Tobacco chewable tablet containing betel nut component, microcapsule and tobacco product

Abstract

The invention relates to the technical field of novel tobaccos, in particular to a tobacco chewable tablet containing an areca-nut component, a microcapsule and a tobacco product, and a preparation method of the tobacco chewable tablet comprises the following steps: step 1, performing steam explosion treatment on an areca-nut raw material to obtain an areca-nut semi-finished product; 2, mixing the areca nut semi-finished product with a tobacco raw material according to a preset mass ratio, and performing microencapsulation treatment to obtain areca nut-tobacco microcapsule powder; and step 3, mixing the betel nut-tobacco microcapsule powder with an additive, and carrying out tabletting treatment to obtain the tobacco chewable tablets.

Description

Technical Field

[0001] The present application belongs to the field of novel tobacco technology, and specifically relates to a tobacco chewing tablet, microcapsule and tobacco product containing betel nut ingredients. Background Art

[0002] With the promulgation of the Framework Convention on Tobacco Control (FCTC) prohibiting the spread of tobacco smoke in public places, the widespread acceptance of the harmfulness of smoking, and the country's high attention to harm reduction and tar reduction, the development of smokeless tobacco products has become one of the inevitable choices for the tobacco industry. Smokeless tobacco can better adapt to the ban on smoking in public places, and to a certain extent meet the preferences of tobacco consumers and meet market demand. In recent years, it has shown a rapid development trend, and the market scale has expanded rapidly.

[0003] Smokeless tobacco products refer to tobacco products that do not produce smoke or do not require combustion during use. They mainly provide nicotine to the human body through oral, sucking, chewing and other methods. The products include a variety of forms such as snus, snuff and chewing tobacco, among which bagged snus, gum-based chewing tobacco and chewing tobacco are the main consumers. At present, most smokeless tobacco products directly grind tobacco raw materials into powder and flavor them in bags. Such products generally have the problem of uneven release, that is, they are too irritating when entering the mouth, have a strong bitter taste, and have a strong spicy taste. After a few minutes, the taste becomes lighter, the coordination becomes worse, and the enjoyment of the process is not strong.

[0004] Patent document with publication number CN103815540A discloses a betel nut flavored smokeless tobacco product and a preparation method thereof, wherein the betel nut flavored smokeless tobacco product is prepared by adding specially treated betel nut powder and / or betel nut extract and / or betel nut extract concentrate dry powder to tobacco raw materials. However, the problem that the tobacco raw materials are directly ground into powder, the product release is uneven, the irritation is too strong in the mouth, and the spicy taste is strong has not been solved. Summary of the invention

[0005] In view of this, the purpose of this application is to provide a tobacco chewing tablet containing betel nut ingredients to solve the above problems.

[0006] In order to solve the above technical problems, this application adopts the following technical solutions:

[0007] The present application provides a tobacco chewing tablet containing betel nut ingredients, and the tobacco chewing tablet is made by the following steps: step 1: steam explosion treatment is performed on betel nut raw materials to obtain betel nut semi-finished products; step 2: the betel nut semi-finished products are mixed with tobacco raw materials according to a preset mass ratio, and microencapsulation treatment is performed to obtain betel nut-tobacco microcapsule powder; step 3: the betel nut-tobacco microcapsule powder is mixed with additives, and tableting treatment is performed to obtain tobacco chewing tablets.

[0008] Furthermore, the betel nut raw material is dried betel nut, and step 1 specifically includes: step 1-1: controlling the dried betel nut to be soaked in water for 4h to 5h or 5h to 6h, controlling the rehydration rate of the dried betel nut to 40% to 43% or 43% to 45%, and obtaining rehydrated betel nut; step 1-2: controlling the introduction of saturated water vapor to make the steam pressure reach 0.25MPa to 0.3MPa or 0.3MPa to 0.35MPa, controlling the pressure time to be 3min to 5min or 5min to 6min, steam-exploding the rehydrated betel nut to obtain steam-exploded betel nut; step 1-3: controlling the drying temperature to be 80℃ to 85℃ or 85℃ to 90℃, drying the steam-exploded betel nut to obtain a semi-finished betel nut with a moisture content of 9% to 10% or 10% to 11%.

[0009] Furthermore, step 2 specifically includes: step 2-1: mixing the betel nut raw material after steam explosion treatment with the tobacco raw material according to a preset mass ratio to obtain a betel nut-tobacco semi-finished product; step 2-2: performing low-temperature ultrafine grinding treatment on the betel nut-tobacco semi-finished product to obtain a betel nut-tobacco ultrafine powder material; step 2-3: performing subcritical extraction treatment on the betel nut-tobacco ultrafine powder material to obtain a supernatant extract corresponding to the betel nut-tobacco ultrafine powder material; step 2-4: performing microencapsulation treatment on the supernatant extract to obtain betel nut-tobacco microcapsule powder.

[0010] Furthermore, the process parameters of step 2-2 include: controlling the equipment temperature of the crushing process to be maintained at 8°C to 9°C or 9°C to 10°C, controlling the crushing time to be 20min to 30min or 30min to 40min, and obtaining a betel nut-tobacco ultrafine powder material with a particle size of 200 mesh to 250 mesh or 250 mesh to 300 mesh.

[0011] Furthermore, the specific steps of step 2-3 include: step 2-3-1: according to a preset material-liquid ratio, deionized water is added to the subcritical water extraction equipment and mixed with the betel nut-tobacco ultrafine powder material; step 2-3-2: the reaction pressure of the subcritical water extraction equipment is controlled to be saturated steam pressure, the extraction time is controlled to be 30min to 40min or 40min to 50min, the extraction temperature is controlled to be 140°C to 150°C or 150°C to 160°C, and the crude extract is centrifuged to obtain a supernatant extract.

[0012] Further, step 2-4 specifically comprises the following steps: step 2-4-1: weighing deionized water and glacial acetic acid to prepare a 1% glacial acetic acid solution, adding 0.1g to 0.15g or 0.15g to 0.3g of chitosan to the glacial acetic acid solution and ultrasonically dissolving it for 50min to form a chitosan solution; step 2-4-2: stirring and emulsifying 0.3g to 0.4g or 0.4g to 0.5g of emulsifier Tween 80 and 1.0g to 1.25g or 1.25g to 1.5g of the supernatant extract raw material for 15min to 17min or 17min ~20min, after the emulsification rate is 600r / min~700r / min or 700r / min~800r / min, pour it into the chitosan solution, carry out ultrasonic mixing for 20min, and adjust the pH value of the chitosan solution to 5.5 with 1mol / L sodium hydroxide; step 2-4-3: add 5ml~7ml or 7ml~10ml of 5% sodium tripolyphosphate aqueous solution to the chitosan solution, and stir for 80min to form a microcapsule emulsion, and after freeze-drying, obtain betel nut-tobacco microcapsule powder.

[0013] Furthermore, the additives include: flavoring agents, adhesives, fillers and lubricants, and step 3 specifically includes: step 3-1: crushing the additives, sieving through an 80-mesh sieve, and mixing with betel nut-tobacco microcapsule powder to obtain a microcapsule mixed powder; step 3-2: using ethanol as a wetting agent, adding ethanol with a volume fraction of 95% to form a soft material for the microcapsule mixed powder, and granulating the soft material to obtain wet granules; step 3-3: drying the wet granules at a temperature of 60°C to 70°C or 70°C to 80°C to obtain dry granules; step 3-4: adding a lubricant to the dry granules, and sending them to a tableting device for tableting to obtain tobacco chewing tablets.

[0014] Furthermore, the additives include: flavoring agents, adhesives, fillers and lubricants. In terms of weight percentage, the tobacco chewing tablets include: betel nut-tobacco microcapsule powder 40% to 50%, flavoring agents 20% to 25%, adhesives 10% to 15%, fillers 10% to 15%, and lubricants 1% to 2%.

[0015] In a second aspect, the present application provides a microcapsule containing betel nut ingredients, and the steps of making the microcapsule include: step A: steam explosion treatment of betel nut dried fruits to obtain betel nut semi-finished products; step B: crushing and extracting the betel nut semi-finished products to obtain betel nut supernatant extract; step C: microencapsulation treatment of the betel nut supernatant extract to obtain microcapsules.

[0016] In a third aspect, the present application provides a tobacco product containing betel nut ingredients, wherein the tobacco product comprises the microcapsules containing betel nut ingredients provided in the second aspect above.

[0017] It can be seen from the above technical scheme that the advantages and positive effects of the tobacco chewing tablets, microcapsules and tobacco products containing betel nut ingredients proposed in this application are:

[0018] The present application first steam-explodes the rehydrated betel nut dried fruit to obtain a semi-finished betel nut product. Under the physical and chemical action of high-temperature and high-pressure steam, the hemicellulose in the betel nut is partially hydrolyzed, the lignin is softened and degraded, and the tissue structure becomes loose, which solves the technical problem that the prior art cannot prepare betel nut microcapsules; the semi-finished betel nut product is mixed with tobacco raw materials, and then ultrafinely crushed at low temperature, and then the mixed material is subjected to subcritical extraction, which further solves the technical problem that the betel nut microcapsules cannot fully release the betel nut flavor; the extracted liquid is microencapsulated into powder, and finally the powder and other materials are prepared into chewable tablets by wet granulation and tableting molding, so that the betel nut flavor and the tobacco flavor are released synchronously, and the taste effect of the pre-set ratio can be achieved, avoiding the technical problem that the betel nut flavor is too strong in the early stage and the tobacco flavor cannot be felt in the later stage. The chewable tablet has a smooth surface, a fine and uniform color distribution, an appropriate hardness, is easy to chew, has the unique flavor of betel nut and tobacco, and the alkaloids are continuously released, and the strength is strong, and the consumer enjoys the process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above content of the present application and the following specific implementation methods will be better understood when read in conjunction with the accompanying drawings. It should be noted that the accompanying drawings are only examples of the technical solutions claimed for protection.

[0020] Figure 1 The present invention is a flow chart of a method for preparing a tobacco chewing tablet containing betel nut ingredients. DETAILED DESCRIPTION

[0021] Please refer to Figure 1 As shown, the present application provides a tobacco chewing tablet containing betel nut ingredients, and the preparation method of the tobacco chewing tablet comprises the following steps:

[0022] Step 1: steam explosion treatment is performed on the betel nut raw material, and pretreatment is performed on the tobacco raw material.

[0023] Specifically, the betel nut raw material can be dried betel nut. A certain amount of dried betel nut is soaked in water for 4 to 6 hours and rehydrated to 40 to 45% to obtain rehydrated betel nut.

[0024] Load the rehydrated betel nut into the steam explosion equipment, introduce saturated water vapor until the steam pressure reaches 0.25-0.35MPa, maintain the pressure for 3-6min, quickly open the release valve, and unload the material into the storage tank to obtain steam-exploded betel nut.

[0025] The steam-exploded betel nuts are transferred to a drying oven, the drying temperature is controlled to be 80-90° C., the steam-exploded betel nuts are dried to 9-11% moisture, and a semi-finished betel nut product is obtained.

[0026] It can be understood that the pretreatment of tobacco raw materials can be soaking and drying, stem removal and slicing, roasting, etc. The specific implementation methods and implementation processes of tobacco raw material pretreatment are well known to those skilled in the art and will not be described in detail here.

[0027] The tobacco raw material may be any one or a combination of the following: flue-cured tobacco, burley tobacco, oriental tobacco and sun-cured tobacco.

[0028] Step 2: Mix the steam-exploded betel nut raw material and the tobacco raw material according to a preset mass ratio, and perform microencapsulation treatment to obtain betel nut-tobacco microcapsule powder.

[0029] Specifically, the betel nut semi-finished product obtained in step 1 and the tobacco raw material are mixed in a mass ratio of (0-1):(1-2) to obtain a betel nut-tobacco semi-finished product.

[0030] Weigh the betel nut-tobacco semi-finished product and put it into the feed barrel of the low-temperature ultrafine grinding mill. Keep the equipment temperature at 8-10°C during grinding for 20-40 minutes to prepare a betel nut-tobacco ultrafine powder material with a particle size of 200-300 meshes.

[0031] The subcritical water extraction device consists of a high-temperature reactor, a heating system and a temperature control system. Betel nut-tobacco ultrafine powder material is put into the high-temperature reactor, and deionized water is added to mix the betel nut-tobacco ultrafine powder material according to a material-liquid ratio of solvent water to powder sample of (30-35) ml:1g. The extraction time is controlled to be 30-50 minutes in a saturated steam mode, and the extraction temperature is controlled to be 140-160 DEG C. After the crude extract is centrifuged, a supernatant extract is obtained.

[0032] Microcapsules were prepared with the above supernatant extract as core material and chitosan as wall material.

[0033] Deionized water and glacial acetic acid were weighed to prepare a 1% glacial acetic acid solution, and 0.1-0.3 g of chitosan was added to the glacial acetic acid solution and ultrasonically dissolved for 50 minutes to form a chitosan solution.

[0034] 0.3-0.5g of emulsifier Tween 80 and 1.0-1.5g of supernatant extract were stirred and emulsified for 15-20min at an emulsification rate of 600-800r / min, poured into the chitosan solution and ultrasonically mixed for 20min, and then the pH value of the solution was adjusted to 5.5 using 1mol / L sodium hydroxide.

[0035] Slowly drop 5-10 ml of 5% sodium tripolyphosphate aqueous solution into the above solution, stir for 80 minutes to form a microcapsule emulsion, and freeze-dry to obtain betel nut-tobacco microcapsule powder.

[0036] Step 3: Mix the betel nut-tobacco microcapsule powder with additives and perform tableting to obtain tobacco chewing tablets.

[0037] Specifically, the additives may include any one or a combination of the following: flavoring agents, binders, fillers and lubricants.

[0038] The flavoring agent, adhesive, filler, lubricant and other auxiliary materials are crushed in advance by a pulverizer, sieved through an 80-mesh screen, and mixed with the betel nut-tobacco microcapsule powder to obtain a microcapsule mixed powder.

[0039] Take ethanol as the wetting agent, add an appropriate amount of 95% ethanol by volume, the amount of which can make the microcapsule mixed powder form a soft material, and the soft material is suitable for granulation. The hardness of the soft material can be determined according to the experience of workers or through industrial testing to determine whether the soft material can be held in a ball and dispersed when lightly pressed.

[0040] For granulating the soft material, a sieve with an aperture of 20 mesh can be selected, and the sieve is fixed on the swing granulator. The prepared soft material is put into the granulator for granulation, and the wet granules falling from the sieve holes of the sieve are selected.

[0041] After the wet granules are made, they are immediately placed in a drying oven for drying at a temperature of 60 to 80° C. to prevent the wet granules from agglomerating or deforming under pressure.

[0042] Preferably, during the drying process of the wet granules, the drying temperature should be gradually increased to prevent the surface of the wet granules from drying too quickly and forming a hard shell, thereby affecting the evaporation of moisture inside the wet granules. During the drying process, the wet granules are regularly turned over to dry the granules evenly and form dry granules. It is preferable that the moisture content of the dry granules is reduced to about 3%.

[0043] During granulation, tableting and storage, the ambient humidity is controlled to be less than 45% to reduce the effect of moisture on the properties and stability of tablets. Lubricant is added to the dry granules, mixed evenly, and sent to the tablet press for tableting.

[0044] The compressed tablets are sterilized by irradiating them under ultraviolet light for 20 to 30 minutes and then packaged in time to obtain the finished tobacco chewing tablets.

[0045] The tobacco chewing tablet provided in the present application has a flat and smooth surface, a fine and uniform color distribution, an appropriate hardness, is easy to chew, and has a unique flavor of betel nut and tobacco.

[0046] The tablet weight of the prepared tobacco chewing tablet containing betel nut ingredients is (1.00±0.05) g / tablet. In terms of mass percentage, the tobacco chewing tablet can include or consist of 40-50% of microcapsule powder, 20-25% of flavoring agent, 10-15% of adhesive, 10-15% of filler and 1-2% of lubricant.

[0047] Wherein, the flavoring agent is any one or a combination of the following: isomalt oligosaccharide, sorbitol, steviol glycoside, maltitol and xylitol. Preferably, the flavoring agent is one of steviol glycoside and xylitol.

[0048] The binder is preferably maltodextrin.

[0049] The filler is any one or a combination of the following: microcrystalline cellulose, mannitol and corn starch.

[0050] The lubricant is any one or a combination of the following: magnesium stearate, talc and non-dairy creamer.

[0051] To further understand the inventive concept of the present application, please refer to the following complete examples:

[0052] Embodiment 1:

[0053] (1) Steam explosion: soak a certain amount of dried betel nuts in water for 4 hours and rehydrate to 42%. Put the betel nuts into the steam explosion equipment and introduce saturated steam until the steam pressure reaches 0.30 MPa. The pressure maintenance time is controlled at 5 minutes. Quickly open the discharge valve and discharge the material into the storage tank. Transfer to the oven and dry at 90°C to 10% moisture to obtain the semi-finished betel nut.

[0054] (2) Low-temperature ultrafine grinding: The betel nut semi-finished product obtained in step (1) and the flue-cured tobacco raw material are mixed in a mass ratio of 1:1 to obtain a betel nut-tobacco semi-finished product. A certain amount of the betel nut-tobacco semi-finished product is weighed and put into a feed barrel of a low-temperature ultrafine grinding mill. The equipment temperature is maintained at 8° C. during grinding. The grinding is performed for 25 minutes to prepare a betel nut-tobacco ultrafine powder material with a particle size of 200 mesh.

[0055] (3) Subcritical extraction: The subcritical water extraction device is composed of a high-temperature reactor, a heating system, and a temperature control system. A certain amount of the betel nut-tobacco ultrafine powder material obtained in step (2) is placed in the reactor, and deionized water is added in a ratio of solvent water to powder sample of 30 ml:1 g. The reaction pressure is saturated steam pressure, the extraction time is 40 min, and the extraction temperature is 145° C. After the crude extract is centrifuged, the supernatant extract corresponding to the betel nut-tobacco ultrafine powder material is taken.

[0056] (4) Microencapsulation: Prepare microcapsules using the supernatant extract obtained in step (3) as the core material and chitosan as the wall material. Weigh deionized water and glacial acetic acid to prepare a 1% glacial acetic acid solution, add 0.3 g of chitosan and dissolve it by ultrasonic for 50 minutes to form a chitosan solution.

[0057] 0.5g of emulsifier Tween 80 and 1.5g of supernatant extract were stirred and emulsified for 15min at an emulsification rate of 600r / min, poured into a chitosan solution and ultrasonically mixed for 20min, and the pH value of the solution was adjusted to 5.5 using 1mol / L sodium hydroxide; 10ml of a 5% sodium tripolyphosphate aqueous solution was slowly added dropwise to the above solution, stirred for 80min to form a microcapsule emulsion, and freeze-dried to obtain betel nut-tobacco microcapsule powder.

[0058] (5) Wet tableting: Xylitol, maltodextrin, microcrystalline cellulose, magnesium stearate and other auxiliary materials are crushed in advance by a pulverizer, sieved through an 80-mesh screen, and mixed with the betel nut-tobacco microcapsule powder obtained in step (4). The mass ratio is microcapsule powder (50%), xylitol (22%), maltodextrin (15%), microcrystalline cellulose (12%), and magnesium stearate (1%).

[0059] Take ethanol as the wetting agent, add an appropriate amount of 95% ethanol by volume, and add an appropriate amount to make the soft material suitable for granulation. According to experience, the hardness of the soft material should be such that it can be lumped by hand and loose when lightly pressed.

[0060] For granulation, a sieve with an aperture of 20 mesh is used and fixed on a swing granulator. The prepared soft material is put into the granulator for granulation, and the wet granules falling from the sieve holes are selected. After the wet granules are made, they are immediately placed in a drying oven for drying at a temperature of 80°C to prevent the wet granules from agglomerating or deforming under pressure. The drying temperature should be gradually increased to prevent the surface from drying too quickly and forming a hard shell that affects the evaporation of internal moisture.

[0061] During the drying process, the granules need to be turned over regularly to ensure that they are evenly dried. The ideal drying endpoint is to reduce the moisture content of the granules to about 3%. In order to maintain the properties and stability of the tablets, the ambient humidity must be strictly controlled below 45% during the granulation, tableting and storage stages to effectively reduce the adverse effects of moisture. Next, the evenly mixed granules are sent to the tablet press for tableting. The pressed tablets are sterilized by ultraviolet irradiation for 25 minutes and then immediately packaged. At this point, the finished product is completed.

[0062] The chewable tablet provided in the present application presents a flat and smooth surface, delicate and evenly distributed color, moderate hardness, and is easy to chew. It perfectly blends the unique flavors of betel nut and tobacco, and the alkaloids are continuously released, bringing a strong taste experience. Consumers can enjoy a strong sense of satisfaction and pleasure during the entire chewing process.

[0063] Embodiment 2:

[0064] (1) Steam explosion: soak a certain amount of dried betel nut in water for 5 hours and rehydrate to 45%. Put the betel nut into the steam explosion equipment and introduce saturated steam until the steam pressure reaches 0.35 MPa. The pressure maintenance time is controlled at 6 minutes. Quickly open the discharge valve and discharge the material into the storage tank. Transfer to the oven and dry at 90°C to 10% moisture to obtain the semi-finished betel nut.

[0065] (2) Low-temperature ultrafine grinding: The betel nut semi-finished product obtained in step (1) and the burley tobacco raw material are mixed in a mass ratio of 1:2 to obtain a betel nut-tobacco semi-finished product. A certain amount of the betel nut-tobacco semi-finished product is weighed and placed into a feed barrel of a low-temperature ultrafine grinding mill. The equipment temperature is maintained at 10° C. during grinding. The grinding is performed for 30 minutes to prepare a betel nut-tobacco ultrafine powder material with a particle size of 250 mesh.

[0066] (3) Subcritical extraction: The subcritical water extraction device is composed of a high-temperature reactor, a heating system, and a temperature control system. A certain amount of the betel nut-tobacco ultrafine powder material obtained in step (2) is placed in the reactor. Deionized water is added at a ratio of solvent water to powder sample of 35 ml:1 g. The reaction pressure is saturated steam pressure, the extraction time is 45 min, and the extraction temperature is 150°C. After the crude extract is centrifuged, the supernatant extract corresponding to the betel nut-tobacco ultrafine powder material is taken.

[0067] (4) Microencapsulation: Prepare microcapsules using the supernatant extract obtained in step (3) as the core material and chitosan as the wall material. Weigh deionized water and glacial acetic acid to prepare a 1% glacial acetic acid solution, add 0.2 g of chitosan and ultrasonically dissolve for 50 minutes to form a chitosan solution.

[0068] 0.4 g of emulsifier Tween 80 and 1.0 g of supernatant extract were stirred and emulsified for 20 min at an emulsification rate of 800 r / min, poured into a chitosan solution and ultrasonically mixed for 20 min, and then the pH value of the solution was adjusted to 5.5 using 1 mol / L sodium hydroxide; 10 ml of a 5% sodium tripolyphosphate aqueous solution was slowly added dropwise to the above solution, and stirred for 80 min to form a microcapsule emulsion, which was freeze-dried to obtain betel nut-tobacco microcapsule powder.

[0069] (5) Wet tableting: Pre-crush auxiliary materials such as stevioside, maltodextrin, corn starch and talcum powder with a pulverizer, sieve through an 80-mesh screen, and mix with the betel nut-tobacco microcapsule powder obtained in step (4). The mass ratio is microcapsule powder (45%), stevioside (25%), maltodextrin (13%), corn starch (15%), and talcum powder (2%).

[0070] Take ethanol as the wetting agent, add an appropriate amount of 95% ethanol by volume, and add an appropriate amount to make the soft material suitable for granulation. According to experience, the hardness of the soft material should be able to form a ball when held by hand, and it will be loose when pressed lightly; for granulation, use a screen with an aperture of 20 mesh, fixed on a swing granulator.

[0071] Put the prepared soft material into the granulator for granulation, and select the wet granules that fall from the sieve. After the wet granules are made, they are immediately placed in a drying oven for drying at a temperature of 80°C to prevent the wet granules from agglomerating or deforming under pressure. The drying temperature should be gradually increased to prevent the surface from drying too quickly and forming a hard shell that affects the evaporation of internal moisture. The granules should be turned over regularly during drying to ensure that they are dried evenly. The drying end point is preferably when the moisture content of the granules drops to about 3%.

[0072] During granulation, tableting and storage, the ambient humidity must be controlled to less than 45% to reduce the effect of moisture on the properties and stability of the tablets. The granules are mixed evenly and sent to the tablet press for tableting. The pressed tablets are sterilized under ultraviolet light for 25 minutes and packaged in time to be the finished product.

[0073] Based on Example 1, the applicant implemented the following comparative examples:

[0074] Comparative Example 1:

[0075] The method is the same as Example 1, except that in step (4), microencapsulation is not performed, and the supernatant extract obtained in step (3) is directly freeze-dried into powder for wet tableting.

[0076] Verification 1:

[0077] Please refer to Table 1, the comparison results of active ingredients of Example 1 and Comparative Example 1 are as follows:

[0078] Table 1: Comparison results of active ingredients of Example 1 and Comparative Example 1

[0079] index Example 1 Comparative Example 1 difference / % Arecoline / μg / g 329.25 234.76 28.70 Total phenol / mg / g 24.93 18.72 24.91 Nicotine / mg / g 1.94 1.26 35.05

[0080] Among them, taking the index of arecoline as an example, the arecoline content of Example 1 is 329.25 μg of arecoline per 1g of tobacco chewing tablet.

[0081] It can be understood that freeze-drying into powder after microencapsulation can better protect the active ingredients in the chewable tablets than directly freeze-drying into powder.

[0082] Comparative Example 2:

[0083] The method is the same as Example 1, except that the steam explosion treatment in step (1) is not performed, and the betel nut raw material and the tobacco raw material are directly subjected to low-temperature ultrafine grinding.

[0084] Verification 2:

[0085] The applicant invited a smoking expert to conduct a detailed sensory evaluation of the samples of Example 1 and Comparative Example 2. The results showed that although both exhibited distinct betel nut flavor characteristics and brought strong oral and throat stimulation, they were very strong, but there were significant differences in the taste experience. Specifically, compared with Example 1, the sample of Comparative Example 2 showed a relatively rough taste during chewing, lacking the necessary softness, which affected the overall chewing comfort.

[0086] The possible reason is the tough structural characteristics of the crude fiber of betel nut. If it is directly ultra-finely ground without proper pretreatment, the crude fiber of betel nut will greatly increase the difficulty of the grinding process due to its inherent toughness and intricate fiber structure.

[0087] These fibers are difficult to be crushed finely and evenly during the pulverization process, resulting in uneven particle size distribution in the final product, and may contain larger fiber particles. This condition not only makes the texture of the product rough and uneven, but may also have an adverse effect on the taste, further weakening the consumer's taste experience.

[0088] The present application processes betel nut through steam explosion technology, so that the betel nut fiber becomes fluffy and softened, which is convenient for crushing. At the same time, it effectively avoids the damage of the crude fiber of betel nut to the oral epithelial cells of the human body, and significantly reduces the risk of cancer.

[0089] The low-temperature ultrafine grinding technology is used to minimize the loss of active ingredients in the material.

[0090] Through subcritical water extraction technology, active substances in the mixed materials, such as arecoline, phenols, nicotine, chlorogenic acid, etc., are efficiently extracted, ensuring the full retention of active ingredients.

[0091] Microencapsulation technology effectively protects the active substances and volatile components in the material, reduces the loss rate, and avoids the problems of strong irritation, strong bitterness, and strong spiciness caused by direct use of raw material powder.

[0092] The chewable tablets prepared by the wet tableting process have a significantly increased surface area after being chewed in the mouth, which promotes the dissolution and absorption of the active ingredients. They have a unique taste and achieve sustained release of alkaloids, which not only meets the physiological needs of consumers, but also provides a novel and stimulating user experience.

[0093] Based on the same inventive concept, the present application also provides a microcapsule containing betel nut ingredients, and the steps of making the microcapsule include: step A: steam explosion treatment of betel nut dried fruit. Step B: crushing and extracting the betel nut dried fruit treated in step 1 to obtain betel nut supernatant raw material. Step C: microencapsulation treatment of the betel nut supernatant raw material to obtain microcapsules.

[0094] Specifically, step A comprises: soaking a certain amount of dried betel nut in water for 4 to 6 hours, rehydrating to 40 to 45%, and obtaining rehydrated betel nut. The rehydrated betel nut is loaded into a steam explosion device, saturated steam is introduced, and after the steam pressure reaches 0.25 to 0.35 MPa, the pressure is maintained for 3 to 6 minutes, and the discharge valve is quickly opened to discharge the material into a storage tank, and then transferred to an oven, and dried at 80 to 90° C. to 9 to 11% moisture, to obtain a semi-finished betel nut product.

[0095] Put the semi-finished betel nut product into the feed barrel of the low-temperature ultrafine grinding mill, keep the equipment temperature at 8-10°C during grinding, grind for 20-40 minutes, and prepare the betel nut ultrafine powder material with a particle size of 200-300 meshes.

[0096] The subcritical water extraction device is composed of a high-temperature reactor, a heating system, and a temperature control system. A certain amount of ultrafine powder material is taken and placed in a high-temperature reactor, and deionized water is added according to the ratio of solvent water to powder sample of (30-35) ml: 1g. The reaction pressure is saturated steam pressure, the extraction time is 30-50 minutes, the extraction temperature is 140-160°C, and the crude extract is centrifuged to obtain the betel nut supernatant extract.

[0097] Microcapsules are prepared by using betel nut supernatant extract as core material and chitosan as wall material. Deionized water and glacial acetic acid are weighed to prepare a 1% glacial acetic acid solution, and 0.1-0.3g chitosan is added and ultrasonically dissolved for 50min to form a chitosan solution; 0.3-0.5g of emulsifier Tween 80 and 1.0-1.5g of supernatant extract are stirred and emulsified for 15-20min at an emulsification rate of 600-800r / min, poured into the chitosan solution and ultrasonically mixed for 20min, and the pH value of the solution is adjusted to 5.5 using 1mol / L sodium hydroxide; 5-10ml of a 5% sodium tripolyphosphate aqueous solution is slowly dripped into the above solution, stirred for 80min to form a microcapsule emulsion, and freeze-dried to obtain microcapsules containing betel nut ingredients.

[0098] Based on the same inventive concept, the present application also provides a tobacco product, which contains the microcapsules containing betel nut ingredients provided by the present application, so as to improve the smoking taste of the tobacco product and enhance the user experience.

[0099] Illustratively, the tobacco product may be cigarettes, cigars, pipe tobacco, snuff, electronic cigarettes, hookahs, chewing tobacco, etc., but the present application is not limited thereto.

[0100] This application innovatively proposes a new chewing tablet preparation process combining betel nut and tobacco. First, the rehydrated betel nut is subjected to steam explosion treatment, and the unique physical and chemical effects of high-temperature and high-pressure steam are used to promote partial hydrolysis of the hemicellulose inside the betel nut, while the lignin is softened and degraded, thereby making the tissue structure of the betel nut more loose and porous.

[0101] Subsequently, the steam-exploded betel nut is mixed with selected tobacco raw materials, and low-temperature ultra-fine grinding technology is used to ensure that the mixed material reaches an extremely fine particle size, which is convenient for subsequent processing and ingredient release.

[0102] Next, the mixed material is subjected to subcritical extraction to effectively extract the active ingredients therein and provide high-quality extract for subsequent preparation.

[0103] After the extraction is completed, the resulting liquid is converted into powder through microencapsulation technology. This process not only improves the stability and solubility of the product, but also enhances the delicate taste.

[0104] Finally, the above powder and other auxiliary materials are carefully prepared into chewable tablets through wet granulation and tableting processes. The chewable tablets prepared have a smooth surface, uniform and delicate color, moderate hardness, easy chewing, and perfectly blend the unique flavors of betel nut and tobacco. In addition, the chewable tablets also have the characteristics of continuous release of alkaloids, so that consumers can get a lasting and strong sense of satisfaction during the enjoyment process.

[0105] The terms and expressions used herein are for descriptive purposes only and the present application should not be limited to these terms and expressions. The use of these terms and expressions does not mean to exclude any equivalent features of the illustrations and descriptions (or parts thereof), and it should be recognized that various modifications that may exist should also be included in the scope of the claims. Other modifications, variations and substitutions may also exist. Accordingly, the claims should be deemed to cover all such equivalents.

[0106] Similarly, it should be pointed out that although the present application has been described with reference to the current specific embodiments, ordinary technicians in this technical field should realize that the above embodiments are only used to illustrate the present application, and various equivalent changes or substitutions may be made without departing from the spirit of the invention. Therefore, as long as the changes and modifications to the above embodiments are within the essential spirit of the present application, they will fall within the scope of the claims of the present application.

Claims

1. A tobacco chewing tablet containing betel nut, characterized in that: The tobacco chewing tablet is prepared by the following steps: Step 1: steam explosion the betel nut raw material to obtain a betel nut semi-finished product; Step 2: mixing the betel nut semi-finished product with the tobacco raw material according to a preset mass ratio, and performing microencapsulation treatment to obtain betel nut-tobacco microcapsule powder; Step 3: Mix the betel nut-tobacco microcapsule powder with additives and perform tableting to obtain tobacco chewing tablets.

2. The tobacco chewing sheet according to claim 1, characterized in that: The betel nut raw material is betel nut dried fruit, and the step 1 specifically comprises: Step 1-1: Control the dried betel nut to be soaked in water for 4h to 5h or 5h to 6h, Controlling the rehydration rate of the dried betel nut to 40% to 43% or 43% to 45% to obtain rehydrated betel nut; Step 1-2: Control the introduction of saturated water vapor so that the steam pressure reaches 0.25MPa~0.3MPa or 0.3MPa~0.35MPa, Controlling the pressure time to be between 3 minutes and 5 minutes or between 5 minutes and 6 minutes, steam-exploding the rehydrated betel nut to obtain steam-exploded betel nut; Step 1-3: Control the drying temperature to 80° C. to 85° C. or 85° C. to 90° C., dry the steam-exploded betel nut, and obtain the betel nut semi-finished product with a moisture content of 9% to 10% or 10% to 11%.

3. The tobacco chewing sheet according to claim 1, characterized in that: The step 2 specifically includes: Step 2-1: mixing the betel nut semi-finished product with tobacco raw materials according to a preset mass ratio to obtain a betel nut-tobacco semi-finished product; Step 2-2: subjecting the betel nut-tobacco semi-finished product to low-temperature ultrafine grinding to obtain a betel nut-tobacco ultrafine powder material; Step 2-3: performing subcritical extraction on the betel nut-tobacco ultrafine powder material to obtain a supernatant extract corresponding to the betel nut-tobacco ultrafine powder material; Step 2-4: microencapsulate the supernatant extract to obtain the betel nut-tobacco microcapsule powder.

4. The tobacco chewing sheet according to claim 3, characterized in that: The process parameters of step 2-2 include: The temperature of the equipment used to control the crushing process is maintained at 8℃~9℃ or 9℃~10℃. Control the crushing time to 20min~30min or 30min~40min, The betel nut-tobacco ultrafine powder material with a particle size of 200 mesh to 250 mesh or 250 mesh to 300 mesh is obtained.

5. The tobacco chewing sheet according to claim 3, characterized in that: The specific steps of step 2-3 include: Step 2-3-1: adding deionized water into a subcritical water extraction device according to a preset material-liquid ratio, and mixing with the betel nut-tobacco ultrafine powder material; Step 2-3-2: Control the reaction pressure of the subcritical water extraction equipment to be saturated steam pressure, Control the extraction time to 30min~40min or 40min~50min, Control the extraction temperature to 140℃~150℃ or 150℃~160℃, After the crude extract is centrifuged, the supernatant extract is obtained.

6. The tobacco chewing sheet according to claim 3, characterized in that: The specific steps of steps 2-4 include: Step 2-4-1: weigh deionized water and glacial acetic acid to prepare a 0.5% to 2.0% glacial acetic acid solution, add 0.1 g to 0.15 g or 0.15 g to 0.3 g of chitosan to the glacial acetic acid solution, and dissolve it by ultrasonic for 50 minutes to form a chitosan solution; Step 2-4-2: stirring and emulsifying 0.3 g to 0.4 g or 0.4 g to 0.5 g of emulsifier Tween 80 and 1.0 g to 1.25 g or 1.25 g to 1.5 g of the supernatant extract for 15 min to 17 min or 17 min to 20 min at an emulsification rate of 600 r / min to 700 r / min or 700 r / min to 800 r / min, pouring the mixture into the chitosan solution, performing ultrasonic mixing for 20 min, and adjusting the pH value of the chitosan solution to 5.5 using 1 mol / L sodium hydroxide; Step 2-4-3: drop 5ml to 7ml or 7ml to 10ml of 5% sodium tripolyphosphate aqueous solution into the chitosan solution and stir for 80min to form a microcapsule emulsion. After freeze-drying, the betel nut-tobacco microcapsule powder is obtained.

7. The tobacco chewing sheet according to claim 1, characterized in that: The additives include: flavoring agents, adhesives, fillers and lubricants, and the step 3 specifically includes: Step 3-1: crushing the additive, sieving it through an 80-mesh sieve, and mixing it with the betel nut-tobacco microcapsule powder to obtain a microcapsule mixed powder; Step 3-2: using ethanol as a wetting agent, adding ethanol with a volume fraction of 95% to form a soft material from the microcapsule mixed powder, and granulating the soft material to obtain wet granules; Step 3-3: drying the wet granules at a temperature of 60° C. to 70° C. or 70° C. to 80° C. to obtain dry granules; Step 3-4: adding the lubricant to the dry particles, and feeding the dried particles into a tableting device for tableting to obtain the tobacco chewing tablets.

8. The tobacco chewing sheet according to claim 1, characterized in that: The additives include: flavoring agents, adhesives, fillers and lubricants. In terms of weight percentage, the tobacco chewing tablet includes:

9. A microcapsule containing betel nut ingredients, characterized in that: The steps of making the microcapsules include: Step A: steam explosion treatment is performed on dried betel nut to obtain a semi-finished betel nut product; Step B: crushing and extracting the betel nut semi-finished product to obtain a betel nut supernatant extract; Step C: performing microencapsulation treatment on the betel nut supernatant extract to obtain microcapsules.

10. A tobacco product containing betel nut, characterized in that: include: The invention relates to a microcapsule comprising the betel nut component as claimed in claim 9.

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