Drying method of vinegar curcuma zedoary

Abstract

The invention discloses a method for drying vinegar curcuma zedoary. The method comprises the following steps: preparing raw materials, cooking with vinegar, cutting, drying, cooling, checking and packaging. The drying comprises combined quick drying, deep drying and final drying, the quick drying utilizes microwave radiation to quickly remove moisture in the curcuma zedoary tablets, the drying time is shortened, the deep drying ensures that moisture in the curcuma zedoary tablets is completely removed, the curcuma zedoary tablets are hard and brittle in texture and medicinal components are retained, and the final drying removes final residual moisture, so that the storage stability is ensured; the drying processes complement each other, uniform and rapid drying is ensured, effective components are reserved, the drying efficiency and effect are optimal, and finally the high-quality vinegar curcuma zedoary is obtained.

Description

Technical Field

[0001] The invention relates to the technical field of vinegar-cured zedoaria drying, in particular to a vinegar-cured zedoaria drying method. Background Art

[0002] In the process of preparing traditional Chinese medicine, Curcuma zedoaria usually needs to be processed to enhance its efficacy and reduce side effects. Vinegar processing is one of the common processing methods, which is to soak or stir-fry Curcuma zedoaria in vinegar to enhance its effects of promoting blood circulation, removing blood stasis, eliminating accumulation and relieving pain.

[0003] In the preparation process of pickled zedoaria, drying is a crucial link. The drying of pickled zedoaria is to remove moisture quickly, efficiently and evenly, retain its effective ingredients, prevent mildew and deterioration, and ensure the long-term storage stability and efficacy of the medicinal material.

[0004] At present, the drying of Curcuma zedoaria is generally carried out by sun drying or single hot air drying, which easily leads to uneven drying. Some medicinal materials may be over-dried or under-dried. At the same time, the single drying method takes a long time to dry, and the production efficiency is low, resulting in high energy consumption and high cost.

[0005] Therefore, we propose a drying method for Curcuma zedoariae with vinegar. Summary of the invention

[0006] In order to overcome the shortcomings of the prior art, the present invention provides a method for drying vinegar-cured zedoaria, which combines rapid drying, deep drying and final drying. Rapid drying utilizes microwave radiation to quickly remove moisture in zedoaria slices and reduces the time required for drying. Deep drying ensures that moisture inside the zedoaria slices is completely removed, and the texture is hard and crisp, retaining medicinal ingredients. Final drying removes the last residual moisture and ensures storage stability. The methods complement each other, ensure uniform and rapid drying and retain effective ingredients, so that the drying efficiency and effect are optimized.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0008] A method for drying zedoariae zedoariae comprises the following steps:

[0009] Raw material preparation: Choose fresh or dried zedoaria that is firm, insect-free, and mold-free. Wash it with clean water to remove sand and impurities, and dry it for later use.

[0010] Vinegar cooking: Add the washed zedoaria and rice vinegar into the cooking pot at a ratio of 10:1-2, put 50-300kg of washed zedoaria into each pot, and cook for 4-6 hours;

[0011] Cutting: Cut the zedoary into slices or small pieces with a thickness of 2-4 mm;

[0012] Drying: The zedoaria slices are sequentially subjected to quick drying, deep drying and final drying;

[0013] Wherein, rapid drying is microwave drying;

[0014] Deep drying is any one of far infrared drying, hot air drying and vacuum drying;

[0015] Final drying is any one of airflow drying, vibration drying, freeze drying, ultrasonic drying and infrared drying;

[0016] Cooling: After the Curcuma slices are dried, take them out and place them in a ventilated place to cool naturally to room temperature;

[0017] Inspection: Use a moisture meter to check the moisture content of the Curcuma zedoaria slices. The qualified drying standard is that the moisture content is less than 10%. The Curcuma zedoaria slices that fail to meet the drying standards will enter the drying step again.

[0018] Packaging: Weigh and pack the dried and qualified Curcuma zedoaria tablets and store them in a cool and dry place.

[0019] As a preferred embodiment of the method for drying vinegar-curcuma zedoaria of the present invention, the rapid drying in S4 is carried out by microwave drying. Microwave drying: the zedoaria slices are evenly spread on the tray of the microwave dryer, the power is set to 800-1000W, and the drying time is 10-30 minutes.

[0020] As a preferred embodiment of the method for drying vinegar-curcuma zedoaria of the present invention, the deep drying in S4 adopts far-infrared drying, and the far-infrared drying is as follows: the zedoaria slices are evenly spread on the tray of the far-infrared dryer, the temperature is set to 50-70°C, and the drying time is 2-4 hours.

[0021] As a preferred embodiment of the drying method of the vinegar-curcuma zedoaria of the present invention, the deep drying in S4 is hot air drying, hot air drying: the zedoaria slices are placed in a hot air drying oven, the temperature is set to 50-60°C, and the drying time is 2-4 hours.

[0022] As a preferred embodiment of the drying method of the vinegar-curcuma zedoaria described in the present invention, wherein: the deep drying in S4 adopts vacuum drying, vacuum drying: the zedoaria slices are placed in a vacuum dryer, the temperature is set to 40-50°C, the drying time is 6-8 hours, and the vacuum degree is set to -0.08 to -0.1MPa.

[0023] As a preferred embodiment of the drying method of the vinegar-curcuma zedoaria of the present invention, the deep drying in S4 adopts airflow drying, airflow drying: the zedoaria slices are placed in the feed port of the airflow dryer, the temperature is set to 50-80°C, and the drying time is 10-30 minutes.

[0024] As a preferred embodiment of the drying method of the vinegar-curcuma zedoaria of the present invention, the deep drying in S4 adopts vibration drying, vibration drying: the zedoaria slices are placed in a vibration dryer, the vibration frequency is set to 20-30 Hz, the drying time is 1-2 hours, and the temperature is 60-70°C.

[0025] As a preferred embodiment of the drying method of vinegar-curcuma zedoaria described in the present invention, the deep drying in S4 adopts freeze drying, freeze drying: the zedoaria slices are spread on a freezing tray, cooled to below -40°C, and sublimation dried under vacuum conditions for 24-48 hours, and the temperature of the sublimation process is gradually increased to 0°C.

[0026] As a preferred embodiment of the drying method of the vinegar-curcuma zedoaria of the present invention, the deep drying in S4 adopts ultrasonic drying, ultrasonic drying: the zedoaria slices are placed in an ultrasonic dryer, the ultrasonic frequency is set to 20-40kHz, the drying time is 30-60 minutes, and the temperature is 50-60°C.

[0027] As a preferred embodiment of the method for drying vinegar-curcuma zedoaria of the present invention, the deep drying in S4 adopts infrared drying, infrared drying: the zedoaria slices are placed in an infrared dryer, the temperature is set to 50-70°C, and the drying time is 1-2 hours.

[0028] Compared with the prior art, the present invention can achieve the following beneficial effects:

[0029] Through the design of combined rapid drying, deep drying and final drying, rapid drying uses microwave radiation to quickly remove moisture from the Curcuma zedoaria tablets and reduce the time required for drying. Deep drying ensures that the moisture inside the Curcuma zedoaria tablets is completely removed, and the texture is hard and crisp, retaining the active ingredients. Final drying removes the last residual moisture and ensures storage stability. Each drying process complements each other to ensure uniform and rapid drying while retaining the active ingredients, so that the drying efficiency and effect are optimized. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 The present invention is a flowchart of a method for drying Curcuma zedoaria with vinegar. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0034] Example

[0035] Please refer to Figure 1 As shown, this embodiment provides a method for drying Curcuma zedoariae with vinegar, comprising the following steps:

[0036] Step 1. Raw material preparation: Select fresh or dried zedoaria with solid texture, no insects or mildew, wash it with clean water, remove sand and impurities, and dry it for later use. Among them, high-quality zedoaria has thick and complete rhizomes, smooth or slightly wrinkled epidermis, yellow or orange-yellow cross-section, fragrant smell, unique turmeric aroma, and no peculiar smell. Generally, select zedoaria rhizomes with a growth period of more than two years, when the medicinal ingredients are the richest;

[0037] Step 2: Boil with vinegar: Add the washed zedoaria and rice vinegar into the cooking pot at a ratio of 10:1-2, add 50-300kg of washed zedoaria to each pot, and boil for 4-6 hours;

[0038] Step 3: Cutting: Cut the zedoaria into slices or small pieces with a thickness of 2-4 mm;

[0039] Step 4, drying: the zedoary turmeric slices are sequentially subjected to quick drying, deep drying and final drying; wherein the quick drying is microwave drying; the deep drying is any one of far-infrared drying, hot air drying and vacuum drying; the final drying is any one of airflow drying, vibration drying, freeze drying, ultrasonic drying and infrared drying; the combination of quick drying, deep drying and final drying significantly improves the drying uniformity of the zedoary turmeric slices, avoids the problem of local over-drying or under-drying that may be caused by the traditional single drying method, greatly shortens the drying time, improves the production efficiency, optimizes the drying effect, and ensures that the moisture content of the dried zedoary turmeric slices is extremely low;

[0040] Specifically, microwave drying: the zedoary slices are evenly spread on the tray of the microwave dryer, the power is set to 800-1000W, the drying time is 10-30 minutes, the drying state is checked every 5 minutes during the drying process to prevent over-drying, and during the drying process, the zedoary slices are evenly distributed in the microwave dryer to avoid overlapping to ensure uniform microwave radiation, and the moisture in the zedoary slices is quickly removed by microwave radiation to quickly dry the zedoary slices. Microwave drying has the characteristics of fast speed and good uniformity, and the zedoary slices are quickly dried by microwaves;

[0041] Specifically, far-infrared drying: the zedoary slices are evenly spread on the tray of the far-infrared dryer, the temperature is set to 50-70℃, the drying time is 2-4 hours, and during the drying process, the zedoary slices are turned over every 30 minutes to ensure that the far-infrared radiation is evenly distributed, and the infrared radiation penetrates the zedoary slices to ensure that the internal moisture is completely evaporated, and further remove the moisture to ensure that the internal moisture of the zedoary slices is completely removed, and the texture is hard and crisp to retain the medicinal ingredients;

[0042] Specifically, hot air drying: the zedoary turmeric tablets are placed in a hot air drying oven, the temperature is set to 50-60°C, the drying time is 2-4 hours, and the tablets are turned over once every hour to ensure that the hot air is evenly distributed. During the drying process, the air circulation of the hot air drying oven is maintained to accelerate the evaporation of water, and to prevent uneven drying caused by excessive temperature or low humidity. The hot air is used to further dry and remove the water in the zedoary turmeric tablets, improve the drying efficiency, ensure that the water inside the zedoary turmeric tablets is completely removed, and the texture is hard and crisp to retain the medicinal ingredients;

[0043] Specifically, vacuum drying: the zedoary tablets are placed in a vacuum dryer, the temperature is set at 40-50°C, the drying time is 6-8 hours, and the vacuum degree is set at -0.08 to -0.1MPa, ensuring that they are dried in a low temperature environment, removing moisture through a vacuum environment under low temperature conditions, preventing the degradation of heat-sensitive components, drying evenly, retaining heat-sensitive components, ensuring that the moisture inside the zedoary tablets is completely removed, and the texture is hard and brittle to retain the medicinal components;

[0044] Specifically, airflow drying: put the zedoaria slices into the feed port of the airflow dryer, set the temperature to 50-80°C, the drying time to 10-30 minutes, control the airflow speed to ensure uniform drying, quickly remove the residual moisture through high-speed hot airflow, ensure the final drying effect, remove the last residual moisture, ensure storage stability, remove the last residual moisture, ensure storage stability, ensure uniform and rapid drying and retain the effective ingredients, so that the drying efficiency and effect are optimized;

[0045] Specifically, vibration drying: the zedoaria slices are placed in a vibration dryer, the vibration frequency is set to 20-30Hz, the drying time is 1-2 hours, the temperature is 60-70℃, the vibration dryer vibrates evenly to accelerate the evaporation of water, improve the drying efficiency, remove the last residual water, ensure storage stability, ensure uniform and rapid drying and retain the effective ingredients, so that the drying efficiency and effect are optimized;

[0046] Specifically, freeze drying: the zedoary slices are spread on a freezing tray, cooled to below -40°C, and sublimation dried under vacuum conditions for 24-48 hours. The temperature of the sublimation process is gradually increased to 0°C. Through the principles of freezing and sublimation, the water in the zedoary slices is directly converted into a gaseous state at low temperature, thereby achieving the purpose of drying. Freeze drying can maximize the preservation of the medicinal ingredients and tissue structure of the zedoary, remove the last residual water, ensure storage stability, ensure uniform and rapid drying, and retain the effective ingredients, so that the drying efficiency and effect are optimized;

[0047] Specifically, ultrasonic drying: put the zedoary slices into the ultrasonic dryer, lay them evenly to avoid stacking, ensure uniform distribution of ultrasonic waves, set the ultrasonic frequency to 20-40kHz, the drying time to 30-60 minutes, and the temperature to 50-60°C, use ultrasonic energy to promote water evaporation, improve drying uniformity, remove the last residual moisture, ensure storage stability, ensure uniform and rapid drying and retain effective ingredients, so that the drying efficiency and effect are optimized;

[0048] Specifically, infrared drying: put the zedoary slices into the infrared dryer, set the temperature to 50-70℃, and dry for 1-2 hours. During the drying process, turn the zedoary slices every 30 minutes to ensure uniform radiation of infrared rays and uniform evaporation of moisture in all parts, further achieving uniform drying of the zedoary slices, making the texture harder and crisper, removing the last residual moisture, ensuring storage stability, ensuring uniform and rapid drying, and retaining effective ingredients, so that the drying efficiency and effect are optimized;

[0049] Step 5, cooling: After the zedoary slices are dried, take them out and place them in a ventilated place to cool naturally to room temperature. During the cooling process, keep the zedoary slices ventilated to prevent moisture from being reabsorbed;

[0050] Step 6, inspection: Use a moisture meter to check the moisture content of the zedoary turmeric tablets. The qualified drying standard is that the moisture content is less than 10%. The unqualified zedoary turmeric tablets will re-enter the drying step. The qualified zedoary turmeric tablets are hard and crisp, and the medicinal ingredients are well preserved. Check the color and texture of the dried zedoary turmeric tablets to ensure that there is no discoloration and deterioration. Ensure that the dried zedoary turmeric tablets are stable at room temperature and easy to store. The dried good quality vinegar zedoary turmeric is characterized by: complete shape, uniform tablet shape, smooth surface, no breakage, uniform color, yellow or orange-yellow, and no burnt spots or discoloration;

[0051] Step 7. Packaging: Weigh and package the dried and qualified Curcuma zedoaria tablets, and store them in a cool and dry place. The packaging requires accurate weighing, tight sealing, and no drug jams or leakage. Each package is affixed with a certificate of conformity, and the content of the certificate is clear and complete.

[0052] Through the design of combined rapid drying, deep drying and final drying, rapid drying uses microwave radiation to quickly remove moisture from the Curcuma zedoaria tablets and reduce the time required for drying. Deep drying ensures that the moisture inside the Curcuma zedoaria tablets is completely removed, and the texture is hard and crisp, retaining the medicinal ingredients. Final drying removes the last residual moisture and ensures storage stability. Each drying process complements each other to ensure uniform and rapid drying while retaining the effective ingredients, so that the drying efficiency and effect are optimized, and finally high-quality vinegar Curcuma zedoaria is obtained.

[0053] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A method for drying Rhizoma Curcumae Rhizoma with vinegar, characterized in that: The steps include: S1. Raw material preparation: Select fresh or dried zedoaria that is firm, insect-free, and mildew-free. Wash the zedoaria with clean water, remove the sand and impurities, and dry it for later use. S2, cooking with vinegar: adding the washed zedoaria and rice vinegar into a cooking pot at a ratio of 10:1-2, putting 50-300 kg of washed zedoaria into each pot, and cooking for 4-6 hours; S3. Cutting: Cut the zedoaria into slices or small pieces with a thickness of 2-4 mm; S4, drying: performing quick drying, deep drying and final drying on the zedoary turmeric slices in sequence; Wherein, rapid drying is microwave drying; Deep drying is any one of far infrared drying, hot air drying and vacuum drying; Final drying is any one of airflow drying, vibration drying, freeze drying, ultrasonic drying and infrared drying; S5, cooling: after the Curcuma slices are dried, take them out and place them in a ventilated place to cool naturally to room temperature; S6. Inspection: Use a moisture meter to inspect the moisture content of the Curcuma zedoaria slices. The qualified drying standard is that the moisture content is less than 10%. Curcuma zedoaria slices that fail the drying step will re-enter the drying step. S7. Packaging: Weigh and pack the dried and qualified Curcuma zedoaria slices and store them in a cool and dry place.

2. A method for drying Rhizoma Curcumae Rhizoma in vinegar according to claim 1, characterized in that: The rapid drying in S4 adopts microwave drying. Microwave drying: the zedoaria slices are evenly spread on the tray of the microwave dryer, the power is set to 800-1000W, and the drying time is 10-30 minutes.

3. A drying method for pickled Curcuma zedoaria according to claim 1, characterized in that: The deep drying in S4 adopts far-infrared drying. Far-infrared drying: the zedoaria slices are evenly spread on the tray of the far-infrared dryer, the temperature is set to 50-70°C, and the drying time is 2-4 hours.

4. A method for drying Rhizoma Curcumae Rhizoma with vinegar according to claim 1, characterized in that: The deep drying in S4 adopts hot air drying. Hot air drying: the zedoaria slices are placed in a hot air drying oven, the temperature is set to 50-60° C., and the drying time is 2-4 hours.

5. A method for drying Rhizoma Curcumae Rhizoma with vinegar according to claim 1, characterized in that: The deep drying in S4 adopts vacuum drying. Vacuum drying: the zedoaria slices are placed in a vacuum dryer, the temperature is set to 40-50°C, the drying time is 6-8 hours, and the vacuum degree is set to -0.08 to -0.1MPa.

6. A method for drying Rhizoma Curcumae with vinegar according to claim 1, characterized in that: The deep drying in S4 adopts airflow drying. Airflow drying: the zedoaria slices are put into the feed port of the airflow dryer, the temperature is set to 50-80°C, and the drying time is 10-30 minutes.

7. A method for drying Rhizoma Curcumae Rhizoma with vinegar according to claim 1, characterized in that: The deep drying in S4 adopts vibration drying. Vibration drying: the zedoaria slices are put into a vibration dryer, the vibration frequency is set to 20-30 Hz, the drying time is 1-2 hours, and the temperature is 60-70°C.

8. A method for drying pickled Curcuma zedoaria according to claim 1, characterized in that: The deep drying in S4 adopts freeze drying. Freeze drying: the zedoaria slices are spread on a freezing tray, cooled to below -40°C, and sublimation dried under vacuum conditions for 24-48 hours, and the temperature gradually rises to 0°C during the sublimation process.

9. A method for drying pickled Curcuma zedoaria according to claim 1, characterized in that: The deep drying in S4 adopts ultrasonic drying. Ultrasonic drying: the zedoary turmeric slices are placed in an ultrasonic drying machine, the ultrasonic frequency is set to 20-40kHz, the drying time is 30-60 minutes, and the temperature is 50-60°C.

10. The method for drying Curcuma zedoaria with vinegar according to claim 1, characterized in that: The deep drying in S4 adopts infrared drying. Infrared drying: the zedoaria slices are placed in an infrared dryer, the temperature is set to 50-70° C., and the drying time is 1-2 hours.

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