A method for preparing Dendrobium officinale pulp while fresh

Abstract

This invention discloses a method for preparing Dendrobium officinale pulp while fresh, belonging to the field of health food development technology. The steps of preparing Dendrobium officinale pulp while fresh include: mixing crushed fresh Dendrobium officinale stems with an extract and pulping, then gelatinizing and filtering; the filtrate is the Dendrobium officinale pulp. The extract is an aqueous solution containing amino acids and citric acid. This invention improves the yield of effective components in Dendrobium officinale by using an aqueous solution containing amino acids and citric acid as the extract and using fresh Dendrobium officinale stems to prepare the pulp. No preservatives or stabilizers are added during the process, resulting in naturally pure components. The pulp has good antioxidant properties, stable properties, and a sweet taste.

Description

Technical Field

[0001] This invention belongs to the field of health food development technology, specifically relating to a method for preparing Dendrobium officinale pulp while it is fresh. Background Technology

[0002] Dendrobium officinale, an orchidaceous herb, is a traditional and precious Chinese medicinal herb, first recorded in the *Shennong Bencao Jing* (Shennong's Classic of Materia Medica), and hailed as the first of the "Nine Immortal Herbs of China." It boasts high safety and possesses antioxidant, anti-tumor, blood pressure-lowering, blood sugar-lowering, anti-inflammatory, skin-beautifying, and hair-growth-promoting effects, making it widely used in health products, food, and cosmetics. The main active ingredient of Dendrobium officinale is polysaccharide, and the stem is generally used medicinally. Chinese patent document CN103300450A discloses a method for preparing Dendrobium officinale pulp, which mainly involves drying the Dendrobium officinale, crushing it, repeatedly adding water to make a pulp, filtering and combining the filtrates multiple times, and also requiring enzymatic hydrolysis; the preparation process is complex. The traditional method of processing Dendrobium officinale involves turning fresh Dendrobium officinale stems into "Fengdou," which is less prone to mold, insect infestation, and easy to preserve. After processing, the mucilage of Dendrobium officinale is solidified and stabilized, making the effective components less prone to decomposition. However, the traditional process of making Fengdou is complex and labor-intensive. If the method is not appropriate, it is easier to lose raw materials by producing "dead grass." Furthermore, previous studies have found that using hot air to dry Dendrobium officinale causes the Dendrobium officinale to respire during the drying process, consuming its own sugars and resulting in low polysaccharide retention. Summary of the Invention

[0003] The purpose of this invention is to provide a method for preparing Dendrobium officinale pulp while it is still fresh. By mixing fresh Dendrobium officinale stems with a specific extract and then pulping the mixture, followed by filtration, a Dendrobium officinale pulp with a high content of active ingredients can be prepared. The preparation method provided by this invention is simple, and the resulting Dendrobium officinale pulp can be used as a health food, helping to combat oxidation and maintain healthy blood sugar levels.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] One of the technical solutions of this invention is to provide a method for preparing Dendrobium officinale pulp while it is still fresh, comprising the following steps:

[0006] The crushed fresh Dendrobium officinale stems are mixed with the extract and pulped, then gelatinized and filtered. The filtrate is Dendrobium officinale pulp.

[0007] The extract is an aqueous solution containing amino acids and citric acid.

[0008] The extract selected in this invention contains amino acids and citric acid. The combination of amino acids and citric acid in the extract can reduce the difficulty of dissolving the active ingredients in Dendrobium officinale, making the active ingredients in Dendrobium officinale dissolve more thoroughly.

[0009] Preferably, the particle size of the crushed fresh Dendrobium officinale stems does not exceed 5 mm.

[0010] Preferably, the mass ratio of the fresh Dendrobium officinale stems to the extract is 1:5 to 10.

[0011] Preferably, the amino acid content in the extract is 5-10 g / L, and the mass ratio of amino acids to citric acid is 1:0.7-1.

[0012] Preferably, the amino acid is lysine.

[0013] Using alkaline lysine can further improve the extraction rate of active ingredients in Dendrobium officinale.

[0014] Preferably, the gelatinization temperature is 80–90°C and the time is 40–60 min.

[0015] The second technical solution of the present invention provides a Dendrobium officinale pulp prepared according to the above-mentioned method for preparing Dendrobium officinale pulp while fresh.

[0016] The third technical solution of this invention provides a method for preparing Dendrobium officinale pulp, comprising the following steps:

[0017] The above-mentioned Dendrobium officinale pulp was subjected to degassing, homogenization, sterilization, canning, inner packaging sterilization, and outer packaging in sequence to obtain the Dendrobium officinale pulp product.

[0018] The fourth technical solution of the present invention provides a Dendrobium officinale pulp product prepared according to the above-mentioned method for preparing Dendrobium officinale pulp product.

[0019] The beneficial technical effects of the present invention are as follows:

[0020] This invention improves the yield of effective components in Dendrobium officinale by using an aqueous solution containing amino acids and citric acid as the extraction liquid and preparing Dendrobium officinale pulp from fresh Dendrobium officinale stems while they are still fresh. No preservatives or stabilizers are added during the process, resulting in naturally pure components. The pulp exhibits good antioxidant properties, stable characteristics, and a sweet taste. Further processing creates Dendrobium officinale pulp products that consumers can directly drink. Compared to using dried Dendrobium officinale or Dendrobium twigs for soups or teas, this allows for more comprehensive absorption of the nutritional essence of Dendrobium officinale. Compared to directly chewing fresh Dendrobium officinale stems, directly drinking the pulp is a more convenient way to obtain it, is not seasonal, and eliminates the hassle of spitting out residue after chewing. Detailed Implementation

[0021] Various exemplary embodiments of the present invention will now be described in detail. This detailed description should not be considered as a limitation of the present invention, but rather as a more detailed description of certain aspects, features, and embodiments of the present invention. It should be understood that the terminology used in this invention is merely for describing particular embodiments and is not intended to limit the present invention.

[0022] Furthermore, regarding the numerical ranges in this invention, it should be understood that each intermediate value between the upper and lower limits of the range is also specifically disclosed. Any stated value or intermediate value within a stated range, as well as each smaller range between any other stated value or intermediate value within said range, are also included in this invention. The upper and lower limits of these smaller ranges may be independently included or excluded from the range.

[0023] Unless otherwise stated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. While only preferred methods and materials have been described herein, any methods and materials similar to or equivalent to those described herein may be used in the implementation or testing of this invention.

[0024] The terms “include,” “including,” “have,” “contain,” etc., used in this article are all open-ended terms, meaning that they include but are not limited to.

[0025] This invention provides a mature method for preparing Dendrobium officinale pulp products, the steps of which are as follows:

[0026] 1. Use Dendrobium officinale stems as raw material. Before crushing the raw material, sort out the Dendrobium officinale stems, cut off the moldy cross-sections, withered parts and residual flower stalks, soak and wash them with clean water, and introduce ozone for more than half an hour to degrade harmful substances and preserve the fresh stems.

[0027] The harvesting time for Dendrobium officinale stems is from early March to mid-April each year. Do not water for at least three days before harvesting. After the stems have shed their leaves, dry them in the shade for 7 to 20 days before placing them in a cold storage with a temperature range of 3℃ to 8℃. Dendrobium officinale stems harvested under these conditions can produce raw materials with the best viscosity and can be stored until early March of the following year.

[0028] 2. Crushing: The fresh Dendrobium stems are crushed using a multi-set sharp rotating blade crusher, and the process is repeated multiple times to produce Dendrobium residue with a particle size of less than 5mm.

[0029] 3. Add water and grind: Use a single-circulation stainless steel colloid mill. First, add 5 to 10 times the weight of Dendrobium officinale residue with warm extract (40 to 60°C, the extract is an aqueous solution containing amino acids and citric acid). Turn on the colloid mill and add Dendrobium officinale residue to the mill in several batches, constantly breaking it up. Continue for about 1 to 5 minutes until the temperature of the original pulp in the hopper rises to 80°C to 90°C. Maintain this temperature for 40 to 60 minutes to completely gelatinize the Dendrobium officinale. Then, discharge it into the receiving tank for temporary storage.

[0030] 4. Centrifugal filtration: Use a rotor pump or a slurry pump to draw the raw slurry from the receiving tank into a flat plate centrifuge. The filter bag density should be above 100 mesh. The centrifugation time is generally 5 to 10 minutes. Depending on the filtration results, decide whether to add more material or replace the filter bag. The filtrate is Dendrobium officinale raw slurry.

[0031] 5. Stirring and mixing: Add or omit food additives to the filtered raw pulp as needed, and stir continuously for more than 5 minutes.

[0032] 6. Deaeration: The prepared pulp is deaerated by a deaerator to remove air from the pulp.

[0033] 7. Homogenization: The degassed pulp is sucked into a homogenizer and homogenized using a pressure of 10 MPa or higher according to the machine's parameters.

[0034] 8. Ultra-high temperature instantaneous sterilization: According to the requirements (starting from the time of crushing, sterilization of raw pulp production can be completed within 8 hours, which can be skipped), the homogenized raw pulp is subjected to ultra-high temperature instantaneous sterilization at 135℃ for 6-10 seconds, and then temporarily stored in a sterile tank for later use.

[0035] 9. Filling: Fill the raw pulp with filling equipment of different specifications according to the requirements.

[0036] 10. Sterilize the filled pulp at 121℃ in a sterilizer. Set the sterilization time for pulp packages under 100g to 20-25 minutes, for packages under 100g to 150g to 26-30 minutes, and for packages over 150g to 30 minutes or more.

[0037] 11. The sterilized inner packaging is then wrapped as needed to obtain the Dendrobium officinale pulp product.

[0038] To demonstrate that the extract used in the production process of this invention affects the yield of effective components in Dendrobium officinale pulp, the following experiment was conducted.

[0039] The L-aspartic acid, L-serine, L-lysine, and citric acid used in the embodiments and comparative examples of this invention are all commercially available raw materials.

[0040] The Dendrobium officinale stems used in the embodiments and comparative examples of this invention are one-year-old Dendrobium officinale stems from the same batch harvested in early March, originating from Yunnan. After harvesting, they were sorted, and moldy sections, withered parts and residual flower stalks were cut off.

[0041] Example 1

[0042] Preparation of Dendrobium officinale pulp:

[0043] (1) Soak and wash the Dendrobium officinale stems in clean water, then pass ozone through them for more than half an hour to degrade harmful substances, drain the water, and obtain fresh Dendrobium officinale stems;

[0044] (2) Use a multi-set sharp rotating blade pulverizer to crush the fresh Dendrobium stems into Dendrobium residue with a particle size of less than 5mm, and set aside for use;

[0045] (3) Take 5g of L-lysine and add it to 1L of water, then add 5g of citric acid, stir to dissolve and use as the extraction solution;

[0046] (4) Using a single-circulation stainless steel colloid mill, first transfer the extract to the hopper, preheat to 50°C, turn on the colloid mill, then add 100g of Dendrobium officinale residue into the colloid mill in 3 batches and continuously break it up. After the addition is completed, grind for 5 minutes, then raise the temperature of the original pulp in the hopper to 90°C and keep it for 60 minutes to make Dendrobium officinale completely gelatinized, and then discharge it into the receiving tank for temporary storage.

[0047] (5) Use a thickening pump to draw the raw pulp from the receiving tank into a flat plate centrifuge. The filter bag density is 100 mesh. Centrifuge for 10 minutes, and the filtrate is the raw pulp of Dendrobium officinale.

[0048] Example 2

[0049] Preparation of Dendrobium officinale extract (the extract was adjusted compared to Example 1):

[0050] (1) Soak and wash the Dendrobium officinale stems in clean water, then pass ozone through them for more than half an hour to degrade harmful substances, drain the water, and obtain fresh Dendrobium officinale stems;

[0051] (2) Use a multi-set sharp rotating blade pulverizer to crush the fresh Dendrobium stems into Dendrobium residue with a particle size of less than 5mm, and set aside for use;

[0052] (3) Take 5g of L-serine and add it to 1L of water, then add 5g of citric acid, stir to dissolve and use as the extraction solution;

[0053] (4) Using a single-circulation stainless steel colloid mill, first transfer the extract to the hopper, preheat to 50°C, turn on the colloid mill, then add 100g of Dendrobium officinale residue into the colloid mill in 3 batches and continuously break it up. After the addition is completed, grind for 5 minutes, then raise the temperature of the original pulp in the hopper to 90°C and keep it for 60 minutes to make Dendrobium officinale completely gelatinized, and then discharge it into the receiving tank for temporary storage.

[0054] (5) Use a thickening pump to draw the raw pulp from the receiving tank into a flat plate centrifuge. The filter bag density is 100 mesh. Centrifuge for 10 minutes, and the filtrate is the raw pulp of Dendrobium officinale.

[0055] Example 3

[0056] Preparation of Dendrobium officinale extract (the extract was adjusted compared to Example 1):

[0057] (1) Soak and wash the Dendrobium officinale stems in clean water, then pass ozone through them for more than half an hour to degrade harmful substances, drain the water, and obtain fresh Dendrobium officinale stems;

[0058] (2) Use a multi-set sharp rotating blade pulverizer to crush the fresh Dendrobium stems into Dendrobium residue with a particle size of less than 5mm, and set aside for use;

[0059] (3) Take 5g of L-aspartic acid and add it to 1L of water, then add 5g of citric acid, stir to dissolve and use as the extraction solution;

[0060] (4) Using a single-circulation stainless steel colloid mill, first transfer the extract to the hopper, preheat to 50°C, turn on the colloid mill, then add 100g of Dendrobium officinale residue into the colloid mill in 3 batches and continuously break it up. After the addition is completed, grind for 5 minutes, then raise the temperature of the original pulp in the hopper to 90°C and keep it for 60 minutes to make Dendrobium officinale completely gelatinized, and then discharge it into the receiving tank for temporary storage.

[0061] (5) Use a thickening pump to draw the raw pulp from the receiving tank into a flat plate centrifuge. The filter bag density is 100 mesh. Centrifuge for 10 minutes, and the filtrate is the raw pulp of Dendrobium officinale.

[0062] Comparative Example 1

[0063] Preparation of Dendrobium officinale extract (the extract was adjusted compared to Example 1):

[0064] (1) Soak and wash the Dendrobium officinale stems in clean water, then pass ozone through them for more than half an hour to degrade harmful substances, drain the water, and obtain fresh Dendrobium officinale stems;

[0065] (2) Use a multi-set sharp rotating blade pulverizer to crush the fresh Dendrobium stems into Dendrobium residue with a particle size of less than 5mm, and set aside for use;

[0066] (3) Take 5g of L-lysine and add it to 1L of water. Stir to dissolve and use it as the extraction solution.

[0067] (4) Using a single-circulation stainless steel colloid mill, first transfer the extract to the hopper, preheat to 50°C, turn on the colloid mill, then add 100g of Dendrobium officinale residue into the colloid mill in 3 batches and continuously break it up. After the addition is completed, grind for 5 minutes, then raise the temperature of the original pulp in the hopper to 90°C and keep it for 60 minutes to make Dendrobium officinale completely gelatinized, and then discharge it into the receiving tank for temporary storage.

[0068] (5) Use a thickening pump to draw the raw pulp from the receiving tank into a flat plate centrifuge. The filter bag density is 100 mesh. Centrifuge for 10 minutes, and the filtrate is the raw pulp of Dendrobium officinale.

[0069] Comparative Example 2

[0070] Preparation of Dendrobium officinale extract (the extract was adjusted compared to Example 1):

[0071] (1) Soak and wash the Dendrobium officinale stems in clean water, then pass ozone through them for more than half an hour to degrade harmful substances, drain the water, and obtain fresh Dendrobium officinale stems;

[0072] (2) Use a multi-set sharp rotating blade pulverizer to crush the fresh Dendrobium stems into Dendrobium residue with a particle size of less than 5mm, and set aside for use;

[0073] (3) Take 5g of citric acid and add it to 1L of water. Stir to dissolve and use it as the extraction solution.

[0074] (4) Using a single-circulation stainless steel colloid mill, first transfer the extract to the hopper, preheat to 50°C, turn on the colloid mill, then add 100g of Dendrobium officinale residue into the colloid mill in 3 batches and continuously break it up. After the addition is completed, grind for 5 minutes, then raise the temperature of the original pulp in the hopper to 90°C and keep it for 60 minutes to make Dendrobium officinale completely gelatinized, and then discharge it into the receiving tank for temporary storage.

[0075] (5) Use a thickening pump to draw the raw pulp from the receiving tank into a flat plate centrifuge. The filter bag density is 100 mesh. Centrifuge for 10 minutes, and the filtrate is the raw pulp of Dendrobium officinale.

[0076] Comparative Example 3

[0077] Preparation of Dendrobium officinale extract (the extract was adjusted compared to Example 1):

[0078] (1) Soak and wash the Dendrobium officinale stems in clean water, then pass ozone through them for more than half an hour to degrade harmful substances, drain the water, and obtain fresh Dendrobium officinale stems;

[0079] (2) Use a multi-set sharp rotating blade pulverizer to crush the fresh Dendrobium stems into Dendrobium residue with a particle size of less than 5mm, and set aside for use;

[0080] (4) Use a single-circulation stainless steel colloid mill, add 1L of water to the hopper, preheat to 50℃, turn on the colloid mill, then add 100g of Dendrobium officinale residue to the colloid mill in 3 batches and continuously break it up. After the addition is completed, grind for 5 minutes, then raise the temperature of the original pulp in the hopper to 90℃ and keep it for 60 minutes to make the Dendrobium officinale completely gelatinized, and then discharge it into the receiving tank for temporary storage.

[0081] (5) Use a thickening pump to draw the raw pulp from the receiving tank into a flat plate centrifuge. The filter bag density is 100 mesh. Centrifuge for 10 minutes, and the filtrate is the raw pulp of Dendrobium officinale.

[0082] The antioxidant activity of the Dendrobium officinale pulp prepared in Example 1 and Comparative Examples 1-5 was determined:

[0083] DPPH free radical (DPPH·) scavenging capacity determination: 0.2 mL of Dendrobium officinale pulp was mixed with 0.5 mmol·L⁻¹ of DPPH·L⁻¹ free radical scavenging capacity. -1 Mix 3.5 mL of DPPH solution thoroughly and let stand at room temperature in the dark for 30 min; zero the instrument with anhydrous ethanol and measure the absorbance at 517 nm, denoted as A. 测定 Distilled water is used as a substitute for the extract, denoted as A. 空白 Anhydrous ethanol replaces DPPH, denoted as A. 对照 The DPPH clearance rate was calculated according to formula (3), and the average value was taken from three parallel experiments.

[0084] Hydroxyl radical (·OH) scavenging capacity determination: 0.2 mL of Dendrobium officinale pulp was added with 6 mmol·L⁻¹ -1 1 mL of ferrous sulfate, 6 mmol·L -1 2 mL of hydrogen peroxide, 6 mmol·L⁻¹ -1 Mix 1 mL of salicylic acid, place in a 37°C water bath for 30 min; zero the apparatus with distilled water, and measure the absorbance at 510 nm, denoted as A. 测定 Distilled water is used as a substitute for the extract, denoted as A. 空白 Distilled water replacing hydrogen peroxide is denoted as A. 对照 The OH scavenging rate was calculated according to formula (1), and the average value was obtained from three parallel experiments.

[0085] ABTS + Free radicals (ABTS) + • Scavenging ability determination: The ABTS working solution was diluted with PBS solution to obtain an absorbance of 0.70±0.02 at 734 nm, and equilibrated at 30℃ for 30 min to obtain ABTS. + Solution; 0.2 mL of Dendrobium officinale pulp mixed with ABTS+ Mix 3.5 mL of the solution thoroughly and let it stand at room temperature in the dark for 6 min; measure the absorbance at 734 nm and record it as A. 测定 Distilled water is used as a substitute for the extract, denoted as A. 空白 Distilled water as a substitute for ABTS + The solution is denoted as A. 对照 ; Calculate ABTS according to formula (1) + • Clearance rate: The average value of three parallel experiments was taken.

[0086] Clearance rate (%) = [A 空白 -(A 测定 -A 对照 )] / A 空白 ×100%(1)

[0087] The DPPH·, ·OH and ABTS of Dendrobium officinale pulp prepared in Examples 1-3 and Comparative Examples 1-3 were determined. + • The clearance capacity is shown in Table 1.

[0088] Table 1 Antioxidant Activity

[0089] DPPH clearance rate (%) OH removal rate (%) <![CDATA[ABTS + • Clearance rate (%) Example 1 43.6 95.6 99.2 Example 2 36.3 88.6 90.1 Example 3 32.7 82.3 85.9 Comparative Example 1 21.7 68.9 72.2 Comparative Example 2 22.0 69.6 72.5 Comparative Example 3 20.1 67.3 70.9

[0090] Table 1 shows that using an aqueous solution containing both amino acids and citric acid as the extraction solvent to prepare Dendrobium officinale extract yields a higher extraction rate of antioxidant active substances than using water as the extraction solvent. Adding amino acids or citric acid alone has little effect on the extraction rate of antioxidant active substances. Among various amino acids, the combination of basic amino acid (L-lysine) and citric acid yields the best extraction effect, followed by neutral amino acid (L-serine) and citric acid, while acidic amino acid (L-aspartic acid) yields the worst.

[0091] The hypoglycemic effects of Dendrobium officinale extract prepared in Examples 1-3 and Comparative Examples 1-3 were compared:

[0092] Experimental animals: 48 C57BL / 6 mice;

[0093] Experimental methods: Thirty C57BL / 6 mice were divided into 8 groups of 6 mice each: normal diet group, high-fat diet group, Examples 1-3 groups, and Comparative Examples 1-3 groups. The normal diet group was fed a basal diet, the high-fat diet group was fed a high-fat diet, and Examples 1-3 and Comparative Examples 1-3 groups were fed a high-fat diet and were administered a gavage once a day (the gavage consisted of Dendrobium officinale extract prepared by each group at a dose of 100 mL / kg). The blood glucose levels of the mice in each group were measured at weeks 0, 3, 6, 9, and 12. The results are shown in Table 1.

[0094] The basic feed composition (by weight percentage) is as follows: corn flour 26.0%, wheat flour 29.0%, soybean meal 28.0%, dicalcium phosphate 1.4%, limestone powder 1.6%, fish meal 5.0%, bone meal 5.0%, salt 1.0%, compound vitamins 1.5%, and compound trace elements 1.5%.

[0095] The high-fat feed formulation (by weight percentage) is as follows: 10.0% lard, 2.0% cholesterol, 20.0% sucrose, 5.0% egg yolk powder, 0.2% bile salts, 0.2% methylthiouracil, and 62.6% basal feed.

[0096] Table 2 Blood Glucose Lowering Capacity

[0097]

[0098]

[0099] Table 2 shows that using an aqueous solution containing both amino acids and citric acid as the extraction solvent to prepare Dendrobium officinale extract resulted in a higher extraction rate of hypoglycemic active substances than using water as the extraction solvent. Adding amino acids or citric acid alone had little effect on the extraction rate of hypoglycemic active substances. Among various amino acids, the combination of basic amino acid (L-lysine) and citric acid yielded the best extraction effect, followed by neutral amino acid (L-serine) and citric acid, while acidic amino acid (L-aspartic acid) yielded the worst.

[0100] The embodiments described above are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by persons skilled in the art should fall within the scope of protection defined by the claims of the present invention.

Claims

1. A method for preparing Dendrobium officinale pulp while fresh, characterized in that, Includes the following steps: (1) Soak and wash the Dendrobium officinale stems in clean water, then pass ozone through them for more than half an hour to degrade harmful substances, drain the water, and obtain fresh Dendrobium officinale stems; (2) Use a multi-set sharp rotating blade pulverizer to crush the fresh Dendrobium stems into Dendrobium residue with a particle size of less than 5mm, and set it aside for use; (3) Take 5g of L-lysine and add it to 1L of water, then add 5g of citric acid, stir to dissolve and use as the extraction solution; (4) Use a single-circulation stainless steel colloid mill. First, transfer the extract to the hopper, preheat it to 50°C, turn on the colloid mill, and then add 100g of Dendrobium officinale residue into the colloid mill in three batches and keep breaking it up. After the addition is complete, grind for 5 minutes, then raise the temperature of the original pulp in the hopper to 90°C and keep it for 60 minutes to make the Dendrobium officinale completely gelatinized. Then discharge it into the receiving tank for temporary storage. (5) Use a thick slurry pump to suck the raw slurry from the receiving tank into a flat plate centrifuge. The filter bag density is 100 mesh. Centrifuge for 10 minutes, and the filtrate is the raw slurry of Dendrobium officinale.

2. Dendrobium officinale pulp prepared by the method for preparing fresh Dendrobium officinale pulp according to claim 1.

3. A method for preparing Dendrobium officinale pulp product, characterized in that, Includes the following steps: The Dendrobium officinale pulp described in claim 2 is subjected to degassing, homogenization, sterilization, canning, inner packaging sterilization, and outer packaging in sequence to obtain the Dendrobium officinale pulp product.

4. A Dendrobium officinale pulp product prepared by the method described in claim 3.

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