A drying method of artemisia capillaris

Abstract

The application provides a drying method of Artemisia Scoparia, which comprises the following steps: uniformly laying 5-6 layers of Artemisia Scoparia, laying 3-5 cm thick Artemisia Scoparia in each layer, setting each layer of the Artemisia Scoparia at intervals of 20-30 cm, shading the Artemisia Scoparia by using a shading net, and naturally drying the Artemisia Scoparia for 1-3 days, turning over the Artemisia Scoparia once a day; after naturally drying for 3 days, when the moisture content of the Artemisia Scoparia is low, the Artemisia Scoparia is no longer turned over; during the natural drying process, the air blower is started in the daytime and stopped at night, so that the moisture content of the Artemisia Scoparia is increased, and the operation is repeated for several times until the Artemisia Scoparia is completely dried, and the naturally dried Artemisia Scoparia is obtained; the application has the advantages that the drying site can be saved, the natural drying site can be freely selected, the natural drying can be simulated, the pathogenic bacteria can be eliminated, the insect growth, mold growth and metamorphosis of traditional Chinese medicinal materials during storage can be prevented, and the inherent color and smell of the Artemisia Scoparia are ensured.

Description

Technical Field

[0001] This invention belongs to the field of traditional Chinese medicine drying technology, and specifically relates to a method for drying Artemisia capillaris. Background Technology

[0002] Artemisia capillaris is the dried aerial part of Artemisia scoparia Waldst. et Kit. or Artemisia capillaris Thunb., belonging to the Asteraceae family. The part harvested in spring when the seedlings are 6-10 cm tall is commonly called "Mian Yin Chen," while the part harvested in autumn when the flower buds have fully developed and the flowers have just begun to open is called "Hua Yin Chen." Artemisia capillaris is bitter, pungent, and slightly cold in nature. It enters the spleen, stomach, liver, and gallbladder meridians. Traditionally, its main function is to clear heat and promote diuresis, used to treat damp-heat jaundice, urinary difficulty, and wind-itchy sores and scabies.

[0003] Artemisia capillaris needs to be dried promptly after harvesting. Currently, the medicinal use of Artemisia capillaris mainly relies on wild harvesting, typically using traditional methods such as sun-drying, air-drying, or shade-drying. However, these methods are highly susceptible to weather conditions; prolonged periods of rain can lead to mold and spoilage, affecting the quality of the medicinal material. In recent years, with the application of modern technology, various drying methods have emerged, including low-temperature freeze-drying, vacuum freeze-drying, microwave drying, and spray drying. While these methods have solved the problems associated with traditional methods, the expensive equipment used in these new processes significantly increases production costs, preventing the achievement of comprehensive economic benefits.

[0004] For example, the invention patent with patent number CN108458558A, entitled "A Method for Air-drying Chinese Herbal Medicines," describes the process as follows: "A. Collecting fresh Chinese herbal medicines after the dew has dried on a sunny day; B. Spreading the fresh Chinese herbal medicines from step A evenly on bamboo trays in a sealed room, where several shelves are placed; the bamboo trays are placed on the shelves; and a dehumidifier is installed in every 50 cubic meters of space in the sealed room; C. Closing the sealed room, turning on the dehumidifiers, and dehumidifying for 10-15 hours." 2 hours, then turn off the dehumidifier and let the Chinese medicinal herbs sit for 5-6 hours to allow them to regain moisture; D, turn the dehumidifier back on for 10-12 hours, then turn it off for 5-6 hours, repeating this process several times until the moisture content of the Chinese medicinal herbs drops below 15%. This method of "air-drying Chinese medicinal herbs" involves air-drying the herbs in a closed space using a dehumidifier, without considering the cost of the drying area. Using a dehumidifier results in excessive costs and fails to simulate natural air-drying. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the present invention provides a method for drying Artemisia capillaris.

[0006] The specific technical solution of this invention is as follows:

[0007] A drying method of Artemisia Scoparia, characterized in that it comprises: uniformly laying 5-6 layers of Artemisia Scoparia, each layer being laid to a thickness of 3-5 cm.

[0008] As a further improvement, each layer of the Artemisia Scoparia is spaced 20-30 cm apart.

[0009] As a further improvement, a shading net is used to shade the Artemisia Scoparia.

[0010] As a further improvement, the Artemisia Scoparia is harvested on sunny days.

[0011] As a further improvement, the longer roots of the Artemisia Scoparia are trimmed, the main root length is less than 0.5 cm, the base of the Artemisia Scoparia is removed, and the dry or yellow leaves are removed.

[0012] As a further improvement, the Artemisia Scoparia is turned over once a day for 1-3 days during the drying process, and after the third day, the Artemisia Scoparia is no longer turned over when the moisture content is low. During the drying process, the air blower is turned on during the day, the air blower is turned on for 8-10 hours during the day, the wind speed is 2.0-2.5 m / s, and the air blower is turned off at night to allow the Artemisia Scoparia to regain moisture. This process is repeated several times until the Artemisia Scoparia is completely dried, and the dried Artemisia Scoparia has a moisture content of less than 13%. Preferably, the air blower is turned on for 9 hours during the day, and the wind speed is 2.25 m / s.

[0013] As a further improvement, the dried Artemisia Scoparia is transported to a processing room in a timely manner, and the dried Artemisia Scoparia is sterilized and disinfected with a UV lamp for 20-40 minutes to obtain sterilized and disinfected Artemisia Scoparia. Preferably, the dried Artemisia Scoparia is sterilized and disinfected with a UV lamp for 30 minutes.

[0014] As a further improvement, the sterilized and disinfected Artemisia Scoparia is packaged with a packaging machine.

[0015] As a further improvement, during the drying process, when it is raining, a rain cover is placed outside the shading net.

[0016] As a further improvement, 1-3 layers of the shading net are used to shade the Artemisia Scoparia, and the shading net has a light transmittance of 5-20%. Preferably, 2 layers of the shading net are used to shade the Artemisia Scoparia, and the shading net has a light transmittance of 10%.

[0017] A drying device for Artemisia Scoparia, the drying device for Artemisia Scoparia comprising a frame body, a shading net, an air blower, and a plurality of drying screens, the height of the drying screens is 6-10 cm, the bottom of the drying screens is provided with a nylon mesh with a pore size of 0.5-1.5 mm, the bottom of the frame body is provided with a plurality of universal wheels, and the shading net covers the top and two sides of the frame body.

[0018] The bottom of the frame body is provided with four universal wheels, the distance between the bottom of the frame body and the ground is 10-20 cm, the length of the frame body is 100-120 cm, the width of the frame body is 80-100 cm, the height of the frame body is 150-175 cm, the frame body is provided with a clamping groove every 25 cm from the bottom, the airing screen is arranged on the clamping groove, and the number of the airing screen is 5-6, preferably, the distance between the bottom of the frame body and the ground is 15 cm, the length of the frame body is 110 cm, the width of the frame body is 90 cm, the height of the frame body is 175 cm, and the number of the airing screen is 6, preferably, the height of the airing screen is 8 cm, the nylon net is arranged at a position 1 cm high from the bottom of the airing screen, and the pore size of the nylon net is 1 mm.

[0019] The application has the advantages that the application provides a drying method and preparation method of Yinchen, 1. the drying method can save drying space, 2. the drying method can freely select a place for shade drying, 3. the drying method can simulate natural shade drying, 4. the drying method can eliminate pathogenic bacteria and prevent the traditional Chinese medicinal materials from being wormy, mildewed and deteriorated during storage. The drying method of the application ensures the inherent color and smell of Yinchen, ensures the medicinal properties of Yinchen, and increases the content of chlorogenic acid by 12.5%. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 FIG. 1 is a perspective view of a Yinchen shade drying device according to some specific embodiments of the drying method of Yinchen according to the application;

[0021] FIG. 1 is a perspective view of a Yinchen shade drying device according to some specific embodiments of the drying method of Yinchen according to the application; DETAILED DESCRIPTION

[0022] The following examples further illustrate the application, but should not be construed as limiting the application. Modifications or replacements of the method, steps or conditions of the application without departing from the spirit and essence of the application shall fall within the scope of the application.

[0023] Example 1: a drying method of Yinchen, comprising:

[0024] S1, selecting sunny weather to dig Yinchen, and transporting the Yinchen to a sorting and drying site;

[0025] S2, cutting off the longer roots of the Yinchen, removing the dry or yellow leaves at the base of the Yinchen, and picking impurities, wherein the impurities include dry branches, leaves, weeds, soil clumps and stones;

[0026] S3, the capillaris is placed in the ventilated and light place, and is dried until wilting, and is uniformly laid on the drying screen 3 of the capillaris drying device 1, 3cm thickness of the capillaris is laid on each drying screen 3, the capillaris drying device 1 includes a frame body 2, a shading net, a blower and a plurality of drying screens 3, four universal wheels 5 are arranged on the bottom of the frame body 2, the distance between the bottom of the frame body 2 and the ground is 10cm, the length of the frame body 2 is 100cm, the width of the frame body 2 is 80cm, and the height of the frame body 2 is 150cm, the frame body 2 is provided with a clamping groove 6 every 20cm from the bottom, the drying screen 3 is arranged on the clamping groove 6, the number of the drying screen 3 is 5, the height of the drying screen 3 is 6cm, the nylon net 4 is arranged at the height of 0.5cm of the bottom of the drying screen 3, the aperture of the nylon net 4 is 0.5mm, the shading net covers the top surface and the two side surfaces of the frame body 2, the shading net adopts a single-layer shading net, and the light transmittance of the shading net is 20%;

[0027] S4, drying for 1-3 days, the capillaris is turned over once a day, after drying for 3 days, the capillaris is no longer turned over when the water content of the capillaris is low, the blower is started in the daytime during the drying, the blower is started for 8h in the daytime, the wind speed is 2.0m / s, the blower is stopped at night, the capillaris is re-humidified, the operation is repeated for several times until the capillaris is completely dried, and the dried capillaris is obtained;

[0028] S6, the dried capillaris is transported to a processing room in time, the dried capillaris is sterilized and disinfected by using a ultraviolet lamp for 20min, and the sterilized and disinfected capillaris is obtained;

[0029] S7, the sterilized and disinfected capillaris is packaged by using a packaging machine.

[0030] It should be noted that the blower, the shading net and the rainproof cloth in the drawings of the present application are not shown.

[0031] Embodiment 2: different from embodiment 1, the frame body 2 is provided with a clamping groove 6 every 25cm from the bottom, and 4cm thickness of the capillaris is laid on each drying screen 3.

[0032] Embodiment 3: different from embodiment 1, the frame body 2 is provided with a clamping groove 6 every 30cm from the bottom, and 5cm thickness of the capillaris is laid on each drying screen 3.

[0033] Embodiment 4: different from embodiment 2, two layers of shading nets are used to cover the top surface and the two side surfaces of the frame body 2, and the light transmittance of the shading net is 10%.

[0034] Embodiment 5: different from embodiment 4, the distance between the bottom of the frame body 2 and the ground is 15cm, the length of the frame body 2 is 110cm, the width of the frame body 2 is 90cm, and the height of the frame body 2 is 175cm.

[0035] Example 6: Different from example 4, the bottom of the frame body 2 is 20 cm away from the ground, the length of the frame body 2 is 120 cm, the width is 100 cm, the height is 175 cm, and the number of the airing screens 3 is 6.

[0036] Example 7: Please refer to Figure 1 different from example 6, the height of the airing screen 3 is 8 cm, and the nylon net 4 with a pore size of 1 mm is arranged at a height of 1 cm from the bottom of the airing screen 3.

[0037] Example 8: Different from example 6, the height of the airing screen 3 is 10 cm, and the nylon net 4 with a pore size of 1.5 mm is arranged at a height of 1.5 cm from the bottom of the airing screen 3.

[0038] Example 9: Different from example 7, the air blower 9 is turned on for 9 hours during the day, and the wind speed is 2.25 m / s.

[0039] Example 10: Different from example 7, the air blower 10 is turned on for 10 hours during the day, and the wind speed is 2.5 m / s.

[0040] Example 11: Different from example 9, the ultraviolet lamp is used to sterilize and disinfect the dried capillaris for 30 minutes.

[0041] Example 12: Different from example 9, the ultraviolet lamp is used to sterilize and disinfect the dried capillaris for 40 minutes.

[0042] Example 13: Different from example 9, three layers of shading nets are used, and the light transmittance of the shading nets is 5%.

[0043] Comparative example 1: The drying method of patent number CN108458558A, entitled "A method for drying traditional Chinese medicinal materials" is used to dry the capillaris.

[0044] Comparative example 2: The capillaris is dried by the conventional drying method. The capillaris is spread on the drying field with a thickness of 8 cm, and is turned over once a day until it is dried.

[0045] Comparative example 3: Different from example 1, the bottom of the frame body 2 is in contact with the ground, the length of the frame body 2 is 90 cm, the width is 60 cm, the height is 120 cm, the frame body 2 is provided with a clamping groove 6 every 10 cm from the bottom, the airing screen 3 is arranged on the clamping groove 6, and the number of the airing screen 3 is 7.

[0046] Comparative example 4: Different from example 1, the air blower is not used.

[0047] Comparative example 5: Different from example 1, the sterilization and disinfection operation is not performed.

[0048] Test Example 1: 1000 kg of Artemisia Argyi was dried by the method of Example 1 and the method of Comparative Example 2, respectively.

[0049] The drying area of Comparative Example 2 is 200 m 2 . According to the calculation of continuous sunny weather, the drying time needs 6-7 days, and the number of manual turning is 4-5 times. If the method of Example 1 is used for drying, the required drying area is 40 m 2 , which saves 80% of the drying area. The drying time needs 4-5 days, which saves 2-3 days of drying time. The manual turning is 2-3 times, which saves 2-3 times of manual turning. During the drying of 1000 kg of Artemisia Argyi by the method of Example 1, 1 air blower is needed, and the air blowing time is 10 hours per day. The total electricity consumption is about 30 degrees per day. The industrial electricity is 0.6 yuan per degree, and the total electricity cost is 18 yuan. However, 2-3 days of drying time and 2-3 times of manual turning are saved. At the same time, 160 m 2 of drying area is saved. It can be concluded that the drying method of Artemisia Argyi provided by the present application saves time, labor and space.

[0050] Test Example 2: Comparison of the effects of different drying methods on the appearance color, texture and smell of Artemisia Argyi.

[0051] The appearance color, texture and smell of Artemisia Argyi obtained by the drying method of the present application are obviously different from those obtained by the existing drying method. 10 observers were randomly selected to observe the appearance color, texture and smell of Artemisia Argyi dried by Examples 1-13 and Comparative Examples 1-5. The appearance color, texture and smell standards and score table of each group of Artemisia Argyi are shown in Table 1. Among them, the color of dried Artemisia Argyi is grayish white and gray green, followed by light gray green; the texture of dried Artemisia Argyi is soft and fluffy, and the group is optimal, followed by soft, group, soft, fragile and blocky; the smell of dried Artemisia Argyi is fragrant, followed by light fragrance and slight fragrance.

[0052] Table 1. Appearance color, texture and smell standards and score table of each group of Artemisia Argyi

[0053]

[0054] Artemisia Argyi was dried by the method of Examples 1-13 and Comparative Examples 1-5, respectively. The appearance color, texture and smell of each group of Artemisia Argyi were evaluated, and the experimental results are shown in Table 2.

[0055] Table 2. Appearance color, texture and smell evaluation table of each group of Artemisia Argyi

[0056]

[0057]

[0058] From Table 2, it can be seen that, compared with Examples 1-13, Comparative Examples 3-4 respectively change a single step in the drying method (the arrangement of frame body 2 and airing screen 3, whether a blower is used, whether sterilization is performed), and the appearance color, texture and odor of Examples 1-13 are better than those of Comparative Examples 3-4. It can be concluded that changing any step parameter or condition in the drying method of the application will affect the appearance color, texture and odor. Comparative Example 1 uses the existing technology of air drying, and the appearance color, texture and odor are poorer than those of Examples 7, 9, 11 and 12 of the application. This shows that the drying method provided by the application can obtain better appearance color, texture and odor of the wormwood than the method of Comparative Example 1. Comparative Example 2 uses a traditional and conventional drying method to dry the wormwood, and the appearance color, texture and odor are poorer than those of Examples 1-13 of the application. This shows that the drying method provided by the application can obtain better appearance color, texture and odor of the wormwood than the method of Comparative Example 2. The appearance color, texture and odor of Examples 7 and 9 are close to those of Examples 11, 12 and 13.

[0059] Test Example 3: Detection of chlorogenic acid content in wormwood treated by different methods

[0060] The chlorogenic acid content in wormwood treated by different methods was detected by high performance liquid chromatography, and the specific operation was as follows:

[0061] The same weight of wormwood dried in Examples 1, 4, 7, 9, 11, 12, 13 and Comparative Examples 1-2 was weighed to prepare a standard sample. A Waters ACQUITY UPLC BEH C18 chromatographic column (1.7 μm 2.1x100 mm) was used, the mobile phase was A: 0.1% formic acid water and B: acetonitrile; gradient elution: 0-4 min (2%-13% B), 4 min-9 min (13%-24% B), 9 min-11 min (24%-90% B), 11 min-16 min (90%-2% B); the flow rate was controlled at 0.3 mL·min-1; the detection wavelength was 310 nm; the column temperature was 35°C; and the injection volume was 2 μL. -1

[0062] Table 3. Chlorogenic acid content table

[0063]

[0064]

[0065] ​Green acid is a kind of phenylpropanoid synthesized by plant cells through the shikimic acid pathway, has the pharmacological effects of antioxidant, antibacterial, antiviral, antitumor, hypolipidemic, hypoglycemic and immunomodulatory, therefore the content of green acid plays a role in the effectiveness of the herb. As can be seen from Table 3, the green acid content of Example 1, Example 4, Example 7, Example 9, Example 11, Example 12 and Example 13 is higher than that of Comparative Example 2, and the highest green acid content is increased by 12.5%, the green acid content of Example 1 is lower than that of Example 4, which shows that the green acid content is related to the number of layers and light transmittance of the shading net, the use of double-layer shading net can reduce the loss of green acid in the herb, the green acid content of Example 9 is not much different from that of Example 13, which shows that the use of double-layer shading net and the use of three-layer shading net have little effect on the green acid content in the herb, the green acid content of Example 4 is lower than that of Example 7, which shows that the green acid content is related to the height of the airing sieve 3 and the aperture of the nylon net 4, the use of the airing sieve 3 with a height of 8 cm and the nylon net 4 with an aperture of 1 mm at a height of 1 cm from the bottom of the airing sieve 3 can reduce the loss of green acid in the herb, the green acid content of Example 7 is lower than that of Example 9, Example 11 and Example 12, which shows that the green acid content is related to the setting of the air blower, the use of the air blower for 9 h with a wind speed of 2.25 m / s in the daytime can further reduce the loss of green acid in the herb.

[0066] Test Example 4: aflatoxin content detection, the dried herbs of Example 9, Example 11, Example 12 and Comparative Example 5 are stored in the same place for the same time, the same weight of the herbs is weighed from them, and the aflatoxin content is detected, the high performance liquid chromatography method is used to detect the aflatoxin content.

[0067] The specific operation is as follows: the chromatographic conditions are as follows: Inert Sustain C18 chromatographic column (4.6 mm x 250 mm, 5 μm); column temperature 35 DEG C; methanol-acetonitrile-water (40:18:42) is used as the mobile phase, the flow rate is 1.0 m L / min; the injection amount is 20 μL; the post-column photochemical derivatization method is used, and the fluorescence detector is used for detection.

[0068] Table 4. Aflatoxin content table

[0069]

[0070] In the storage process, it is easy to mildew in high temperature and humid weather, and the aflatoxin exceeds the standard, therefore, according to table 4, the aflatoxin contents of example 9, example 11, example 12 and example 13 of the present application are all lower than that of the control example 5, which shows that the aflatoxin content is related to the sterilization and disinfection operation, and the sterilization and disinfection operation can effectively reduce the aflatoxin content generated in the storage process of the capillaris, the aflatoxin content of example 13 of the present application is slightly higher than that of example 9, which shows that the aflatoxin content is related to the layer number and light transmittance of the shading net, and the aflatoxin content is lower when the double-layer shading net (the light transmittance is 10%) is used, the aflatoxin content of example 9 of the present application is slightly higher than that of example 11 and example 12, which shows that the aflatoxin content is related to the sterilization and disinfection time, and the aflatoxin content is the lowest when the sterilization and disinfection time is 20min-30min.

Claims

1. A method for drying Artemisia capillaris, characterized in that, include: Spread the Artemisia capillaris evenly in 5-6 layers, with each layer being 3-5 cm thick. Shading nets were used to block the light from the Artemisia capillaris. For the first 1-3 days of air drying, turn the Artemisia capillaris over once a day. After 3 days of air drying, when the moisture content of the Artemisia capillaris is low, stop turning it over. During the air drying period, turn on the blower during the day for 8-10 hours at a speed of 2.0 m / s-2.5 m / s, and turn it off at night to allow the Artemisia capillaris to regain moisture. Repeat this process several times until it is completely air-dried, resulting in air-dried Artemisia capillaris with a moisture content of less than 13%. The air-dried Artemisia capillaris is promptly transported to the processing room and sterilized with ultraviolet light for 20-40 minutes to obtain sterilized Artemisia capillaris. The sterilized Artemisia capillaris is then packaged using a packaging machine.

2. The method for drying Artemisia capillaris according to claim 1, characterized in that, Each layer of Artemisia capillaris is spaced 20cm-30cm apart.

3. The method for drying Artemisia capillaris according to claim 1, characterized in that, Harvesting of Artemisia capillaris is done in sunny weather.

4. The method for drying Artemisia capillaris according to claim 3, characterized in that, Cut off the longer roots of the Artemisia capillaris so that the main root is less than 0.5 cm long. Remove the dry or yellow leaves at the base of the Artemisia capillaris and pick out any impurities.

5. A method for drying Artemisia capillaris according to claim 1, characterized in that, The blower runs for 9 hours during the day, with a wind speed of 2.25 m / s.

6. A method for drying Artemisia capillaris according to claim 5, characterized in that, The air-dried Artemisia capillaris was sterilized and disinfected with ultraviolet light for 30 minutes.

7. The method for drying Artemisia capillaris according to claim 1, characterized in that, During the air-drying period, if rainy weather occurs, cover the outside of the shade net with a rainproof cloth.

8. A method for drying Artemisia capillaris according to claim 1, characterized in that, The shading net is used in 1-3 layers to block light from the Artemisia capillaris, and the light transmittance of the shading net is 5%-20%.

9. A method for drying Artemisia capillaris according to claim 8, characterized in that, Two layers of shade netting were used to block light from the Artemisia capillaris, and the light transmittance of the shade netting was 10%.

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