CN114403267A - Strawberry tea active powder and solid beverage thereof - Google Patents
Strawberry tea active powder and solid beverage thereof Download PDFInfo
- Publication number
- CN114403267A CN114403267A CN202210081980.7A CN202210081980A CN114403267A CN 114403267 A CN114403267 A CN 114403267A CN 202210081980 A CN202210081980 A CN 202210081980A CN 114403267 A CN114403267 A CN 114403267A
- Authority
- CN
- China
- Prior art keywords
- dihydromyricetin
- tea
- active powder
- materials
- granulator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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Images
Classifications
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- A23V2002/00—Food compositions, function of food ingredients or processes for food or foodstuffs
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Abstract
A preparation process of the raspberry tea active powder comprises the steps of improving dihydromyricetin in the raspberry tea through a wet fermentation process of eurotium cristatum in the raspberry tea, carrying out embedding treatment by using beta-glucan after the dihydromyricetin extracted from the raspberry tea and soybean phospholipids form phospholipid complexes, and obtaining the raspberry tea active powder.
Description
Technical Field
The invention relates to the technical field of food production, in particular to a strawberry tea active powder and a solid beverage thereof.
Background
The strawberry tea is commonly called vine tea and nectar tea, also called Tujia Shen tea and Shenxiancao, and the pharmaceutical name of the strawberry tea is the ampelopsis grossedentata which is a perennial vine plant and can be used as medicine and drink. The health-care strawberry tea is definitely recorded in pharmacopoeias such as Suoyou Bencao, national Chinese herbal medicine compilation and the like, the color of the strawberry tea is green, the strawberry tea has a white frost effect, the drinking effect has an obvious health-care treatment effect, the strawberry tea is rich in tannin, total flavone, dihydromyricetin, 17 amino acids and 14 trace elements such as calcium, copper, potassium, sodium and the like, wherein the content of the total flavone is 7.5-8.3%, and the health-care strawberry tea has the effects of removing free radicals, resisting oxidation, thrombus, resisting tumors, diminishing inflammation and the like.
Dihydromyricetin is a flavonoid compound beneficial to human body, is extracted from Ampelopsis grossedentata (lour.) Merr of Vitis, and is the main active ingredient of Ampelopsis grossedentata. According to the existing research, the dihydromyricetin has multiple effects of protecting liver, resisting bacteria, regulating blood sugar and blood fat, resisting oxidation, resisting tumors and the like, the liver protection effect is particularly remarkable, the dihydromyricetin can accelerate the decomposition of ethanol metabolite acetaldehyde, so that the acetaldehyde is decomposed into non-toxic substances to be discharged out of a body, the damage to liver cells is reduced, and the effects of dispelling the effects of alcohol and protecting the liver are achieved.
Dihydromyricetin has oxidability and can be easily reduced into myricetin. The dihydromyricetin as an active ingredient has the characteristic of bitter taste in the mouth and is not favored by the general consumers.
Because dihydromyricetin is difficult to be absorbed orally and has poor fat solubility, the improvement of the fat solubility, the in-vivo absorption, the bioavailability and the like of dihydromyricetin is more and more emphasized.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the raspberry tea active powder, the content of dihydromyricetin in the raspberry tea is improved by wet fermentation of eurotium cristatum on the raspberry tea, after the extracted dihydromyricetin and soybean phospholipid form a phospholipid complex, beta-glucan is used for embedding treatment to obtain the active powder, and the active powder is compounded to obtain a corresponding solid beverage, so that the solid beverage can effectively relieve alcoholism and has the effects of protecting the liver, and the specific scheme is as follows:
a preparation process of the raspberry tea active powder comprises the steps of improving dihydromyricetin in the raspberry tea through a wet fermentation process of eurotium cristatum in the raspberry tea, forming a phospholipid complex by the dihydromyricetin extracted from the raspberry tea and soybean phospholipids, and then carrying out embedding treatment by using beta-glucan to obtain the raspberry tea active powder.
Further, the preparation process comprises the following steps: obtaining strains → wet fermentation → extracting dihydromyricetin → phospholipid compound and embedding → obtaining the active powder of the raspberry tea.
Further, the strain obtaining step specifically comprises: obtaining eurotium cristatum from Fuzhuan tea, domesticating the strain in an environment rich in chlorogenic acid to obtain eurotium cristatum strain tolerant to the chlorogenic acid, inoculating the strain into PDW culture solution, placing the PDW culture solution in a constant-temperature culture shaking table for culture at the temperature of 36 +/-1 ℃ and the rotating speed of 180r/min, and culturing for 3 days to obtain the bacterial solution rich in mycelial balls of the eurotium cristatum.
Further, the wet fermentation specifically comprises the following steps: placing the berry tea leaves in a sterilized container, dropwise adding 20% of eurotium cristatum bacterial liquid for fermentation, wherein the dropwise adding amount is 4% of the total weight of the berry tea leaves, stirring and mixing uniformly to enable the berry tea leaves to fully absorb the bacterial liquid, filtering out the redundant bacterial liquid at the bottom of the tea leaves, and naturally fermenting in an environment with the temperature of 36 ℃ and the humidity of 45%;
when the natural fermentation is carried out to the third day, putting the strawberry tea leaves into a tea dryer for sterilization, setting the conditions to be 50 ℃, returning the strawberry tea leaves into the container for continuous natural fermentation for one hour after the sterilization is finished, and keeping the environmental conditions unchanged;
and when natural fermentation is carried out to the sixth day, drying in a tea dryer at the temperature of 70 ℃ for half an hour, heating to 100 ℃ after the natural fermentation is finished, bagging, sealing and storing after the natural fermentation is finished.
Further, the step of extracting the dihydromyricetin adopts ethanol to extract the dihydromyricetin in the strawberry tea, and the dihydromyricetin with the purity of 95 percent or more is obtained through the step of membrane filtration and crystallization.
Further, the extraction of dihydromyricetin specifically comprises the following steps:
putting 100kg of berry tea, 1100L of ethanol, 10kg of activated carbon and 400kg of purified water into a 1000L reaction kettle in sequence, heating to reflux, keeping the temperature for 3 hours, closing a steam valve, stirring for 30 minutes, discharging, performing suction filtration, washing filter residues by using 20L of ethanol after the suction filtration is finished, recovering the ethanol at normal pressure after the suction filtration is finished, reducing the ethanol flow, recovering the ethanol at reduced pressure until no fraction is produced, cooling by using 4L of cooling water, reducing the temperature to below 10 ℃ by using frozen saline, performing suction filtration, washing once by using 30L of pure water after the suction filtration, performing suction filtration again, drying in an oven at 85 ℃, and obtaining a crude product of the dihydromyricetin after 10 hours;
cleaning a 1000L reaction kettle, sequentially putting 30kg of crude dihydromyricetin, 600kg of purified water and 330L of ethanol 300 and stirring into the reaction kettle, heating to 50-53 ℃, stirring for 30 minutes, putting the solution into a membrane filter for pressure reflux after all substances are dissolved, setting the pressure to be 0.25MPa, sucking the filtered small molecular feed liquid into a recovery pot, recovering the ethanol and the purified water, wherein the recovery amount is 1/3 of volume, when white materials appear on the pot wall, cooling, when the temperature of the recovery pot is reduced to 90 ℃, cooling to below 10 ℃ by using frozen saline water, performing suction filtration and washing by using the purified water to obtain a refined dihydromyricetin;
drying the refined dihydromyricetin product at 80 + -2 deg.C for 12 hr to obtain dihydromyricetin with content of 95% or more.
Further, the phospholipid complex and embedding → the step of obtaining the raspberry tea active powder specifically comprises the following steps: dihydromyricetin and phospholipid 1: 1, adding 5 times of ethanol, stirring for 4 hours, setting the temperature to be 40-50 ℃, placing the mixture in a rotary evaporator for rotary evaporation, setting the temperature to be 40 ℃, obtaining a phospholipid complex after evaporation, adding uniformly mixed beta-glucan and water into the phospholipid complex, wherein the beta-glucan is 20g, the water is 100mL, evaporating the mixture again, and embedding the mixture to obtain the raspberry tea active powder.
A solid beverage comprising the berry tea active powder, the solid beverage comprising three formulations,
wherein the first formula comprises 8kg of maltodextrin, 2kg of pachyman, 2kg of beta-glucan, 2kg of dihydromyricetin, 1kg of chlorogenic acid, 50g of mogroside and vitamin C20 g;
the second formula comprises 10kg of polydextrose, 1kg of potassium citrate, 2kg of dihydromyricetin, 2kg of 25% chlorogenic acid and 5kg of poria cocos powder;
the third formula comprises 1.5kg of potassium citrate, 800g of citric acid, 2kg of dihydromyricetin, 433.3g of stevioside, 3kg of maltitol, 2kg of soybean polysaccharide, 200g of tuckahoe powder, 200g of gamma-aminobutyric acid and 100g of vitamin C.
Further, the solid beverage corresponding to the first formula is prepared by boiling granulation, wherein base powder consists of 8kg of maltodextrin, 2kg of pachyman, 2kg of beta-glucan and 2kg of dihydromyricetin, and spray liquid is prepared by mixing and heating 1kg of 20% chlorogenic acid, 50g of mogroside, vitamin C20g and 4kg of pure water;
adding base powder and spray liquid into boiling granulator respectively, wherein the parameters of the boiling granulator are set as material temperature of 50 deg.C, spray speed of 0.5L/min, spray density of 1.2, and fan flow of 80-90m3H, atomizing pressure is 0.1-0.12mpa, drying temperature is 65 ℃, drying time is 60min, air outlet temperature is 40 ℃, bag shaking interval is 1min, and bag shaking time is 10 s;
granulating the granules after boiling granulation by using a granulator, and filling the granulated materials into a sterilized stainless steel container for later use to prevent pollution.
Further, the granulating modes of the solid beverage corresponding to the second formula and the third formula are wet granulating, the re-checked and error-free materials are sequentially put into a granulator, the dry materials are uniformly stirred, then purified water accounting for 10% of the total weight of the formulas is added as a binding agent, the mixture is stirred and granulated, a cover is timely opened to check whether the materials are uniform in particle and moderate in viscosity, the materials are taken out of the granulator when the viscosity of the materials is proper, the materials after the wet granulating are subjected to swing granulating by using a swing granulator, and the mesh number of a screen of the swing granulator is 50 meshes;
the materials after the swing granulation are dried at 70 +/-2 ℃ until the moisture content is 2-4%, when a drying box enters a tray, an upper tray is sequentially moved downwards, when the materials are taken out of the tray, the drying is carried out from bottom to top, the drying condition is observed regularly in the drying process, and the moisture of the materials can be measured regularly by a rapid moisture meter;
and (3) granulating the dried particles by using a granulator, wherein the mesh diameter of a screen of the granulator is 3.3mm, and putting the finished materials into a sterilized stainless steel container for later use to prevent pollution.
Compared with the prior art, the invention has the following beneficial effects:
(1) according to the raspberry tea active powder provided by the invention, the content of dihydromyricetin is increased through wet fermentation of the rubus corchorifolius on the raspberry tea, after the dihydromyricetin obtained through extraction and soybean phospholipid form a phospholipid complex, the beta-glucan is used for embedding treatment to obtain the active powder, and the phospholipid complex is firstly carried out, so that the raspberry tea active powder can improve the bioavailability of the dihydromyricetin to the greatest extent, is convenient to absorb, reduces the bitter taste of the dihydromyricetin and improves the flavor of the dihydromyricetin, and a solid beverage formed by compounding the raspberry tea active powder and other components can also have the effects of effectively dispelling the effects of alcohol, protecting the liver and the like;
(2) compared with unfermented berry tea, the rubus parvifolius fermented tea has strong fungus fragrance, the brewed tea is more fragrant and mellow in taste after being dried, the bitter taste of the rubus parvifolius is greatly improved, and the content of the dihydromyricetin in the rubus parvifolius before and after fermentation is determined by an ultraviolet spectrophotometry method through verification, wherein the content of the dihydromyricetin in the rubus parvifolius before fermentation is 15.85%, the content of the dihydromyricetin after fermentation is 24.25%, and the content of the dihydromyricetin in the rubus parvifolius is greatly improved by about 53% and is about doubled by wet fermentation of the eurotium parvifolius.
(3) The step of extracting the dihydromyricetin is arranged, wherein a crude dihydromyricetin product is extracted firstly by adopting an ethanol extraction mode, and then a fine dihydromyricetin product is extracted, so that the dihydromyricetin with high purity can be obtained.
Drawings
FIG. 1 is a schematic diagram showing the auxiliary effect of the original acquisition of the strain in the present invention;
FIG. 2 is a schematic diagram showing the auxiliary effect of strain acclimation in the present invention;
FIG. 3 is a schematic diagram showing the auxiliary effect of constant temperature shaking table cultivation in the present invention;
FIG. 4 is a schematic diagram showing the auxiliary effect of the bacterial liquid enriched in mycelial pellets of Eurotium cristatum in the present invention;
FIG. 5 is a schematic diagram showing an auxiliary effect of starting wet fermentation of the berry tea by eurotium cristatum liquid in the present invention;
FIG. 6 is a schematic diagram showing the auxiliary effect of drying fermented strawberry tea by a tea dryer according to the present invention;
FIG. 7 is a schematic diagram showing the auxiliary effect of fermented strawberry tea in the present invention;
FIG. 8 is a schematic diagram showing the auxiliary effect of measuring dihydromyricetin by an ultraviolet spectrophotometer in the present invention;
FIG. 9 is a graph showing a standard curve of dihydromyricetin measurement by UV spectrophotometry in accordance with the present invention;
FIG. 10 is a table of data showing the variation of dihydromyricetin in the present invention;
FIG. 11 is a schematic diagram showing the auxiliary effect of mixing dihydromyricetin with phospholipid and stirring with ethanol in the present invention;
FIG. 12 is a schematic view showing the auxiliary effect of starting rotary evaporation by placing on a rotary evaporator in the present invention;
FIG. 13 is a schematic diagram showing the auxiliary effect of the phospholipid complex obtained by evaporation;
FIG. 14 is a schematic diagram showing the auxiliary effect of embedding of β -glucan and phospholipid complex in the present invention;
FIG. 15 is a schematic diagram showing the auxiliary effect of the prepared berry tea active powder in the invention;
FIG. 16 is a diagram showing a process of granulating a solid beverage in example 1 of the present invention;
FIG. 17 is a diagram showing a process of granulating a solid beverage in example 2 of the present invention;
FIG. 18 is a diagram showing a process of granulating a solid beverage in example 3 of the present invention.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited to these examples.
The essence of the preparation process of the active powder of the raspberry tea is that the dihydromyricetin in the raspberry tea is improved by a wet fermentation process of eurotium cristatum in the raspberry tea, after the dihydromyricetin extracted from the raspberry tea and soybean phospholipid form a phospholipid complex, the active powder of the raspberry tea is obtained by embedding treatment by using beta-glucan. Correspondingly, the preparation process comprises the following steps: obtaining strains → wet fermentation → extracting dihydromyricetin → phospholipid compound and embedding → obtaining the active powder of the raspberry tea.
With reference to fig. 1 to fig. 15, in order to further disclose the preparation process of the raspberry tea active powder, the specific contents are as follows:
obtaining strains: obtaining eurotium cristatum from Fuzhuan tea, domesticating the strain in an environment rich in chlorogenic acid to obtain eurotium cristatum strain tolerant to the chlorogenic acid, inoculating the strain into PDW culture solution, placing the PDW culture solution in a constant-temperature culture shaking table for culture at the temperature of 36 +/-1 ℃ and the rotating speed of 180r/min, and culturing for 3 days to obtain the bacterial solution rich in mycelial balls of the eurotium cristatum.
And (3) wet fermentation: placing the berry tea leaves in a sterilized container, dropwise adding 20% of eurotium cristatum bacterial liquid for fermentation, wherein the dropwise adding amount is 4% of the total weight of the berry tea leaves, stirring and mixing uniformly to enable the berry tea leaves to fully absorb the bacterial liquid, filtering out the redundant bacterial liquid at the bottom of the tea leaves, and naturally fermenting in an environment with the temperature of 36 ℃ and the humidity of 45%;
when the natural fermentation is carried out to the third day, putting the strawberry tea leaves into a tea dryer for sterilization, setting the conditions to be 50 ℃, returning the strawberry tea leaves into the container for continuous natural fermentation for one hour after the sterilization is finished, and keeping the environmental conditions unchanged;
and when natural fermentation is carried out to the sixth day, drying in a tea dryer at the temperature of 70 ℃ for half an hour, heating to 100 ℃ after the natural fermentation is finished, bagging, sealing and storing after the natural fermentation is finished.
The extraction step of the dihydromyricetin adopts ethanol to extract the dihydromyricetin in the strawberry tea, and the dihydromyricetin with the purity of 95 percent or more is obtained through the step of membrane filtration and crystallization, and specifically comprises the following steps:
putting 100kg of berry tea, 1100L of ethanol 1000-;
cleaning a 1000L reaction kettle, sequentially putting 30kg of crude dihydromyricetin, 600kg of purified water and 330L of ethanol 300 and stirring into the reaction kettle, heating to 50-53 ℃, stirring for 30 minutes, putting the solution into a membrane filter for pressure reflux after all substances are dissolved, setting the pressure to be 0.25MPa, sucking the filtered small molecular feed liquid into a recovery pot, recovering the ethanol and the purified water, wherein the recovery amount is 1/3 of volume, when white materials appear on the pot wall, cooling, when the temperature of the recovery pot is reduced to 90 ℃, cooling to below 10 ℃ by using frozen saline water, performing suction filtration and washing by using the purified water to obtain a refined dihydromyricetin;
drying the refined dihydromyricetin product at 80 + -2 deg.C for 12 hr to obtain dihydromyricetin with content of 95% or more.
Phospholipid complex and embedding → obtaining the raspberry tea active powder: dihydromyricetin and phospholipid 1: 1, adding 5 times of ethanol, stirring for 4 hours at the temperature of 40-50 ℃, placing the mixture in a rotary evaporator for rotary evaporation at the temperature of 40 ℃, and obtaining a phospholipid complex after evaporation. And then adding the phospholipid complex into the uniformly mixed beta-glucan and water, wherein the beta-glucan is 20g, and the water is 100mL, evaporating to dryness, and embedding the phospholipid complex by using the beta-glucan to obtain the raspberry tea active powder.
The invention aims at the active powder of the raspberry tea and also provides a solid beverage containing the active powder of the raspberry tea, and the fixed beverage comprises the following three solid beverages with different formulas.
Example 1
The first formula comprises 8kg of maltodextrin, 2kg of pachyman, 2kg of beta-glucan, 2kg of dihydromyricetin, 1kg of chlorogenic acid, 50g of mogroside and vitamin C20 g.
As shown in fig. 16, the solid beverage corresponding to the first formulation was granulated by boiling granulation, wherein a base powder was composed of 8kg of maltodextrin, 2kg of pachyman, 2kg of β -glucan and 2kg of dihydromyricetin, and a spray solution was prepared by mixing and heating 1kg of 20% chlorogenic acid, 50g of mogroside, vitamin C20g and 4kg of pure water;
adding base powder and spray liquid into boiling granulator respectively, wherein the parameters of the boiling granulator are set as material temperature of 50 deg.C, spray speed of 0.5L/min, spray density of 1.2, and fan flow of 80-90m3H, atomizing pressure is 0.1-0.12mpa, drying temperature is 65 ℃, drying time is 60min, air outlet temperature is 40 ℃, bag shaking interval is 1min, and bag shaking time is 10 s;
the granules after boiling granulation are granulated by using a granulator, and the product collection requirement is that the granules can pass through a No. one sieve of the granulator but can not pass through a No. five sieve. The whole grain materials are put into a sterilized stainless steel container for standby, so that pollution is prevented.
The yield requirement of the tablet granulating process and a calculation formula.
The yield%
In the formula: a-weight of produced particles, kg; b-total weight of materials put in during batching, kg. The yield is controlled to be about 90 percent.
And (5) sizing, subpackaging and externally packaging.
Subpackaging: and (3) packaging the dry-mixed and uniform materials in small bags by using a powder packaging machine, wherein the average packaging amount is not less than 3g, and the single bag is not less than 2.5 g. The transverse sealing temperature is set to be 130-160 ℃, and the longitudinal sealing temperature is set to be 120-150 ℃. The production date is required to be correct and clear, the seal is tight, and no wrinkles exist. The total packaging amount of 3 groups of 10 packages is weighed every 30 minutes and recorded, and meanwhile, the production date or the batch number is checked to be correct and clear, the sealing temperature state is normal, and the seal is tight without air leakage or wrinkles. The total net weight of 10 bags is required to be more than or equal to 30 g.
And (3) outer packaging: and (5) coding the outer box by using a code spraying machine, and rechecking by a special person. The content is required to be accurate and the characters are clear and firm. And filling the small bags into an outer box according to the requirements of the product packaging specification. The required boxing quantity is accurate, and the packaging outer box is folded, flat, stiff and smooth and is not damaged. And printing the production date, the production batch number and the like on the outer box of the product, and rechecking by a special person. The content is required to be accurate and the characters are clear and firm.
And filling into an outer box according to the product boxing requirement. The required packing quantity is accurate, the accessories are complete, and the box sealing is firm.
Example 2
The second formula comprises 10kg of polydextrose, 1kg of potassium citrate, 2kg of dihydromyricetin, 2kg of 25% chlorogenic acid and 5kg of poria cocos powder.
As shown in fig. 17, the solid beverage corresponding to the second formulation is prepared by wet granulation, sequentially adding the re-checked and error-free materials into a granulator, uniformly stirring the dry materials, adding purified water accounting for 10% of the total weight of the formulation as a binder, stirring and granulating, opening a cover at a proper time to check whether the materials are uniform in particle size and moderate in viscosity, taking out the materials from the granulator when the materials are proper in viscosity, and performing swing granulation on the materials subjected to wet granulation by using a swing granulator, wherein the mesh number of a screen of the swing granulator is 50 meshes;
the materials after the swing granulation are dried at 70 +/-2 ℃ until the moisture content is 2% -4%, in order to avoid foreign matter pollution, a drying box is sequentially moved downwards after being moved into a tray, the materials are sequentially moved upwards after being moved out of the tray, the drying condition needs to be observed regularly in the drying process, and the moisture of the materials can be measured regularly by a rapid moisture tester;
and (3) granulating the dried particles by using a granulator, wherein the mesh diameter of a screen of the granulator is 3.3mm, and putting the finished materials into a sterilized stainless steel container for later use to prevent pollution.
Drying process sanitation control points: skip car, baking pan and production environment.
And (5) the quality control requirement of the drying process. The sense organ meets the requirements (self-checking, mutual checking and special checking). No visible foreign impurities exist, and the water content is 2-4%. Note that: after sensory and moisture test reports are obtained, the dry granules can be transferred to the next process.
The yield requirement of the tablet granulating process and a calculation formula.
The yield%
In the formula: a-weight of produced particles, kg; b-total weight of materials put in during batching, kg. The yield is controlled to be 95.0-99.0%.
Example 3
The third formula comprises 1.5kg of potassium citrate, 800g of citric acid, 2kg of dihydromyricetin, 433.3g of stevioside, 3kg of maltitol, 2kg of soybean polysaccharide, 200g of tuckahoe powder, 200g of gamma-aminobutyric acid and 100g of vitamin C.
As shown in fig. 18, the solid beverage corresponding to the third formulation is granulated by a wet method, the re-checked materials are sequentially put into a granulator, the dried materials are uniformly stirred, then purified water accounting for 10% of the total weight of the formulation is added as a binder, the mixture is stirred and granulated, a cover is opened at a proper time to check whether the materials are uniform in particle size and moderate in viscosity, the materials are taken out of the granulator when the viscosity of the materials is proper, the materials after wet granulation are subjected to swing granulation by using a swing granulator, and the mesh number of a screen of the swing granulator is 50 meshes;
the materials after the swing granulation are dried at 70 +/-2 ℃ until the moisture content is 2% -4%, in order to avoid foreign matter pollution, a drying box is sequentially moved downwards after being moved into a tray, the materials are sequentially moved upwards after being moved out of the tray, the drying condition needs to be observed regularly in the drying process, and the moisture of the materials can be measured regularly by a rapid moisture tester;
and (3) granulating the dried particles by using a granulator, wherein the mesh diameter of a screen of the granulator is 3.3mm, and putting the finished materials into a sterilized stainless steel container for later use to prevent pollution.
Drying process sanitation control points: skip car, baking pan and production environment.
And (5) the quality control requirement of the drying process. The sense organ meets the requirements (self-checking, mutual checking and special checking). No visible foreign impurities exist, and the water content is 2-4%. Note that: after sensory and moisture test reports are obtained, the dry granules can be transferred to the next process.
The yield requirement of the tablet granulating process and a calculation formula.
The yield%
In the formula: a-weight of produced particles, kg; b-total weight of materials put in during batching, kg. The yield is controlled to be 95.0-99.0%.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (10)
1. The preparation process of the raspberry tea active powder is characterized in that dihydromyricetin in the raspberry tea is improved through a wet fermentation process of eurotium cristatum in the raspberry tea, after the dihydromyricetin extracted from the raspberry tea and soybean phospholipids form phospholipid complexes, beta-glucan is used for embedding treatment to obtain the raspberry tea active powder.
2. The berry tea active powder according to claim 1, wherein the preparation process comprises the following steps: obtaining strains → wet fermentation → extracting dihydromyricetin → phospholipid compound and embedding → obtaining the active powder of the raspberry tea.
3. The berry tea active powder according to claim 2, wherein the strain is obtained by the following specific steps: obtaining eurotium cristatum from Fuzhuan tea, domesticating the strain in an environment rich in chlorogenic acid to obtain eurotium cristatum strain tolerant to the chlorogenic acid, inoculating the strain into PDW culture solution, placing the PDW culture solution in a constant-temperature culture shaking table for culture at the temperature of 36 +/-1 ℃ and the rotating speed of 180r/min, and culturing for 3 days to obtain the bacterial solution rich in mycelial balls of the eurotium cristatum.
4. The berry tea active powder according to claim 2, wherein the wet fermentation specifically comprises the following steps: placing the berry tea leaves in a sterilized container, dropwise adding 20% of eurotium cristatum bacterial liquid for fermentation, wherein the dropwise adding amount is 4% of the total weight of the berry tea leaves, stirring and mixing uniformly to enable the berry tea leaves to fully absorb the bacterial liquid, filtering out the redundant bacterial liquid at the bottom of the tea leaves, and naturally fermenting in an environment with the temperature of 36 ℃ and the humidity of 45%;
when the natural fermentation is carried out to the third day, putting the strawberry tea leaves into a tea dryer for sterilization, setting the conditions to be 50 ℃, returning the strawberry tea leaves into the container for continuous natural fermentation for one hour after the sterilization is finished, and keeping the environmental conditions unchanged;
and when natural fermentation is carried out to the sixth day, drying in a tea dryer at the temperature of 70 ℃ for half an hour, heating to 100 ℃ after the natural fermentation is finished, bagging, sealing and storing after the natural fermentation is finished.
5. The berry tea active powder according to claim 2, wherein the dihydromyricetin extraction step adopts ethanol to extract dihydromyricetin in the berry tea, and the dihydromyricetin with purity of 95% or more is obtained through the membrane filtration and crystallization step.
6. The berry tea active powder according to claim 5, wherein the extraction of the dihydromyricetin specifically comprises the following steps:
putting 100kg of berry tea, 1100L of ethanol, 10kg of activated carbon and 400kg of purified water into a 1000L reaction kettle in sequence, heating to reflux, keeping the temperature for 3 hours, closing a steam valve, stirring for 30 minutes, discharging, performing suction filtration, washing filter residues by using 20L of ethanol after the suction filtration is finished, recovering the ethanol at normal pressure after the suction filtration is finished, reducing the ethanol flow, recovering the ethanol at reduced pressure until no fraction is produced, cooling by using 4L of cooling water, reducing the temperature to below 10 ℃ by using frozen saline, performing suction filtration, washing once by using 30L of pure water after the suction filtration, performing suction filtration again, drying in an oven at 85 ℃, and obtaining a crude product of the dihydromyricetin after 10 hours;
cleaning a 1000L reaction kettle, sequentially putting 30kg of crude dihydromyricetin, 600kg of purified water and 330L of ethanol 300 and stirring into the reaction kettle, heating to 50-53 ℃, stirring for 30 minutes, putting the solution into a membrane filter for pressure reflux after all substances are dissolved, setting the pressure to be 0.25MPa, sucking the filtered small molecular feed liquid into a recovery pot, recovering the ethanol and the purified water, wherein the recovery amount is 1/3 of volume, when white materials appear on the pot wall, cooling, when the temperature of the recovery pot is reduced to 90 ℃, cooling to below 10 ℃ by using frozen saline water, performing suction filtration and washing by using the purified water to obtain a refined dihydromyricetin;
drying the refined dihydromyricetin product at 80 + -2 deg.C for 12 hr to obtain dihydromyricetin with content of 95% or more.
7. The berry tea active powder according to claim 2, wherein the phospholipid complex and the embedding → obtaining of the berry tea active powder specifically comprises the following steps: dihydromyricetin and phospholipid 1: 1, adding 5 times of ethanol, stirring for 4 hours, setting the temperature to be 40-50 ℃, placing the mixture in a rotary evaporator for rotary evaporation, setting the temperature to be 40 ℃, obtaining a phospholipid complex after evaporation, adding uniformly mixed beta-glucan and water into the phospholipid complex, wherein the beta-glucan is 20g, the water is 100mL, evaporating the mixture again, and embedding the mixture to obtain the raspberry tea active powder.
8. A solid beverage comprising the berry tea active powder according to any one of claims 1 to 7, wherein the solid beverage comprises three formulations,
wherein the first formula comprises 8kg of maltodextrin, 2kg of pachyman, 2kg of beta-glucan, 2kg of dihydromyricetin, 1kg of chlorogenic acid, 50g of mogroside and vitamin C20 g;
the second formula comprises 10kg of polydextrose, 1kg of potassium citrate, 2kg of dihydromyricetin, 2kg of 25% chlorogenic acid and 5kg of poria cocos powder;
the third formula comprises 1.5kg of potassium citrate, 800g of citric acid, 2kg of dihydromyricetin, 433.3g of stevioside, 3kg of maltitol, 2kg of soybean polysaccharide, 200g of tuckahoe powder, 200g of gamma-aminobutyric acid and 100g of vitamin C.
9. The berry tea active powder and the solid beverage thereof according to claim 8, wherein the solid beverage corresponding to the first formula is prepared by boiling granulation, wherein the base powder comprises 8kg of maltodextrin, 2kg of pachyman, 2kg of beta-glucan and 2kg of dihydromyricetin, and the spray liquid is prepared by mixing and heating 1kg of 20% chlorogenic acid, 50g of mogroside, 20 kg of vitamin C20g and 4kg of pure water;
adding base powder and spray liquid into boiling granulator respectively, setting the parameters of boiling granulator at 50 deg.C, and spraying liquid at a speed of 50 deg.CThe rate is 0.5L/min, the spray density is 1.2, and the flow of the fan is 80-90m3H, atomizing pressure is 0.1-0.12mpa, drying temperature is 65 ℃, drying time is 60min, air outlet temperature is 40 ℃, bag shaking interval is 1min, and bag shaking time is 10 s;
granulating the granules after boiling granulation by using a granulator, and filling the granulated materials into a sterilized stainless steel container for later use to prevent pollution.
10. The berry tea active powder and the solid beverage thereof according to claim 8, wherein the solid beverage corresponding to the second formula and the third formula is prepared by wet granulation, the re-checked materials are sequentially put into a granulator, the dry materials are uniformly stirred, then purified water accounting for 10% of the total formula weight is added as a binding agent, the mixture is stirred and granulated, a cover is opened at proper time to check whether the materials are uniform in particle size, the viscosity is moderate, the materials are taken out of the granulator when the viscosity is proper, the materials after wet granulation are subjected to swing granulation by using a swing granulator, and the mesh number of the swing granulator is 50 meshes;
the materials after the swing granulation are dried at 70 +/-2 ℃ until the moisture content is 2-4%, when a drying box enters a tray, an upper tray is sequentially moved downwards, when the materials are taken out of the tray, the drying is carried out from bottom to top, the drying condition is observed regularly in the drying process, and the moisture of the materials can be measured regularly by a rapid moisture meter;
and (3) granulating the dried particles by using a granulator, wherein the mesh diameter of a screen of the granulator is 3.3mm, and putting the finished materials into a sterilized stainless steel container for later use to prevent pollution.
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Cited By (1)
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| CN114747631A (en) * | 2022-05-24 | 2022-07-15 | 张家界诺康生态茶业有限公司 | Strawberry tea solid beverage and preparation method thereof |
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