Preparation method of health-preserving electuary containing rhizoma polygonati and cyperus esculentus components
By combining soaking and steaming with rice wine with ultrasonic extraction and compound enzymatic hydrolysis, the problems of bitter taste, low dissolution rate and low extraction efficiency of Polygonatum and Sophora flavescens in traditional preparation were solved. A fragrant and easily soluble health-preserving powder was prepared, realizing the synergistic effect and high-efficiency extraction of Polygonatum and Sophora flavescens.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHANGHAI BAICAO TRADITIONAL CHINESE MEDICINE & AGRICULTURE RESEARCH INSTITUTE
- Filing Date
- 2026-03-24
- Publication Date
- 2026-04-21
AI Technical Summary
Traditional methods of processing and consuming Polygonatum are cumbersome, and its bitter taste makes it difficult for modern consumers to accept. The hard texture of Polygonatum odoratum limits the diversity of consumption scenarios. Simple physical mixing results in poor taste, low dissolution rate of active ingredients, and poor reconstitution properties. Existing processes are not efficient in extracting active ingredients, thus diminishing the health benefits of the product.
The processing method of soaking and steaming with rice wine is used to process Polygonatum sibiricum. Combined with ultrasonic extraction and compound enzymatic hydrolysis, the active ingredients of Polygonatum sibiricum and soybean are extracted separately. The active ingredients are then prepared into granules by spray drying, which improves the dissolution rate of the active ingredients and the taste.
The combination of the qi-tonifying and yin-nourishing effects of Polygonatum and the qi-regulating and blood-activating effects of Sophora flavescens results in a product with a mellow and easily accepted taste, improved dissolution rate of active ingredients, good mixing properties, and suitability for conditioning the sub-healthy state of modern people, thus enhancing its nutritional value.
Smart Images
Figure CN121890750A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of food processing technology, specifically to a method for preparing a health-preserving powder containing Polygonatum sibiricum and Sophora flavescens. Background Technology
[0002] Polygonatum rhizome, the dried rhizome of a plant in the genus Polygonatum of the Liliaceae family, is a traditional food and medicine. It is neutral in nature and sweet in taste, and enters the spleen, lung, and kidney meridians. It has the effects of tonifying qi and nourishing yin, strengthening the spleen, moistening the lungs, and benefiting the kidneys. It is often used to treat symptoms such as spleen and stomach qi deficiency, fatigue, stomach yin deficiency, dry mouth and poor appetite, lung deficiency and dry cough, insufficient essence and blood, and soreness and weakness of the lower back and knees. Modern research shows that Polygonatum rhizome is rich in polysaccharides, saponins, flavonoids, and other active ingredients, and has various health benefits such as enhancing immunity, anti-fatigue, anti-aging, and regulating blood sugar and lipids.
[0003] Tiger nuts, also known as sedge or tiger mussels, are the tubers of plants belonging to the genus *Sedge* in the family Cyperaceae. They are rich in nutrients, containing abundant oils (mainly composed of unsaturated fatty acids), starch, dietary fiber, protein, vitamin E, and various minerals. Tiger nuts are believed to have spleen-strengthening, stomach-soothing, blood-circulating, and bowel-regulating effects, thus improving indigestion and constipation. Their unique sweet flavor also makes them popular in food development.
[0004] However, traditional methods of processing and consuming Polygonatum are cumbersome, and its bitter taste makes it difficult for modern consumers to accept. While soybeans can be eaten directly, their hard texture limits the versatility of their use. Although there are reports of combining the two to prepare a powder, most methods suffer from poor taste, low dissolution rate of active ingredients, and poor dissolving properties. For example, simple physical mixing cannot fully utilize the synergistic effects of the two and is insufficient to mask the unpleasant odor of Polygonatum. Furthermore, existing processes have low extraction efficiency of active ingredients, resulting in a reduction in the product's health benefits. Therefore, this paper proposes a method for preparing a health-promoting powder containing Polygonatum and soybeans. Summary of the Invention
[0005] The purpose of this invention is to provide a method for preparing a health-promoting powder containing Polygonatum sibiricum and Sophora flavescens, addressing the aforementioned issues in the background art where traditional methods of processing and consuming Polygonatum sibiricum are cumbersome and have a bitter taste, making them unacceptable to modern consumers. While Sophora flavescens can be eaten directly, its hard texture limits the versatility of its consumption. Although there are reports of combining the two to prepare a powder, most methods suffer from poor taste, low dissolution rate of active ingredients, and poor dissolving properties. For example, simple physical mixing cannot fully utilize the synergistic effects of the two ingredients and is insufficient to mask the unpleasant odor of Polygonatum sibiricum. Furthermore, existing processes have low extraction efficiency of active ingredients, resulting in a reduction in the product's health benefits.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a method for preparing a health-preserving powder containing Polygonatum sibiricum and Sophora flavescens, comprising the following steps:
[0007] Step 1: Raw material pretreatment. Select Polygonatum tubers and soybeans that are free from mold and insect infestation, wash them clean, remove impurities, slice the Polygonatum and crush the soybeans.
[0008] Step 2: Processing and extraction of Polygonatum sibiricum. The Polygonatum sibiricum slices obtained in Step 1 are moistened with rice wine. Then, the moistened Polygonatum sibiricum slices are placed in a steaming container and steamed at 100-110℃ for 1-3 hours. After steaming, they are removed and dried at 50-60℃ until the moisture content is less than 8%. They are then pulverized and passed through a 60-80 mesh sieve to obtain processed Polygonatum sibiricum powder. The processed Polygonatum sibiricum powder is mixed with water at a material-to-liquid ratio of 1:8-1:12 (g / mL). The mixture is then ultrasonically extracted at 60-80℃ for 30-60 minutes. After filtration, the extract is collected, and the residue is kept for later use.
[0009] Step 3: Enzymatic extraction of soybeans. Mix the crude soybean powder obtained in Step 1 with water at a material-to-liquid ratio of 1:5-1:10 (g / mL), adjust the pH to 5.0-6.0, add the compound enzyme preparation, and enzymatically hydrolyze at 45-55℃ for 1-2 hours. After the enzymatic hydrolysis is completed, raise the temperature to 90-100℃ to inactivate the enzyme for 10-15 minutes, then filter, collect the extract, and keep the filter residue for later use.
[0010] Step 4: Filter residue treatment and mixed extraction. Mix the filter residues obtained in Step 2 and Step 3, add 3-5 times the weight of water, reflux extract 1-2 times, 1 hour each time, filter, and combine the extracts.
[0011] Step 5: Concentration and drying. Combine the Polygonatum extract obtained in Step 2, the Sophora flavescens enzymatic hydrolysis extract obtained in Step 3, and the mixed extract obtained in Step 4. Concentrate under reduced pressure to an extract with a relative density of 1.10-1.15. Add 20-40% of the extract by weight of maltodextrin to the extract, mix well, and dry using spray drying method. Collect the dried powder.
[0012] Step 6, Granulation and Packaging: The dried powder obtained in Step 5 is granulated into granules using dry or wet granulation, sized, and packaged to obtain Polygonatum and Sophora flavescens health supplement.
[0013] Preferably, in step 1, the slices of Polygonatum are 3-5 mm thick, and the crushed soybeans are filtered through a 20-40 mesh sieve to obtain coarse soybean powder.
[0014] Preferably, in step 2, for every 100 parts by weight of Polygonatum slices, add 10-20 parts by weight of rice wine, mix well, seal and let it soak for 2-4 hours until the rice wine is fully absorbed.
[0015] Preferably, in step 2, the rice wine is a semi-dry rice wine, and the amount of water added is 15% of the weight of the Polygonatum slices.
[0016] Preferably, in step 3, the compound enzyme preparation is a mixture of cellulase, hemicellulase and amylase in a mass ratio of 2:1:1.
[0017] Preferably, in step 3, the amount of the compound enzyme preparation added is 0.5-1.5% of the weight of the soybean powder.
[0018] Preferably, in step 4, the reflux extraction temperature is 80-90℃.
[0019] Preferably, in step 5, the temperature for vacuum concentration is 50-65°C.
[0020] Preferably, in step 5, the inlet air temperature of the spray dryer is 160-180℃ and the outlet air temperature is 70-90℃.
[0021] Compared with the prior art, the present invention, employing the above technical solution, has the following technical effects:
[0022] 1. This invention, through a unique processing and extraction technique, organically combines the qi-tonifying, yin-nourishing, spleen-strengthening, and kidney-tonifying effects of Polygonatum odoratum with the qi-regulating, blood-activating, spleen-strengthening, and stomach-harmonizing effects of Sophora flavescens. The "tonifying" effect of Polygonatum odoratum and the "activating" effect of Sophora flavescens complement each other, tonifying without stagnation and activating without harm, together achieving a comprehensive health-preserving effect of regulating the spleen and stomach, replenishing qi and blood, and nourishing the internal organs. It is especially suitable for the sub-health state caused by modern people's irregular diet and overwork.
[0023] 2. This invention uses a method of soaking and steaming in rice wine to process Polygonatum sibiricum, which not only enhances its tonic effects but also effectively removes its numbing sensation, earthy taste, and astringency, making the flavor of Polygonatum sibiricum sweet and mellow. Simultaneously, after enzymatic hydrolysis, the unique sweet flavor of soybeans is fully released, blending with the flavor of the processed Polygonatum sibiricum, resulting in a final product with a mellow taste, natural sweetness, no unpleasant odor, and easy acceptance by consumers.
[0024] 3. This invention employs different extraction techniques tailored to the material characteristics of Polygonatum sibiricum and Sophora flavescens. After processing, Polygonatum sibiricum undergoes ultrasound-assisted extraction, which facilitates the dissolution of intracellular polysaccharides, saponins, and other active ingredients. Sophora flavescens, rich in starch and cellulose, is enzymatically hydrolyzed using a specific complex enzyme, effectively disrupting the cell wall structure and degrading large molecules into smaller ones. This not only improves the extraction rate of nutrients such as oils, proteins, and dietary fiber but also increases the content of soluble components in the extract, enhancing the product's solubility and nutritional value. Furthermore, a secondary extraction of the filter residue further improves the comprehensive utilization rate of the raw materials.
[0025] 4. The powder granules prepared by this invention through enzymatic hydrolysis and spray drying processes have excellent instant solubility, dissolving rapidly or dispersing evenly in water without clumping, making them convenient to prepare for drinking. Furthermore, the enzymatic hydrolysis process moderately degrades some macromolecular nutrients, making them more readily digestible and absorbable by the human body. Attached Figure Description
[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0027] Figure 1 This is a schematic diagram of the method flow of the present invention. Detailed Implementation
[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0029] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this application can produce, should still fall within the scope of the technical content disclosed in this application.
[0030] Example 1
[0031] Please see Figure 1 This invention provides a technical solution: a method for preparing a health-preserving powder containing Polygonatum sibiricum and Sophora flavescens, comprising the following steps:
[0032] Step 1: Raw material pretreatment. Select Polygonatum tubers and soybeans that are free from mold and insect infestation. Clean them thoroughly to remove impurities. Then slice the Polygonatum and crush the soybeans. The slices of Polygonatum should be 4mm thick. Filter the crushed soybeans through a 30-mesh sieve to obtain coarse soybean powder.
[0033] Step 2: Processing and Extraction of Polygonatum sibiricum. Take 1000g of Polygonatum sibiricum slices and add 150g of semi-dry rice wine for moistening. Specifically, for every 100 parts by weight of Polygonatum sibiricum slices, add 15 parts by weight of rice wine, mix well, seal and moisten for 3 hours until the rice wine is fully absorbed. Then, place the moistened Polygonatum sibiricum slices in a steaming container and steam at 105℃ for 2 hours. Remove and dry at 55℃ until the moisture content is below 8%. Crush and pass through an 80-mesh sieve to obtain processed Polygonatum sibiricum powder. Take 100g of processed Polygonatum sibiricum powder, add 1000mL of water, and extract ultrasonically at 70℃ for 45 minutes. Filter, collect the extract, and set aside the residue. The rice wine is semi-dry rice wine, and the amount of water added is 15% of the weight of the Polygonatum sibiricum slices.
[0034] Step 3: Enzymatic extraction of soybean powder. Take 100g of crude soybean powder, add 800mL of water, adjust the pH to 5.5, add 1g of compound enzyme preparation, and enzymatically hydrolyze at 50℃ for 1.5 hours. The compound enzyme preparation is a mixture of cellulase, hemicellulase, and amylase in a mass ratio of 2:1:1, and the amount of compound enzyme preparation added is 0.5-1.5% of the weight of crude soybean powder. After enzymatic hydrolysis, heat to 95℃ to inactivate the enzyme for 12 minutes, then filter, collect the extract, and reserve the filter residue.
[0035] Step 4: Filter residue treatment and mixed extraction. Mix the filter residues obtained in Step 2 and Step 3, add 400 mL of water, reflux extract at 85°C for 1 hour, filter, and combine the extracts.
[0036] Step 5: Concentration and drying. Combine the Polygonatum extract obtained in Step 2, the Sophora flavescens enzymatic hydrolysis extract obtained in Step 3, and the mixed extract obtained in Step 4. Concentrate under reduced pressure at 60°C to a paste with a relative density of 1.12 (measured at 50°C). Add 30% by weight of maltodextrin to the paste, mix well, and dry using spray drying. The inlet air temperature of the spray dryer is 170°C, and the outlet air temperature is 80°C. Collect the dried powder.
[0037] Step 6, Granulation and Packaging: The dried powder obtained in Step 5 is granulated into granules using a dry granulation method. After granulation, it is packaged into 10g bags to obtain Polygonatum and Sophora flavescens health supplement.
[0038] Example 2
[0039] Unlike Example 1, a method for preparing a health-preserving powder containing Polygonatum sibiricum and Sophora flavescens includes the following steps:
[0040] Step 1: Raw material pretreatment. Select Polygonatum tubers and soybeans that are free from mold and insect infestation. Clean them thoroughly to remove impurities. Then slice the Polygonatum and crush the soybeans. The slices of Polygonatum should be 4mm thick. Filter the crushed soybeans through a 30-mesh sieve to obtain coarse soybean powder.
[0041] Step 2: Processing and Extraction of Polygonatum sibiricum. Take 1000g of Polygonatum sibiricum slices and add 100g of semi-dry rice wine for moistening. Specifically, for every 100 parts by weight of Polygonatum sibiricum slices, add 15 parts by weight of rice wine, mix well, seal and moisten for 2 hours until the rice wine is fully absorbed. Then, place the moistened Polygonatum sibiricum slices in a steaming container and steam at 100℃ for 3 hours. Remove and dry at 55℃ until the moisture content is below 8%. Crush and pass through an 80-mesh sieve to obtain processed Polygonatum sibiricum powder. Take 100g of processed Polygonatum sibiricum powder, add 1000mL of water, and extract ultrasonically at 70℃ for 45 minutes. Filter, collect the extract, and set aside the residue. The rice wine is semi-dry rice wine, and the amount of water added is 15% of the weight of the Polygonatum sibiricum slices.
[0042] Step 3: Enzymatic extraction of soybean powder. Take 100g of crude soybean powder, add 800mL of water, adjust the pH to 5.5, add 0.8g of compound enzyme preparation, and enzymatically hydrolyze at 50℃ for 1.5 hours. The compound enzyme preparation is a mixture of cellulase, hemicellulase, and amylase in a mass ratio of 2:1:1, and the amount of compound enzyme preparation added is 0.5-1.5% of the weight of crude soybean powder. After enzymatic hydrolysis, heat to 95℃ to inactivate the enzyme for 12 minutes, then filter, collect the extract, and reserve the filter residue.
[0043] Step 4: Filter residue treatment and mixed extraction. Mix the filter residues obtained in Step 2 and Step 3, add 400 mL of water, reflux extract at 85°C for 1 hour, filter, and combine the extracts.
[0044] Step 5: Concentration and drying. Combine the Polygonatum extract obtained in Step 2, the Sophora flavescens enzymatic hydrolysis extract obtained in Step 3, and the mixed extract obtained in Step 4. Concentrate under reduced pressure at 60°C to a paste with a relative density of 1.12 (measured at 50°C). Add 30% by weight of maltodextrin to the paste, mix well, and dry using spray drying. The inlet air temperature of the spray dryer is 170°C, and the outlet air temperature is 80°C. Collect the dried powder.
[0045] Step 6, Granulation and Packaging: The dried powder obtained in Step 5 is granulated into granules using a dry granulation method. After granulation, it is packaged into 10g bags to obtain Polygonatum and Sophora flavescens health supplement.
[0046] Example 3
[0047] Unlike Examples 1 and 2, a method for preparing a health-preserving powder containing Polygonatum sibiricum and Sophora flavescens includes the following steps:
[0048] Step 1: Raw material pretreatment. Select Polygonatum tubers and soybeans that are free from mold and insect infestation. Clean them thoroughly to remove impurities. Then slice the Polygonatum and crush the soybeans. The slices of Polygonatum should be 4mm thick. Filter the crushed soybeans through a 30-mesh sieve to obtain coarse soybean powder.
[0049] Step 2: Processing and Extraction of Polygonatum sibiricum. Take 1000g of Polygonatum sibiricum slices and add 200g of semi-dry rice wine for moistening. Specifically, for every 100 parts by weight of Polygonatum sibiricum slices, add 15 parts by weight of rice wine, mix well, seal and moisten for 4 hours until the rice wine is fully absorbed. Then, place the moistened Polygonatum sibiricum slices in a steaming container and steam at 110℃ for 1 hour. Remove and dry at 55℃ until the moisture content is below 8%. Crush and pass through an 80-mesh sieve to obtain processed Polygonatum sibiricum powder. Take 100g of processed Polygonatum sibiricum powder, add 1000mL of water, and extract ultrasonically at 70℃ for 45 minutes. Filter, collect the extract, and set aside the residue. The rice wine is semi-dry rice wine, and the amount of water added is 15% of the weight of the Polygonatum sibiricum slices.
[0050] Step 3: Enzymatic extraction of soybean powder. Take 100g of crude soybean powder, add 800mL of water, adjust the pH to 5.5, add 1.2g of compound enzyme preparation, and enzymatically hydrolyze at 50℃ for 1.5 hours. The compound enzyme preparation is a mixture of cellulase, hemicellulase, and amylase in a mass ratio of 2:1:1, and the amount of compound enzyme preparation added is 0.5-1.5% of the weight of crude soybean powder. After enzymatic hydrolysis, heat to 95℃ to inactivate the enzyme for 12 minutes, then filter, collect the extract, and reserve the filter residue.
[0051] Step 4: Filter residue treatment and mixed extraction. Mix the filter residues obtained in Step 2 and Step 3, add 400 mL of water, reflux extract at 85°C for 1 hour, filter, and combine the extracts.
[0052] Step 5: Concentration and drying. Combine the Polygonatum extract obtained in Step 2, the Sophora flavescens enzymatic hydrolysis extract obtained in Step 3, and the mixed extract obtained in Step 4. Concentrate under reduced pressure at 60°C to a paste with a relative density of 1.12 (measured at 50°C). Add 30% by weight of maltodextrin to the paste, mix well, and dry using spray drying. The inlet air temperature of the spray dryer is 170°C, and the outlet air temperature is 80°C. Collect the dried powder.
[0053] Step 6, Granulation and Packaging: The dried powder obtained in Step 5 is granulated into granules using a dry granulation method. After granulation, it is packaged into 10g bags to obtain Polygonatum and Sophora flavescens health supplement.
[0054] Comparative Example 1
[0055] The process is basically the same as in Example 1, except that in step 2, the Polygonatum is not soaked in rice wine or steamed. Instead, the Polygonatum slices are washed, dried, pulverized, and then extracted by ultrasound.
[0056] Comparative Example 2
[0057] The process is basically the same as in Example 1, except that in step 3, no compound enzyme preparation is added for enzymatic hydrolysis, but hot water extraction is used directly (material-liquid ratio 1:8, 80°C, 2 hours).
[0058] Effect verification
[0059] Sensory evaluation, reconstitution properties, and content of the main active ingredient (calculated as Polygonatum polysaccharide) were performed on the powders prepared in Examples 1-3 and Comparative Examples 1-2. Twenty trained sensory evaluators were invited to score the products (out of 10 points), with evaluation indicators including color, flavor, mouthfeel, and reconstitution properties (presence or absence of clumping). The content of Polygonatum polysaccharide was determined using the phenol-sulfuric acid method. The results are shown in the table below:
[0060] Group Sensory rating (average score) Description of dynamism Polysaccharide content of Polygonatum sibiricum (mg / g) Example 1 9.2 Dissolves rapidly without clumping. 25.6 Example 2 8.8 Dissolves quickly, with a small amount of precipitate. 24.1 Example 3 8.9 Dissolves quickly without clumping. 24.8 Comparative Example 1 6.5 It dissolves poorly and has an earthy smell. 18.3 Comparative Example 2 7.2 Dissolves slowly and produces a precipitate. 15.2
[0061] As shown in the table above, Examples 1-3 prepared using the method of this invention are significantly superior to the comparative examples in terms of sensory evaluation, reconstitution properties, and polysaccharide content. This indicates that the processing and enzymatic hydrolysis processes of this invention have a significant effect on improving product flavor and increasing the dissolution rate of active ingredients. In particular, the rice wine processing effectively improves the undesirable flavor of Polygonatum, while the compound enzymatic hydrolysis significantly increases the release of effective substances from soybean oil, thereby improving the overall quality of the product.
[0062] Those skilled in the art will understand that the features described in the various embodiments and / or claims of the present invention can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in the present invention. In particular, the features described in the various embodiments and / or claims of the present invention can be combined or combined in various ways without departing from the spirit and teachings of the present invention. All such combinations and / or combinations fall within the scope of the present invention.
Claims
1. A method for preparing a health-preserving powder containing Polygonatum sibiricum and Sophora flavescens, characterized in that, Includes the following steps: Step 1: Raw material pretreatment. Select Polygonatum tubers and soybeans that are free from mold and insect infestation, wash them clean, remove impurities, slice the Polygonatum and crush the soybeans. Step 2: Processing and extraction of Polygonatum sibiricum. The Polygonatum sibiricum slices obtained in Step 1 are moistened with rice wine. Then, the moistened Polygonatum sibiricum slices are placed in a steaming container and steamed at 100-110℃ for 1-3 hours. After steaming, they are removed and dried at 50-60℃ until the moisture content is less than 8%. They are then pulverized and passed through a 60-80 mesh sieve to obtain processed Polygonatum sibiricum powder. The processed Polygonatum sibiricum powder is mixed with water at a material-to-liquid ratio of 1:8-1:12 (g / mL). The mixture is then ultrasonically extracted at 60-80℃ for 30-60 minutes. After filtration, the extract is collected, and the residue is kept for later use. Step 3: Enzymatic extraction of soybeans. Mix the crude soybean powder obtained in Step 1 with water at a material-to-liquid ratio of 1:5-1:10 (g / mL), adjust the pH to 5.0-6.0, add the compound enzyme preparation, and enzymatically hydrolyze at 45-55℃ for 1-2 hours. After the enzymatic hydrolysis is completed, raise the temperature to 90-100℃ to inactivate the enzyme for 10-15 minutes, then filter, collect the extract, and keep the filter residue for later use. Step 4: Filter residue treatment and mixed extraction. Mix the filter residues obtained in Step 2 and Step 3, add 3-5 times the weight of water, reflux extract 1-2 times, 1 hour each time, filter, and combine the extracts. Step 5: Concentration and drying. Combine the Polygonatum extract obtained in Step 2, the Sophora flavescens enzymatic hydrolysis extract obtained in Step 3, and the mixed extract obtained in Step 4. Concentrate under reduced pressure to an extract with a relative density of 1.10-1.
15. Add 20-40% of the extract by weight of maltodextrin to the extract, mix well, and dry using spray drying method. Collect the dried powder. Step 6, Granulation and Packaging: The dried powder obtained in Step 5 is granulated into granules using dry or wet granulation, sized, and packaged to obtain Polygonatum and Sophora flavescens health supplement.
2. The method for preparing a health-preserving powder containing Polygonatum sibiricum and Sophora flavescens according to claim 1, characterized in that, In step 1, the slices of Polygonatum are 3-5 mm thick, and the crushed soybeans are filtered through a 20-40 mesh sieve to obtain coarse soybean powder.
3. The method for preparing a health-preserving powder containing Polygonatum sibiricum and Sophora flavescens according to claim 1, characterized in that, In step 2, add 10-20 parts by weight of rice wine to every 100 parts by weight of Polygonatum slices, mix well, seal and let it soak for 2-4 hours until the rice wine is fully absorbed.
4. The method for preparing a health-preserving powder containing Polygonatum sibiricum and Sophora flavescens according to claim 1, characterized in that, In step 2, the rice wine is a semi-dry type, and the amount of water added is 15% of the weight of the Polygonatum slices.
5. The method for preparing a health-preserving powder containing Polygonatum sibiricum and Sophora flavescens according to claim 1, characterized in that, In step 3, the compound enzyme preparation is a mixture of cellulase, hemicellulase and amylase in a mass ratio of 2:1:
1.
6. The method for preparing a health-preserving powder containing Polygonatum sibiricum and Sophora flavescens according to claim 1, characterized in that, In step 3, the amount of the compound enzyme preparation added is 0.5-1.5% of the weight of the soybean powder.
7. The method for preparing a health-preserving powder containing Polygonatum sibiricum and Sophora flavescens according to claim 1, characterized in that, In step 4, the reflux extraction temperature is 80-90℃.
8. The method for preparing a health-preserving powder containing Polygonatum sibiricum and Sophora flavescens according to claim 1, characterized in that, In step 5, the temperature for vacuum concentration is 50-65°C.
9. The method for preparing a health-preserving powder containing Polygonatum sibiricum and Sophora flavescens according to claim 1, characterized in that, In step 5, the inlet air temperature of the spray dryer is 160-180℃, and the outlet air temperature is 70-90℃.