Fresh-cut processing technology of native medicinal material camphor head red dried tangerine or orange peel

Abstract

The application belongs to the technical field of traditional Chinese medicinal material processing, and particularly relates to a fresh-cut processing technology for native medicinal material Camptodaphne Red Chenpi. The processing technology comprises the following steps: S1, taking native medicinal material Camptodaphne Red fresh fruits, cleaning, and airing or blowing dry; S2, peeling the fruits in a three-flower mode, and peeling and taking the outer pericarp, and placing the outer pericarp in an oven for moderate drying at 40-52 DEG C, and taking out; S3, cutting the outer pericarp into filaments with a width of 2.5+ / -0.2 mm, and placing the filaments in an oven for drying at 40-52 DEG C, to obtain fresh-cut native medicinal material Camptodaphne Red Chenpi filaments. The Camptodaphne Red Chenpi filaments obtained through the fresh-cut processing at the production site retain effective components to the maximum extent, shorten the production cycle, and save production cost, and the moisture, aflatoxin and other indexes of the Camptodaphne Red Chenpi filaments meet relevant standards.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of traditional Chinese medicinal material processing, and particularly relates to a fresh-cut processing technology for Jiangxi native medicinal material Zanthoxylum planispinum peel. BACKGROUND

[0002] The dried mature pericarp of Citrus reticulata Blanco and its cultivated varieties of Rutaceae has the effects of regulating qi, invigorating the spleen, drying dampness and reducing phlegm, and is one of the most commonly used bulk medicinal varieties. At present, the planting area of the base plant of the pericarp is rapidly increasing, and the product is increasingly rich.

[0003] Zanthoxylum planispinum peel is also one of the characteristic medicinal material varieties of "ten flavors of Jiangxi" and one of the main bases of Jiangxi pericarp; through continuous years of research and determination, Zanthoxylum planispinum peel has excellent nobiletin, tangeretin and part of the pharmacodynamic parameters, and has strong development potential and broad market prospect.

[0004] Fresh-cut refers to the processing method of cutting fresh medicinal materials or those treated in a certain way into slices, blocks, segments, petals, etc., and then drying. This method omits the step of secondary water soaking, avoids the loss of active ingredients during slow drying and soaking, and to some extent, ensures the quality of medicinal materials. At the same time, it reduces labor, facilitates storage and transportation, and saves costs. At present, many provinces and cities have included Pericarpium Citri Reticulatae in the list of fresh-cut medicinal materials. For the native medicinal material of Pericarpium Citri Reticulatae, the mature fruits are generally picked from early November to late November. The traditional processing method in the traditional production area is to cut the pericarp of fresh Pericarpium Citri Reticulatae in half horizontally into four petals, or to use a three-cut method or a three-cut machine to peel the pericarp to obtain three-flower pericarp or four-flower pericarp, and then to dry or low-temperature dry. Before clinical application, impurities need to be removed, water needs to be sprayed, the pericarp needs to be soaked, cut into silk, and dried to obtain Pericarpium Citri Reticulatae silk, which is directly used in clinical and preparation or through other processing techniques to obtain corresponding processed products, such as Pericarpium Citri Reticulatae stir-fried, Pericarpium Citri Reticulatae stir-fried carbon, Pericarpium Citri Reticulatae bran-fried, Pericarpium Citri Reticulatae earth-fried, and steamed Pericarpium Citri Reticulatae. The Chinese patent with publication number CN118235839A discloses a processing technology of Pericarpium Citri Reticulatae silk, which first uses high-temperature steam to clean the Pericarpium Citri Reticulatae, and then uses low-temperature steam to wet the Pericarpium Citri Reticulatae, and then cuts it into Pericarpium Citri Reticulatae silk. The process of cleaning the Pericarpium Citri Reticulatae with high-temperature steam leads to the loss of heat-sensitive components and volatile components in the Pericarpium Citri Reticulatae. CN116570011A also discloses a drying process of four-petal Pericarpium Citri Reticulatae, which uses sunning to kill water and a unique nine-steaming and nine-drying method, which effectively realizes the “dynamic” aging of Pericarpium Citri Reticulatae, that is, by adjusting the balance of temperature and moisture, the formation of microorganisms and colonies in the ecological environment of Pericarpium Citri Reticulatae is promoted, so as to fully oxidize the surface and inner sac of Pericarpium Citri Reticulatae, but this method inevitably causes serious loss of active ingredients contained in Pericarpium Citri Reticulatae. CN102085262A also discloses a processing method of traditional Chinese medicine Pericarpium Citri Reticulatae, which takes Pericarpium Citri Reticulatae raw products into a sealed container, adds water with a mass of 1-2 times of Pericarpium Citri Reticulatae, and soaks for 1-3 hours at room temperature, and then steams for 20-90 minutes at a temperature of 70-100℃. This processing method conforms to the geographical climate environment of Lingnan and the characteristics of syndrome medication, but it will cause the loss of polysaccharides in water vapor, and is not suitable for the native medicinal material of Pericarpium Citri Reticulatae in Jiangxi.

[0005] There are significant differences in the processing methods of pericarpium citri reticulatae in different regions. For example, the pericarp of tea branch orange in Xinhui, Guangdong, is rich in oil room and has strong aroma. During processing, it is emphasized to retain volatile oil and active ingredients, and to pursue the quality of "long-term storage". In Sichuan, Chongqing and other places, local varieties such as red orange and Fukumikan are used. The pericarp is thin or less oily, and the processing may focus on mildew prevention, flavor enhancement or drug efficacy extraction. The processing method may use baking and sulfur fumigation technology. Pericarpium citri reticulatae in Guangdong, Fujian and other regions is widely used for cooking, seasoning, tea making and other daily diet, and is pursued for its mellow aroma and soft taste. The processing focuses on flavor retention and aging process. The local citrus varieties in Jiangxi are mainly used for medicine. The purpose of processing is to retain all the ingredients contained in it as much as possible under the condition of mildew prevention. Therefore, the conventional processing method is to clean, shred and dry the medicinal materials before they can be used as medicine. Repeated water and heat treatment in traditional production and processing in the production area will cause certain loss of non-volatile components, volatile components and water-soluble components in the pericarpium citri reticulatae. SUMMARY

[0006] (I) Technical problems to be solved

[0007] In view of the problems of cross and repetition of traditional Chinese medicine production and processing, complicated processing operation, easy loss of effective components of traditional Chinese medicinal materials, and increased cost due to repeated operation, the present application provides a fresh cutting process for Jiangxi native medicinal material pericarpium citri reticulatae. The fresh cutting process in the production area can obtain pericarpium citri reticulatae silk with low price and high quality, and can maximize the retention of chemical components and stabilize the quality of medicinal materials.

[0008] (II) Technical scheme

[0009] The present application provides a fresh cutting process for native medicinal material pericarpium citri reticulatae in the production area, which comprises the following steps:

[0010] S1. Take the native medicinal material pericarpium citri reticulatae fresh fruit, clean, dry or blow dry;

[0011] S2. Open the skin in three flowers, peel the outer pericarp, and place the outer pericarp in an oven at 40-52℃ for moderate drying, and take out;

[0012] S3. Cut the outer pericarp into a width of 2.5±0.2mm thin silk, and then place it in a 40-52℃ oven for drying, to obtain fresh cutting native medicinal material pericarpium citri reticulatae silk.

[0013] In step S1, the maturity of the native medicinal material pericarpium citri reticulatae fresh fruit is classified according to the coloration area rate. The coloration area rate≥90% is first grade, the coloration area rate<90% and≥80% is second grade, and the coloration area rate<80% is third grade. The same batch of pericarpium citri reticulatae fresh fruit of the same grade is used for subsequent processing.

[0014] The maturity grading adopts an automatic sorting equipment, and the Camphor tree red fresh fruits are classified into three grades by identifying the coverage rate of the color representing maturity (Lab colorimeter detection, a value (redness) ≥ 15.0) on the surface of the fruits.

[0015] The cleaning in the step S1 adopts micro-nano air bubble water with a temperature of 25±2℃ and a pH of 6.2-6.8 (adjusted by citric acid) and 40 kHz low-frequency ultrasonic cleaning, and the cleaning time is 3-5 min, so as to remove the pesticide residues and reduce the loss of water-soluble components; after the cleaning, dehydration is performed by centrifugation at 300-500 rpm, and the surface moisture of the Camphor tree red fresh fruits is dried to 8-10% by using purified air flow at room temperature. The weakly acidic water washing environment is more conducive to the stability of flavonoids in the pericarp and the control of microorganisms. The "micro-nano bubble + ultrasonic" collaborative cleaning is more effective in removing pesticide residues than the traditional water washing. The low-speed centrifugal dehydration prevents the rupture of the cells and essential oil sacs of the pericarp of the fresh fruits. The purified air flow drying is better than the traditional sun drying method in improving the retention rate of components in the product. The low shear cleaning of the nano bubble water reduces the loss of flavonoids compared with the high-pressure water washing.

[0016] In the step S2, the operation method for drying the outer pericarp is as follows: sequentially drying in ovens at 40℃, 45℃ and 50℃ for 20-25 min, so as to promote the water gradient migration.

[0017] In the step S3, 0.1% w / w microcrystalline cellulose water mist is sprayed during cutting to reduce the adhesion of fine filaments and facilitate the subsequent drying operation; the drying adopts pulse drying, that is, 50℃ / 42℃ is alternated at a frequency of 15 min / 5 min, and the drying time is 3-5 h; near-infrared online detection is adopted, and the terminal moisture is controlled to be 12±0.5%.

[0018] The microcrystalline cellulose anti-sticking treatment reduces the breakage rate of the cut filaments, so as to reduce the loss of polysaccharides; the 50℃ / 42℃ alternation reduces the loss of heat-sensitive substances such as limonene in the dried tangerine or orange peel, prevents the degradation of flavonoids caused by excessive drying, and reduces thermal damage; the pulse drying is better than constant temperature drying in helping to improve the retention rate of volatile oil. The dried tangerine or orange peel filaments contain a large amount of pectin and sugar (such as polysaccharides), and the adhesion of viscous substances from the cut surface during cutting easily leads to the adhesion between the filaments. The MCC forms a physical isolation layer after being sprayed, reducing the direct contact between the dried tangerine or orange peel filaments and the production equipment. The 0.1% w / w MCC water mist can form a covering film of about 2-5 μm on the surface of the dried tangerine or orange peel filaments, greatly reducing the adhesion between the filaments, and not affecting the taste, appearance and efficacy of the dried tangerine or orange peel filaments.

[0019] In the steps S2 and S3, the oven is a low-oxygen drying oven, and the oxygen content therein is controlled to be 8-12 v / v%, so as to reduce the polyphenol oxidation.

[0020] (III) Beneficial Effects

[0021] Technical effects of the present application include:

[0022] 1. In the traditional processing of medicinal pieces, the production site processing and processing production links are repeated, the processing operation is complicated, and the camphor head red pericarpium citri reticulatae medicinal materials need to be repeatedly treated with water and heat, which can cause the loss of effective components. The fresh camphor head red medicinal materials are cut by the production site fresh cutting process, so that the production process of the camphor head red pericarpium citri reticulatae is optimized, the quality of the medicinal materials is improved, the effective components are retained to the greatest extent, the production cycle is shortened, and the production cost is saved.

[0023] 2. The pericarpium citri reticulatae silk obtained by the fresh cutting process of the camphor head red pericarpium citri reticulatae is in line with the standard of Chinese Pharmacopoeia in terms of water content, aflatoxin and other indicators. Compared with the camphor head red pericarpium citri reticulatae silk processed by the method of Chinese Pharmacopoeia, the pericarpium citri reticulatae silk provided by the present application has higher effective component content and higher pericarpium citri reticulatae silk shape integrity rate, and can more effectively enhance the intestinal motility and show good effect on regulating qi. The process of the present application does not add any additive, the production cost is low, and the repeated water and heat treatment is avoided, so that the loss of effective components of the camphor head red pericarpium citri reticulatae is prevented. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 The fresh pericarpium citri reticulatae is obtained by the three-flower pericarpium citri reticulatae method.

[0025] Figure 2 The pericarpium citri reticulatae silk sample is obtained by the fresh cutting process of the camphor head red pericarpium citri reticulatae. DETAILED DESCRIPTION

[0026] In order to better explain the present application, the present application will be described in detail below in combination with specific embodiments.

[0027] In the following examples, the camphor head red pericarpium citri reticulatae described in the present application is obtained from the production site of Zhangshu City, Jiangxi Province. The cutting process is to cut the camphor head red pericarpium citri reticulatae by a linear reciprocating type medicine cutting machine (model: QRZG-300, Hangzhou Haishan Pharmaceutical Equipment Co., Ltd.) at room temperature (about 25℃).

[0028] The micro-nano air bubble water is realized by the dissolved gas pressure release method. The working process is: ① pressurized to 0.5-0.8 MPa to make air (reduced) super-saturated dissolution; ② instantaneously release pressure through a microporous ceramic plate (pore size 5-20 μm); ③ cavitation effect forms bubble groups (10 6 -10 8 μm), micro-bubble pressure 0.15 MPa.

[0029] Example 1

[0030] The embodiment provides a fresh-cut processing technology of native medicinal material Camptodaphne fruit, and the steps are as follows:

[0031] S1. The native medicinal material Camptodaphne fruit is taken, washed, and dried or blown dry.

[0032] The Camptodaphne fruit is classified according to maturity, the maturity is judged according to a coloring area rate, the coloring area rate is greater than or equal to 90% for the first level, the coloring area rate is less than 90% and greater than or equal to 80% for the second level, and the coloring area rate is less than 80% for the third level; the Camptodaphne fruit of the same level is processed in the same batch.

[0033] In the embodiment, the first level Camptodaphne fruit is used as raw material. The micro-nano air bubble water with a temperature of 25±2 DEG C and pH 6.8 (adjusted by citric acid) is used for collaborative cleaning with low-frequency ultrasound of 40 kHz for 5 min; after cleaning, centrifugal dewatering is carried out at 500 rpm, and the surface moisture is about 10% by blowing with purified air flow at room temperature.

[0034] S2. The fruit peel is peeled in a three-flower mode, and the outer pericarp is peeled off, Figure 1 The fruit peel obtained by the three-flower peeling is dried at 40 DEG C, 45 DEG C and 50 DEG C for 20 min, respectively, by adjusting the temperature of the oven.

[0035] S3. The outer pericarp is cut into a filament with a width of 2.5±0.2 mm, and 0.1% w / w microcrystalline cellulose is sprayed in the form of water mist during cutting; the filament is alternately dried at 50 DEG C / 42 DEG C in the oven at a frequency of 15 min / 5 min, near-infrared online detection is used, and the terminal moisture is controlled to be 11.8%, so that the fresh-cut native medicinal material Camptodaphne dried orange peel filament is obtained, and the sample is shown in Figure 2 .

[0036] In the above steps S2 and S3, the oven is provided with a low-oxygen atmosphere of 10 v / v%, and the atmosphere is provided by nitrogen and clean air mixed gas.

[0037] In the embodiment, the second level Camptodaphne fruit is used as raw material for processing, and the process steps are as follows:

[0038] S1. The micro-nano air bubble water with a temperature of 25±2 DEG C and pH 6.5 (adjusted by adding citric acid) is used for collaborative cleaning with low-frequency ultrasound of 40 kHz for 5 min; after cleaning, centrifugal dewatering is carried out at 500 rpm, and the surface moisture is about 10% by blowing with purified air flow at room temperature.

[0039] S2. The fruit peel is peeled in a three-flower mode, and the outer pericarp is peeled off, and the fruit peel is dried at 40 DEG C, 45 DEG C and 50 DEG C in the oven for 20 min, respectively, by adjusting the temperature of the oven.

[0040] S3. The outer pericarp was cut into filaments with a width of 2.5±0.2 mm, and 0.1% w / w microcrystalline cellulose water mist was sprayed during cutting; the filaments were alternately placed in ovens at 50°C / 42°C at a frequency of 15 min / 5 min, near-infrared online detection was used, and the terminal moisture was controlled at 12%, to obtain fresh-cut Zanthoxylum ailanthoides peel filaments. In the above steps S2 and S3, the ovens used a low-oxygen atmosphere of 10 v / v%, and the atmosphere was provided by a mixture of nitrogen and clean air.

[0041] Example 3

[0042] This example uses three-grade Zanthoxylum ailanthoides fresh fruits as raw materials for processing, and the process steps are as follows:

[0043] S1. The fruits were cleaned using micro-nano air bubble water at a temperature of 25±2°C and pH 6.2 (adjusted by citric acid) for 5 min in cooperation with low-frequency ultrasound at 40 kHz; after cleaning, the fruits were centrifuged for dehydration at 500 rpm, and then blown with purified air at room temperature until the surface moisture was about 10%.

[0044] S2. The pericarp was peeled in a three-flower manner, and the outer pericarp was dried in ovens at 40°C, 45°C, and 50°C for 20 min, respectively.

[0045] S3. The outer pericarp was cut into filaments with a width of 2.5±0.2 mm, and 0.1% w / w microcrystalline cellulose water mist was sprayed during cutting; the filaments were alternately placed in ovens at 50°C / 42°C at a frequency of 15 min / 5 min, near-infrared online detection was used, and the terminal moisture was controlled at 11.5%, to obtain fresh-cut Zanthoxylum ailanthoides peel filaments. In the above steps S2 and S3, the ovens used a low-oxygen atmosphere of 10 v / v%, and the atmosphere was provided by a mixture of nitrogen and clean air.

[0046] Comparative Example 1

[0047] This comparative example is based on Example 1, and the cleaning method in S1 is changed to: the fruits are washed with an 8 MPa high-pressure water (room temperature water) gun for 2 min, and after cleaning, the fruits are centrifuged for dehydration at 500 rpm, and then blown with purified air at room temperature until the surface moisture is about 10%. The other steps and conditions are the same as in Example 1.

[0048] Comparative Example 2

[0049] This comparative example is based on Example 1, and the treatment method in S2 is changed to: the pericarp is peeled in a three-flower manner, and the outer pericarp is continuously dried in an oven at 50°C for 60 min. The other steps and conditions are the same as in Example 1.

[0050] Comparative Example 3

[0051] The comparative example is based on Example 1, the treatment method in S3 is changed: the outer peel is cut into a filament with a width of 2.5±0.2 mm, dried in an oven at 50℃ for 4h, and the final moisture is controlled at 11.8%, to obtain fresh-cut Zanthoxylum bungeanum peel filaments.

[0052] Comparative Example 4

[0053] The comparative example is to treat Zanthoxylum bungeanum fresh fruit (first maturity) and use the method in Chinese Pharmacopoeia to process Zanthoxylum bungeanum peel filaments, as follows: the first maturity Zanthoxylum bungeanum fresh fruit is washed and dried to remove surface water, peeled, and the residual pulp is removed. The fresh peel is laid flat on a drying rack and dried by 50℃ hot air circulation for 5 hours until the water content is ≤30%. After softening, it is cut into uniform filaments with a width of 2.5 mm. Dried at 50℃ for 12h, the moisture is reduced to 12.1%.

[0054] After processing, the broken powder is removed with an 8-mesh (2.36 mm) sieve, and the complete filaments are retained, with an 8-mesh sieve retention rate of about 83%. The processed product of Example 1 is sieved with an 8-mesh sieve, with an 8-mesh sieve retention rate of about 96%.

[0055] The Zanthoxylum bungeanum peel filaments obtained in the above 7 examples and comparative examples are used to determine the contents of hesperidin, nobiletin, tangeritin, limonene, and polysaccharide.

[0056] 1. Hesperidin, nobiletin, and tangeritin content determination:

[0057] About 0.2 g of the peel filament powder (passed through a No. 2 sieve) is precisely weighed and placed in a conical flask with a stopper. 25 ml of methanol is precisely added, tightly sealed, and weighed. Ultrasonic treatment (power 300 W, frequency 40 kHz) is performed for 45 minutes, and then the flask is cooled and weighed again. The lost weight is made up with methanol, shaken well, filtered, and the filtrate is filtered through a 0.45 μm microporous filter. The filtrate is used as the test solution, and the contents of hesperidin, nobiletin, and tangeritin are calculated (g / g%).

[0058] Octadecylsilane-bonded silica gel is used as the filler; the flow rate is 1.0 mL / min; the column temperature is 25℃; the injection volume is 5 μL; the detection wavelength is 283 nm (hesperidin, nobiletin) and 330 nm (tangeritin); acetonitrile is used as the mobile phase A and water is used as the mobile phase B, and gradient elution is performed according to the specifications in Table 1 to determine the related contents.

[0059] Table 1: Gradient elution program

[0060] ;

[0061] 2. Limonene content determination

[0062] (1) Extraction head: polydimethylsiloxane (PDMS, 100 μm); (2) Extraction of limonene in orange peel silk using saturated NaCl solution (0.3 g / mL), extraction temperature 60°C, 40 min; (3) Headspace solid-phase microextraction-gas chromatography (HS-SPME-GC) determination.

[0063] 3. Determination of polysaccharide content

[0064] (1) Orange peel silk was crushed and hot water was used for extraction, and ethanol was used for polysaccharide precipitation; (2) A glucose standard (0-100 μg / mL) was used to draw a curve; (3) Polysaccharide sample + 5% phenol solution + concentrated sulfuric acid → boiling water bath for 15 min → cooling and then measuring OD 490nm The polysaccharide value was obtained by using the standard curve, and the polysaccharide content was calculated.

[0065] The determination results of the above are as follows (n=10):

[0066] ;

[0067] Note: Compared with Example 1, * indicates P<0.05, ** indicates P<0.01, *** indicates P<0.001, and **** indicates P<0.0001.

[0068] The RSD of the content of nobiletin in the dried tangerine or mandarin peel silk prepared in the above examples and comparative examples is all ≤4.5%, indicating that the consistency and stability of the dried tangerine or mandarin peel silk prepared in each example are good, which helps to improve the stability of the dosage and the stability of the curative effect of the downstream medicine, medicinal formula and medicine.

[0069] The moisture content of the dried tangerine or mandarin peel silk prepared in the above examples is all <12.5%; 1000 g contains not more than 5 μg of aflatoxin B1, not more than 10 μg of the total amount of aflatoxin G2, aflatoxin G1, aflatoxin B2 and aflatoxin B1. It meets the requirements of the fourth method of Chinese Pharmacopoeia 0832 for dried tangerine or mandarin peel silk.

[0070] As can be seen by comparing Example 1 with Comparative Example 1, the contents of hesperidin, nobiletin, tangeretin, limonene and polysaccharide in the dried tangerine or mandarin peel silk are all reduced by using a high-pressure water gun for washing, which may be related to the destruction of the cystic structure of fresh dried tangerine or mandarin peel under the high-pressure water gun. The cystic structure includes oil cells and liquid cells, the former mainly contains oily components, and the latter mainly contains flavones and polysaccharides. After the cystic structure is destroyed, part of the volatile oil and polysaccharides are lost.

[0071] It can be seen from the comparison of Example 1 and Comparative Examples 2-3 that the drying process after peeling and the drying process after shredding both affect the content of effective components in the dried tangerine or orange peel, and the gradient temperature drying or the high-low temperature periodic alternating drying is also beneficial to reducing the moisture content in the dried tangerine or orange peel to the required content within a shorter time and greatly retaining the active components of the dried tangerine or orange peel.

[0072] It can be seen from the comparison of Example 1 and Comparative Example 4 that, compared with the method for processing the dried tangerine or orange peel according to the Chinese Pharmacopoeia, the effective component content in the dried tangerine or orange peel prepared by Example 1 is high, which can more effectively enhance the intestinal motility and show good effects on regulating qi, and the effect of the dried tangerine or orange peel prepared by Example 1 in medicine is better. Meanwhile, if the water mist of 0.1% w / w microcrystalline cellulose is sprayed in the shredding process, the adhesion of the freshly shredded dried tangerine or orange peel can be reduced, the yield of the intact dried tangerine or orange peel can be increased, and the shape damage and polysaccharide loss caused by the adhesion between the dried tangerine or orange peel or between the cut surfaces of the dried tangerine or orange peel and the drying equipment can be reduced.

[0073] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part or all of the technical features; and these modifications or replacements, or the combination of the technical features in the above examples without mutual conflict, can be combined in the manner recorded in the examples, and these modifications, replacements or combinations do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A processing method for freshly slicing authentic medicinal herb, camphor-root red tangerine peel, characterized in that: Includes the following steps: S1. Take fresh camphor red fruit from authentic medicinal materials, wash, and air-dry or blow-dry; the washing in step S1 uses micro-nano air bubble water at a temperature of 25±2℃ and pH 6.2-6.8 combined with low-frequency ultrasound at 40kHz for 3-5 minutes; after washing, centrifuge at 300-500rpm to dehydrate, and use a purified air stream at room temperature to blow-dry the surface moisture of the fresh camphor red fruit to 8-10%; S2. The outer pericarp is peeled off using a three-flower method. The outer pericarp is then placed in an oven at 40-52℃ and dried. The outer pericarp is then removed. In step S2, the method for drying the outer pericarp is as follows: it is dried in an oven at 40℃, 45℃, and 50℃ for 20-25 minutes each. S3. Cut the outer pericarp into thin strips with a width of 2.5±0.2mm, and then dry them in an oven at 40-52℃. Spray water mist with 0.1%w / w microcrystalline cellulose during the cutting process. After drying, fresh-cut authentic medicinal material camphor red tangerine peel strips are obtained. The drying process employs pulse drying, alternating between 50℃ and 42℃ at a frequency of 15 min and 5 min, for 3-5 hours. Near-infrared online detection is used, and the final moisture content is controlled at 12±0.5%.

2. The processing method for freshly slicing authentic medicinal herb, camphor red tangerine peel, according to claim 1, is characterized in that: Step S1 includes grading the ripeness of the authentic medicinal herb, camphor red fruit, according to the coloring area ratio: a coloring area ratio ≥90% is grade 1, a coloring area ratio <90% but ≥80% is grade 2, and a coloring area ratio <80% is grade 3; and camphor red fruit of the same grade are processed in the same batch.

3. The processing method for freshly slicing authentic medicinal herb, camphor red tangerine peel, according to claim 1, is characterized in that: In steps S2 and S3, the oven is a low-oxygen drying oven, in which the oxygen content is controlled at 8-12% v / v.

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