Preparation process and quality standard of oolong tea and semen cassiae tea bag

Abstract

The invention relates to the technical field of tea bags and particularly discloses a preparation process and quality standard of an oolong tea and semen cassiae tea bag, and the oolong tea and semen cassiae tea bag comprises the following raw materials in parts by weight: 120-150 parts of semen cassiae, 100 parts of gynostemma pentaphylla, 95-105 parts of rhizoma alismatis, 45-55 parts of lotus leaves, 15-18 parts of folium sennae, 140-160 parts of oolong tea and 20-25 parts of crystalline fructose. The preparation technology of the oolong tea and semen cassiae tea bag comprises the following steps: preparing tea bags; s1, pretreatment; s2, extracting; s3, performing concentration; s4, drying, crushing and sieving; s5, total mixing; s6, performing granulation and performing drying; by optimizing the formula ratio and specifying the complete technological process including irradiation sterilization, gradient extraction, reduced pressure drying, timed total mixing and specific mesh granulation, the controllability and stability of the production process are ensured, and a set of complete and controllable tea bag production and quality control system is established.

Description

Technical Field

[0001] This invention relates to the field of tea bag technology, specifically to a preparation process and quality standard for oolong tea and cassia seed tea bags. Background Technology

[0002] According to the World Health Organization (WHO) standards, a body mass index (BMI) of ≥30 kg / m² is defined as obesity. Obesity not only affects an individual's appearance but is also a significant risk factor for various metabolic diseases such as type II diabetes, hypertension, coronary heart disease, and fatty liver. Currently, weight loss products on the market mainly include health foods, teas, pharmaceuticals, and devices.

[0003] Traditional weight-loss teas are mostly based on Traditional Chinese Medicine (TCM) theory, using plant ingredients with heat-clearing, dampness-removing, laxative, and lipid-lowering effects to promote weight loss through brewing. However, existing weight-loss tea bags generally suffer from insufficient scientific production processes and incomplete quality standards, resulting in unstable efficacy, inadequate uniformity and stability of active ingredients, low quality control levels, and large batch-to-batch variations. Therefore, we propose a preparation process and quality standards for oolong tea and cassia seed tea bags. Summary of the Invention

[0004] The purpose of this invention is to provide a preparation process and quality standard for oolong tea cassia seed tea bags, so as to solve the problem of improving the production process and quality standard of tea bags mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a preparation process for oolong tea and cassia seed tea bags, wherein the oolong tea and cassia seed tea bags are made from raw materials comprising the following weight proportions:

[0006] Cassia seed 120-150 parts, Gynostemma pentaphyllum 100 parts, Alisma plantago-aquatica 95-105 parts, lotus leaf 45-55 parts, senna leaf 15-18 parts, oolong tea 140-160 parts, crystalline fructose 20-25 parts;

[0007] The excipient in this invention is crystalline fructose, which is high in sweetness, has a fruity aroma, low in calories, metabolizes faster than glucose in the body, is easily absorbed and utilized by the body, does not depend on insulin, has little impact on blood sugar, and is suitable for supplementing energy in patients with impaired glucose metabolism and liver function. In the human body, it can promote the growth and reproduction of beneficial bacteria such as Bifidobacteria, inhibit the growth of harmful bacteria, improve gastrointestinal function and metabolism, lower blood lipids, and does not cause tooth decay. It is an ideal sweetener for diabetics, obese patients, and children's foods, and can also improve the taste of this product.

[0008] The preparation process of the oolong tea cassia seed tea bags includes the following steps;

[0009] S1. Pretreatment: Senna leaves and oolong tea60 Co irradiation sterilization;

[0010] S2. Extraction: Weigh the cassia seed, gynostemma pentaphyllum, alisma plantago-aquatica, and lotus leaf, add water and extract twice, then combine the filtrates;

[0011] S3. Concentration: The filtrate is concentrated to a relative density of 1.20–1.25 to obtain a thick extract;

[0012] S4. Drying, pulverizing, and sieving: After the thick extract is dried under reduced pressure, it is pulverized and sieved to obtain dry extract powder;

[0013] For some tea preparations, due to variations in ingredients or quantities, several steps may be combined. The medicinal herbs and tea leaves used in preparing these preparations need to be pulverized to reduce particle size, increase specific surface area, improve extraction speed, and enhance bioavailability; this also helps regulate flowability during packaging. The choice of fineness should be based on the properties of the materials, their effects, and the route of administration. In this product, crystalline fructose and dry extract powder are sieved through a 40-mesh sieve, while senna leaves and oolong tea are pulverized and sieved through a 20-mesh sieve. This meets granulation requirements while preventing excessively fine particles from leaking out of the inner packaging and affecting the clarity of the tea.

[0014] S5. Total Mixing: The pretreated senna leaves and oolong tea are pulverized and sieved. The crystalline fructose is sieved and then mixed with the dry extract powder for 30-40 minutes to obtain the total mixed powder.

[0015] S6. Granulation and Drying: To make soft material, the total mixed powder is made into wet granules, then dried to a moisture content of ≤5%, granulated and packaged.

[0016] The quality standards for the oolong tea and cassia seed tea bags meet the following requirements:

[0017] Total saponin content ≥ 0.5g / 100g;

[0018] The total anthraquinone content is 0.05–0.15 g / 100 g;

[0019] Tea polyphenol content ≥3.0g / 100g;

[0020] Moisture ≤12%;

[0021] Ash content ≤12%.

[0022] Preferably, in step S2, the extraction conditions are:

[0023] The first extraction was done with 10 times the amount of water, and the second extraction was done with 8 times the amount of water. Each extraction lasted 1.5 hours.

[0024] After filtering the extract through a 200-mesh sieve, refrigerate and let it stand for 18–24 hours, then collect the supernatant and concentrate it.

[0025] Preferably, in step S3, the reduced pressure drying conditions are as follows:

[0026] Temperature 55~75℃, vacuum degree 0.07~0.08MPa, moisture content of dry ointment controlled at 4%~5%.

[0027] Preferably, in step S4, the mixing time is determined by detecting the total saponin content;

[0028] The total saponin content is calculated as ginsenosides.

[0029] Preferably, in step S5, both the wet granules and the granules are made using a 14-mesh sieve.

[0030] Preferably, in step S5, the drying process temperature is controlled at 60-70°C, and the particle moisture content is monitored in real time to ensure that the final product moisture content is ≤5%.

[0031] Preferably, each tea bag contains 2.5g and is wrapped in tea filter paper inside and a pharmaceutical composite film outside.

[0032] A quality standard for oolong tea bags containing cassia seeds also includes:

[0033] Lead ≤ 5.0 mg / kg;

[0034] Total arsenic ≤1.0 mg / kg;

[0035] Total mercury ≤ 0.3 mg / kg;

[0036] HCH ≤ 0.2 mg / kg;

[0037] DDT ≤0.2mg / kg.

[0038] Preferably, the quality standards for the oolong tea cassia seed tea bags also include:

[0039] Total bacterial count ≤30000 CFU / g;

[0040] Escherichia coli ≤0.92 MPN / g;

[0041] Mold and yeast ≤50 CFU / g;

[0042] Salmonella must not be detected;

[0043] Staphylococcus aureus must not be detected.

[0044] This invention has at least the following beneficial effects:

[0045] 1. This invention optimizes the formulation and specifies a complete process flow including irradiation sterilization, gradient extraction, vacuum drying, timed total mixing, and granulation to a specific mesh size, ensuring the controllability and stability of the production process.

[0046] 2. This invention clearly defines the content of key active ingredients and strictly complies with multiple safety and physicochemical indicators such as moisture, ash, heavy metals, pesticide residues, and microorganisms, thus achieving uniform product quality and reliable safety and efficacy.

[0047] 3. This invention uses cassia seeds, oolong tea, and gynostemma pentaphyllum as raw materials to establish a complete and controllable tea bag production and quality control system, which can stably produce safe and effective health food suitable for people with simple obesity. Detailed Implementation

[0048] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0049] Example 1

[0050] Ingredients: Weigh out 3375g of cassia seeds, 2500g of gynostemma pentaphyllum, 2500g of alisma plantago-aquatica, 1250g of lotus leaves, 400g of senna leaves, 3825g of oolong tea, and 575g of crystalline fructose. This will make approximately 2500 tea bags (2.5g per bag).

[0051] Production process description

[0052] Inspection of raw and auxiliary materials:

[0053] 1. The raw materials must be of excellent quality and hygienic, and must not be contaminated by pesticides, chemicals, harmful metals and radioactive substances, nor contain toxins that are harmful to the human body.

[0054] 2. The procurement of raw and auxiliary materials shall strictly comply with relevant standards and shall be accompanied by product inspection certificates from the place of procurement or place of origin.

[0055] 3. The production workshop reviews the quality inspection reports of all raw and auxiliary materials, and only those that meet the quality requirements can be used for production.

[0056] Preparation process: S1, Pretreatment: Verify material code, name, specifications, serial number, etc. Senna leaves and oolong tea are irradiated with cobalt-60 at a dose of 6 kGy.

[0057] S2. Extraction: Weigh out the cassia seeds, gynostemma pentaphyllum, alisma plantago-aquatica, and lotus leaves according to the formula, place them in an extraction tank, and extract twice by heating. For the first extraction, add 10 times the amount of water, heat and reflux for 1.5 hours, and filter. For the second extraction, add 8 times the amount of water, heat and reflux for 1.5 hours, and filter. Combine the two extracts, filter through a 200-mesh sieve, and refrigerate the filtrate at 4℃ for 20 hours.

[0058] S3. Concentration: Place the supernatant in a concentration tank and concentrate it at 65~75℃ and a vacuum of 0.06~0.08Mpa until the relative density is 1.22 (measured at 60℃) to obtain a thick extract.

[0059] S4. Drying, pulverizing, and sieving: Transfer the thick extract to a vacuum drying oven and dry under reduced pressure at 60℃ and 0.075MPa until the moisture content is 4.5%, obtaining a dry extract. The dried extract block is pulverized by a pulverizer and sieved through a 40-mesh sieve to obtain a dry extract powder for later use.

[0060] S5. Total Mixing: Weigh out senna leaves and oolong tea according to the formula. Crush the irradiated senna leaves and oolong tea separately and pass them through a 20-mesh sieve. Pass the crystalline fructose through a 40-mesh sieve. Put the dry powder, senna leaf powder, oolong tea powder and crystalline fructose powder into a trough mixer and mix for 30 minutes to obtain the total mixed powder.

[0061] S6. Prepare the soft material: Take an appropriate amount of 50% ethanol and spray it into the total mixed powder to prepare the soft material for later use. The soft material should be able to be formed into a ball when pinched, but crumble when kneaded.

[0062] S7. Granulation: Put the soft material into the granulator and pass it through a 14-mesh sieve to make wet granules for later use.

[0063] S8. Drying: Spread the wet granules evenly on a drying tray and place them in a hot air circulating oven at 65°C. Monitor the moisture content regularly during the drying process until the moisture content of the granules is ≤5%, thus obtaining dry granules.

[0064] S9. Granulation: The dried granules are granulated again through a 14-mesh sieve to break up any small lumps and obtain uniform granules.

[0065] S10. Packaging: The inner packaging uses an automatic tea bag packaging machine to dispense the granules into non-heat-sealed tea filter paper bags, with each bag containing 2.5g. The weight variation between bags is checked during dispensing. A composite film of tea bag filter paper and pharmaceutical packaging is used for dispensing. Packaging materials should comply with GB / T 25436+YBB00172002. The outer packaging is sealed with a polyester / aluminum / polyethylene composite film. After passing inspection, the finished product enters the qualified product area of ​​the warehouse.

[0066] Example 2

[0067] Ingredients: Weigh out 3375g of cassia seeds, 2500g of gynostemma pentaphyllum, 2500g of alisma plantago-aquatica, 1250g of lotus leaves, 400g of senna leaves, 3825g of oolong tea, and 575g of crystalline fructose. This will make approximately 2500 tea bags (2.5g per bag).

[0068] Production process description

[0069] Inspection of raw and auxiliary materials:

[0070] 1. The raw materials must be of excellent quality and hygienic, and must not be contaminated by pesticides, chemicals, harmful metals and radioactive substances, nor contain toxins that are harmful to the human body.

[0071] 2. The procurement of raw and auxiliary materials shall strictly comply with relevant standards and shall be accompanied by product inspection certificates from the place of procurement or place of origin.

[0072] 3. The production workshop reviews the quality inspection reports of all raw and auxiliary materials, and only those that meet the quality requirements can be used for production.

[0073] Preparation process: S1, Pretreatment: Verify material code, name, specifications, serial number, etc. Senna leaves and oolong tea are irradiated with cobalt-60 at a dose of 6 kGy.

[0074] S2. Extraction: Weigh out the cassia seeds, gynostemma pentaphyllum, alisma plantago-aquatica, and lotus leaves according to the formula, place them in an extraction tank, and extract twice by heating. For the first extraction, add 10 times the amount of water, heat and reflux for 1.5 hours, and filter. For the second extraction, add 8 times the amount of water, heat and reflux for 1.5 hours, and filter. Combine the two extracts, filter through a 200-mesh sieve, and refrigerate the filtrate at 4℃ for 20 hours.

[0075] S3. Concentration: Place the supernatant in a concentration tank and concentrate it at 65~75℃ and a vacuum of 0.06~0.08Mpa until the relative density is 1.22 (measured at 60℃) to obtain a thick extract.

[0076] S4. Drying, pulverizing, and sieving: Transfer the thick extract to a vacuum drying oven and dry under reduced pressure at 60℃ and 0.075MPa until the moisture content is 4.5%, obtaining a dry extract. The dried extract block is pulverized by a pulverizer and sieved through a 40-mesh sieve to obtain a dry extract powder for later use.

[0077] S5. Total Mixing: Weigh out senna leaves and oolong tea according to the formula. Crush the irradiated senna leaves and oolong tea separately and pass them through a 20-mesh sieve. Pass the crystalline fructose through a 40-mesh sieve. Put the dry powder, senna leaf powder, oolong tea powder and crystalline fructose powder into a trough mixer and mix for 40 minutes to obtain the total mixed powder.

[0078] S6. Prepare the soft material: Take an appropriate amount of 50% ethanol and spray it into the total mixed powder to prepare the soft material for later use. The soft material should be able to be formed into a ball when pinched, but crumble when kneaded.

[0079] S7. Granulation: Put the soft material into the granulator and pass it through a 14-mesh sieve to make wet granules for later use.

[0080] S8. Drying: Spread the wet granules evenly on a drying tray and place them in a hot air circulating oven at 65°C. Monitor the moisture content regularly during the drying process until the moisture content of the granules is ≤5%, thus obtaining dry granules.

[0081] S9. Granulation: The dried granules are granulated again through a 14-mesh sieve to break up any small lumps and obtain uniform granules.

[0082] S10. Packaging: The inner packaging uses an automatic tea bag packaging machine to dispense the granules into non-heat-sealed tea filter paper bags, with each bag containing 2.5g. The weight variation between bags is checked during dispensing. A composite film of tea bag filter paper and pharmaceutical packaging is used for dispensing. Packaging materials should comply with GB / T 25436+YBB00172002. The outer packaging is sealed with a polyester / aluminum / polyethylene composite film. After passing inspection, the finished product enters the qualified product area of ​​the warehouse.

[0083] Comparative Example 1

[0084] Ingredients: Weigh out 3375g of cassia seeds, 2500g of gynostemma pentaphyllum, 2500g of alisma plantago-aquatica, 1250g of lotus leaves, 400g of senna leaves, 3825g of oolong tea, and 575g of crystalline fructose. This will make approximately 2500 tea bags (2.5g per bag).

[0085] Preparation process: S1, Pretreatment: Verify material code, name, specifications, serial number, etc. Senna leaves and oolong tea are irradiated with cobalt-60 at a dose of 6 kGy.

[0086] S2. Extraction: Weigh out the cassia seeds, gynostemma pentaphyllum, alisma plantago-aquatica, and lotus leaves according to the formula, place them in an extraction tank, and extract twice by heating. For the first extraction, add 10 times the amount of water, heat and reflux for 1.5 hours, and filter. For the second extraction, add 8 times the amount of water, heat and reflux for 1.5 hours, and filter. Combine the two extracts, filter through a 200-mesh sieve, and refrigerate the filtrate at 4℃ for 20 hours.

[0087] S3. Concentration: Place the supernatant in a concentration tank and concentrate it at 65~75℃ and a vacuum of 0.06~0.08Mpa until the relative density is 1.22 (measured at 60℃) to obtain a thick extract.

[0088] S4. Drying, pulverizing, and sieving: Transfer the thick extract to a vacuum drying oven and dry under reduced pressure at 60℃ and 0.075MPa until the moisture content is 4.5%, obtaining a dry extract. The dried extract block is pulverized by a pulverizer and sieved through a 40-mesh sieve to obtain a dry extract powder for later use.

[0089] S5. Total Mixing: Weigh out senna leaves and oolong tea according to the formula. Crush the irradiated senna leaves and oolong tea separately and pass them through a 20-mesh sieve. Pass the crystalline fructose through a 40-mesh sieve. Put the dry powder, senna leaf powder, oolong tea powder and crystalline fructose powder into a trough mixer and mix for 20 minutes to obtain the total mixed powder.

[0090] S6. Prepare the soft material: Take an appropriate amount of 50% ethanol and spray it into the total mixed powder to prepare the soft material for later use. The soft material should be able to be formed into a ball when pinched, but crumble when kneaded.

[0091] S7. Granulation: Put the soft material into the granulator and pass it through a 14-mesh sieve to make wet granules for later use.

[0092] S8. Drying: Spread the wet granules evenly on a drying tray and place them in a hot air circulating oven at 65°C. Monitor the moisture content regularly during the drying process until the moisture content of the granules is ≤5%, thus obtaining dry granules.

[0093] S9. Granulation: The dried granules are granulated again through a 14-mesh sieve to break up any small lumps and obtain uniform granules.

[0094] S10. Packaging: The inner packaging uses an automatic tea bag packaging machine to dispense the granules into non-heat-sealed tea filter paper bags, with each bag containing 2.5g. The weight variation between bags is checked during dispensing. A composite film of tea bag filter paper and pharmaceutical packaging is used for dispensing. Packaging materials should comply with GB / T 25436+YBB00172002. The outer packaging is sealed with a polyester / aluminum / polyethylene composite film. After passing inspection, the finished product enters the qualified product area of ​​the warehouse.

[0095] Example 3

[0096] The mixing uniformity of the samples prepared in Example 1, Example 2 and Comparative Example 1 was verified. Ten samples were taken at 20, 30 and 40 min of total mixing, respectively, corresponding to Comparative Example 1, Example 1 and Example 2. The content of total saponins (calculated as ginsenoside Re) in the product was determined by colorimetry.

[0097] Analysis steps

[0098] Sample preparation: Grind the sample into a fine powder, accurately weigh an appropriate amount of the sample, place it in a 100 mL volumetric flask, add 50 mL of water, sonicate for 10 min, then dilute to 100 mL with water, shake well, and let stand. Take 1.0 mL of the supernatant for column chromatography.

[0099] Column chromatography: Use a 10 mL syringe as a chromatography tube, filled with 3 cm of macroporous resin AmberLite-XAD-2, and topped with 1 cm of neutral alumina. First, wash the column with 25 mL of 70% ethanol, discarding the eluent. Then, elute the ginsenosides with 25 mL of 70% ethanol, collecting the eluent in an evaporating dish and evaporating it to dryness in a 60°C water bath. This eluent is used for color development.

[0100] Color development: Accurately add 0.2 mL of 5% vanillin glacial acetic acid solution to the evaporated dish, rotate the evaporating dish to dissolve the residue, then add 0.8 mL of perchloric acid, mix well, and transfer to a 5 mL stoppered graduated centrifuge tube. Heat in a 60°C water bath for 10 min, remove, cool in an ice bath, accurately add 5.0 mL of glacial acetic acid, shake well, and perform colorimetric determination at 560 nm wavelength using a 1 cm cuvette, together with the standard tube.

[0101] Standard tube: Pipette 100 μL of ginsenoside Re standard solution into an evaporating dish and evaporate to dryness on a water bath (below 60°C) or with hot air (do not overheat). The following procedures, starting from "column chromatography," are the same as for the sample. Measure the absorbance value.

[0102] The total saponin content in the sample is calculated using the following formula.

[0103]

[0104] In the formula:

[0105] X - Total saponin content in sample X (calculated as ginsenoside Re), g / 100g;

[0106] A1 - Absorbance value of the test liquid;

[0107] A2 - Absorbance value of the standard solution;

[0108] The amount of ginsenoside Re in the C-standard tube, μg;

[0109] V - Sample dilution volume, mL;

[0110] m - Sample mass, g.

[0111] The calculation result should be rounded to two significant figures.

[0112]

[0113] The results are shown in Table 1. The data indicates that the materials were not uniformly mixed after 20 minutes of mixing, but were basically uniformly mixed after 30 minutes and 40 minutes. Considering the processing cycle and cost savings, the mixing time was set at 30 minutes. Subsequent pilot-scale production verified that the raw material powder was uniformly mixed after 30 minutes.

[0114] Example 4

[0115] A quality standard for oolong tea and cassia seed tea bags includes requirements for the quality of raw and auxiliary materials, sensory requirements, physicochemical indicators, microbiological indicators, marker component indicators, and packaging volume variation indicators.

[0116] 1. Quality requirements for raw and auxiliary materials

[0117] Oolong tea (irradiated): shall comply with the provisions of GB / T 30357 "Oolong Tea".

[0118] Cassia seed: should comply with the provisions of the Pharmacopoeia of the People's Republic of China.

[0119] Gynostemma pentaphyllum: should comply with the provisions of the "Guangxi Standards for Traditional Chinese Medicine" (Volume 2).

[0120] Alisma plantago-aquatica: should comply with the provisions of the Pharmacopoeia of the People's Republic of China.

[0121] Lotus leaves: should comply with the provisions of the Pharmacopoeia of the People's Republic of China.

[0122] Senna leaves (irradiated): should comply with the provisions of the Pharmacopoeia of the People's Republic of China.

[0123] Crystalline fructose: It shall comply with the provisions of GB / T 20882.3 "Crystallized fructose and solid fructose".

[0124] 2. Sensory requirements

[0125] It should comply with the provisions of Table 2.

[0126]

[0127] 3. Physicochemical Indicators

[0128] It should comply with the provisions of Table 3.

[0129]

[0130] The method for determining total anthraquinones is as follows:

[0131] Preparation of 1,8-dihydroxyanthraquinone standard solution: Weigh 8 mg of 1,8-dihydroxyanthraquinone, dissolve it in methanol and dilute to 50 mL to obtain a 0.16 mg / mL 1,8-dihydroxyanthraquinone standard solution.

[0132] 1,8-Dihydroxyanthraquinone standard curve: Pipette 0.4, 0.6, 0.8, 1.0, and 1.2 mL of 1,8-dihydroxyanthraquinone standard solution into 10 mL colorimetric tubes, add 0.6% magnesium acetate methanol solution to the mark, shake well, and measure the color at a wavelength of 520 nm.

[0133] Sample preparation: Weigh approximately 2g of the contents of this product accurately and place it in a 100mL Erlenmeyer flask. Accurately add 40mL of chloroform and 15mL of 2.5mol / L sulfuric acid solution. Reflux in a boiling water bath for 2.5h. Remove and allow to cool to room temperature. Separate the chloroform using a separatory funnel and wash twice with chloroform. Combine the chloroform solutions and evaporate to dryness in a water bath. Dissolve the residue in methanol in a 10mL volumetric flask. Take 1mL of the filtrate and place it in a 10mL volumetric flask. Dilute to the mark with 0.6% magnesium acetate methanol solution and shake well. Measure the absorbance of the above solution and standard solution at a wavelength of 520nm.

[0134] Results calculation: The total anthraquinone content in the sample solution is calculated by fitting a regression equation based on the concentration and absorbance of the standard solution, and then calculating the total anthraquinone content in the sample solution based on the absorbance of the sample on the linear equation.

[0135]

[0136] In the formula:

[0137] c - The concentration of the sample solution calculated from the regression curve;

[0138] n - the dilution factor of the sample;

[0139] m - the weight of the sample taken.

[0140] 4. Microbiological indicators

[0141] It should comply with the provisions of Table 4.

[0142]

[0143] 5. Marker component indicators

[0144] It should comply with the provisions of Table 5.

[0145]

[0146] 6. Filling volume variation index

[0147] It should comply with the provisions of "Tea Preparations" under the "General Rules for Preparations" section of the Pharmacopoeia of the People's Republic of China.

[0148] Example 5

[0149] The finished product of Example 1 was inspected according to the standard of Example 4, and the results are as follows:

[0150] Sensory characteristics: brownish-brown particles, slightly fragrant aroma, and slightly sweet taste.

[0151] Key components: Total anthraquinone content is 0.10g / 100g; tea polyphenol content is 3.5g / 100g.

[0152] Physicochemical indicators: Moisture content was 4.8%; Ash content was 8.2%; Lead, total arsenic, total mercury, hexachlorocyclohexane (HCH), and DDT were not detected or were below the limit.

[0153] Microbiological indicators: Total bacterial count <100 CFU / g; Coliform bacteria, molds and yeasts, Salmonella, and Staphylococcus aureus all meet the standard requirements.

[0154] Content variation: Complies with the regulations for tea preparations in the Pharmacopoeia of the People's Republic of China.

[0155] Example 6

[0156] Raw material formula: The raw materials are scaled up according to the following proportions: 3.6 kg of Gynostemma pentaphyllum, 4.86 kg of Cassia seed, 3.6 kg of Alisma plantago-aquatica, 1.8 kg of lotus leaf, 0.576 kg of senna leaf, 5.508 kg of oolong tea, and 0.828 kg of crystalline fructose.

[0157] The process steps are the same as in Example 1, and the key parameters are as follows:

[0158] S2: The extract was refrigerated and allowed to stand for 18 hours, then concentrated to obtain 2.11 kg of thick extract, of which the yield was 15.22%.

[0159] S4: After drying, it is pulverized to obtain 2.072 kg of dry paste powder.

[0160] S5: Theoretical powder yield after total mixing is 8.984 kg, actual yield is 8.89 kg, yield is 98.95%, mixing time is 30 min.

[0161] S6-S10: Granulation (14-mesh sieve), drying temperature 60-70℃, granulation (14-mesh sieve), packaging (2.5g / bag).

[0162] The final product yield was 3,360 bags, with a yield rate of 93.33%.

[0163] Quality inspection:

[0164] Key indicator test results: total saponins 0.84g / 100g; total anthraquinones 0.09g / 100g; tea polyphenols 3.4g / 100g; moisture 4.5%. All indicators meet the quality standards.

[0165] Example 7

[0166] Raw material formula: The raw materials are scaled up according to the following proportions: 23kg of Gynostemma pentaphyllum, 31.05kg of Cassia seed, 23kg of Alisma plantago-aquatica, 11.5kg of lotus leaf, 3.68kg of senna leaf, 35.19kg of oolong tea, and 5.29kg of crystalline fructose.

[0167] The process steps are the same as in Example 1, and the key parameters are as follows:

[0168] S3: 13.78 kg of thick extract was obtained, of which the yield was 15.56%.

[0169] S4: After drying, it was pulverized to obtain 13.49 kg of dry paste powder.

[0170] S5: Theoretical powder yield after total mixing is 57.42 kg, with a yield of 99.6%.

[0171] The final product yield was 21,990 bags, with a yield rate of 95.61%.

[0172] Quality inspection:

[0173] Key indicator test results: Total saponins 0.85g / 100g; Total anthraquinones 0.11g / 100g; Tea polyphenols 3.6g / 100g; Moisture 4.7%. Meets quality standards.

[0174] Example 8

[0175] The raw material formula is the same as in Example 6, and the preparation process is the same as in Example 1. The key data are as follows:

[0176] S3: 2.10 kg of thick extract was obtained, with an extract yield of 15.15%.

[0177] S4: 2.08 kg of dry ointment powder.

[0178] S5: The actual powder yield after total mixing is 8.92 kg, with a yield of 99.18%.

[0179] The final product yield was 3,360 bags, with a yield rate of 93.33%.

[0180] Quality inspection:

[0181] Key indicator test results: total saponins 0.87g / 100g; total anthraquinones 0.10g / 100g; tea polyphenols 3.5g / 100g; moisture 4.6%. Meets quality standards.

[0182] Example 9

[0183] The formula ratio and process steps are the same as in Example 1, with the main adjustments being the following parameters:

[0184] S2-S3: After the extract is refrigerated and allowed to stand for 24 hours, the supernatant is taken. During concentration, the temperature is controlled at 70-75℃ and the vacuum degree is 0.08MPa. The concentration is carried out until the relative density is 1.25 (measured at 60℃).

[0185] S4: The vacuum drying conditions are 55℃ and 0.08MPa, and the moisture content of the dried powder is controlled at 5.0%.

[0186] The remaining steps are the same as in Example 1.

[0187] Quality inspection:

[0188] Finished product inspection showed that the total saponin content was 0.88g / 100g; the total anthraquinone content was 0.12g / 100g; the tea polyphenol content was 3.8g / 100g; and the moisture content was 4.9%. This indicates that within the parameter adjustment range, the process was stable and the product quality still met the standards.

[0189] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0190] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A preparation process for oolong tea bags containing cassia seeds, characterized in that, Oolong tea and cassia seed tea bags contain the following ingredients in the indicated weight proportions: Cassia seed 120-150 parts, Gynostemma pentaphyllum 100 parts, Alisma plantago-aquatica 95-105 parts, lotus leaf 45-55 parts, senna leaf 15-18 parts, oolong tea 140-160 parts, crystalline fructose 20-25 parts; The preparation process of the oolong tea cassia seed tea bags includes the following steps; S1, pretreatment: senna and oolong tea were irradiated with Co 60 Co irradiation sterilization; S2. Extraction: Weigh the cassia seed, gynostemma pentaphyllum, alisma plantago-aquatica, and lotus leaf, add water and extract twice, then combine the filtrates; S3. Concentration: The filtrate is concentrated to a relative density of 1.20–1.25 to obtain a thick extract; S4. Drying, pulverizing, and sieving: After the thick extract is dried under reduced pressure, it is pulverized and sieved to obtain dry extract powder; S5. Total Mixing: The pretreated senna leaves and oolong tea are pulverized and sieved. The crystalline fructose is sieved and then mixed with the dry extract powder for 30-40 minutes to obtain the total mixed powder. S6. Granulation and Drying: To make soft material, the total mixed powder is made into wet granules, then dried to a moisture content of ≤5%, granulated and packaged. The quality standards for the oolong tea and cassia seed tea bags meet the following requirements: Total saponin content ≥ 0.5g / 100g; The total anthraquinone content is 0.05–0.15 g / 100 g; Tea polyphenol content ≥3.0g / 100g; Moisture ≤12%; Ash content ≤12%.

2. The preparation process of oolong tea cassia seed tea bags according to claim 1, characterized in that: In step S2, the extraction conditions are: The first extraction was done with 10 times the amount of water, and the second extraction was done with 8 times the amount of water. Each extraction lasted 1.5 hours. After filtering the extract through a 200-mesh sieve, refrigerate and let it stand for 18–24 hours, then collect the supernatant and concentrate it.

3. The preparation process of oolong tea cassia seed tea bags according to claim 1, characterized in that: In step S3, the reduced pressure drying conditions are as follows: Temperature 55~75℃, vacuum degree 0.07~0.08MPa, moisture content of dry powder controlled at 4%~5%.

4. The preparation process of oolong tea cassia seed tea bags according to claim 1, characterized in that: In step S4, the mixing time is determined by detecting the total saponin content; The total saponin content is calculated as ginsenosides.

5. The preparation process of oolong tea cassia seed tea bags according to claim 1, characterized in that: In step S5, both wet granules and granulated granules are produced using a 14-mesh sieve.

6. The preparation process of oolong tea cassia seed tea bags according to claim 1, characterized in that: In step S5, the drying process controls the temperature at 60-70°C and monitors the moisture content of the particles in real time to ensure that the final product has a moisture content of ≤5%.

7. The preparation process of oolong tea cassia seed tea bags according to claim 1, characterized in that: Each tea bag contains 2.5g and is wrapped in tea filter paper inside and a pharmaceutical composite film outside.

8. A quality standard for oolong tea and cassia seed tea bags as described in any one of claims 1-7, characterized in that, Also includes: Lead ≤ 5.0 mg / kg; Total arsenic ≤1.0 mg / kg; Total mercury ≤ 0.3 mg / kg; HCH ≤ 0.2 mg / kg; DDT ≤0.2mg / kg.

9. The quality standard for oolong tea and cassia seed tea bags as described in claim 8, characterized in that, The quality standards for the oolong tea cassia seed tea bags also include: Total bacterial count ≤30000 CFU / g; Escherichia coli ≤0.92 MPN / g; Mold and yeast ≤50 CFU / g; Salmonella must not be detected; Staphylococcus aureus must not be detected.

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