Adjustable gap initial pressing of soft materials: The soft medicinal materials are subjected to an adjustable gap initial pressing during the extraction process;

[0061] Among them, the fiber is appropriately loosened after pressing to promote the extraction of components;

[0062] Step 11: Adjustable gap final pressing after extraction: After extraction, the material is subjected to a graded and gradual final pressing with adjustable gaps.

[0063] After the extraction time reaches the standard, all materials are uniformly subjected to adjustable gap staged progressive pressing to maximize the precipitation of liquid phase substances.

[0064] Step 12: Combined liquids and sealed coarse sedimentation: Combine all extracts and pressing liquids, seal and let stand to settle naturally;

[0065] The combined extract, primary pressing liquid, and final pressing liquid are transferred to a sealed tank for settling, allowing large molecular impurities and suspended particles to settle naturally.

[0066] Step 13: Initial static diversion and liquid extraction through the low-position valve on the side wall: The supernatant is statically extracted through the low-position valve on the side wall of the tank without pumping disturbance;

[0067] Among them, the upper clear liquid is taken statically at a low flow rate through a low-level small-flow valve on the side wall of the sedimentation tank, without pumping or disturbing the bottom sediment.

[0068] Step Fourteen: Diatomaceous Earth Adsorption and Sedimentation: Add diatomaceous earth to the clear liquid, stir and let stand to adsorb fine suspended and colloidal impurities;

[0069] In this process, diatomaceous earth is added to the initial distillation solution, stirred evenly, and then sealed and allowed to stand to adsorb and remove fine suspended matter and colloidal impurities.

[0070] Step 15: Secondary low-level valve diversion and liquid extraction: After settling, liquid is extracted again through low-level valve diversion without disturbance;

[0071] After deep sedimentation, the liquid is drawn again through a low-level valve for static diversion to further purify the liquid phase;

[0072] Step Sixteen: Precision Filtration Beyond Grades: High-mesh filter is used in series with terminal microporous fine filter, omitting multiple stages of step-by-step pre-filtration;

[0073] Among them, relying on the pre-sedimentation, adsorption and undisturbed liquid collection, the multi-stage step-by-step pre-filtration is omitted, and a high-mesh filter series terminal microporous fine filtration method is adopted, which is not easy to clog the screen or filter element during continuous operation.

[0074] Step 17: Fine filtration and filling: The filtered liquid phase is subjected to terminal fine filtration and aseptic filling to obtain the finished herbal extract.

[0075] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A preparation process for an extract from a herbal medicine, characterized in that, Includes the following steps: Step 1: Raw material classification and selection: Herbal medicines are classified into hard medicinal materials such as roots and rhizomes and soft medicinal materials such as flowers and leaves. Moldy, insect-damaged and deteriorated raw materials are removed, and qualified raw materials are retained. Step 2: Ultrasonic pre-washing of raw materials: The qualified medicinal materials are pre-washed with ultrasonic assistance to remove surface dust, mud and sand and large impurities, and to help remove pesticide residues. Step 3: Soaking in water with functional soaking medium: After pre-washing, place the medicinal materials in water, add functional soaking medium to soak and condition, and degrade pesticide residues; Step 4: Ultrasonic secondary water rinsing: After soaking, the medicinal materials undergo ultrasonic secondary water rinsing to remove residual media, fine impurities, and pesticide residues. Step 5: Mechanical centrifugal dehydration: After rinsing, the medicinal materials are dehydrated by mechanical centrifugation to remove surface and pore water. Step Six: Air Drying at Room Temperature and Ventilation: Air dry the dehydrated medicinal materials at room temperature and ventilation until the set moisture content is reached; Step 7: Three-roll integrated water-cooled forming: A smooth roller, an irregular textured roller, and an adjustable pressure cutting roller work together to complete the cracking and loosening of medicinal fiber and the regular cutting of segments in one go; Step 8: Categorized and sealed extraction: The mature root and stem medicinal materials and the soft flower and leaf medicinal materials are extracted together in a sealed liquid. Step Nine: Secondary Cracking and Re-soaking During Extraction: During the extraction process, the medicinal material is cracked a second time at appropriate times to loosen the fibers and then re-soaked. Step 10: Adjustable gap initial pressing of soft materials: The soft medicinal materials are subjected to an adjustable gap initial pressing during the extraction process; Step 11: Adjustable gap final pressing after extraction: After extraction, the material is subjected to a graded and gradual final pressing with adjustable gaps. Step 12: Combined liquids and sealed coarse sedimentation: Combine all extracts and pressing liquids, seal and let stand to settle naturally; Step 13: Initial static diversion and liquid extraction through the low-position valve on the side wall: The supernatant is statically extracted through the low-position valve on the side wall of the tank without pumping disturbance; Step Fourteen: Diatomaceous Earth Adsorption and Sedimentation: Add diatomaceous earth to the clear liquid, stir and let stand to adsorb fine suspended and colloidal impurities; Step 15: Secondary low-level valve diversion and liquid extraction: After settling, liquid is extracted again through low-level valve diversion without disturbance; Step Sixteen: Precision Filtration Beyond Grades: High-mesh filter is used in series with terminal microporous fine filter, omitting multiple stages of step-by-step pre-filtration; Step 17: Fine filtration and filling: The filtered liquid phase is subjected to terminal fine filtration and aseptic filling to obtain the finished herbal extract.

2. The preparation process of a herbal extract according to claim 1, characterized in that: In step seven, the pressure-breaking roller can adjust the blade spacing, blade shape, and surface texture according to the characteristics of the medicinal material.

3. The preparation process of a herbal extract according to claim 1, characterized in that: In step seven, the smooth roller, irregular textured roller, and pressure-breaking roller are all hollow water-cooled structures with constant temperature control during operation.

4. The preparation process of a herbal extract according to claim 1, characterized in that: In step seven, the three rollers work together to complete the fiber cracking, loosening, and regular cutting in one go, reducing material exposure during transport and minimizing the volatilization and oxidation of active ingredients.

5. The preparation process of a herbal extract according to claim 1, characterized in that: In step six, the dehydrated medicinal materials need to be placed in a clean and ventilated environment for natural air drying.

6. The preparation process of a herbal extract according to claim 1, characterized in that: In step nine, the medicinal materials need to be subjected to secondary crushing according to their swelling state, and the fibers need to be further loosened before being sealed and re-impregnated to improve the extraction of effective components.

7. The preparation process of a herbal extract according to claim 1, characterized in that: In step ten, the fibers are appropriately loosened to promote the separation of components.

8. The preparation process of a herbal extract according to claim 1, characterized in that: After the extraction time reaches the target in step eleven, all materials are uniformly subjected to adjustable gap staged progressive pressing to maximize the precipitation of liquid phase substances.

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