Astragalus-jasmine tea solid beverage as well as preparation method and application thereof

Abstract

The invention discloses a radix astragali and jasmine tea solid beverage as well as a preparation method and application thereof, and belongs to the technical field of beverage processing. The astragalus mongholicus-jasmine tea solid beverage comprises the following components in parts by weight: 1-9 parts of astragalus mongholicus extract and 1-9 parts of jasmine tea extract, the content of calycosin glucoside in the astragalus extract is 1 to 1.2 mg / g, the content of astragaloside is 0.9 to 1.1 mg / g, the content of total sugar is 60 to 70 mg / g, and the content of total saponin is 25 to 30 mg / g. The astragalus mongholicus-jasmine tea solid beverage has double effects of resisting oxidation and resisting aging, has double special flavors of traditional Chinese medicine astragalus mongholicus and jasmine tea, is good in solubility and stability, is suitable for being drunk as a daily beverage for a long time, and has a relatively good development prospect.

Description

Technical Field

[0001] The invention belongs to the technical field of beverage processing, and in particular relates to an astragalus jasmine tea solid beverage and a preparation method and application thereof. Background Art

[0002] Aging is a natural process that involves the gradual decline of physiological functions, the decline of biological functions, and the impact on daily life activities. Aging is not only manifested in external changes such as sagging skin and increased wrinkles, but also accompanied by internal problems such as weakened memory, decreased reaction ability and decreased immune system function. Aging is also an important risk factor for many chronic diseases such as cardiovascular disease, diabetes and osteoporosis. As people's health awareness continues to increase, the demand for preventing and improving aging through traditional Chinese medicine, diet therapy and health preservation is increasing.

[0003] Astragalus is the dried root of Astragalus membranaceus (Fisch.) Bge. var. mongholicus (Bge.) Hsiao or Astragalus membranaceus (Fisch.) Bge. of the Leguminosae family. It has a sweet taste and a slightly warm nature. It belongs to the lung meridian and spleen meridian. It has multiple pharmacological effects such as replenishing qi and strengthening the exterior, diuresis, protecting the liver, and enhancing immunity. It has been widely used in a variety of health foods and medicines. Jasmine tea is made from green tea or other teas as the base tea, and jasmine flowers are added to it. It has a fresh taste and has the effects of regulating qi, relieving depression, and dispelling filth and harmonizing the stomach. Jasmine tea is rich in tea polyphenols, aromatic oils and other ingredients, and has antibacterial and anti-inflammatory effects, refreshing the mind, and promoting digestion. At present, there are no functional beverages on the market that use astragalus and jasmine tea as the main ingredients. Summary of the invention

[0004] In view of the above-mentioned prior art, the present invention provides an astragalus and jasmine tea solid beverage and a preparation method and application thereof, so as to solve the technical problem that there is no functional beverage with astragalus and jasmine tea as main ingredients in the prior art.

[0005] In order to achieve the above-mentioned purpose, the technical scheme adopted by the present invention is to provide an astragalus jasmine tea solid beverage, which comprises 1 to 9 parts of astragalus extract and 1 to 9 parts of jasmine tea extract by weight; the content of calycosin isoflavone glucoside in the astragalus extract is 1 to 1.2 mg / g, the content of astragaloside IV is 0.9 to 1.1 mg / g, the content of total sugar is 60 to 70 mg / g, and the content of total saponins is 25 to 30 mg / g.

[0006] The beneficial effects of the present invention are as follows: the astragalus jasmine tea solid beverage provided by the present invention has both the herbal sweet fragrance of astragalus and the fresh fragrance of jasmine tea, forming a unique taste with fresh and mellow fragrance and rich layers, and has good palatability.

[0007] The combination of astragalus and jasmine tea extracts also achieves synergistic antioxidant and anti-aging effects. Astragalus extract can enhance telomerase activity, reduce oxidative stress damage, and delay aging by regulating metabolic pathways in the body. At the same time, the combined effects of astragaloside, astragaloside I and tea polyphenols enhance the ability to scavenge free radicals and slow down cell aging. At the same time, it reduces the level of cell damage by inhibiting mitochondrial oxidative stress and lipid peroxidation.

[0008] Based on the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, the astragalus jasmine tea solid beverage comprises 1 part of astragalus extract and 1 part of jasmine tea extract by weight; the content of calycosin glucoside in the astragalus extract is 1.1 mg / g, the content of astragaloside IV is 0.99 mg / g, the content of total sugar is 64.1 mg / g, and the content of total saponins is 26.98 mg / g.

[0010] Furthermore, the astragalus extract and the jasmine tea extract are both in the form of freeze-dried powder.

[0011] The present invention also provides a method for preparing the astragalus and jasmine tea solid beverage, comprising the following steps:

[0012] (1) Preparation of Astragalus Extract

[0013] S11: decoct the astragalus with water, combine the decoctions, and then concentrate the decoctions until each 0.7-0.9 mL of the decoction is equivalent to 1 g of the raw drug, thereby obtaining an astragalus concentrate;

[0014] S12: drying the astragalus concentrate to obtain an astragalus extract;

[0015] (2) Preparation of Jasmine Tea Extract

[0016] S21: extracting jasmine tea at low temperature to obtain jasmine tea extract;

[0017] S22: removing impurities from the jasmine tea extract, and then concentrating the extract to obtain a jasmine tea concentrate;

[0018] S23: drying the jasmine tea concentrate to obtain a jasmine tea extract;

[0019] (3) Mix the astragalus extract and the jasmine tea extract according to a weight ratio to obtain the product.

[0020] Furthermore, the drying process in step S12 and step S23 is freeze-drying.

[0021] Furthermore, the specific process of freeze-drying is to pre-freeze the astragalus concentrate or jasmine tea extract to below -40°C, and then freeze-dry for 48 hours.

[0022] Further, in step S11, the astragalus is decocted twice, each decocting time is 1 hour, 10 times the amount of water is added for the first time, and 8 times the amount of water is added for the second time.

[0023] Furthermore, in step S11, the decoction is concentrated so that each 0.8 mL of the decoction is equivalent to 1 g of the crude drug.

[0024] Furthermore, the impurity removal process in step S22 is to use a multi-stage membrane separation system for impurity removal.

[0025] The present invention also provides an application of the astragalus jasmine tea solid beverage, which is used in the preparation of anti-aging food, health care products or medicines.

[0026] The beneficial effects of the present invention are:

[0027] 1. The astragalus jasmine tea solid beverage provided by the present invention has the dual effects of anti-oxidation and anti-aging. It not only inherits the anti-aging effect of the traditional Chinese medicine astragalus, but also integrates the antioxidant function of jasmine green tea, achieving complementary and enhanced effects, and providing consumers with a more comprehensive and significant anti-aging effect.

[0028] 2. Compared with solid beverages made of a single raw material, the present invention combines the dual characteristic flavors of the Chinese medicine Astragalus and jasmine tea, eliminating the heavy Chinese medicine taste of Astragalus while retaining the sweet aroma of plants and the fresh fragrance of jasmine tea, making the product taste richer and more unique. At the same time, this flavor can maintain good solubility and stability in both cold and hot water, and the tea soup is light yellow, clear and transparent, without residue, which improves the drinking experience of consumers.

[0029] 3. The raw and auxiliary materials selected for the present invention are all medicinal and edible raw materials and common food ingredients, which ensure the safety and effectiveness of the product. Long-term drinking can not only continuously exert the anti-aging and antioxidant effects, but also there is no need to worry about side effects or residues. It is suitable for long-term drinking as a daily beverage and has good development prospects.

[0030] 4. The preparation process of the present invention ensures the high content and stability of the active ingredients in the extract, thereby improving the overall quality and effect of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1The diagrams are sample diagrams of freeze-dried Astragalus powder in Example 1 and Comparative Examples 1-2, wherein Figure A is the freeze-dried Astragalus powder sample prepared in step (1) of Example 1, Figure B is the freeze-dried Astragalus powder sample prepared in Comparative Example 1, and Figure C is the freeze-dried Astragalus powder sample prepared in Comparative Example 2;

[0032] Figure 2 This is the result diagram of SOD index in mouse serum in the animal experiment in the experimental example;

[0033] Figure 3 This is the result diagram of GSH index in mouse serum in the animal experiment in the experimental example;

[0034] Figure 4 This is the result diagram of GSH index in mouse serum in the animal experiment in the experimental example;

[0035] Figure 5 This is a graph showing the swimming time results of mice in the animal experiment in the experimental example. DETAILED DESCRIPTION

[0036] The jasmine tea used in the examples of the present invention is a conventional product purchased from the market, and its origin is Anhui Province. If no specific conditions are specified in the examples, the conventional conditions or the conditions recommended by the manufacturer are used. If the manufacturer of the reagents or instruments used is not specified, they are all conventional products that can be purchased commercially.

[0037] The principles and features of the present invention are described below in conjunction with embodiments. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0038] Example 1

[0039] The present embodiment provides an astragalus jasmine tea solid beverage, comprising 9 parts by mass of astragalus freeze-dried powder and 1 part by mass of jasmine tea freeze-dried powder; the content of calycosin glucoside in the astragalus extract is 1.08 mg / g, the content of astragaloside IV is 1.03 mg / g, the content of total sugar is 64.9 mg / g, and the content of total saponins is 27.21 mg / g.

[0040] This embodiment also provides a method for preparing the above-mentioned astragalus jasmine tea solid beverage, comprising the following steps:

[0041] (1) Preparation of freeze-dried Astragalus powder:

[0042] S11 extraction and concentration: weigh the Astragalus root, decoct it twice, add 10 times the amount of water for the first time, and add 8 times the amount of water for the second time, decoct for 1 hour each time, combine the decoctions, filter, and concentrate the filtrate until each 0.8 mL of the decoction is equivalent to 1 g of the crude drug, and the relative density of the decoction is 1.17, to obtain the Astragalus root concentrate;

[0043] S12 freeze drying: pre-freeze the astragalus concentrate to -45°C, and then place it in a freeze dryer for freeze drying. Set the working pressure to 1.2MPa, the condensation pressure to 1.4MPa, and the freeze drying time to 48h to remove residual moisture and obtain a fluffy and fine-textured astragalus freeze-dried powder product;

[0044] (2) Preparation of jasmine tea freeze-dried powder:

[0045] S21 low temperature extraction: weigh jasmine tea, put the jasmine tea into a stainless steel extraction tank, add 8 times the amount of purified water, maintain the water bath temperature at 40°C, soak for 8 hours, and obtain a jasmine tea extract;

[0046] S22 impurity removal: using 300 mesh separation membranes with various pore sizes to remove various impurities in the jasmine tea extract, achieving impurity removal of the extract and obtaining clarified jasmine tea liquid;

[0047] S23 freeze drying: pre-freeze the jasmine tea liquid to -45°C, and then place it in a freeze dryer for freeze drying, set the working pressure to 1.2MPa, the condensation pressure to 1.4MPa, and the freeze drying time to 48h to remove residual moisture and obtain a jasmine tea freeze-dried powder with a fluffy structure and fine texture;

[0048] (3) The astragalus freeze-dried powder prepared in step (1) and the jasmine tea freeze-dried powder prepared in step (2) are mixed according to a weight ratio to obtain the product.

[0049] Example 2

[0050] The present embodiment provides an astragalus jasmine tea solid beverage, comprising 5 parts by mass of astragalus freeze-dried powder and 1 part by mass of jasmine tea freeze-dried powder; the content of calycosin glucoside in the astragalus extract is 1.12 mg / g, the content of astragaloside IV is 0.98 mg / g, the content of total sugar is 64.3 mg / g, and the content of total saponins is 26.85 mg / g.

[0051] This embodiment also provides a method for preparing the above-mentioned astragalus jasmine tea solid beverage, comprising the following steps:

[0052] (1) Preparation of freeze-dried Astragalus powder:

[0053] S11 extraction and concentration: weigh the Astragalus root, decoct it twice, add 10 times the amount of water for the first time, and add 8 times the amount of water for the second time, decoct for 1 hour each time, combine the decoctions, filter, and concentrate the filtrate until each 0.8 mL of the decoction is equivalent to 1 g of the crude drug, and the relative density of the decoction is 1.17, to obtain the Astragalus root concentrate;

[0054] S12 freeze drying: then placing in a freeze dryer for freeze drying, setting the working pressure to 1.3 MPa, the condensation pressure to 1.6 MPa, the freeze drying time to 48 h, removing residual water, and obtaining a fluffy and fine-textured freeze-dried astragalus powder product;

[0055] (2) Preparation of jasmine tea freeze-dried powder:

[0056] S21 low temperature extraction: weigh jasmine tea, put the jasmine tea into a stainless steel extraction tank, add 8 times the amount of purified water, maintain the water bath temperature at 40°C, soak for 8 hours, and obtain a jasmine tea extract;

[0057] S22 impurity removal and concentration: Use 300-mesh separation membranes with various pore sizes to remove various impurities in the jasmine tea extract, achieve impurity removal treatment of the extract, and obtain clarified jasmine tea liquid;

[0058] S23 freeze drying: pre-freeze the jasmine tea liquid to -40°C, and then place it in a freeze dryer for freeze drying, set the working pressure to 1.3MPa, the condensation pressure to 1.6MPa, and the freeze drying time to 48h to remove residual moisture and obtain a jasmine tea freeze-dried powder with a fluffy structure and fine texture;

[0059] (3) The astragalus freeze-dried powder prepared in step (1) and the jasmine tea freeze-dried powder prepared in step (2) are mixed according to a weight ratio to obtain the product.

[0060] Example 3

[0061] The present embodiment provides an astragalus jasmine tea solid beverage, comprising 1 mass part of astragalus freeze-dried powder and 1 mass part of jasmine tea freeze-dried powder; the content of calycosin glucoside in the astragalus extract is 1.10 mg / g, the content of astragaloside IV is 0.99 mg / g, the content of total sugar is 64.10 mg / g, and the content of total saponins is 26.98 mg / g.

[0062] This embodiment also provides a method for preparing the above-mentioned astragalus jasmine tea solid beverage, comprising the following steps:

[0063] (1) Preparation of freeze-dried Astragalus powder:

[0064] S11 extraction and concentration: weigh the Astragalus root, decoct it twice, add 10 times the amount of water for the first time, and add 8 times the amount of water for the second time, decoct for 1 hour each time, combine the decoctions, filter, and concentrate the filtrate until each 0.8 mL of the decoction is equivalent to 1 g of the crude drug, and the relative density of the decoction is 1.17, to obtain the Astragalus root concentrate;

[0065] S12 freeze drying: pre-freeze the astragalus concentrate to -45°C, and then place it in a freeze dryer for freeze drying, set the working pressure to 1.3MPa, the condensation pressure to 1.8Mpa, and the freeze drying time to 48h to remove residual moisture and obtain a fluffy and fine-textured astragalus freeze-dried powder product;

[0066] (2) Preparation of jasmine tea freeze-dried powder:

[0067] S21 low temperature extraction: weigh jasmine tea, put the jasmine tea into a stainless steel extraction tank, add 8 times the amount of purified water, maintain the water bath temperature at 40°C, soak for 8 hours, and obtain a jasmine tea extract;

[0068] S22 impurity removal: using 300 mesh separation membranes with various pore sizes to remove various impurities in the jasmine tea extract, achieving impurity removal of the extract and obtaining clarified jasmine tea liquid;

[0069] S23 freeze drying: pre-freeze the jasmine tea liquid to -45°C, and then place it in a freeze dryer for freeze drying, set the working pressure to 1.3MPa, the condensation pressure to 1.8MPa, and the freeze drying time to 48h to remove residual moisture and obtain a jasmine tea freeze-dried powder with a fluffy structure and fine texture;

[0070] (3) The astragalus freeze-dried powder prepared in step (1) and the jasmine tea freeze-dried powder prepared in step (2) are mixed according to a weight ratio to obtain the product.

[0071] Example 4

[0072] The present embodiment provides an astragalus jasmine tea solid beverage, comprising 1 mass part of astragalus freeze-dried powder and 5 mass parts of jasmine tea freeze-dried powder; the content of calycosin glucoside in the astragalus extract is 1.13 mg / g, the content of astragaloside IV is 1.05 mg / g, the content of total sugar is 63.8 mg / g, and the content of total saponins is 27.15 mg / g.

[0073] This embodiment also provides a method for preparing the above-mentioned astragalus jasmine tea solid beverage, comprising the following steps:

[0074] (1) Preparation of freeze-dried Astragalus powder:

[0075] S11 extraction and concentration: weigh the Astragalus root, decoct it twice, add 10 times the amount of water for the first time, and add 8 times the amount of water for the second time, decoct for 1 hour each time, combine the decoctions, filter, and concentrate the filtrate until each 0.8 mL of the decoction is equivalent to 1 g of the crude drug, and the relative density of the decoction is 1.17, to obtain the Astragalus root concentrate;

[0076] S12 freeze drying: pre-freeze the astragalus concentrate to -40°C, and then place it in a freeze dryer for freeze drying, set the working pressure to 1.4MPa, the condensation pressure to 1.4Mpa, and the freeze drying time to 48h to remove residual moisture and obtain a fluffy and fine-textured astragalus freeze-dried powder product;

[0077] (2) Preparation of jasmine tea freeze-dried powder:

[0078] S21 low temperature extraction: weigh jasmine tea, put the jasmine tea into a stainless steel extraction tank, add 8 times the amount of purified water, maintain the water bath temperature at 40°C, soak for 8 hours, and obtain a jasmine tea extract;

[0079] S22 impurity removal: using 300 mesh separation membranes with various pore sizes to remove various impurities in the jasmine tea extract, achieving impurity removal of the extract and obtaining clarified jasmine tea liquid;

[0080] S23 freeze drying: pre-freeze the jasmine tea liquid to -40°C, and then place it in a freeze dryer for freeze drying, set the working pressure to 1.4MPa, the condensation pressure to 1.4MPa, and the freeze drying time to 48h to remove residual water to obtain a jasmine tea freeze-dried powder with a fluffy structure and fine texture;

[0081] (3) The astragalus freeze-dried powder prepared in step (1) and the jasmine tea freeze-dried powder prepared in step (2) are mixed according to a weight ratio to obtain the product.

[0082] Example 5

[0083] The present embodiment provides an astragalus jasmine tea solid beverage, comprising 1 mass part of astragalus freeze-dried powder and 9 mass parts of jasmine tea freeze-dried powder; the content of calycosin glucoside in the astragalus extract is 1.15 mg / g, the content of astragaloside IV is 1.04 mg / g, the content of total sugar is 64.6 mg / g, and the content of total saponins is 26.84 mg / g.

[0084] This embodiment also provides a method for preparing the above-mentioned astragalus jasmine tea solid beverage, comprising the following steps:

[0085] (1) Preparation of freeze-dried Astragalus powder:

[0086] S11 extraction and concentration: weigh the Astragalus root, decoct it twice, add 10 times the amount of water for the first time, and add 8 times the amount of water for the second time, decoct for 1 hour each time, combine the decoctions, filter, and concentrate the filtrate until each 0.8 mL of the decoction is equivalent to 1 g of the crude drug, and the relative density of the decoction is 1.17, to obtain the Astragalus root concentrate;

[0087] S12 freeze drying: pre-freeze the astragalus concentrate to -50°C, and then place it in a freeze dryer for freeze drying. Set the working pressure to 1.3MPa, the condensation pressure to 1.6MPa, and the freeze drying time to 48h to remove residual moisture and obtain a fluffy and fine-textured astragalus freeze-dried powder product;

[0088] (2) Preparation of jasmine tea freeze-dried powder:

[0089] S21 low temperature extraction: weigh jasmine tea, put the jasmine tea into a stainless steel extraction tank, add 8 times the amount of purified water, maintain the water bath temperature at 40°C, soak for 8 hours, and obtain a jasmine tea extract;

[0090] S22 impurity removal: using 300 mesh separation membranes with various pore sizes to remove various impurities in the jasmine tea extract, achieving impurity removal of the extract and obtaining clarified jasmine tea liquid;

[0091] S23 freeze drying: pre-freeze the jasmine tea liquid to -50°C, and then place it in a freeze dryer for freeze drying, set the working pressure to 1.3MPa, the condensation pressure to 1.6MPa, and the freeze drying time to 48h to remove residual moisture, thereby obtaining a jasmine tea freeze-dried powder with a fluffy structure and fine texture;

[0092] (3) The astragalus freeze-dried powder prepared in step (1) and the jasmine tea freeze-dried powder prepared in step (2) are mixed according to a weight ratio to obtain the product.

[0093] Comparative Example 1

[0094] This comparative example provides a method for preparing freeze-dried astragalus powder, comprising the following steps:

[0095] S11 extraction and concentration: weigh the Astragalus root, decoct it twice, add 10 times the amount of water for the first time, and add 8 times the amount of water for the second time, decoct for 1 hour each time, combine the decoctions, filter, and concentrate the filtrate until each 0.8 mL of the decoction is equivalent to 1 g of the crude drug, and the relative density of the decoction is 1.17, to obtain the Astragalus root concentrate;

[0096] S12 Vacuum drying: put the Astragalus concentrate into a constant weight evaporating dish, place the evaporating dish on a water bath and heat the Astragalus concentrate to a solid state. First adjust the vacuum drying oven to 35°C, gradually increase the temperature to 60°C, and dry at a vacuum degree of 0.09MPa for 10 hours.

[0097] This comparative example also provides a freeze-dried astragalus powder prepared by the above preparation method.

[0098] Comparative Example 2

[0099] This comparative example provides a method for preparing freeze-dried astragalus powder, comprising the following steps:

[0100] S11 extraction and concentration: weigh the Astragalus root, decoct it twice, add 10 times the amount of water for the first time, and add 8 times the amount of water for the second time, decoct for 1 hour each time, combine the decoctions, filter, and concentrate the filtrate until each 0.8 mL of the decoction is equivalent to 1 g of the crude drug, and the relative density of the decoction is 1.17, to obtain the Astragalus root concentrate;

[0101] S12 spray drying: put the astragalus concentrate into a spray dryer, set the fan frequency to 50 Hz, the peristaltic pump speed to 4 r / min, the needle-passing interval to 4 s, and the inlet temperature to 190°C for spray drying.

[0102] This comparative example also provides a freeze-dried astragalus powder prepared by the above preparation method.

[0103] Experimental example

[0104] 1. Solubility test

[0105] The properties of the freeze-dried Astragalus powder prepared in step (1) of Examples 1-5 are similar. The freeze-dried Astragalus powder prepared in step (1) of Example 1 was taken as an example to test its solubility compared with the freeze-dried Astragalus powder prepared in Comparative Examples 1-2.

[0106] Figure 1 The freeze-dried Astragalus powder prepared in step (1) of Example 1 and the dry Astragalus powder prepared in Comparative Examples 1-2 (A-Example 1, B-Comparative Example 1, C-Comparative Example 2) are shown in the figure. As can be seen from the figure, the freeze-dried Astragalus powder of Example 1 is light yellow and has low viscosity; when vacuum dried in Comparative Example 1, the obtained dry Astragalus powder extract swells severely; when spray dried in Comparative Example 2, the extract powder is yellow and has high overall viscosity; Next, the dry Astragalus powder samples prepared in Example 1 and Comparative Examples 1-2 are taken for further solubility testing.

[0107] Solubility determination method: Take 0.5 g of sample, add 10 mL of distilled water at 25°C, stir with a magnetic stirrer, and record the time required for the sample to be completely dissolved.

[0108] Solubility determination method: Take 0.5g sample in a 50mL beaker, add 10mL distilled water, stir with a magnetic stirrer for 10min to make the sample evenly dispersed in the water, centrifuge for 10min, centrifuge conditions: 25℃, 6000r / min. After centrifugation, take the supernatant and place it in a pre-weighed culture dish, and dry it at 105℃ to constant weight.

[0109]

[0110] Where: m is the mass of the weighed powder sample, g; m1 is the weight of the sample after drying, g.

[0111] The experimental results are shown in Table 1:

[0112] Table 1 Solubility results

[0113] Experimental Group Solubility / % Example 1 56±1.20 Comparative Example 1 45±2.00 Comparative Example 2 50±1.05

[0114] As can be seen from Table 1, the freeze-dried astragalus powder prepared in Example 1 has the highest solubility, good dissolution effect, and no residual residue.

[0115] 2. Sensory evaluation

[0116] The products prepared in Examples 1-5 were scored and counted based on four indicators, namely, smell, color, transparency, and taste, and the sensory indicators of the five formulations were evaluated. The specific evaluation indicators are shown in Table 3:

[0117] Table 3 Sensory evaluation score table

[0118]

[0119] The specific experimental results are shown in Table 4:

[0120] Table 4 Sensory evaluation results

[0121] Formula color transparency odor Taste Total score 1 7.2 8.6 10 10 37.4 2 7.4 8.7 10.5 10.5 37.1 3 8.5 9.1 12.2 12 41.8 4 7.3 8.1 11.2 10.2 36.8 5 7 8.4 10.3 9.6 35.3

[0122] It can be seen from the results in Table 2 that the astragalus jasmine tea solid beverage prepared in the embodiment of the present invention has a mellow and rich taste, a light yellow and clear color, and a fragrant smell, among which the evaluation of formulation 3 is better than that of other formulations.

[0123] 3. Anti-aging experiment

[0124] (1) Animals and reagents

[0125] Animals: 72 healthy male ICR rats, weighing 200-230 g, were purchased from Spefoc Biotechnology Co., Ltd.

[0126] Reagents: the astragalus and jasmine tea solid beverage prepared in Example 1-5 of the present invention, and D-galactose.

[0127] (2) Animal experimental methods

[0128] D-galactose was injected subcutaneously at the back of the neck of ICR mice to promote the increase of oxidative stress, DNA damage and other reactions in the body, and an aging model was constructed. The mice were randomly divided into 12 groups, namely, a saline control group (A), a model group (M), vitamin E (positive drug group), formula 1 (Example 1), formula 2 (Example 2), formula 3 (Example 3), formula 4 (Example 4) and formula 5 (Example 5), and the dosage of each experimental group was 400 mg / (kg·bw). After continuous oral gavage for 30 days, the root and tail of the mice were loaded with 5% body weight lead foil, and the mice were placed in a swimming box (water depth 30 cm, water temperature 25°C). The swimming state of the mice was observed. If they floated on the water surface and did not move, they could be stirred appropriately near them. The time from the start of swimming to fatigue of the mice was recorded as the swimming time of the mice. At the same time, the mouse serum was taken to detect the activity of SOD, MDA and GSH oxidation indicators in the mouse serum.

[0129] (3) Experimental results

[0130] Figure 2-4 The results of SOD, GSH and MDA in mouse serum are shown in Figure 1. It can be seen from the figure that the expression levels of SOD and GSH in the serum of mice after modeling are reduced, and the expression level of MDA is increased. After mice were gavaged with the solid beverage of Astragalus jasmine tea prepared by the present invention, all the formulas can improve the activity of oxidation indicators in aging mice, among which Formula 3 has the best anti-aging effect.

[0131] Figure 5 The figure is a result of the swimming time of mice. It can be seen from the figure that after modeling, the swimming time of mice is reduced and the fatigue degree is increased. After administration, the astragalus jasmine tea solid beverage of the present invention can significantly prolong the loaded swimming time of mice and enhance the dynamic tolerance of mice. All the formulas can improve the fatigue state of aging mice, among which formula 3 has the best anti-fatigue effect.

[0132] Although the specific implementation of the present invention is described in detail in conjunction with the embodiments, it should not be understood as limiting the scope of protection of this patent. Within the scope described in the claims, various modifications and variations that can be made by those skilled in the art without creative work still fall within the scope of protection of this patent.

Claims

1. An astragalus and jasmine tea solid beverage, characterized in that: The astragalus jasmine tea solid beverage comprises 1 to 9 parts of astragalus extract and 1 to 9 parts of jasmine tea extract by weight; the content of calycosin glucoside in the astragalus extract is 1 to 1.2 mg / g, the content of astragaloside IV is 0.9 to 1.1 mg / g, the content of total sugar is 60 to 70 mg / g, and the content of total saponin is 25 to 30 mg / g.

2. The astragalus jasmine tea solid beverage according to claim 1, characterized in that: The astragalus jasmine tea solid beverage comprises 1 part of astragalus extract and 1 part of jasmine tea extract by weight; the content of calycosin glucoside in the astragalus extract is 1.1 mg / g, the content of astragaloside IV is 0.99 mg / g, the content of total sugar is 64.1 mg / g, and the content of total saponin is 26.98 mg / g.

3. The astragalus jasmine tea solid beverage according to claim 1, characterized in that: The astragalus extract and jasmine tea extract are both in the form of freeze-dried powder.

4. The method for preparing the astragalus and jasmine tea solid beverage according to any one of claims 1 to 3, characterized in that: The following steps are involved: (1) Preparation of Astragalus Extract S11: decoct the astragalus with water, combine the decoctions, and then concentrate the decoctions until each 0.7-0.9 mL of the decoction is equivalent to 1 g of the raw drug, thereby obtaining an astragalus concentrate; S12: drying the astragalus concentrate to obtain an astragalus extract; (2) Preparation of Jasmine Tea Extract S21: extracting jasmine tea at low temperature to obtain jasmine tea extract; S22: removing impurities from the jasmine tea extract, and then concentrating the extract to obtain a jasmine tea concentrate; S23: drying the jasmine tea concentrate to obtain a jasmine tea extract; (3) Mix the astragalus extract and the jasmine tea extract according to a weight ratio to obtain the product.

5. The method for preparing the astragalus and jasmine tea solid beverage according to claim 4, characterized in that: The drying process in step S12 and step S23 is freeze drying.

6. The method for preparing the astragalus and jasmine tea solid beverage according to claim 5, characterized in that: The specific process of freeze drying is to pre-freeze the astragalus concentrate or jasmine tea extract to below -40°C, and then freeze dry for 48 hours.

7. The method for preparing the astragalus and jasmine tea solid beverage according to claim 4, characterized in that: In step S11, the astragalus is decocted twice, each decocting time is 1 hour, 10 times the amount of water is added for the first time, and 8 times the amount of water is added for the second time.

8. The method for preparing the astragalus and jasmine tea solid beverage according to claim 4, characterized in that: In step S11, the decoction is concentrated so that 0.8 mL of the decoction is equivalent to 1 g of the crude drug.

9. The method for preparing the astragalus and jasmine tea solid beverage according to claim 4, characterized in that: The impurity removal process in step S22 is to use a multi-stage membrane separation system for impurity removal.

10. The use of the astragalus and jasmine tea solid beverage according to any one of claims 1 to 3, characterized in that: The astragalus jasmine tea solid beverage is used in the preparation of anti-aging food, health care products or medicines.

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