Wet preparation method of clean moxa

Abstract

The invention belongs to the technical field of plant processing, and provides a wet preparation method of clean moxa. The preparation method comprises the following steps: sequentially carrying out vacuum freeze drying and low-temperature (less than or equal to 10 DEG C) grinding on folium artemisiae argyi, then separating to obtain moxa fibers and folium artemisiae argyi powder, and then sequentially cleaning, dewatering, drying and sterilizing to obtain the clean moxa. The clean moxa is prepared by adopting a wet method and is not treated by adopting a chemical reagent, so that the chemical property and the physical property of a final product are ensured, the combustion performance and the pure positive property of the moxa in the further application process are not influenced, and the original photo-thermal frequency and the pharmacological activity of the moxa are basically kept unchanged; the content of various bacteria, heavy metals, harmful organic matters and other impurities is greatly reduced, the requirements of medical products are met, the combustion performance tends to be stable, tobacco tar and other pollutants generated during combustion are obviously reduced, and the clean moxa can be further processed into medical health care products with various purposes.

Description

Technical Field

[0001] The invention relates to the technical field of plant processing, and more specifically to a wet preparation method for clean moxa. Background Art

[0002] Moxibustion is undoubtedly a living fossil of traditional Chinese medicine, so it is also called "China's treasure". For more than two thousand years with written records, the consumables used for moxibustion are mainly moxa, that is, the fibers from aged wormwood, which is essentially a unique Chinese medicine fiber fuel used for moxibustion. In ancient times, moxa processing was initially mainly dried in the sun, and after natural aging and fermentation, it was crushed by hand and screened. Later, it gradually developed to the use of tools such as stone mills, stone rollers, and stone mortars, and continued to maintain low-speed cold crushing. After screening the moxa, various moxibustion consumables products were prepared for use in various moxibustion instruments, thus improving processing efficiency. This dry preparation process has not changed for 2,000 years. It has the disadvantages of low photothermal efficiency, high pollution, low resource utilization (≤30%), poor hygiene, uneven combustion performance, and difficult quality control. It is a typical primary agricultural product directly used as a medical product.

[0003] In the past decade, with the increase of public health awareness, the scale of moxibustion industry has achieved rapid development. In order to meet the continuous expansion of market demand, semi-mechanized or even mechanized moxa extraction production lines have come out. Most of them use multi-stage continuous mechanical (knife or grinder) crushing units, which have unprecedentedly improved processing efficiency and greatly reduced costs. However, the biggest problem with this processing method is "frictional heat". The mechanical crushing process will produce continuous high temperature (70-90℃) for many times (no less than 9 times), breaking the bottom line principle of traditional moxa cold processing, causing the volatilization, oxidation and heat loss of the effective ingredients of moxa, among which the loss of volatile components is particularly prominent, which directly affects the combustion performance of moxa and even the ecological effect during moxibustion.

[0004] So far, the sanitary standards for moxa final products on the market (GB / T 40976-2021 "Moxa for Moxibustion") have achieved an epoch-making breakthrough from scratch, but have still failed to achieve a greater essential breakthrough. As always, it is a relatively primary agricultural product. In the "Chinese Pharmacopoeia" or the national standards for proprietary Chinese medicines, the sanitary standards for moxa-related products such as aged moxa leaves, medicinal moxa sticks, and moxa consumables for medical devices are still blank. The long-term use of moxa for moxibustion does not meet the basic entry conditions for medical and sanitary materials. Moxa for moxibustion containing a large number of bacteria and a variety of impurities (such as dust, heavy metals, harmful organic matter dioxins, etc.) is not only difficult to control the quality, but also leaves a large room for adulteration, which greatly limits the promotion and application of moxibustion.

[0005] Therefore, there is an urgent need to develop a method for preparing moxa, which can avoid the loss of effective ingredients in moxa, reduce bacteria and impurities in moxa, improve the purity of moxa, improve the cleanliness and combustion performance of moxa, make the combustion of moxa and its products more stable, reduce pollutants such as smoke oil, and can be further used to prepare high-grade high-quality moxibustion consumables. Summary of the invention

[0006] The present invention aims to solve at least one of the technical problems existing in the above-mentioned prior art. To this end, the present invention proposes a wet method for preparing clean moxa. The clean moxa prepared by the present invention not only greatly reduces the content of bacteria and impurities, meets the medical hygiene standards, but also improves the combustion performance, can make the combustion more stable, can also reduce pollutants such as smoke oil, and the active ingredients are retained to a great extent, which can be well used in the preparation of moxibustion consumables, etc., ultimately improving the clinical experience of moxibustion and enhancing the ecological efficacy of moxibustion.

[0007] A first aspect of the present invention provides a wet preparation method for clean moxa.

[0008] Specifically, a wet preparation method for clean moxa comprises the following steps:

[0009] (1) Take mugwort leaves;

[0010] (2) performing vacuum freeze drying on the wormwood leaf to obtain dried wormwood leaf;

[0011] (3) grinding the dried mugwort leaves at a temperature of ≤10° C. to obtain ground mugwort leaves;

[0012] (4) separating the ground wormwood leaves to obtain wormwood fibers and wormwood leaf powder;

[0013] (5) washing the moxa fibers to obtain washed moxa fibers;

[0014] (6) dehydrating the cleaned moxa fibers to obtain dehydrated moxa fibers;

[0015] (7) Drying and sterilizing the dehydrated moxa fibers to obtain the clean moxa fibers.

[0016] The present invention adopts a wet process to produce clean moxa, which not only avoids the volatilization, oxidation and heat loss of the active ingredients in the moxa fiber caused by high temperature (70-90° C.) in the traditional dry process of producing moxa, but also improves the cleanliness of the final product, meeting the medical hygiene standards. The present invention vacuum freeze-dries the moxa leaf, which can not only completely remove the moisture of the moxa leaf, but also utilizes the low dissolution point of the volatile oil components to complete the extraction of the volatile oil under vacuum and low pressure conditions. Since the whole process is carried out at a low temperature, the destruction of the moxa fiber structure can be avoided, and the structural integrity of the active ingredients can be ensured. Then, the present invention grinds the dried moxa leaves after freeze-drying at low temperature in a low temperature environment (≤10°C), so that the moxa fibers and moxa leaf powder (and other impurities) are easier to separate, and the moxa fibers are more easily and completely separated, thereby reducing the damage of the moxa fibers and improving the extraction rate of the moxa fibers, thereby improving the biological activity of the final product. At the same time, it also greatly reduces the impurities in the moxa fibers, improves the cleanliness and steady-state combustion performance of the moxa final product (the removal of impurities makes the moxa burn more smoothly and reduces the harmful substances produced by combustion). Further using the clean moxa of the present invention for moxibustion can ensure that the combustion temperature is balanced during the moxibustion process, which is conducive to achieving "getting qi" and "effectiveness due to qi arrival" during the moxibustion process, improves the moxibustion experience, and improves the efficacy of moxibustion.

[0017] Preferably, in step (1), the mugwort leaf is fresh mugwort leaf and / or aged mugwort leaf. Fresh mugwort leaf refers to mugwort leaf that is directly harvested and has not been dried. Aged mugwort leaf refers to mugwort leaf that has been stored for ≥ 2 years.

[0018] Preferably, in step (1), the method for preparing the wormwood leaf is: using wormwood as raw material, separating the leaf stems of wormwood to obtain wormwood leaf and wormwood stem, and then sequentially performing air shower cleaning and pre-drying on the wormwood leaf.

[0019] Further preferably, in step (1), the preparation method of the wormwood leaf is: in the field harvesting link, with the help of special leaf stem separation equipment, the pure wormwood leaf is collected, and then the wormwood leaf is placed on a fluidized bed conveyor belt for air shower cleaning and pre-drying in sequence. The purpose of the above steps is to remove impurities, dirt and most of the moisture outside the wormwood leaf, and it is carried out in a fully enclosed pipeline transportation system to avoid contamination of the raw materials during transportation, and to reduce the active pollution of the environment by dust during the raw material processing, thereby ensuring a clean environment. The wormwood stems after the leaf stems are separated are collected independently and can be processed separately as raw materials for manufacturing wormwood cellulose.

[0020] Preferably, the pre-drying temperature is 0-30° C., and / or the pre-drying is performed in a vacuum pressure environment of 0.1±2 mbar, and / or the pre-drying wind speed is 2-4 m / s.

[0021] Preferably, the pre-drying method is one of shade drying, sun drying and pipeline air drying.

[0022] Preferably, in step (1), the blade-shaft separation is carried out in a fluidized bed conveyor belt.

[0023] Preferably, in step (2), the vacuum freeze-drying is carried out in a vacuum freeze-dryer.

[0024] Preferably, in step (2), the vacuum freeze-drying includes gradient graded freezing, which includes initial freezing, complete freeze-drying and thawing in sequence, the initial freezing temperature is -30±5°C, the humidity is 5%-7%, and the freezing is allowed to stand for more than 6 hours; after the initial freezing is completed, the frozen mugwort leaves are placed in a vacuum pressure environment of 0.3±2mbar to complete freeze-drying; and then dried, the drying temperature is increased from -10-0°C to 5-10°C, and the drying time is 30±6h.

[0025] The present invention first performs initial freezing to ensure that the moisture in the wormwood leaf is completely crystallized; after the initial freezing is completed, the wormwood leaf is placed in a vacuum pressure environment of 0.3±2mbar to complete freeze drying, which is conducive to the sublimation of the moisture at the subfreezing point; then the temperature is gradually increased to above 0°C for drying to promote the sublimation of ice crystals, avoid destroying the fiber structure of the wormwood as much as possible, maintain its pharmacological activity, and completely remove the bound moisture in the wormwood leaf.

[0026] Preferably, in step (3), the grinding temperature is 2-8°C, and / or the grinding speed is 20-150r / min, and / or the grinding pressure is 0.03-2MPa, and / or the grinding environment humidity is 8%-10%. The grinding pressure should be sufficient to make the moxa leaf easy to tear without causing significant damage to the moxa fiber structure, thereby ensuring the structural integrity of the active ingredients.

[0027] Preferably, in step (4), the separation is carried out in a closed environment.

[0028] Preferably, in step (4), the separation step comprises: firstly screening the ground mugwort leaves using a vibrating bed and a sieve in turn to obtain mugwort fibers and mugwort powder, and then subjecting the mugwort fibers to an air separation process.

[0029] Preferably, in step (4), the sieve is a 30-100 mesh sieve.

[0030] Further preferably, in step (4), the sieve is a 40-60 mesh sieve.

[0031] Preferably, the air selection process uses a one-way fan (similar to a blower) to perform one-way air separation in the pipeline. The one-way fan (similar to a blower) performs a one-way air separation process in the pipeline, which can classify the moxa fibers according to their own different gravity, thereby obtaining moxa fibers of different grades (including fiber length).

[0032] Preferably, in step (4), the moxa fiber contains T-shaped non-glandular hairs, and / or the diameter of the moxa fiber is 10-18 μm, and / or the length of the moxa fiber is 450-1000 μm, which is significantly longer than the moxa fiber produced by the traditional process, and the homogeneity is also better. Under an optical microscope, it can be seen that the moxa fiber obtained in step (4) of the present invention has a large number of T-shaped non-glandular hairs, and is significantly longer than the moxa fiber produced by the traditional process, and the homogeneity is also better.

[0033] After the wormwood is freeze-dried by the present invention, the wormwood fibers and the wormwood powder shrink separately, making it easier to separate them completely. In addition, the overall brittleness of the wormwood is also increased. Under the combined action of low speed and mechanical tearing force, the wormwood can be ground and torn, which not only reduces the process difficulty and energy consumption, but also ensures the relative integrity of the longer fibers in the wormwood fibers, and the pharmacological activity is also retained to a greater extent.

[0034] The fresh or aged mugwort powder obtained after separation in step (4) can be used separately, such as being transferred to an ultra-high pressure micro-nano property-preserving extraction production line for micro-nano property-preserving molecular essence extraction (covalent), or being transferred to a supramolecular essence extraction (eutectic) production line to purify ionic high-activity essence for later use.

[0035] Preferably, in step (5), the cleaning is to deliver the moxa fibers to a moxa cleaning device (such as a pulp washer) through a chain conveyor for cleaning, or the cleaning is to clean the moxa fibers through a linen washing device (such as a tunnel washing machine / dragon washer).

[0036] Preferably, in step (5), the cleaning is performed by unidirectional water flow. During the cleaning process, the moxa fibers are fully in contact with the circulating water, and there are turbulent flow, centrifugal force, and gentle mechanical agitation. The superposition of these three forces helps to remove the electrostatic attraction between the moxa fibers and loosen the moxa fibers, which is beneficial for removing impurities. At the same time, the unidirectional turbulent water flow can take away the loose washed dirt and floating objects, and can continuously recycle water resources. In addition, water-soluble impurities are also removed. An independent process unit can be further set up for recycling water-soluble impurities.

[0037] Preferably, in step (6), the water removal is carried out by centrifugal separation and / or vacuum filtration. After the water removal, most of the water in the moxa fiber is removed.

[0038] Further preferably, in step (6), the water removal is centrifugal water removal, and the centrifugal speed is 600-2000r / min.

[0039] Preferably, in step (6), the water removal is completed after the water content in the moxa fiber is ≤10wt%, and the dewatering is obtained.

[0040] Preferably, when fresh moxa leaves are used in step (1), after water is removed in step (6), fermentation treatment is then carried out to obtain aged moxa wool (or fermented cleaned moxa wool fiber).

[0041] Preferably, in step (7), the drying and sterilization are both performed in a resonance drying sterilizer.

[0042] Preferably, in step (7), the resonance drying sterilizer is set to 8-12 μm far infrared rays (life rays) for drying and sterilization.

[0043] Preferably, in step (7), after obtaining the clean moxa, the product is packaged in a dust-free and sterile environment. The entire production and packaging process should use a fully enclosed pipeline system to transport the product to avoid secondary contamination.

[0044] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0045] The present invention sequentially vacuum freeze-dries and grinds mugwort at a low temperature (at a temperature of ≤10°C), and then separates the mugwort fibers and mugwort powder, and then sequentially cleans, dehydrates, dries and sterilizes the mugwort fibers to obtain clean moxa. The present invention adopts a wet method to prepare clean moxa, and does not use chemical reagents for treatment, thereby ensuring the chemical and physical properties of the final product itself, ensuring that its combustion performance and "pure yang nature" in the further application process are not affected, and maintaining its original photothermal frequency and pharmacological activity substantially unchanged, ensuring that the relative integrity of the longer fibers in the moxa fibers and the pharmacological activity are also retained to a large extent, and the contents of various bacteria, heavy metals and harmful organic matter in the clean moxa are greatly reduced, meeting the requirements of medical products. The clean moxa provided by the present invention can be further processed into products for various purposes, for example, the clean moxa is used for papermaking (directly formed into wormwood coarse paper through dispersion, dehydration and drying, etc.), it can also be directly rolled into moxa sticks or moxa cones, and it can also be wrapped with the Aijianggewu fiber paper for filtering oil and smoking to make smokeless and sterile moxa sticks or moxa cones. The clean moxa paper can be cut into shreds and then rolled into moxa sticks or moxa cones with automatic rolling equipment for use in the fields of moxibustion. The bacteria and impurities in the clean moxa of the present invention are greatly reduced, so that the combustion performance is more stable, and the pollutants such as smoke oil generated during combustion are also significantly reduced. Further, the high-quality clean moxa products are used as smokeless, sterile and hygienic moxibustion consumables, etc., which can improve the experience of moxibustion, reduce the odor generated by combustion, and reduce pollution to the environment. At the same time, it is also helpful to prevent the adulteration of moxibustion consumables and improve the safety of moxibustion. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 This is a finished product of clean moxa obtained in Example 1 of the present invention;

[0047] Figure 2 This is a comparison diagram of the final product obtained in Comparative Example 1 and the moxa fiber after water removal in step (6) of Example 1 of the present invention;

[0048] Figure 3 It is a 1:10 comparison diagram of the infrared thermal imaging (FLIR) of moxa sticks made from the clean moxa prepared in Example 1 of the present invention and the moxa sticks made from the clean moxa prepared in Example 1 of the present invention;

[0049] Figure 4 A graph showing the vertical temperature variation over time of the wall and the moxibustion site of the moxibustion consumables made of clean moxa in Example 1 of the present invention when burning in a standard moxibustion pot (moxibustion box);

[0050] Figure 5 This is a diagram of the horizontal combustion temperature changes of the box wall and the surface of the moxibustion acupoints when the moxibustion consumables made of clean moxa in Example 1 of the present invention are used upright in a multifunctional moxa can (moxibustion box). DETAILED DESCRIPTION

[0051] In order to make the technical scheme of the present invention more clearly understood by those skilled in the art, the following embodiments are listed for illustration. It should be pointed out that the following embodiments do not limit the protection scope of the present invention.

[0052] Unless otherwise specified, the raw materials, reagents or devices used in the following examples can be obtained from conventional commercial sources or by existing known methods.

[0053] Example 1

[0054] A wet preparation method for clean moxa, comprising the following steps:

[0055] (1) Raw material pretreatment: Take fresh mugwort, separate the leaf stems, and place the mugwort leaves on a fluidized bed conveyor belt for preliminary air shower cleaning and pre-drying (low temperature 0°C, 0.1±2mbar vacuum pressure environment, wind speed 3m / s) to remove external impurities, dirt and most of the moisture. In a fully enclosed pipeline transportation system, it is helpful to reduce the contamination of raw materials during transportation, and reduce the active pollution of dust to the environment during the raw material processing process, thereby ensuring a clean environment.

[0056] (2) Vacuum freeze drying: Use a vacuum freeze dryer for freeze drying, first perform gradient graded freezing, where the initial freezing temperature is -30℃±5℃, humidity is 6%, and stand for 8 hours to ensure that the water in the wormwood is completely crystallized. After the initial freezing is completed, the frozen wormwood is placed in a vacuum pressure environment of 0.3±2mbar to complete freeze drying, which helps the sublimation of water from the freezing point. Then dry it, and the drying temperature is increased from -10℃ to 10℃ to promote the sublimation of ice crystals, so as to avoid destroying the fiber structure of wormwood as much as possible and maintain its pharmacological activity. The drying time needs to be 30±6h to completely remove the bound water in the wormwood.

[0057] (3) Low temperature grinding: Use a cryogenic grinding machine to grind the moxa leaves at a low temperature of 5°C, a humidity of 9%, a low speed (50r / min), and a pressure (2MPa). While completing the grinding, minimize the damaging effects on the moxa fiber structure and active ingredients.

[0058] (4) Wind selection and screening: In a closed environment, a vibrating bed and sieves with different gradient mesh sizes (first use a 40-mesh sieve for initial screening, and then use a 60-mesh sieve for re-screening) are used in turn to achieve preliminary vibration separation of moxa fibers and moxa leaf powder. The obtained moxa fibers enter the wind selection process and rely on a unidirectional fan (similar to a blower) to fly in a single pass in the pipeline to achieve different gravity classifications of the moxa fibers. After being collected separately, moxa fibers for moxibustion of different grades (refer to the national standard for moxa for moxibustion GB / T 40976-2021) can be obtained.

[0059] (5) Cleaning: Different levels of moxa fibers are cleaned separately, specifically, they are delivered to different moxa fiber cleaning devices (washers) through chain conveyors, so that different levels of moxa fibers are fully in contact with circulating cold water. During the washing process, the turbulent effect of the fluidized bed plus the centrifugal force can provide relatively gentle mechanical agitation. The superposition of the three forces helps to remove the electrostatic attraction between the moxa fibers and loose moxa fibers, which is conducive to removing impurities. At the same time, the unidirectional turbulent water flow takes away the loose washed dirt and floating matter, and can continuously recycle water resources. In addition, water-soluble impurities are also removed. After cleaning, moxa fibers of different levels are obtained.

[0060] (6) Dehydration: Centrifuge at 1000 r / min to separate the washed moxa fibers of different grades from the water, making the water content 10%, and obtain dehydrated moxa fibers.

[0061] For fresh moxa that needs further fermentation and aging treatment, the moxa fibers after dehydration are packaged and processed, and then enter the subsequent accelerated fermentation and aging process unit to ensure the full-price high-value utilization of the moxa and obtain fermented and clean moxa fibers.

[0062] (7) Drying and sterilization: The fermented clean moxa fiber is dried and sterilized by using 9μm far infrared rays (life rays) through a resonance drying and sterilization device. No chemical reagents are used, so as not to change the physical and chemical properties of the moxa, especially without changing its pure yang nature, and effectively eliminate impurities and microorganisms in the moxa, and obtain clean moxa that meets the standards of sterile medical sanitary materials.

[0063] (8) Finished product packaging: The clean moxa is packaged in a dust-free and sterile environment.

[0064] The entire production, processing and packaging process mentioned above uses a fully enclosed piping system to avoid secondary contamination.

[0065] Example 2

[0066] A wet preparation method for clean moxa, which differs from Example 1 in that in step (1), fresh moxa is replaced with aged moxa of equal weight.

[0067] Comparative Example 1 (Dry Process - Stone Mill)

[0068] A dry production method of moxa comprises the following steps:

[0069] The low-speed stone mill crushing method was used to grind the aged mugwort leaves directly at room temperature at a low speed (20r / min) using a stone mill, and then continuously subjected to multi-stage screening (first screening with a 40-mesh sieve, and then re-screening with a 60-mesh sieve) to obtain crude stone-ground long fibers.

[0070] Comparative Example 2 (Dry Process-Mechanical Crushing)

[0071] A dry production method of moxa comprises the following steps:

[0072] Using a mechanized high-speed pulverizer, the aged moxa leaves are directly pulverized at high speed (3000r / min) at room temperature, and then continuously screened at multiple levels (first screened with a 40-mesh sieve, then screened with a 60-mesh sieve) to obtain standardized batch moxa for moxibustion.

[0073] The finished moxa wool obtained by the two methods of Comparative Example 1 and Comparative Example 2 contains more dust pollution, the wool quality is uneven (the fiber of stone-ground wool is longer), and the combustion performance stability is limited.

[0074] Product effect testing

[0075] 1. Appearance

[0076] The clean moxa wool obtained in Example 1 has a clean appearance, no obvious impurities, and has the distinct characteristics of wet moxa wool making ( Figure 1 ).

[0077] Figure 2 A and Figure 2 B respectively represents the appearance of the final product obtained in comparative example 1 and the moxa fiber after dehydration in step (6) of example 1 of the present invention. By comparison, it can be found that the product of comparative example 1 is in powder form, while the moxa fiber of example 1 is in "lump form" with a high moisture content. The original structure of the moxa fiber is relatively intact, which greatly reduces the obvious structural damage to the moxa fiber, thereby better retaining the active ingredients.

[0078] From the above, it can be seen that the appearance and quality of the clean moxa prepared by the wet method in Example 1 are significantly improved compared with the traditional dry moxa.

[0079] The appearance and quality of the clean moxa prepared in Example 2 are equivalent to those in Example 1.

[0080] 2. Cleanliness

[0081] The various physicochemical parameters and cleanliness level of the clean moxa prepared in Example 1 were tested (GB / T 40976), and the results are shown in the following table.

[0082] Table 1 Property test results of the clean moxa obtained in Example 1

[0083]

[0084] Table 2 Hygienic test results of clean moxa obtained in Example 1 (reference standard "Cosmetic Safety Technical Specifications" (2015 edition))

[0085]

[0086]

[0087] Table 3 Physical and chemical parameter test results of the clean moxa prepared in Example 1 (reference standard "Cosmetic Safety Technical Specifications" (2015 edition))

[0088]

[0089] It can be seen from Tables 1-3 that the density, moisture, ash content and flammability of the clean moxa prepared in Example 1 of the present invention all meet the standards, indicating that a qualified moxa product is prepared; and the contents of various bacteria, heavy metals and harmful organic matter in the clean moxa are greatly reduced, meeting the requirements of medical products.

[0090] The density, moisture, ash content and combustibility, various bacteria content, heavy metal and harmful organic matter content of the clean moxa prepared in Example 2 are equivalent to those in Example 1, and can meet the requirements of medical products. The quality classification of moxa meets the national standard requirements for the quality parameters of grade I moxa.

[0091] 3. Combustion performance

[0092] Different proportions of wormwood nanocellulose were used as adhesives and prepared together with the clean wormwood of Example 1 of the present invention into different moxa sticks, wherein the weight ratios of clean wormwood and nanocellulose were 1:0.25, 1:0.5, 1:1, 1:1.5, and 1:2, respectively, and were denoted as moxa sticks 1-5.

[0093] The results of the infrared thermal imaging comparison between the commercially available moxa cone and moxa cone 5 at a ratio of 1:10 are as follows: Figure 3 A and Figure 3 B, it can be seen that the infrared thermal imaging image of the combustion of moxa stick 5 and the corresponding data display results are better than those of the moxa sticks available on the market.

[0094] Depend on Figure 4 It can be seen that when the clean moxa of Example 1 is burned vertically through a standard moxibustion can (moxibustion box), the thermodynamic changes of the temperature of the box wall and the moxibustion acupoints are observed, and the results show that the clean moxa of Example 1 has good steady-state combustion performance. Wherein the lower 1, upper 1, lower 3, upper 3, lower 2, upper 2, middle, side 1, and side 2 in the figure represent the positions of thermodynamic detection points at different positions of the moxibustion box selected during measurement.

[0095] Depend on Figure 5It can be seen that the clean moxa of Example 1 has good steady-state combustion performance by observing the thermodynamic changes of the temperature of the box wall and the moxibustion acupoints when the multifunctional moxibustion pot (moxibustion box) is burned vertically. The bottom side 1, bottom side 2, bottom center, flat top, flat center, flat bottom, wall top, wall center, wall bottom in the figure represent the positions of thermodynamic detection points at different positions of the moxibustion box selected during measurement.

[0096] Then moxa sticks 1-5 were burned under the same conditions, and the main combustion properties of moxa sticks 1-5 were compared respectively. Commercially available moxa sticks were used as a comparison. The results are shown below.

[0097] Table 4 Comparison of the combustion performance test results of the clean moxa wool and commercially available moxa sticks of Example 1

[0098]

[0099] It can be seen from the above table that the moxa sticks made with the weight ratio of clean moxa: nanocellulose = 1:2 have a longer burning time than the commercially available moxa sticks made with traditional moxa (commercially available 1:10 moxa sticks), indicating that they have better combustion performance.

[0100] In summary, the present invention adjusts the wet production process of moxa, and the prepared clean moxa product has a clean appearance without impurities, a color close to beige, and a soft feel. In addition, the clean moxa not only meets the hygiene standards and has very little bacteria content, but also greatly reduces impurities such as heavy metals and harmful organic matter, making the combustion performance more stable, and pollutants such as smoke oil generated during combustion are also significantly reduced. Further use of the clean moxa product as moxibustion consumables can improve the experience of moxibustion, reduce the odor generated by combustion, and improve the efficacy of moxibustion.

Claims

1. A wet method for preparing clean moxa, characterized in that: The steps include: (1) Take mugwort leaves; (2) performing vacuum freeze drying on the wormwood leaf to obtain dried wormwood leaf; (3) grinding the dried mugwort leaves at a temperature of ≤10° C. to obtain ground mugwort leaves; (4) separating the ground wormwood leaves to obtain wormwood fibers and wormwood leaf powder; (5) washing the moxa fibers to obtain washed moxa fibers; (6) dehydrating the cleaned moxa fibers to obtain dehydrated moxa fibers; (7) Drying and sterilizing the dehydrated moxa fibers to obtain the clean moxa fibers.

2. The wet method for preparing clean moxa according to claim 1, wherein In step (1), the method for preparing the wormwood leaf is: using wormwood as raw material, separating the leaf stems of wormwood to obtain wormwood leaf and wormwood stem, and then washing and pre-drying the wormwood leaf in sequence.

3. The wet method for preparing clean moxa according to claim 1, characterized in that, In step (2), the vacuum freeze-drying includes gradient graded freezing, which includes initial freezing, complete freeze-drying and drying in sequence, the initial freezing temperature is -30±5°C, the humidity is 5%-7%, and the freezing is allowed to stand for more than 6 hours; after the initial freezing is completed, the frozen mugwort leaves are placed in a vacuum pressure environment of 0.3±2mbar to complete freeze-drying; and then dried, the drying temperature is increased from -10-0°C to 5-10°C, and the drying time is 30±6h.

4. The wet method for preparing clean moxa according to claim 1, characterized in that, In step (3), the grinding temperature is 2-8°C, and / or the grinding speed is 20-150r / min, and / or the grinding pressure is 0.03-2MPa, and / or the grinding environment humidity is 8%-10%.

5. The wet method for preparing clean moxa according to claim 1, characterized in that, In step (4), the moxa fiber contains T-shaped non-glandular hairs, and / or the diameter of the moxa fiber is 10-18 μm, and / or the length of the moxa fiber is 450-1000 μm.

6. The wet method for preparing clean moxa according to claim 1, characterized in that, In step (4), the separation step includes: firstly screening the ground mugwort leaves using a vibrating bed and a screen in turn to obtain mugwort fibers and mugwort powder, and then subjecting the mugwort fibers to an air separation process.

7. The wet method for preparing clean moxa according to claim 1, characterized in that, In step (5), the cleaning is performed by a unidirectional water flow.

8. The wet method for preparing clean moxa according to claim 1, characterized in that, In step (6), the dehydration is completed after the water content in the moxa fiber is ≤10wt%, and the dehydrated moxa fiber is obtained.

9. The wet method for preparing clean moxa according to claim 1, characterized in that, In step (7), the drying and sterilization are carried out in a resonance drying sterilizer.

10. The wet method for preparing clean moxa according to claim 9, characterized in that: In step (7), the resonance drying sterilizer is set to 8-12 μm far infrared rays for drying and sterilization.

Images