Instant ginseng capable of maintaining eyesight and preparation method of instant ginseng

Abstract

The invention discloses instant ginseng capable of maintaining eyesight and a preparation method thereof, and belongs to the technical field of ginseng processing. According to the instant ginseng capable of maintaining eyesight, fresh ginseng serves as a main body and is soaked in a traditional Chinese medicine composition soaking solution of raspberry, schisandra chinensis, mulberry, fructus lycii, chrysanthemum, selfheal and the like, and the preparation method comprises the steps of preparation of cooked ginseng, extraction of raspberry, schisandra chinensis, mulberry, fructus lycii, chrysanthemum and selfheal, filtration, centrifugation, concentration, glue mixing and seasoning, packaging and sterilization. According to the invention, ginseng is used as a monarch, raspberry, wolfberry and mulberry are used as ministers, chrysanthemum and prunella vulgaris are used as assistants, and schisandra chinensis is used as a guide, and the medicines are combined to achieve the effect of maintaining eyesight. On the basis of keeping the original state of the ginseng, the instant ginseng is matched with the medicinal and edible traditional Chinese medicines for maintaining the eyesight, so that the original state of the ginseng is kept, the eyesight improving effect is enhanced, and the eyesight maintaining effect is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of ginseng processing, and in particular to an instant ginseng for maintaining eyesight and a preparation method thereof. Background Art

[0002] Modern people are troubled by various eye problems, and myopia, tearing, dry eyes and other eye diseases are prevalent. Most eye diseases are irreversible, and it is too late to pay attention to them after they occur. Therefore, eye protection should be based on prevention, and early prevention should be taken when there is eye discomfort. Supplementing with medicine is not as good as supplementing with food, so it is planned to develop a food that can maintain vision and achieve the effect of maintaining vision in daily diet.

[0003] Ginseng is the dried root and rhizome of Panax ginseng CAMey., a plant of the Araliaceae family. It is a precious traditional Chinese medicine in my country. It was first recorded in the Shennong's Herbal Classic. It is a tonic product with the same origin of medicine and food. It has the effects of greatly replenishing vital energy, restoring pulse and strengthening deficiency, nourishing the spleen and lungs, promoting body fluid and nourishing blood, calming the mind and improving intelligence. It is used for symptoms such as physical weakness and weakness, cold limbs and weak pulse, spleen deficiency and poor appetite, lung deficiency and wheezing and coughing, thirst due to loss of body fluid, internal heat and thirst, qi and blood deficiency, long-term illness and weakness, palpitations and insomnia, impotence and cold uterus. Ginseng is mentioned to have the effect of improving eyesight in many herbal books such as the Shennong's Herbal Classic, the Bencao Mengquan, and the Bencao Jingshu. There are also many prescriptions in the prescription books that are mainly based on ginseng or named for eye diseases, such as the Mingmu Renshen Pills included in the Taiping Shenghui Fang and the Renshen Soup included in the Yishou Ophthalmology. Modern research has also confirmed that ginseng has the effect of improving vision and preventing vision loss. Ginsenoside Rg3 has an inhibitory effect on the growth of corneal neovascularization, thereby preventing vision loss; ginsenoside Rb2 has the effect of improving visual impairment caused by proliferative vitreoretinopathy; 20S-ginsenoside Rg3 can be used to treat epithelial keratitis, stromal keratitis and iritis caused by HSV-1.

[0004] Raspberry, nourishes the kidney, consolidates essence, reduces urine, nourishes the liver and improves eyesight. It is used for spermatorrhea, nocturnal emission, frequent urination, impotence, premature ejaculation, and blurred vision. Schisandra chinensis is astringent, replenishes qi and produces body fluid, nourishes the kidney and calms the mind. It is used for chronic cough, asthenia, nocturnal emission, frequent urination, chronic diarrhea, spontaneous sweating, night sweats, thirst due to loss of body fluid, internal heat and thirst, palpitations and insomnia. In addition, Schisandra chinensis appears in the ginseng soup included in the "Secret Ophthalmology Dragon Wood Theory" and is combined with ginseng to treat "external obstruction caused by collision and puncture". Lycium barbarum nourishes the liver and kidney, replenishes essence and improves eyesight. It is used for asthenia, soreness of waist and knees, dizziness and tinnitus, impotence and spermatorrhea, internal heat and thirst, blood deficiency and sallow complexion, and blurred vision. Mulberry nourishes yin and blood, produces body fluid and moisturizes dryness. It is used for liver and kidney yin deficiency, dizziness and tinnitus, palpitations and insomnia, premature graying of hair, thirst due to loss of body fluid, internal heat and thirst, and dry intestines and constipation. Chrysanthemum dispels wind and heat, soothes the liver and improves eyesight, clears away heat and detoxifies. It is used for wind-heat colds, headaches and dizziness, red and swollen eyes, blurred vision, sores and carbuncle swelling. Prunella vulgaris clears the liver and purges fire, improves eyesight, dissipates lumps and reduces swelling. It is used for red and swollen eyes, night pain in the eyeballs, headaches and dizziness. The formula of Shihu Yeguang Pills contains ginseng, schisandra, wolfberry, chrysanthemum and other medicinal materials, which are used for liver and kidney deficiency, yin deficiency and hyperactivity of fire, cataracts, dark eyes, and blurred vision. Qiju Runmu Granules contain schisandra, wolfberry, chrysanthemum and other medicinal materials, which have the effects of nourishing yin and reducing fire, replenishing essence and blood, and are used for dry eyes and sore eyeballs caused by yin deficiency and hyperactivity of fire in adolescents. Lycium barbarum, chrysanthemum and other medicinal materials are well-known eye protection Chinese medicines, often brewed into tea for drinking.

[0005] By utilizing the eyesight-improving effect of ginseng and compounding it with functional Chinese medicine, a ready-to-eat ginseng product for maintaining vision can be developed specifically for people with vision problems, which has great market prospects. Summary of the invention

[0006] The invention aims to provide an instant ginseng for maintaining eyesight and a preparation method thereof. The prepared ginseng has the characteristics of maintaining eyesight and having a good taste.

[0007] In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions:

[0008] The invention provides a preparation method of instant ginseng for maintaining eyesight, comprising the steps of cooking ginseng, extracting, filtering, centrifuging and concentrating raspberries, schisandra chinensis, mulberries, wolfberries, chrysanthemums and selfheal, adjusting the gel and seasoning with carrageenan and fructose syrup, packaging the ginseng soaking liquid and sterilizing.

[0009] Preferably, the raw materials include the following ingredients in parts by weight: 5-10 parts by weight of fresh ginseng, 6-12 parts by weight of raspberry, 2-6 parts by weight of schisandra chinensis, 6-12 parts by weight of wolfberry, 9-15 parts by weight of mulberry, 5-10 parts by weight of chrysanthemum, 9-15 parts by weight of selfheal, 0.2-1 parts by weight of carrageenan, 2-5 parts by weight of fructose syrup, and an appropriate amount of purified water.

[0010] Preferably, during the ginseng cooking process, the fresh ginseng is steamed in an electric heating steamer at a temperature of 100 to 120° C. for 1.5 to 3 hours to obtain softened cooked ginseng.

[0011] Preferably, the extraction equipment is a decoction machine / pot, and the extraction time is 30 to 60 minutes.

[0012] Preferably, the medicinal material is extracted 1 to 2 times and the amount of water added is 3 to 5 times.

[0013] Preferably, filtering is performed with a filter cloth of 100 to 200 meshes.

[0014] Preferably, in the centrifugation step, the centrifugal speed is 3000-5000 r / min, the centrifugal time is 5-10 min, and a supernatant is obtained.

[0015] Preferably, in the concentration step, the supernatant after centrifugation is concentrated to a relative density of 1.1 to 1.2 at 80°C.

[0016] Preferably, the carrageenan is dissolved in fructose syrup, combined with the medicinal material refined solution, and concentrated to a relative density of 1.25 to 1.35 to obtain an impregnation solution.

[0017] Preferably, the ginseng infusion liquid is filled while hot, the packaging material is food-grade PP material, and the bag is sealed to form a finished product of one ginseng per bag.

[0018] Preferably, the sterilization method is high-pressure steam sterilization at a temperature of 115 to 121° C. and a sterilization time of 15 to 30 minutes.

[0019] The present invention also provides the instant ginseng for maintaining eyesight obtained by the preparation method.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The invention provides a method for preparing instant ginseng for maintaining vision. Fresh ginseng is used as the main body and is soaked in a Chinese medicine composition soaking liquid such as raspberry, schisandra, wolfberry, mulberry, chrysanthemum, and selfheal. The preparation method includes the preparation of cooked ginseng, extraction, filtration, centrifugation, concentration, gel adjustment and seasoning, packaging, and sterilization of raspberry, schisandra, wolfberry, mulberry, chrysanthemum, and selfheal to obtain instant ginseng for maintaining vision. The invention uses ginseng as the main medicine for greatly replenishing vital energy, tonifying the spleen and lungs, promoting fluid and nourishing blood, and calming the mind and improving intelligence; raspberry, wolfberry, and mulberry are used as the minister medicine for replenishing liver and kidney, nourishing liver and improving eyesight; chrysanthemum is used as the adjuvant medicine for dispersing wind and clearing heat, calming the liver and improving eyesight; selfheal is used as the adjuvant medicine for clearing liver and purging fire; schisandra is used as the guiding medicine for replenishing qi and promoting fluid, tonifying kidney and calming the mind; and all the medicines are used together to have the effect of maintaining vision. The invention uses fructose syrup as a sweetener to neutralize the bitterness of ginseng and the soaking liquid. Carrageenan is added to the formula to solidify the soaking liquid for easy consumption. Steaming ginseng can sterilize and soften fresh ginseng, making it easier to chew. It also reduces the dryness of ginseng, retaining its original state. When combined with traditional Chinese medicine that is both a medicine and food for vision care, it also strengthens the effect of improving eyesight, achieving the effect of vision care. DETAILED DESCRIPTION

[0022] The invention provides a preparation method of instant ginseng for maintaining eyesight. Fresh ginseng is taken as a main body and is immersed in an immersion liquid of a Chinese medicine composition such as raspberry, schisandra, wolfberry, mulberry, chrysanthemum, and selfheal. The preparation method comprises the steps of preparing cooked ginseng, extracting raspberry, schisandra, wolfberry, mulberry, chrysanthemum, and selfheal, filtering, centrifuging, concentrating, adjusting glue and seasoning, packaging, and sterilizing to obtain the instant ginseng for maintaining eyesight.

[0023] The invention uses ginseng as the main medicine for invigorating vital energy, tonifying the spleen and lungs, promoting fluid production and nourishing blood, calming the mind and improving intelligence; raspberry, wolfberry and mulberry as the assistant medicines for invigorating the liver and kidneys, nourishing the liver and improving eyesight; chrysanthemum as the adjuvant medicine for dispersing wind and clearing heat, calming the liver and improving eyesight; and prunella vulgaris as the auxiliary medicine for clearing the liver and purging fire; and schisandra chinensis as the guiding medicine for invigorating qi and promoting fluid production, tonifying the kidney and calming the mind. The combination of the medicines has the effect of invigorating qi and enhancing the effect of protecting eyesight.

[0024] The invention uses fructose syrup as a sweetener to neutralize the bitterness of ginseng and the soaking liquid. Carrageenan is added into the formula to solidify the soaking liquid for easy consumption.

[0025] The ginseng of the present invention is fresh ginseng which comes from Changbai Mountain ginseng.

[0026] The medicinal materials of the present invention, raspberry, schisandra, wolfberry, mulberry, chrysanthemum and selfheal are small fruits or flowers, which are easy to extract and do not need special treatment. The formula weight parts are as follows: 5-10 weight parts of fresh ginseng, 6-12 weight parts of raspberry, 2-6 weight parts of schisandra, 6-12 weight parts of wolfberry, 9-15 weight parts of mulberry, 5-10 weight parts of chrysanthemum, 9-15 weight parts of selfheal, 0.2-1 weight part of carrageenan, 2-5 weight parts of fructose syrup, and an appropriate amount of purified water, more preferably 8 weight parts of fresh ginseng, 8 weight parts of raspberry, 4 weight parts of schisandra, 8 weight parts of wolfberry, 12 weight parts of mulberry, 8 weight parts of chrysanthemum, 12 weight parts of selfheal, 0.5 weight part of carrageenan, 3 weight parts of fructose syrup, and an appropriate amount of purified water.

[0027] In the ginseng cooking process of the present invention, fresh ginseng is steamed in an electric heating steamer at a temperature of 100 to 120° C., more preferably 110° C., for 1.5 to 3 hours, more preferably 2 hours.

[0028] The extraction equipment of the present invention is a decoction machine / pot, and the extraction time is 30 to 60 minutes, more preferably 45 minutes. The medicinal material is fruit or flower, which is easy to extract and does not need to be decocted for a long time.

[0029] The medicinal material of the present invention is extracted 1 to 2 times, more preferably once, and the amount of water added is 3 to 5 times, more preferably 4 times.

[0030] The extract of the present invention is filtered through a filter cloth with 100-200 meshes, more preferably 120 meshes.

[0031] In the centrifugation step of the present invention, the centrifugal speed is 3000-5000 r / min, more preferably 4000 r / min; the centrifugal time is 5-10 min, more preferably 8 min.

[0032] The present invention concentrates the supernatant after centrifugation to a relative density of 1.1 to 1.2 at 80° C., more preferably 1.15.

[0033] In the present invention, carrageenan is preferably dissolved in fructose syrup, and then combined with the medicinal material refined liquid to be concentrated to a relative density of 1.25 to 1.35, more preferably a relative density of 1.3. The medicinal liquid is solidified by adding gelatin for easy consumption.

[0034] The present invention preferably fills the ginseng soaking liquid while it is hot, and the packaging material is food-grade PP material, which is sealed and packaged into finished products with one ginseng per bag.

[0035] The sterilization method of the present invention is high-pressure steam sterilization, the temperature is 115-121° C., more preferably 121° C.; the sterilization time is 15-30 minutes, more preferably 15 minutes.

[0036] The invention retains the original form of ginseng, and compared with ginseng products whose forms are not identifiable, it improves the recognition of consumers for the product.

[0037] The instant ginseng for maintaining eyesight is used for treating liver and kidney deficiency and eye discomfort caused by virtual fire disturbance. One bag is chewed and taken every day, and four weeks is a course of treatment.

[0038] In the present invention, unless otherwise specified, all raw material components are commercially available products well known to those skilled in the art.

[0039] The technical solutions in the present invention will be described clearly and completely below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] Example 1: Preparation of instant ginseng for maintaining eyesight

[0041] (1) Take 8 parts by weight of fresh ginseng. Wash the fresh ginseng with a ginseng washing machine, and steam it in an electric heating steamer at 110°C for 2 hours to obtain softened cooked ginseng.

[0042] (2) Accurately weigh 8 parts by weight of raspberry, 4 parts by weight of Schisandra chinensis, 8 parts by weight of wolfberry, 12 parts by weight of mulberry, 8 parts by weight of chrysanthemum, and 12 parts by weight of Prunella vulgaris, add 4 times the amount of purified water, and boil for 45 minutes. Filter through a 120-mesh filter cloth, centrifuge at 4000 r / min for 8 minutes, and concentrate to a relative density of 1.15 at 80°C.

[0043] (3) 0.5 parts by weight of carrageenan was dissolved in 3 parts by weight of fructose-glucose syrup, combined with the medicinal material refined solution, and concentrated to a relative density of 1.3 to obtain an impregnation solution.

[0044] (4) Fill the ginseng soaking liquid while it is hot, use food-grade PP packaging material, seal it, and package it into a finished product of one ginseng per bag.

[0045] (5) sterilizing by high pressure steam at a temperature of 121° C. for 15 min to obtain an edible ginseng for maintaining vision.

[0046] Example 2: Preparation of instant ginseng for maintaining eyesight

[0047] (1) Take 10 parts by weight of fresh ginseng. Wash the fresh ginseng with a ginseng washing machine, and steam it in an electric heating steamer at 100°C for 3 hours to obtain softened cooked ginseng.

[0048] (2) Accurately weigh 12 parts by weight of raspberry, 6 parts by weight of Schisandra chinensis, 12 parts by weight of wolfberry, 15 parts by weight of mulberry, 10 parts by weight of chrysanthemum, and 15 parts by weight of Prunella vulgaris, add 5 times the amount of purified water, and boil for 60 minutes. Filter through a 200-mesh filter cloth, centrifuge at 5000 r / min for 10 minutes, and concentrate to a relative density of 1.2 at 80°C.

[0049] (3) Dissolve 1 part by weight of carrageenan in 5 parts by weight of fructose syrup, combine with the medicinal material refined liquid, and concentrate to a relative density of 1.35 to obtain an impregnation liquid.

[0050] (4) Fill the ginseng soaking liquid while it is hot, use food-grade PP packaging material, seal it, and package it into a finished product of one ginseng per bag.

[0051] (5) sterilizing by high pressure steam at a temperature of 118° C. for 20 min to obtain the vision-maintaining instant ginseng.

[0052] Comparative Example 1

[0053] The specific implementation method is the same as that of Example 1, except that only ginseng is included in the formula;

[0054] Comparative Example 2

[0055] The specific implementation method is the same as that of Example 1, except that there is no ginseng in the formula;

[0056] Functional Verification

[0057] 1. Human test: 100 subjects were selected, all of whom stayed up late for a long time and frequently used electronic terminals. Among them, 54 were male and 46 were female, aged 25-55 years old. The symptoms were dry eyes, blurred vision, conjunctival congestion, increased secretions, and burning sensation in the eyeballs. The consumption was 1 stick / day, and the trial lasted for 28 days. The functions are shown in Table 1:

[0058] Table 1 Efficacy data of instant ginseng in the embodiment and the comparative example

[0059]

[0060] Note: Effective means that the symptoms disappear or are alleviated.

[0061] Compared with the comparative example, Example 1 and Example 2 have higher effective rates, both above 50%, indicating that Example 1 and Example 2 have obvious effects on maintaining vision, and also indicating that ginseng combined with other components in the formula plays a synergistic role.

[0062] 2. Animal Experiments

[0063] 2.1 Grouping and administration: 60 SPF Kunming mice, female, weighing 18-22g, were adaptively fed for 7 days. Modeling was performed except for the blank group, and the mice were divided into a blank group (normal saline 20ml / kg), a model group (normal saline 20ml / kg), an embodiment 1 group (1.96g / kg), a comparative example 1 group (0.74g / kg), and a comparative example 2 group (1.74g / kg). After the model was replicated, each group was gavaged with the corresponding drug once a day for 4 consecutive weeks, and the gavage volume was 20mL / kg. At the same time, except for the blank group, the remaining groups of mice continued to be dripped with benzalkonium chloride solution until the end of the administration.

[0064] 2.2 Modeling: Except for the blank control group, mice in other groups were given benzalkonium chloride solution in both eyes to replicate the dry eye mouse model. The concentration of benzalkonium chloride was 0.2%, 5 μL was dropped into each eye, once a day for 6 consecutive weeks, so as to prepare the dry eye mouse model.

[0065] 2.3 Testing of tear quality

[0066] Tear secretion detection Before and after drug administration, the tear secretion of mice in each group was measured by the tear determination filter paper method, and the wet length of the tear determination test paper was recorded for statistical analysis.

[0067] Determination of tear film breakup time Before and after administration, the tear film breakup time of mice in each group was observed by fluorescein staining, and recorded and statistically analyzed.

[0068] 2.4 Serum tumor necrosis factor-α (TNF-α) level

[0069] 30 minutes after the last administration, the eyeballs were removed and blood was collected. The blood was centrifuged at 3000 r / min for 30 minutes, and the upper serum was collected to determine the TNF-α level in the serum, which was recorded and statistically analyzed.

[0070] Table 2 Tear secretion test results of mice in each group before and after administration

[0071]

[0072] Note: Compared with the blank group, **P<0.01; compared with the model control group, ## P<0.01, # P<0.05.

[0073] After 6 weeks of benzalkonium chloride eye drops, before administration, the wet length of the tear test filter paper of the 4 groups of mice for model replication was significantly reduced compared with the blank group (P < 0.01); there was no statistical difference between the 4 groups of mice for model replication (P> 0.05). After administration, compared with the model group, the wet length of the tear test filter paper of the mice in each intervention group increased to varying degrees (P < 0.01, P < 0.05). It can be seen from the tear secretion results of Example 1, Comparative Example 1, and Comparative Example 2 after administration that the combination of ginseng and other components in the formula plays a synergistic role.

[0074] Table 3 Tear film breakup time test results of each group of mice before and after administration

[0075]

[0076] Note: Compared with the blank group, **P<0.01; compared with the model control group, ## P<0.01, # P<0.05.

[0077] Before administration, compared with the blank group, the tear film breakup time of the 4 groups of mice in the model replication was significantly shortened (P < 0.01). After administration, compared with the model group, the tear film breakup time of the mice in each drug intervention group increased to varying degrees (P < 0.01, P < 0.05). It can be seen from the tear film breakup time of Example 1, Comparative Example 1, and Comparative Example 2 after administration that the combination of ginseng and other components in the formula plays a synergistic role.

[0078] The results showed that the instant ginseng for maintaining vision can increase the tear secretion of dry eye model mice and prolong the tear film breakup time of dry eye model mice. This shows that the instant ginseng for maintaining vision has a relatively ideal intervention effect on dry eye model mice.

[0079] Table 4 TNF-α levels in serum of mice in each group

[0080] Group Dosage (g / kg) TNF-α(ng / L) Blank Group - 120.236±21.387 Model Group - 153.776±19.752** Example 1 Group 1.96 <![CDATA[101.287±22.376 ## ]]> Comparative Example 1 0.74 <![CDATA[128.637±20.768 # ]]> Comparative Example 2 1.74 <![CDATA[122.444±22.684 # ]]>

[0081] Note: Compared with the blank group, **P<0.01; compared with the model control group, ## P<0.01, # P<0.05.

[0082] Compared with the blank group, the expression level of TNF-α in the serum of the model group mice was significantly increased (P < 0.01); compared with the model group, the expression level of TNF-α in each drug intervention group was significantly decreased (P < 0.01, P < 0.05). From the TNF-α levels in the serum of Example 1, Comparative Example 1, and Comparative Example 2 groups, it can be seen that the combination of ginseng and other components in the formula plays a synergistic role.

[0083] Inflammatory response plays an extremely important role in the occurrence of dry eye. A variety of inflammatory cytokines regulate the secretion of tears by downregulating the release of neurotransmitters, causing dry eyes. Studies have found that instant ginseng can reduce the level of inflammatory factor TNF-α in dry eye model mice and has a good effect in resisting eye inflammation.

Claims

1. An instant ginseng for maintaining eyesight and a preparation method thereof, characterized in that: The method includes cooking ginseng, extracting, filtering, centrifuging and concentrating raspberry, schisandra chinensis, mulberry, wolfberry, chrysanthemum and selfheal, adjusting and seasoning with carrageenan and fructose syrup, packaging ginseng infusion liquid and sterilizing.

2. The instant ginseng for maintaining eyesight and the preparation method thereof as claimed in claim 1, characterized in that: The raw materials include the following ingredients in parts by weight: 5-10 parts by weight of fresh ginseng, 6-12 parts by weight of raspberry, 2-6 parts by weight of schisandra chinensis, 6-12 parts by weight of wolfberry, 9-15 parts by weight of mulberry, 5-10 parts by weight of chrysanthemum, 9-15 parts by weight of selfheal, 0.2-1 parts by weight of carrageenan, 2-5 parts by weight of fructose syrup and an appropriate amount of purified water.

3. The instant ginseng for maintaining eyesight and the preparation method thereof as claimed in claim 1, characterized in that: During the ginseng cooking process, fresh ginseng is steamed in an electric heating steamer at a temperature of 100 to 120°C for 1.5 to 3 hours to obtain softened cooked ginseng.

4. The instant ginseng for maintaining eyesight and the preparation method thereof as claimed in claim 1, characterized in that: The extraction equipment is a decoction machine / pot, and the extraction time is 30 to 60 minutes.

5. The instant ginseng for maintaining eyesight and the preparation method thereof as claimed in claims 1 to 2, characterized in that: Extract the medicinal materials 1 to 2 times, adding 3 to 5 times the amount of water.

6. The instant ginseng for maintaining eyesight and the preparation method thereof as claimed in claim 1, characterized in that: Filter through 100-200 mesh filter cloth.

7. The instant ginseng for maintaining eyesight and the preparation method thereof as claimed in claim 1, characterized in that: In the centrifugation step, the centrifugal speed is 3000-5000 r / min, the centrifugal time is 5-10 min, and the supernatant is obtained.

8. The instant ginseng for maintaining eyesight and the preparation method thereof as claimed in claim 1, characterized in that: In the concentration and preparation step, the supernatant after centrifugation is concentrated to a relative density of 1.1 to 1.2 at 80°C, carrageenan is dissolved in fructose syrup, combined with the medicinal material refined liquid, and concentrated to a relative density of 1.25 to 1.35 to obtain an impregnation solution.

9. The instant ginseng for maintaining eyesight and the preparation method thereof as claimed in claim 1, characterized in that: The ginseng soaking liquid is filled while hot, the packaging material is food-grade PP material, and the bag is sealed to form a finished product of 1 ginseng per bag.

10. The instant ginseng for maintaining eyesight and the preparation method thereof as claimed in claim 1, characterized in that: The sterilization method is high-pressure steam sterilization at a temperature of 115 to 121°C and a sterilization time of 15 to 30 minutes.

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