CN105167165A - Aromatized cigarette and preparation method thereof - Google Patents

Abstract

The invention belongs to the field of tobacco products and discloses an aromatherapy cigarette and a preparation method thereof. An aromatherapy cigarette includes functional ingredients, carbon powder, plant fiber, and binder; the functional ingredients are tobacco extract and tobacco extract particles; the tobacco extract accounts for 3% to 15% of the mass of the aromatherapy cigarette ; Tobacco extract particles account for 5% to 30% of the mass of cigarettes; the tobacco extract particles include at least two substrate layers with different tobacco extract contents; the substrate layers are coated layer by layer, and the substrate layers A coating layer is coated on the surface of the base material layer, and the base material layer contains excipients; the tobacco extract content of the tobacco extract particle gradually decreases from the inside to the outside of the base material layer. The tobacco components in the aromatherapy cigarettes are provided by both the tobacco extract and the tobacco extract particles, and the release process of the two complements each other, maintaining the content of the tobacco components in the aromatherapy cigarettes, and providing consumers with a continuous and uniform taste.

Description

A kind of aromatherapy cigarette and its preparation method

technical field

The invention belongs to the field of tobacco products, and more specifically relates to an aromatherapy cigarette and a preparation method thereof.

Background technique

At present, most of the smokeless tobacco products on the foreign market are tobacco powder products, and most of them exist in the form of bagged snus, bulk snus, and snuff. Tobacco chewing gum, as an important supplementary form of smokeless tobacco products, meets the physiological needs of tobacco consumers, but changes the intake method of traditional tobacco ingredients, and it is difficult for consumers to adapt to this smoking habit.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide an aromatherapy cigarette, which can effectively control the release rate of nicotine during the combustion process of the aromatherapy cigarette, and increase the process of uniform release of nicotine and other components.

Another object of the present invention is to provide a method for preparing the aroma cigarette.

The present invention is realized through the following technical solutions:

An aromatherapy cigarette, including functional ingredients, carbon powder, plant fibers, and binders; the functional ingredients are tobacco extract and tobacco extract particles;

The tobacco extract accounts for 3% to 15% of the mass of the cigarette; the tobacco extract particles account for 5% to 30% of the mass of the cigarette;

The tobacco extract particles include at least two substrate layers with different tobacco extract contents; the substrate layers are coated layer by layer, the surface of the substrate layer is coated with a coating layer, and the substrate layer contains Excipient: the content of tobacco extract in the base material layer of the tobacco extract particles gradually decreases from the inside to the outside.

The tobacco component in the aromatherapy cigarette of the present invention is provided by both tobacco extract and tobacco extract particles, the tobacco extract is uniformly dispersed in the aromatherapy cigarette, and the tobacco extract particles are evenly distributed in the aromatherapy cigarette in the form of particles. During the combustion process, as the initial tobacco extract content gradually decreases, the tobacco extract in the tobacco extract particles is gradually released, thereby maintaining the content of tobacco components released by the cigarette, providing consumers with continuous and uniform smoking Effect.

The coating layer can avoid the volatilization loss of active ingredients in the tobacco extract particles during the production and processing of the cigarettes, facilitate the storage of the tobacco extracts; prevent the nicotine in the particles from dissolving into the cigarettes, thereby ensuring the tobacco products Flavor; In addition, the coating layer also plays a role in sustained release, which can improve the release uniformity of the tobacco extract particles during use.

The tobacco extract content in the tobacco extract particles gradually decreases from the inside to the outside, which can effectively control the release of active ingredients and provide uniform flavor and fragrance retention during the burning process of the aromatherapy cigarette. For example, the content of the tobacco extract particles gradually decreases from the inside to the outside, which can overcome the lack of release of effective smoke components in the later stage of the burning process of the aromatherapy cigarette, and provide a continuous and effective smoking effect.

The tobacco used in the invention is one or more of burley tobacco, flue-cured tobacco and oriental tobacco.

Preferably, the aromatherapy cigarette consists of the following substances in mass percentage:

Tobacco extract 3% ~ 15%; tobacco extract particles 5% ~ 30%; carbon powder 10% ~ 50%; plant fiber 10% ~ 35%; binder 1% ~ 10%;

The tobacco extract particles include at least two substrate layers with different tobacco extract contents; the substrate layers are coated layer by layer, the surface of the substrate layer is coated with a coating layer, and the substrate layer contains Excipient: the content of tobacco extract in the base material layer of the tobacco extract particles gradually decreases from the inside to the outside.

Further preferably, 6% to 12% of tobacco extract; 9% to 23% of tobacco extract particles; 18% to 42% of carbon powder; 15% to 30% of plant fiber; 4% to 7% of binder; The tobacco extract particles include substrate layers with different tobacco extract contents; the substrate layers are coated layer by layer, the surface of the substrate layer is coated with a coating layer, and the substrate layer contains excipients; The tobacco extract content of the tobacco extract particle gradually decreases from the inside to the outside of the substrate layer.

Preferably, the particle diameter of the tobacco extract particles is 100um-1000um. Further preferably, the particle size of the tobacco extract particles is 400um-600um.

Preferably, the tobacco extract is in the form of extract, amorphous powder, solution or the like.

Preferably, the mass fraction of nicotine in the tobacco extract is 8%; the mass fraction of nicotine in the tobacco extract particles is 6%.

Preferably, the carbonaceous powder is charcoal powder or bamboo charcoal powder, with a particle size of 80-150 mesh, an ash content of 8%-12%, and a moisture content of ≤10%. .

Preferably, the plant fiber is refined wood fiber, bamboo fiber, secondary fiber or a mixture thereof, of course, other plant fibers can also be used according to the raw material condition.

Preferably, the binder is elm bark powder, bakelite powder, α-starch, methyl cellulose.

Due to different extraction methods and extraction processes, the components of the extracts that can be obtained are significantly different. Since the use of aromatherapy cigarettes is different from that of traditional cigarettes, in order to meet the needs of smokers (the main component is nicotine) as in traditional cigarettes, while avoiding the generation of other miscellaneous flavors, destroying the taste, and not conducive to the subsequent flavoring of aromatherapy cigarettes fragrant. In the present invention, two steps are used for extraction, and water and ethanol (both polar solvents) with high nicotine solubility are used as extractants in the two extraction steps, which can effectively reduce nicotine while ensuring sufficient extraction of nicotine. The dissolution of other non-essential oily components in tobacco.

Preferably, the extraction method of tobacco extract comprises the following steps:

S11. Adding water to the tobacco, soaking it at 60°C-70°C, cooling, ultrasonic extraction at no higher than 30°C, and filtering to obtain filter residue a and filtrate a;

S12. After adding ethanol to the filter residue a of S11, ultrasonically extract and filter under the condition of not higher than 30° C. to obtain filter residue b and filtrate b;

S13. The filtrate a and the filtrate b are mixed and concentrated to obtain the tobacco extract.

According to the principle of phase equilibrium of substance diffusion, the present invention adopts two-step extraction technology, which can more effectively extract effective components such as nicotine in tobacco. Soaking in water at 60°C to 70°C can moisten the tobacco fastest and reduce the reaction between tobacco components; moreover, the volatility of water is weak, which can effectively avoid the volatilization of active ingredients in tobacco. Due to the compatibility between ethanol and water, and the loose structure of tobacco after ultrasonic extraction, ethanol can quickly reach the inside of the tobacco, and it can further extract the active ingredients such as nicotine inside the tobacco without re-immersing to improve the extraction. Rate.

Water and ethanol are used as extraction agents. On the one hand, the two can be miscible, which facilitates the mixing of the extracts. On the other hand, both are non-toxic solvents. The extracted filtrate can be directly used for subsequent processing.

In order to improve the extraction efficiency and prevent the loss of active ingredients during the ultrasonic extraction process, the ultrasonic extraction temperature is preferably not higher than 30°C.

Preferably, the excipient is selected from one or more of starch, sugar powder, dextrin, lactose, modified starch, microcrystalline cellulose, mannitol, sorbitol and erythrose.

Preferably, the coating material is microcrystalline cellulose, gum arabic, sodium alginate, carrageenan, dextrin, modified starch, gelatin, casein, polyvinyl alcohol, sodium carboxymethylcellulose, ethyl Any one or more of cellulose or methyl cellulose.

In order to control the release rate of the tobacco extract, during the use of the cigarette, the release of the extract in the tobacco extract particles and the release of the extract in the base material of the cigarette have a gentle transition, preferably, the coating The material also contains a porogen; the coating layer has certain pores, which is beneficial to the release of the tobacco extract.

Preferably, the porogen is one or more of sucrose, sorbitol, mannitol, polyethylene glycol, hydroxypropylmethylcellulose, and hydroxypropylcellulose.

Preferably, the mass ratio of the absolute dry mass of tobacco to water in S11 is 1:13-15; the mass ratio of the absolute dry mass of filter residue a to ethanol in S12 is 1:6-8; the power of ultrasonic waves in S11 and S12 is 250W～350W, ultrasonic time is 30min～70min; ultrasonic temperature is 20℃～30℃.

Further preferably, the mass ratio of the absolute dry mass of the tobacco in S11 to water is 1:14; the mass ratio of the absolute dry mass of the filter residue a to ethanol in S12 is 1:7; the power of the ultrasonic wave in S11 and S12 is 300W , the ultrasonic temperature is 25° C.; the S11 ultrasonic time is 60 min; the S12 ultrasonic time is 30 min. The ratio of the tobacco to water can fully moisten and expand the tobacco, and can make the two-phase concentration difference of nicotine and other active ingredients in the water and the tobacco relatively large, thereby improving the ultrasonic extraction efficiency. At the same time, the loss of active ingredients caused by subsequent concentration of a large amount of extract is avoided, and energy consumption can be reduced.

A preparation method of the tobacco extract particles, comprising the following steps:

S21. Mix the tobacco extract and excipient evenly, add water to make soft material;

S22. Put the soft material prepared in S21 into an extrusion-spheronizer to granulate, then dry and sieve to obtain a core material;

S23. Preparation of a first fluid dynamic mixture of tobacco extract and excipients;

Put the core material prepared by S22 into the fluidized bed granulator, adjust the parameters of the fluidized bed granulator, make the core material in a fluidized state, spray the first flow dynamic mixture, and form on the surface of the core material after drying The first base material layer is sieved to obtain the first particles;

S24. Prepare the Nth flow-dynamic mixture of tobacco extract and excipient, said N≥2;

Put the first particles prepared in S23 into a fluidized bed granulator, adjust the parameters of the fluidized bed granulator, make the first particles in a fluidized state, spray into the Nth fluid dynamic mixture, and dry them in the next The Nth substrate layer is formed on the surface of a particle, and the Nth particle is obtained by sieving;

S25. Prepare a coating solution;

Put the Nth particles prepared in S24 into the fluidized bed granulator, adjust the parameters of the fluidized bed granulator, make the Nth particles in a fluidized state, spray into the coating solution, and dry the Nth particles A coating layer is formed on the surface, and the tobacco extract particles are obtained by sieving;

Wherein, the tobacco extract content of the core material>the tobacco extract content of the first substrate layer>the tobacco extract content of the Nth substrate layer.

The core material of the tobacco extract particles of the present invention is granulated by an extrusion-spheronizer, so that the core material is denser and has the largest content of tobacco extract, which is beneficial to prolong the release time of the tobacco extract and provide a release amount, It ensures the taste and flavor of the new tobacco products at the end of their use.

The core material is sprayed on the fluidized bed more than once, and the surface of the core material is coated with multiple base material layers, and the concentration of tobacco extracts in different base material layers from the inside to the outside gradually decreases, so that the new tobacco The product can have a uniform taste and aroma during use. A more uniform coating effect can be obtained by using a fluidized bed granulator.

Preferably, in S23 and S24, the particle diameters of the first particle and the Nth particle gradually increase, and further preferably, the particle diameters of the different particles increase in a range of 100 um to 110 um. In order to ensure a uniform change in taste and uniform quality of the same batch of particles, preferably, the respective particle diameters of the first particle and the Nth particle are within a range of not more than 100 um. Preferably, the particle diameter of the first particle is 400um-500um, and the particle diameter of the second particle is 500um-600um.

Preferably, the core material is coated with the substrate layer three times, that is, N is 3.

Since different tobacco extract particles have different degrees of dissolution or release at the same time, in order to obtain a uniform taste, this requires that the concentration difference between the core material and different substrate layers be within a reasonable range. Based on the technical solution of the present invention, preferably, the tobacco extract content of the core material, the first base material layer, and the Nth base material layer differs by 10% to 15%.

Preferably, the extrusion-spheronizer in S22 has an extrusion sieve aperture of 0.2-0.4mm; extrusion speed of 80r/min-150r/min; spheronization speed of 250r/min-350r/min; spheronization time of 3 minutes to 6 minutes; the drying temperature is 40 to 45° C.; the particle size of the core material is 300 um to 500 um.

Further preferably, the extrusion-spheronizing granulator in S22 has an extrusion sieve aperture of 0.3mm; extrusion speed of 120r/min; spheronization speed of 300r/min; spheronization time of 5min; drying temperature of 42°C; The particle size of the core material is 300um-400um.

Preferably, the process conditions of the fluidized bed granulator in S23, S24 and S25 are: the air intake volume is 500m ³ /h-800m ³ /h, the fluidization temperature is 40-45°C, and the atomizing gas pressure is 0.2Mpa- 0.4Mpa; the concentration of the first fluid dynamic mixture, the Nth fluid dynamic mixture, and the coating liquid is 6% to 10%, and the spray flow rate is 0.6ml/min to 0.9ml/min.

Further preferably, the process conditions of the fluidized bed granulator in S23, S24 and S25 are: the air intake rate is 600m ³ /h, the fluidization temperature is 43°C, and the atomizing gas pressure is 0.3Mpa; the first fluid dynamic mixture, the second The concentration of the N fluid mixture and the coating solution is 7%, and the spray flow rate is 0.8ml/min.

Preferably, the solvent used in the coating solution is water or ethanol, and a surfactant is also added.

In order to obtain the best sustained-release effect and uniform taste change, preferably, the core material, the first substrate layer and the Nth substrate layer account for the same mass fraction of the tobacco extract particles.

A preparation method of the aroma cigarette, comprising the following steps:

S31. Take the plant fiber according to the mass percentage, perform defrosting, beating, and adjust the concentration to obtain the plant fiber slurry;

S32. After mixing and stirring the plant fiber slurry, tobacco extract particles, carbonaceous powder, and binder, papermaking, dehydration, stamping, drying at low temperature to remove water, to obtain the base material of aromatherapy tobacco;

S33. Spraying the tobacco extract on the aforementioned base material of the aromatherapy cigarette to obtain the aromatherapy cigarette.

The present invention mixes tobacco extract particles with plant fiber slurry, etc., which greatly reduces the loss of tobacco extract in the process of papermaking, dehydration and drying. At the same time, tobacco extract particles are added to the base material of the aromatherapy cigarette, which can increase the storage form and storage time of the tobacco components in the aromatherapy cigarette, and can also increase the release mode of the tobacco extract. The tobacco extract sprayed on the cigarette substrate plays a key role in the uniformity of the release of tobacco components.

In the present invention, the tobacco extract and the tobacco extract particles are successively added into the aromatherapy cigarette in two steps, on the one hand, it is beneficial to the uniform distribution of the tobacco extract; Disadvantages such as unevenness and agglomeration.

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

The tobacco component in the aromatherapy cigarette of the present invention is provided by both tobacco extract and tobacco extract particles, and the release process of the two complements each other, maintaining the tobacco component content in the aromatherapy cigarette, and providing consumers with continuous and uniform taste.

The tobacco extract particles in the aromatherapy cigarette have a substrate layer and a coating layer, and the concentration of the tobacco extract in the substrate layer gradually decreases from the inside to the outside, so that the release amount and release rate of the tobacco extract in the particles are uniform, ensuring Improve the uniformity of taste and aroma of new tobacco products.

The porogen in the coating layer enables a smooth transition between the release of the extract from the tobacco extract particles and the release of the extract from the base material of the novel tobacco product.

The extraction solvent and method of the tobacco extract can fully extract active ingredients such as nicotine, and at the same time avoid the generation of other miscellaneous flavors, improve the taste and facilitate the coordinated use of tobacco extract and other flavor additives, and the product is sterile and residue-free, hygienic Safety.

The step-by-step granulation method adopted by the present invention has a multi-layered structure, and can effectively control the tobacco extract content of different substrate layers and the thickness of the substrate layer, etc., ensuring that the prepared tobacco extract particles have Very good uniformity, thereby ensuring the mouthfeel and flavor of the novel tobacco product added with the tobacco extract particles.

Detailed ways

The present invention will be further described below in conjunction with specific examples. Unless otherwise specified, the raw materials, equipment and methods used in the examples of the present invention are commercially available raw materials, commonly used equipment and methods in the art.

Example 1

(1) Preparation of tobacco extract

S11. Take flue-cured tobacco with an absolute dry mass of 100g, add 1400g of water to soak at 60°C for 25min, cool to about 20°C, and extract it ultrasonically for 60min at 25±2°C. The power of the ultrasonic wave is 300W, and then vacuum suction and filter , to obtain filter residue a and filtrate a;

S12. After adding ethanol 7 times the absolute dry mass of the filter residue a to the filter residue a of S11, ultrasonically extract for 30 minutes at 25±2°C, the power of the ultrasonic wave is 300W, and then vacuum suction and filter to obtain the filter residue b and filtrate b ;

S13. Mix the filtrate a and the filtrate b, and concentrate in vacuum at 25°C to a solid content of 15%, to obtain the tobacco extract.

(2) Preparation of tobacco extract particles

S21. Mix the tobacco extract prepared in (1) with the starch evenly, and add an appropriate amount of water to make a soft material;

S22. Put the soft material prepared in S21 into an extrusion-spheronizer to granulate. The extrusion sieve plate aperture of the extrusion-spheronizer in S2 is 0.3mm; the extrusion speed is 120r/min; The rotation speed is 300r/min; the spheronization time is 5min; then the drying temperature is 42°C; the core material with a particle size of 300um-400um is obtained by sieving, and the content of tobacco extract in the core material is 50%.

S23. preparing a first fluid dynamic mixture of tobacco extract and starch;

Put the core material prepared by S22 into a fluidized bed granulator, adjust the parameters of the fluidized bed granulator, make the core material in a fluidized state, and spray the first flow of dynamic mixture. The main technological conditions of the fluidized bed granulator are: the air intake volume is 500m ³ /h, the fluidization temperature is 40°C, the atomizing gas pressure is 0.2Mpa; the concentration of the first fluid dynamic mixture is 8%, and the spray flow rate is 0.9ml /min. After drying, a first substrate layer is formed on the surface of the core material, and the first particles with a particle size of 400um to 500um are obtained by sieving, and the content of tobacco extract in the first substrate layer is 40%.

S24. Prepare a second fluid mixture of tobacco extract and excipient;

Put the first particles prepared in S23 into a fluidized bed granulator, adjust the parameters of the fluidized bed granulator, make the first particles in a fluidized state, and spray into the second fluidized mixture. The main process conditions of the fluidized bed granulator are: the air intake volume is 600m ³ /h, the fluidization temperature is 43°C, the atomizing gas pressure is 0.3Mpa; the concentration of the second flow dynamic mixture is 7%, and the spray flow rate is 0.8 ml/min. After drying, a second substrate layer is formed on the surface of the first particles, and the second particles with a particle size of 600um-700um are obtained by sieving, and the content of tobacco extract in the second substrate layer is 30%.

S25. Prepare a third fluid dynamic mixture of tobacco extract and excipient;

Put the second particles prepared in S24 into a fluidized bed granulator, adjust the parameters of the fluidized bed granulator, make the second particles in a fluidized state, and spray them into the third fluid dynamic mixture. The main technological conditions of the fluidized bed granulator are: the air intake volume is 800m ³ /h, the fluidization temperature is 45°C, the atomizing gas pressure is 0.4Mpa; the concentration of the third fluid dynamic mixture is 9%, and the spray flow rate is 0.6 ml/min. After drying, a third substrate layer is formed on the surface of the second particles, and the third particles with a particle size of 700um-800um are obtained by sieving, and the content of tobacco extract in the third substrate layer is 20%.

S26. Prepare a coating solution; the coating solution is composed of microcrystalline cellulose, polyvinyl alcohol and an appropriate amount of water, the mass ratio of microcrystalline cellulose to polyvinyl alcohol is 9:1, and the concentration of the coating solution is 9%.

Put the third granule prepared in S25 into a fluidized bed granulator, adjust the parameters of the fluidized bed granulator, make the third granule in a fluidized state, and spray it into the coating solution. The main technological conditions of the fluidized bed granulator are: the air intake volume is 800m ³ /h, the fluidization temperature is 45°C, the atomizing gas pressure is 0.4Mpa; the spray flow rate is 0.6ml/min. After drying, a coating layer is formed on the surface of the third granules, and sieved to obtain tobacco extract granules with a particle size of 800um-900um.

The core material, the first base material layer, the second base material layer and the third base material layer account for the same mass fraction of the tobacco extract particles.

(3) Preparation of aromatherapy cigarettes

S31. Get 30g of wood fibers to decompose, beat, and adjust the concentration to obtain 8% plant fiber slurry;

S32. After mixing and stirring the plant fiber slurry of S31 with 23g of tobacco extract particles, 25g of bamboo charcoal powder, and 7g of methylcellulose, papermaking, dehydration, stamping, low-temperature drying and dehydration, the base material of aromatherapy tobacco is obtained;

S33. Spray 12g of tobacco extract on the above-mentioned scented tobacco substrate of S32 to obtain scented cigarettes.

Embodiment 2～3 and comparative example 1～3

The preparation steps of the tobacco extracts and tobacco extract particles of Examples 2-3 of the present invention and Comparative Examples 1-3 are similar to those of Example 1, except that they are as shown in the following table:

Process parameters Example 2 Example 3 Comparative example 1 Comparative example 2 Comparative example 3 S11 Amount of water added, g 1300 1500 1200 1600 1500 S12 The amount of ethanol added, times 6 8 5 9 8 S11/S12 ultrasonic temperature, ℃ 20±2 25±2 20±2 35±2 25±2 S11/S12 ultrasonic power, W 250 350 300 250 300 S21 Excipients dextrin microcrystalline cellulose dextrin microcrystalline cellulose microcrystalline cellulose S22 extrusion speed, r/min 80 150 70 160 150 S22 Rolling speed, r/min 250 350 240 360 350 S23/ S24/ S25 fluidization temperature, ℃ 40 45 35 50 45 S23/ S24/ S25 spray flow ml/min 0.6 0.9 0.5 1.0 0.9 S23/ S24/ S25 atomizing gas pressure, Mpa 0.2 0.4 0.1 05 0.4 S26 Coating material/pore former Gum Arabic/Sorbitol Polyvinyl Alcohol/Methyl Cellulose Gum Arabic/Sorbitol polyvinyl alcohol/no Polyvinyl Alcohol/Methyl Cellulose Whether S22～S26 are screened separately yes yes yes yes no

The preparation process of aromatherapy cigarette is as follows:

Example 2 Example 3 Comparative example 1 Comparative example 2 Comparative example 3 Tobacco Extract 3g Tobacco Extract 15g Tobacco Extract 10g Tobacco Extract 3g Tobacco Extract 15g Charcoal powder 50g Bamboo charcoal powder 10g Bamboo charcoal powder 25g Charcoal powder 50g Bamboo charcoal powder 10g Secondary fiber 35g Bamboo fiber 35g Wood fiber 30g Secondary fiber 35g Bamboo fiber 35g Elm bark powder 5g Bakelite powder 1g Methylcellulose 7g Elm bark powder 5g Bakelite powder 1g Tobacco extract particles 5g Tobacco extract particles 30g Tobacco extract particles 17g Tobacco extract particles 5g Tobacco extract particles 30g

Comparative example 4

(1) Preparation of tobacco extract

S11. Take flue-cured tobacco with an absolute dry mass of 100g, add 1400g of water to soak it at 60°C for 25min, cool it to about 20°C, add 700g of ethanol solution, and extract it ultrasonically for 90min at 25±2°C. The power of the ultrasonic wave is 300W, then vacuum suction filtration to obtain filter residue a and filtrate a;

S12. Concentrate the filtrate a under vacuum at 25°C to a solid content of 15% to obtain a tobacco extract.

(2) Preparation of tobacco extract particles: refer to the steps and method of Example 1 to prepare tobacco extract particles.

(3) Preparation of aromatherapy cigarettes: refer to the steps and methods in Example 1 to prepare aromatherapy cigarettes.

Comparative example 5

(1) Preparation of tobacco extract: refer to the steps and method of Example 1 to prepare tobacco extract.

(2) Preparation of tobacco extract particles

S21. Mix the tobacco extract and starch prepared in (1) evenly to make a mixture with a concentration of 8%;

S22. Granulate the mixture prepared in S21 with a fluidized bed granulator. The main technological conditions of the fluidized bed granulator are: the air intake volume is 500m ³ /h, the fluidization temperature is 40°C, the atomizing gas pressure is 0.2Mpa; the concentration of the first fluid dynamic mixture is 8%, and the spray flow rate is 0.9ml /min. After drying, sieve to obtain particles with a particle size of 700um-800um, the content of tobacco extract in the particles is 35% (the average value of the tobacco extract content of each layer of the tobacco extract particles in Example 1).

S23. Prepare a coating solution; the coating solution is composed of microcrystalline cellulose, polyvinyl alcohol and an appropriate amount of water, the mass ratio of microcrystalline cellulose to polyvinyl alcohol is 9:1, and the concentration of the coating solution is 9%.

Put the particles prepared in S22 into a fluidized bed granulator, adjust the parameters of the fluidized bed granulator to make the particles in a fluidized state, and spray into the coating solution. The main technological conditions of the fluidized bed granulator are: the air intake volume is 800m ³ /h, the fluidization temperature is 45°C, the atomizing gas pressure is 0.4Mpa; the spray flow rate is 0.6ml/min. After drying, a coating layer is formed on the surface of the third granules, and sieved to obtain tobacco extract granules with a particle size of 800um-900um.

(3) Preparation of aromatherapy cigarettes: refer to the steps and methods in Example 1 to prepare aromatherapy cigarettes.

Comparative example 6

(1) Preparation of tobacco extract: refer to the steps and method of Example 1 to prepare tobacco extract.

(2) Preparation of tobacco extract particles: refer to the steps and method of Example 1 to prepare tobacco extract particles.

(3) Preparation of aromatherapy cigarettes

S31. Get 30g of wood fibers to decompose, beating, and adjust the concentration to obtain 8% plant fiber slurry;

S32. After mixing and stirring the plant fiber slurry of S31, 25g of bamboo charcoal powder, and 7g of methyl cellulose, papermaking, dehydration, stamping, drying at low temperature to remove water, to obtain an aromatherapy tobacco base material;

S33. Spray 12g of tobacco extract on the above-mentioned scented tobacco substrate of S32 to obtain scented cigarettes.

Effect evaluation

Select 15 evaluators who usually have smoking habits, light the aromatherapy cigarettes in a room for tasting, score according to the taste, fragrance retention, texture and other indicators of the aromatherapy cigarettes, and obtain the average value and record it in the table below. Evaluation standard:

Aroma: strong aroma (10-8 points), moderate aroma (6-4 points), light aroma (2-1 points)

Strength: moderate strength (10-8 points), high strength (2-1 points), low strength (2-1 points)

Flavor retention (that is, the release persistence of tobacco extract in aromatherapy cigarettes): release time of 8 to 10 minutes (10 to 8 minutes), release time of less than 6 minutes (6 to 4 minutes), release time of 4 minutes (2 to 1 minute) point)

Uniformity of taste (that is, the fluctuation and change of taste, and evaluate the release uniformity of tobacco extract particles): uniform taste (10-8 points), relatively uniform taste (6-4 points), large taste fluctuation (2-1 points )

Irritation: small (10-8 points), medium (6-4 points), large (2-1 points)

Miscellaneous odors: slight (10-8 points), heavy (6-4 points), severe (2-1 points)

The evaluation results are as follows:

Sample/Indicator Example 1 Example 2 Example 3 Comparative example 1 Comparative example 2 Comparative example 3 Comparative example 4 Comparative example 5 Comparative example 6 aroma 10 9 10 4 2 2 1 1 5 energy 10 10 8 4 4 1 1 1 1 Fragrance 10 8 9 6 2 2 4 1 4 uniformity of taste 10 9 10 4 5 1 5 2 1 irritant 10 10 9 5 5 2 1 1 4 Miscellaneous 10 9 10 4 3 1 1 1 1 total 60 51 56 27 twenty one 9 13 7 16

According to the above analysis and evaluation, it can be seen that the tobacco extract particles in the cigarettes prepared in Examples 1-3 of the present invention have uniform release amount and release rate, long-lasting sustained release effect, long-lasting aroma and no miscellaneous taste. The tobacco extract particles in the aromatherapy cigarettes prepared in Comparative Examples 1 and 2 are poor in many indicators due to the uncoordinated production process conditions. The coating of Comparative Example 2 does not use a porogen, and its release is uniform The toxicity is worse, the release of the tobacco extract in the aromatherapy cigarette and the release of the tobacco extract in the particles cannot be smooth and excessive, and the irritation is greater; the extraction temperature of Comparative Example 2 is higher than 30°C, so that more tobacco is lost during the extraction process. The volatile active ingredients of tobacco make its aroma concentration poor. In Comparative Example 3, because the particles were not screened in each link during the particle preparation process, the content of tobacco extract in the final tobacco extract particles was uneven, and the density of the particles was also quite different, making the strength and taste uniformity As well as off-flavors and textures etc. are poor. In Comparative Example 4, due to the one-step extraction of tobacco, the content of active ingredients in the tobacco extract is relatively low, and there are many impurities, which makes the evaluation of its aroma concentration, strength, and miscellaneous taste very poor. Comparative Example 5 adopts the process of direct spray granulation, and the strength of the tobacco extract particles is relatively large, and the evaluation of sustained release effect, taste uniformity and texture are all poor. The aromatized cigarette prepared in Comparative Example 6 is not added with tobacco extract particles, which makes the indicators such as the strength and taste uniformity of the aromatherapy cigarette worse.

Claims (10)

1. An aromatherapy cigarette, is characterized in that, comprises functional component, charcoal powder, plant fiber, binding agent; Described functional component is tobacco extract and tobacco extract particle; The tobacco extract accounts for 3% to 15% of the mass of the cigarette; the tobacco extract particles account for 5% to 30% of the mass of the cigarette; The tobacco extract particles include at least two substrate layers with different tobacco extract contents; the substrate layers are coated layer by layer, the surface of the substrate layer is coated with a coating layer, and the substrate layer contains Excipient: the content of tobacco extract in the base material layer of the tobacco extract particles gradually decreases from the inside to the outside. 2. The aromatherapy cigarette according to claim 1, characterized in that, the aromatherapy cigarette is composed of the following mass percentages: Tobacco extract 3% ~ 15%; tobacco extract particles 5% ~ 30%; carbon powder 10% ~ 50%; plant fiber 10% ~ 35%; binder 1% ~ 10%; The tobacco extract particles include at least two substrate layers with different tobacco extract contents; the substrate layers are coated layer by layer, the surface of the substrate layer is coated with a coating layer, and the substrate layer contains Excipient: the content of tobacco extract in the base material layer of the tobacco extract particles gradually decreases from the inside to the outside. 3. according to the described aroma cigarette of claim 1, it is characterized in that, the extraction method of described tobacco extract comprises the following steps: S11. Adding water to the tobacco, soaking it at 60°C-70°C, cooling, ultrasonic extraction at no higher than 30°C, and filtering to obtain filter residue a and filtrate a; S12. After adding ethanol to the filter residue a of S11, ultrasonically extract and filter under the condition of not higher than 30° C. to obtain filter residue b and filtrate b; S13. The filtrate a and the filtrate b are mixed and concentrated to obtain the tobacco extract. 4. The aromatherapy cigarette according to claim 1, characterized in that the particle diameter of the tobacco extract particles is 100um-1000um. 5. The aromatherapy cigarette according to claim 1, characterized in that, the material of the coating also contains a porogen; the porogen is sucrose, sorbitol, mannitol, polyethylene glycol, hydroxypropyl One or more of methyl cellulose and hydroxypropyl cellulose. 6. The aromatherapy cigarette according to claim 2, characterized in that the mass ratio of the absolute dry mass of tobacco to water in S11 is 1:13-15; the mass ratio of the absolute dry mass of filter residue a to ethanol in S12 is 1: 6-8; in S11 and S12, the power of ultrasound is 250W-350W, the time of ultrasound is 30min-70min, and the temperature of ultrasound is 20℃-30℃. 7. A method for preparing tobacco extract particles according to any one of claims 1 to 6, characterized in that it comprises the following steps: S21. Mix the tobacco extract and excipient evenly, add water to make soft material; S22. Put the soft material prepared in S21 into an extrusion-spheronizer to granulate, then dry and sieve to obtain a core material; S23. Preparation of a first fluid dynamic mixture of tobacco extract and excipients; Put the core material prepared by S22 into the fluidized bed granulator, adjust the parameters of the fluidized bed granulator, make the core material in a fluidized state, spray the first flow dynamic mixture, and form on the surface of the core material after drying The first base material layer is sieved to obtain the first particles; S24. Prepare the Nth flow-dynamic mixture of tobacco extract and excipient, said N≥2; Put the first particles prepared in S23 into a fluidized bed granulator, adjust the parameters of the fluidized bed granulator, make the first particles in a fluidized state, spray into the Nth fluid dynamic mixture, and dry them in the next The Nth substrate layer is formed on the surface of a particle, and the Nth particle is obtained by sieving; S25. Prepare a coating solution; Put the Nth particles prepared in S24 into the fluidized bed granulator, adjust the parameters of the fluidized bed granulator, make the Nth particles in a fluidized state, spray into the coating solution, and dry the Nth particles A coating layer is formed on the surface, and the tobacco extract particles are obtained by sieving; Wherein, the tobacco extract content of the core material>the tobacco extract content of the first substrate layer>the tobacco extract content of the Nth substrate layer. 8. The method for preparing tobacco extract particles according to claim 7, characterized in that the aperture of the extrusion sieve plate of the extrusion-spheronizer in S22 is 0.2-0.4mm; the extrusion speed is 80r/min-150r /min; the spheronization speed is 250r/min-350r/min; the spheronization time is 3min-6min; the drying temperature is 40-45°C; the particle size of the core material is 300um-500um. 9. The method for preparing tobacco extract particles according to claim 8, characterized in that the process conditions of the fluidized bed granulator in S23, S24 and S25 are: the air intake volume is 500m ³ /h～800m ³ /h, The fluidization temperature is 40-45°C, the atomizing gas pressure is 0.2Mpa-0.4Mpa; the concentration of the first fluid dynamic mixture, the N-th fluid dynamic mixture, and the coating solution is 6%-10%, and the spray flow rate is 0.6ml/min ~0.9ml/min. 10. A method for preparing an aromatherapy cigarette according to any one of claims 1 to 6, characterized in that it comprises the following steps: S31. After mixing the tobacco extract, filler, flavoring agent, and binder according to the mass percentage, add water and/or ethanol and stir to make a soft material; S32. After uniformly mixing the soft material prepared in S31 with tobacco extract particles, granulate, add a lubricant, mix evenly, press into tablets, and dry to obtain aromatherapy cigarettes.