Multifunction filter rod, method for preparing the same and cigarette

Abstract

The application provides a multifunctional filter rod, a preparation method thereof and a cigarette. The preparation method comprises the following steps: A) taking a polymer material as a wall material and taking an ultrafine powder mixture as a core material, and obtaining a characteristic flavor raw material molecule microcapsule through a microcapsule process; wherein, based on 100 parts by mass of the wall material, the ultrafine powder mixture comprises 40-60 parts by mass of Schisandra chinensis branch ultrafine powder, 20-40 parts by mass of apple pear ultrafine powder and 10-30 parts by mass of Rubus corchorifolius L.f. ultrafine powder; B) adding the characteristic flavor raw material molecule microcapsule into a rod bundle to obtain the multifunctional filter rod. The multifunctional filter rod prepared by the application can effectively compensate for the loss of aroma, has elegant characteristic aroma, improves sensory comfort, and can also adsorb and reduce part of harmful components in mainstream smoke.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of tobacco, in particular to a multifunctional filter rod, a preparation method thereof and a cigarette. BACKGROUND

[0002] Smoking and health has been the focus of the whole society, and is one of the main challenges faced by the tobacco industry. During the smoking process, the smoke generated by burning, cracking and distillation of cigarette is very complex, and the harmful ingredients in tar have carcinogenic effect on human body, and nicotine has great harm to the nervous system and cardiovascular system of human body. Based on the actual situation of China's cigarette market, Xie Jianping et al. screened out 7 most representative harmful ingredients in mainstream cigarette smoke, which are CO (carbon monoxide), HCN (hydrogen cyanide), NNK (4-methyl nitrosamino-1-(3-pyridine)-1-butanone), NH3, B[a]P (benzo[a]pyrene), phenol and croton aldehyde. In recent years, the development of harm reduction and low-hazard cigarettes has been an important direction of cigarette design and development in the tobacco industry, that is, the release amount of the 7 representative harmful ingredients in the developed products can be minimized.

[0003] The "harm reduction" and "tar reduction" of cigarette are two different concepts. There are a large number of harmful substances in tar, so the purpose of "harm reduction" of cigarette product can be achieved by greatly reducing tar. Adsorption material harm reduction is the main way to reduce the release amount of harmful ingredients in cigarette smoke in the tobacco industry, and filter rod is crucial in cigarette, which can effectively filter out part of the harmful ingredients in mainstream smoke, but in this process, the aroma substances in tar and other satisfying ingredients are also greatly reduced, so that the original attractive cigarette product loses its original appeal. At the same time, the content of some harmful substances is not positively correlated with the amount of tar. The core of Chinese cigarette production is "low tar, low hazard and high aroma". How to reduce the content of harmful ingredients and tar in cigarette and prevent the loss of aroma substances in tobacco and improve the aroma of cigarette has been a major problem faced by the tobacco processing industry. Harm reduction without reducing aroma is the ultimate goal of cigarette harm reduction.

[0004] Therefore, how to solve the problem of short-lasting aroma, poor sensory comfort and weak characteristic style of low-tar cigarette, and meet the quality demand of consumers for cigarette products, has important significance for improving the smoking comfort of cigarette. SUMMARY

[0005] Therefore, the present application provides a multifunctional filter rod, a preparation method thereof and a cigarette. The multifunctional filter rod prepared by the present application can effectively compensate for the loss of aroma, has elegant characteristic aroma, improve the sensory comfort, and can also adsorb and reduce part of the harmful ingredients in mainstream smoke.

[0006] The application provides a preparation method of a multifunctional filter rod, comprising the following steps:

[0007] A) obtaining embedding characteristic flavor raw material molecular microcapsules by microcapsule process with high molecular material as wall material and super fine powder mixture as core material;

[0008] wherein,

[0009] The super fine powder mixture comprises, based on 100 parts by mass of the wall material:

[0010] 40-60 parts by mass of Schisandra chinensis branch super fine powder;

[0011] 20-40 parts by mass of Malus xiaojinensis super fine powder;

[0012] 10-30 parts by mass of Rubus corchorifolius super fine powder;

[0013] B) adding the embedding characteristic flavor raw material molecular microcapsules into the rod bundle to obtain the multifunctional filter rod.

[0014] Preferably, in step A), the high molecular material is polyvinyl alcohol-polyethylene glycol copolymer.

[0015] Preferably, in step A), the three kinds of super fine powders are obtained by pretreatment of the corresponding raw materials.

[0016] The pretreatment process comprises selection, impurity removal, slicing, freeze drying and crushing.

[0017] Preferably, step A) specifically comprises:

[0018] A1) mixing the high molecular material with water to obtain a wall material solution;

[0019] A2) mixing the wall material solution with the Schisandra chinensis branch super fine powder, the Malus xiaojinensis super fine powder and the Rubus corchorifolius super fine powder for ultrasonic dispersion to obtain a milk suspension;

[0020] A3) standing the milk suspension, then cooling, then adjusting the pH value to 6-8, then adding glutamine transaminase for solidification treatment to obtain the embedding characteristic flavor raw material molecular microcapsules.

[0021] Preferably, in step A1), the mass ratio of the high molecular material to water is preferably 1:(1-3).

[0022] Preferably, in step A2), acid liquid is added to the system during the ultrasonic dispersion to adjust the pH value.

[0023] Preferably, in step A3), the cooling is to below 10℃.

[0024] Preferably, in step B), the amount of the microcapsules containing the special fragrance raw material molecules is 1% to 10% of the mass of the mouthpiece filament bundle.

[0025] The present invention also provides a multifunctional filter rod prepared by the preparation method described in the above technical solution.

[0026] The present invention also provides a cigarette in which the filter rod is the multifunctional filter rod described in the above technical solution.

[0027] The present invention provides a method for preparing a multifunctional filter rod. Three distinctive aroma-producing raw materials—Schisandra chinensis branch ultrafine powder, apple pear ultrafine powder, and hawthorn ultrafine powder—are mixed in a certain proportion as core materials and then encapsulated with a wall material into molecular microcapsules. These encapsulated microcapsules are then directly added to the filter rod tow to produce a multifunctional filter rod. When used in cigarettes, this multifunctional filter rod can compensate for aroma loss, imparting an elegant and distinctive aroma and improving sensory comfort, while also adsorbing some harmful components in mainstream cigarette smoke. Detailed Implementation

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0029] In this article, the technical features described in an open-ended manner include both closed technical solutions composed of the listed features and open technical solutions that include the listed features.

[0030] The term “and / or” as used herein includes any and all combinations of one or more of the related listed items.

[0031] In this document, numerical ranges are referred to as continuous unless otherwise specified, and include the minimum and maximum values ​​of the range, as well as every value between the minimum and maximum values. Furthermore, when a range refers to an integer, it includes every integer between the minimum and maximum values ​​of the range. Additionally, when multiple ranges are provided to describe a feature or characteristic, the ranges may be combined. In other words, unless otherwise specified, all ranges disclosed herein should be understood to include any and all subranges to which they are incorporated.

[0032] In this article, when referring to units for data ranges, if the unit is only followed by the right endpoint, it indicates that the units for the left and right endpoints are the same. For example, 300~400W means that the units for the left endpoint "300" and the right endpoint "400" are both W.

[0033] Only some numerical ranges are specifically disclosed herein. However, any lower limit can be combined with any upper limit to form a range not explicitly recited; and any lower limit can be combined with any other lower limit to form a range not explicitly recited, as can any upper limit with any other upper limit to form a range not explicitly recited. Further, each individual disclosed point or single numerical value can be combined with any other point or single numerical value, or with other lower or upper limits, to form a range not explicitly recited.

[0034] The present application provides a method for preparing a multifunctional filter rod, comprising the following steps:

[0035] A) obtaining a characteristic flavor raw material molecule microcapsule by microcapsule process, with a high molecular material as wall material and a super fine powder mixture as core material;

[0036] wherein,

[0037] The super fine powder mixture comprises, with 100 parts by mass of the wall material as a reference:

[0038] 40-60 parts by mass of Schisandra chinensis branch super fine powder;

[0039] 20-40 parts by mass of Malus xiaojinensis super fine powder;

[0040] 10-30 parts by mass of Rubus corchorifolius super fine powder;

[0041] B) adding the characteristic flavor raw material molecule microcapsule into a rod bundle to obtain a multifunctional filter rod.

[0042] With respect to Step A) :

[0043] A) obtaining a characteristic flavor raw material molecule microcapsule by microcapsule process, with a high molecular material as wall material and a super fine powder mixture as core material;

[0044] In the present application, the high molecular material is preferably polyvinyl alcohol-polyethylene glycol copolymer. The present application has no special limitation on the source of the high molecular material, which can be a commercially available commercial product or prepared according to the conventional preparation method in the art.

[0045] In the present application, the super fine powder mixture comprises, with 100 parts by mass of the wall material as a reference:

[0046] 40-60 parts by mass of Schisandra chinensis branch super fine powder;

[0047] 20-40 parts by mass of Malus xiaojinensis super fine powder;

[0048] 10-30 parts by mass of Rubus corchorifolius super fine powder.

[0049] wherein,

[0050] The amount of the ultrafine powder of Schisandra chinensis branches is 40-60 parts by weight, specifically 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, and 60 parts. The fineness of the ultrafine powder of Schisandra chinensis branches is preferably 300-500 mesh, specifically 300 mesh, 350 mesh, 400 mesh, 450 mesh, and 500 mesh.

[0051] The amount of the apple-pear ultrafine powder is 20-40 parts by weight, specifically 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, or 40 parts. The fineness of the apple-pear ultrafine powder is preferably 300-500 mesh, specifically 300, 350, 400, 450, or 500 mesh.

[0052] The amount of the hawthorn ultrafine powder is 10-30 parts by weight, specifically 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, or 30 parts. The fineness of the hawthorn ultrafine powder is preferably 300-500 mesh, specifically 300, 350, 400, 450, or 500 mesh.

[0053] In this invention, the three types of ultrafine powders mentioned above are all obtained from corresponding raw materials through pretreatment; for example, the ultrafine powder of Schisandra chinensis branches is obtained from Schisandra chinensis branches through pretreatment, the ultrafine powder of apple pear is obtained from apple pear through pretreatment, and the ultrafine powder of hawthorn is obtained from hawthorn through pretreatment. In this invention, the pretreatment process preferably includes: selection, impurity removal, slicing, freeze-drying, and pulverization. Selection refers to selecting good samples that are not damaged. Impurity removal refers to removing impurities such as moss, fuzz, and soil attached to the branches. Freeze-drying is preferably vacuum freeze-drying to remove moisture from the raw materials. Pulverization specifically involves using an ultrafine plant pulverizer to achieve the target fineness.

[0054] Microcapsule technology is a kind of micron or sub-micron coated material with core-shell structure by using capsule wall material to embed, store solid, liquid or gas. Microcapsule can change the dispersion state of the coated material, reduce its volatility; at the same time, it can overcome some incompatibility of the coated material with other materials around in thermodynamics; when releasing the coated material to the outside world, the permeation and diffusion of the capsule wall can effectively delay the release speed or accelerate the release speed due to its forced rupture, achieving the effect of controlled release. In the present application, the above core material and wall material are prepared into characteristic fragrance raw material molecule microcapsule by microcapsule technology.

[0055] In the present application, the above microcapsule technology preferably specifically includes:

[0056] A1) mixing the high molecular material with water to obtain a wall material solution;

[0057] A2) mixing the wall material solution with Schisandra chinensis branch ultra-fine powder, apple pear ultra-fine powder and Rubus corchorifolius L.f. ultra-fine powder for ultrasonic dispersion to obtain a milk suspension;

[0058] A3) placing the milk suspension, then cooling, then adjusting the pH value to 6-8, then adding glutamine transaminase for solidification treatment to obtain characteristic fragrance raw material molecule microcapsule.

[0059] In the above process, the types and amounts of the high molecular material and each ultra-fine powder are consistent with those described in the technical solutions above, which will not be repeated here.

[0060] Regarding step A1): the mass ratio of the high molecular material to water is preferably 1:(1-3), specifically 1:1, 1:2, 1:3.

[0061] Regarding step A2): the temperature of the ultrasonic dispersion is preferably 35±5℃. The power of the ultrasonic dispersion is preferably 300-400W, specifically 300W, 350W, 400W. The time of the ultrasonic dispersion is preferably 10-30min, specifically 10min, 15min, 20min, 25min, 30min. In the present application, during the above ultrasonic dispersion, acid liquid is preferably added to the system to adjust the pH value. The acid liquid used is preferably acetic acid. The amount of acid liquid is preferably to make the pH value reach 4-6, specifically 4, 5, 6. Through the above ultrasonic dispersion, the wall material is wrapped around the dispersed core material, and the reaction solution becomes a white milk suspension.

[0062] Regarding step A3): After obtaining the milk suspension in step A2), it is preferably allowed to stand for a period of time. The standing time is preferably 30-60 min, in particular 30 min, 40 min, 50 min or 60 min. Subsequently, the system is cooled, in particular using an ice water bath. In the present application, the cooling is preferably to a temperature below 10°C. After cooling, the pH of the system is adjusted to 6-8, in particular 6, 7 or 8. The pH adjusting agent is preferably potassium dihydrogen phosphate. Finally, glutamine transaminase is added for curing. The amount of glutamine transaminase is preferably 0.5-5% by weight of the wall material, in particular 0.5%, 1%, 2%, 3%, 4% or 5%. The curing time is preferably 20-40 min, more preferably 30 min. After curing, the film shell reaches a certain stable state, and the ultrafine powder is adsorbed on the wall material, thereby obtaining the characteristic flavor raw material molecular microcapsule.

[0063] North Schisandra branch is the dried stem of Schisandra chinensis (Turcz.) Baill of Magnoliaceae, which is commonly known as "mountain flower pepper vine" and has the effects of astringing lung and relieving cough, benefiting qi and generating fluid, tonifying and astringing essence, and calming heart and soothing nerves. Apple pear is one of the famous fruits in the cold temperate zone of the north, mainly produced in Yanbian Korean Autonomous Prefecture, Jilin Province. It has a crisp and juicy flesh, a clear and refreshing taste, rich chemical components, a main flavor of fruit and acidity, a secondary flavor of freshness, high nutritional value, and health care functions of drying dampness and invigorating spleen, softening blood vessels, harmonizing stomach and relieving vomiting and diarrhea, and relieving phlegm and cough. Mountain red is a deciduous tree of the genus Crataegus in Rosaceae, and the fruit has a strong sweet and sour flavor with a slight floral and woody bottom note. It has medicinal value and can dispel fluid, resolve meat accumulation, and phlegm and fluid retention. In the present application, the above three characteristic flavor raw materials are mixed in a certain proportion to form the core material, which is then encapsulated with the wall material to obtain the characteristic flavor raw material molecular microcapsule. When used in filter rods, the encapsulated characteristic flavor raw material molecular microcapsule can compensate for the loss of aroma, has elegant characteristic aroma, and can adsorb part of the harmful components in mainstream smoke.

[0064] With respect to Step B) :

[0065] B) adding the encapsulated characteristic flavor raw material molecular microcapsule to the mouthpiece tow to obtain a multifunctional filter rod.

[0066] A filter rod, commonly known as a "cigarette holder", generally comprises a forming paper and a core material filled in the cavity surrounded by the forming paper. In the present application, the encapsulated characteristic flavor raw material molecular microcapsule obtained in step A) is added to the mouthpiece tow (i.e. the core material of the mouthpiece) to obtain a multifunctional filter rod. The preparation process of the filter rod is not particularly limited in the present application, and can be carried out according to the conventional process in the art, except that the encapsulated characteristic flavor raw material molecular microcapsule obtained in step A) is added during the preparation process.

[0067] In the present application, the amount of the embedded characteristic flavor raw material molecular microcapsule is preferably 1% to 10% of the mass of the mouth rod filament bundle, and can be specifically 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, or 10%.

[0068] The present application also provides a multifunctional filter rod prepared by the preparation method.

[0069] The present application also provides a cigarette, wherein the filter rod is the multifunctional filter rod.

[0070] The preparation method of the multifunctional filter rod provided by the present application uses the three characteristic flavor raw material ultrafine powders, i.e., Schisandra chinensis branch ultrafine powder, apple pear ultrafine powder, and Rubus corchorifolius L.f. ultrafine powder, as the core material, and the wall material is used for molecular microcapsule embedding to prepare the embedded characteristic flavor raw material molecular microcapsule, which is directly added to the mouth rod filament bundle to prepare the multifunctional filter rod. When the multifunctional filter rod is used in a cigarette, it can not only compensate for the loss of aroma, has elegant characteristic aroma, and improve the sensory comfort, but also can adsorb part of the harmful components in mainstream smoke.

[0071] The present application uses the above specific raw materials and combines the microcapsule technology to promote the forward movement of the cigarette aroma compensation technology, systematically optimize the function of the characteristic flavor raw material, and the essence used in the filter aroma and the microcapsule technology does not need to be subjected to high-temperature combustion, but is directly added to the mouth rod filament bundle, and the aroma components are directly eluted into the oral cavity by the high-temperature airflow generated during the combustion of the cigarette, and are fused with the smoke, so that the aroma effect is obvious, and the smoking taste of the cigarette can be greatly improved and the aroma characteristics can be maintained. The direct addition of the characteristic flavor raw material to the filter of the cigarette has the following advantages: 1. the loss and pyrolysis of the flavor during the storage and smoking process of the cigarette can be avoided; 2. the loss of the flavor during the static combustion of the cigarette can be avoided; 3. the interception of the flavor by the tobacco and the filter can be reduced, and the transfer efficiency can be increased; 4. a variety of flavoring methods can be used to comprehensively improve the embodiment of the characteristic style; and 5. the molecular microcapsule can adsorb part of the harmful components in the mainstream smoke. The application of the molecular microcapsule to the filtration of the cigarette smoke can develop the comprehensive effect evaluation of the application quality, such as the detection of the conventional components, the representative harmful substances, and the sense. The implementation of the present application can develop a new type of adsorption harm-reducing material with reduced harm and unchanged aroma, and provide valuable references for the application technology of the new type of adsorption harm-reducing material and the research on smoking and health.

[0072] Compared with the prior art, the present application has the following beneficial effects:

[0073] 1. The multifunctional filter rod concept is used to promote the forward movement of the cigarette aroma compensation technology, systematically optimize the function of the characteristic flavor raw material, improve the comfort of the cigarette, and the operation process is simple, the equipment process requirement is low, and the processing efficiency is high.

[0074] 2. Adopting filter tip flavoring and microcapsule technology, the release speed can be effectively delayed or accelerated due to forced rupture, the effect of controlled release is achieved, the essence does not need to be combusted at high temperature, the flavor components are directly eluted by the high-temperature airflow generated by the cigarette combustion and taken into the oral cavity, the flavoring effect is obvious, the smoking taste of the cigarette can be greatly improved and the flavor characteristics can be maintained.

[0075] 3. The problem that the flavor is not persistent and the sensory comfort is poor in low-tar cigarettes, which causes the characteristic style of the cigarette to be weakened, can be solved, and the molecular microcapsules can adsorb part of harmful components in mainstream smoke, achieving the goal of "reducing harm without reducing flavor".

[0076] In order to further understand the present application, the preferred embodiments of the present application are described below in conjunction with examples, but it should be understood that these descriptions are only for further illustrating the features and advantages of the present application, and are not limitations on the claims of the present application.

[0077] Example 1

[0078] Pre-treatment of characteristic flavor raw materials: the three raw materials of Schisandra chinensis branch, apple pear and mountain red were selected, impurities were removed, sliced, vacuum freeze-dried to remove water, and finally pulverized to 400 mesh by an ultra-fine plant pulverizer to obtain Schisandra chinensis branch ultra-fine powder, apple pear ultra-fine powder and mountain red ultra-fine powder, respectively.

[0079] A1) Polyvinyl alcohol-polyethylene glycol copolymer and water were mixed in a mass ratio of 1:2 to obtain a wall material solution.

[0080] A2) The wall material solution, Schisandra chinensis branch ultra-fine powder, apple pear ultra-fine powder and mountain red ultra-fine powder were placed in a reaction bottle and subjected to ultrasonic dispersion treatment; the ultrasonic temperature was 35℃, the ultrasonic power was 350W, and the ultrasonic time was 20min; during the above ultrasonic dispersion treatment, acetic acid was added dropwise to adjust the pH value of the system to 5, thereby obtaining a white emulsion suspension.

[0081] The dosages of the raw materials are as follows:

[0082]

[0083] A3) The white emulsion suspension was allowed to stand for 45min, then cooled to 0℃ with ice water, potassium dihydrogen phosphate was added to adjust the pH value to 7, then glutamine transaminase (the dosage was 2% of the mass of the wall material) was added for solidification treatment for 30min, to obtain the characteristic flavor raw material molecular microcapsules.

[0084] B) The characteristic flavor raw material molecular microcapsules were directly added to the mouth stick filament bundle (the dosage of the characteristic flavor raw material molecular microcapsules was 5% of the mass of the filament bundle), to prepare a multifunctional filter stick.

[0085] Example 2

[0086] The characteristic flavor raw material is pretreated by selecting, removing impurities, slicing, vacuum freeze-drying, and finally pulverized to 500 mesh by a super micro plant grinder to obtain the Schisandra chinensis branch super micro powder, apple pear super micro powder, and mountain red super micro powder.

[0087] A1) The polyvinyl alcohol-polyethylene glycol copolymer is mixed with water at a mass ratio of 1:3 to obtain a wall material solution.

[0088] A2) The wall material solution is placed in a reaction bottle with the Schisandra chinensis branch super micro powder, apple pear super micro powder, and mountain red super micro powder, and ultrasonic dispersion treatment is performed; the ultrasonic temperature is 40°C, the ultrasonic power is 400W, and the ultrasonic time is 30min; during the ultrasonic dispersion treatment, acetic acid is added dropwise to adjust the pH value of the system to 6, thereby obtaining a white emulsion suspension.

[0089] The dosages of the raw materials are as follows:

[0090]

[0091] A3) The white emulsion suspension is allowed to stand for 60min, then cooled to 5°C with ice water, and then potassium dihydrogen phosphate is added to adjust the pH value to 8, and then glutamine transaminase (an amount of 5% of the wall material) is added for solidification treatment for 30min, to obtain the characteristic flavor raw material molecular microcapsules.

[0092] B) The characteristic flavor raw material molecular microcapsules are directly added to the mouth rod filaments (the amount of the characteristic flavor raw material molecular microcapsules is 5% of the mass of the filaments), to obtain the multifunctional filter rod.

[0093] Example 3

[0094] The characteristic flavor raw material is pretreated by selecting, removing impurities, slicing, vacuum freeze-drying, and finally pulverized to 300 mesh by a super micro plant grinder to obtain the Schisandra chinensis branch super micro powder, apple pear super micro powder, and mountain red super micro powder.

[0095] A1) The polyvinyl alcohol-polyethylene glycol copolymer is mixed with water at a mass ratio of 1:1 to obtain a wall material solution.

[0096] A2) The wall material solution is placed in a reaction bottle with the Schisandra chinensis branch super micro powder, apple pear super micro powder, and mountain red super micro powder, and ultrasonic dispersion treatment is performed; the ultrasonic temperature is 30°C, the ultrasonic power is 300W, and the ultrasonic time is 10min; during the ultrasonic dispersion treatment, acetic acid is added dropwise to adjust the pH value of the system to 4, thereby obtaining a white emulsion suspension.

[0097] The amounts of each raw material are as follows:

[0098]

[0099] A3) The white emulsion suspension was allowed to stand for 30 min, then cooled to 8°C with ice water, and potassium dihydrogen phosphate was added to adjust the pH to 6. Then glutamine transaminase (0.5% of the mass of the wall material) was added for solidification treatment for 30 min, to obtain the microcapsules embedding characteristic flavor raw material molecules.

[0100] B) The microcapsules embedding characteristic flavor raw material molecules were directly added to the mouth stick strands (the amount of the microcapsules embedding characteristic flavor raw material molecules was 5% of the mass of the strands), to obtain the multifunctional filter rods.

[0101] Example 4

[0102] Pretreatment of the characteristic flavor raw materials: The three raw materials, Schisandra chinensis branches, apples, and Rubus corchorifolius L.f., were respectively selected, impurities were removed, sliced, and vacuum freeze-dried to remove water. Finally, the super-micro plant grinder was used to grind them to 400 mesh, to obtain the Schisandra chinensis branch super-micro powder, apple super-micro powder, and Rubus corchorifolius L.f. super-micro powder, respectively.

[0103] A1) Polyvinyl alcohol-polyethylene glycol copolymer and water were mixed in a mass ratio of 1:2 to obtain a wall material solution.

[0104] A2) The wall material solution and the Schisandra chinensis branch super-micro powder, apple super-micro powder, and Rubus corchorifolius L.f. super-micro powder were placed in a reaction bottle for ultrasonic dispersion treatment; the ultrasonic temperature was 35°C, the ultrasonic power was 350 W, and the ultrasonic time was 20 min. During the above ultrasonic dispersion treatment, acetic acid was added dropwise to adjust the pH of the system to 5, to obtain a white emulsion suspension.

[0105] The amounts of each raw material are as follows:

[0106]

[0107] A3) The white emulsion suspension was allowed to stand for 45 min, then cooled to 0°C with ice water, and potassium dihydrogen phosphate was added to adjust the pH to 7. Then glutamine transaminase (1% of the mass of the wall material) was added for solidification treatment for 30 min, to obtain the microcapsules embedding characteristic flavor raw material molecules.

[0108] B) The microcapsules embedding characteristic flavor raw material molecules were directly added to the mouth stick strands (the amount of the microcapsules embedding characteristic flavor raw material molecules was 10% of the mass of the strands), to obtain the multifunctional filter rods.

[0109] Comparative Example 1

[0110] According to the implementation of Example 1, except that in step B), the amount of the microcapsules embedding characteristic flavor raw material molecules added was 20% of the mass of the strands.

[0111] Comparative Example 2

[0112] According to the implementation of Example 1, except that the Schisandra chinensis branch ultrafine powder is not added.

[0113] Comparative Example 3

[0114] According to the implementation of Example 1, except that the Malus prunifolia ultrafine powder is not added.

[0115] Product testing :

[0116] 1. Sensory evaluation

[0117] The multifunctional filter rods obtained in Examples 1-4 and Comparative Examples 1-3 are used in Changbai Mountain (Shenyun) cigarettes, and the finished product cigarettes are balanced in a constant temperature and humidity box (relative humidity 60±5%, temperature 20±2℃) for 24h. The aroma style characteristics are evaluated according to the corresponding index evaluation method of GB5606.4---2005 cigarette sensory quality, and are evaluated by 7 or more professional and technical personnel with national or provincial cigarette sensory quality evaluation qualification certificates. A total of 6 indexes of "luster", "aroma", "harmony", "miscellaneous gas", "stimulation", and "aftertaste" are scored and evaluated. The corresponding index score ranges are: 0-5 points, 0-32 points, 0-6 points, 0-12 points, 0-20 points, and 0-25 points. The sensory quality score is the total score of the above 6 items. The evaluation results are shown in Table 1. Among them, the score of each item is the average value of 7 sample data (the higher the score, the better the evaluation effect of the corresponding item. For example, the higher the aroma score, the better the aroma quality and aroma quantity; the higher the stimulation score, the lower the stimulation, and the better the evaluation of the evaluator; and so on).

[0118] Table 1: Evaluation results

[0119]

[0120]

[0121] As can be seen from the test results in Table 1, the characteristic flavor raw material molecular microcapsules prepared by adding Schisandra chinensis branch, Malus prunifolia, and Aronia melanocarpa ultrafine powders in specific proportions and compositions in Examples 1-4 are applied to filter rod cigarettes, have spicy, fruity, sweet, slightly sour, and smoky flavors, increase the richness of aroma, increase the smoothness and concentration of aroma, improve the aroma quality, are well harmonized with tobacco aroma, reduce the irritation, have obvious flavor-adding effect, can greatly improve the smoking taste of cigarettes and maintain the flavor characteristics.

[0122] 2. Detection of seven harmful components in cigarette smoke

[0123] The multifunctional filter rods obtained in Examples 1-4 and Comparative Examples 1-3 were used in cigarettes to make finished cigarettes, which were then equilibrated in a constant temperature and humidity chamber (relative humidity 60±5%, temperature 22±2℃) for 48 hours. Seven harmful components in the mainstream cigarette smoke were detected using GB / T23356-2009, YC / T 377-2019, YC / T 253-2019, YC / T 225-2008, YC / T 254-2008, GB / T 21130-2007, and YQ / T 17-2012. The test results are shown in Table 2.

[0124] Table 2: Detection Results of Seven Harmful Components in Cigarette Smoke

[0125]

[0126] As can be seen from the test results in Table 2, the multifunctional filter rods prepared by adding raw materials with specific proportions and compositions in Examples 1-4 of this invention, when applied to cigarette products, show certain regularities in the values ​​of harmful components CO, HCN, NNK, and B[a]P in the mainstream smoke. The values ​​of NH3, phenol, and crotonaldehyde do not change significantly. Compared with Comparative Examples 1-3, the values ​​of the seven harmful components CO, HCN, NNK, and B[a]P in the cigarette smoke of Examples 1-4 are significantly reduced, and the hazard evaluation index also shows a downward trend, indicating an improvement in the sensory quality and safety of the cigarettes.

[0127] This document uses specific examples to illustrate the principles and implementation methods of the present invention. The descriptions of these embodiments are merely to aid in understanding the method and core ideas of the present invention, including the best mode, and to enable any person skilled in the art to practice the present invention, including manufacturing and using any device or system, and implementing any combined method. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the scope of protection of the claims. The scope of protection of this patent is defined by the claims and may include other embodiments that can be conceived by those skilled in the art. If these other embodiments have structural elements similar to those expressed in the claims, or if they include equivalent structural elements that are not substantially different from those expressed in the claims, then these other embodiments should also be included within the scope of the claims.

Claims

1. A method for preparing a multifunctional filter rod, characterized in that, Includes the following steps: A1) Mix the polymer material with water to obtain a wall material solution; A2) The wall material solution is mixed with ultrafine powders of Schisandra chinensis branches, apple pear, and hawthorn and then ultrasonically dispersed to obtain an emulsion suspension. A3) The emulsion suspension was allowed to stand, then cooled, and then the pH was adjusted to 6-8. Glutamine transaminase was then added for solidification treatment to obtain microcapsules containing the characteristic aroma ingredients. in, Based on a wall material usage of 100 parts by weight, the usage amounts of each ultrafine powder are as follows: 40-60 parts by weight of ultrafine powder of Schisandra chinensis branches; Apple and pear ultrafine powder, 20-40 parts by weight; 10-30 parts by weight of Hawthorn ultrafine powder; B) Add the microcapsules containing the encapsulated specialty fragrance ingredients to the filter rod filament bundle to produce a multifunctional filter rod; The amount of the microcapsules containing the special fragrance raw material molecules used is 1% to 10% of the mass of the mouthpiece filament bundle.

2. The preparation method according to claim 1, characterized in that, The polymer material is a polyvinyl alcohol-polyethylene glycol copolymer.

3. The preparation method according to claim 1, characterized in that, All three types of ultrafine powders were obtained from the corresponding raw materials through pretreatment; The pretreatment process includes: sorting, impurity removal, slicing, freeze drying, and pulverizing.

4. The preparation method according to claim 1, characterized in that, In step A1), the mass ratio of the polymer material to water is 1:(1~3).

5. The preparation method according to claim 1, characterized in that, In step A2), during the ultrasonic dispersion, acid is added to the system to adjust the pH value.

6. The preparation method according to claim 1, characterized in that, In step A3), the cooling is to reduce the temperature to below 10°C.

7. A multifunctional filter rod prepared by any one of claims 1 to 6.

8. A cigarette, characterized in that, The filter rod is the multifunctional filter rod as described in claim 7.

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