Preparation method and application of cigar-flavor particles

Abstract

The invention discloses a preparation method and application of cigar-flavor particles. The preparation method comprises the following steps: carrying out LX-8 type macroporous resin column chromatography on a cigar tobacco leaf ethanol extract, and eluting and purifying with 90% ethanol to obtain a characteristic aroma core material; and mixing the core material with maltodextrin and sucrose fatty acid ester according to the mass ratio of the wall material to the core material being (2: 1)-(4: 1) and the addition amount of an emulsifier being 8.0-20.0%, homogenizing and spray-drying to prepare the flavor granules. Through cooperation of specific purification and embedding processes, the purity and coordination of the aroma core material are effectively improved, efficient embedding of the core material is achieved, and the embedding rate is not lower than 77%. When the particles are applied to the reconstituted tobacco, the smoking comfort can be remarkably improved, the dry feeling is reduced, the stability of aroma release is enhanced, and effective technical support is provided for development of high-quality reconstituted tobacco products.

Description

Technical Field

[0001] This invention belongs to the field of tobacco processing technology, specifically relating to a method for preparing cigar flavor particles and its application. Background Technology

[0002] Reconstituted tobacco is an important industrial raw material produced through specialized reconstituted tobacco technology. This technology uses byproducts from tobacco cultivation and primary processing, such as tobacco dust, stems, and fragments, as its main raw materials. It involves a series of standardized processes including fiber separation, recombination, pulp preparation, paper forming, and drying. This production process achieves high-value utilization of tobacco resources, transforming materials with low utilization rates into homogenized and standardized high-grade raw materials. Applying reconstituted tobacco in cigarette formulations can significantly improve the comprehensive utilization rate of raw materials, reduce production costs and resource consumption. Simultaneously, its physicochemical properties are highly designable, allowing for flexible adjustment of key indicators such as filler content, combustion rate, and tar release through process design. This makes it an important functional carrier for reducing tar and harmful substances in cigarette products, and effectively homogenizes and stabilizes the intrinsic quality of cigarette products.

[0003] However, while the reconstituted tobacco production process offers numerous advantages, it also inherently limits its final sensory quality. Because the raw materials undergo fibrosis, separation, and recombination, reconstituted tobacco loses the unique aroma layers and richness of natural tobacco leaves. When burned, it often exhibits a noticeable dryness and woody notes, resulting in insufficient smoke smoothness and poor smoking comfort. To specifically address this deficiency, adding cigar flavorings with rich and full-bodied aromas to reconstituted tobacco has become an important technological direction for enhancing product quality. However, the products obtained from existing cigar flavoring preparation processes often fail to achieve satisfactory enhancements when applied to reconstituted tobacco. Their aroma expression is usually quite mixed; while providing characteristic aromas, they may also be accompanied by undesirable off-flavors, making it difficult to integrate them purely and harmoniously into the reconstituted tobacco system, thus limiting their potential for improving sensory quality.

[0004] More importantly, even disregarding the inherent compatibility of the flavoring raw materials, the porous structure of reconstituted tobacco and the necessary high-temperature drying process make it easy for the added volatile aroma components to dissipate and deteriorate during processing and subsequent stages. This results in an unstable and unsustainable flavoring effect and poor aroma consistency throughout the smoking process. While conventional microencapsulation technology is a theoretical option, it is often poorly suited to the complex aroma systems of cigars and the specific application environment of reconstituted tobacco. The inadequacy of flavoring raw materials in terms of quality compatibility, combined with the limitations of the carrier in terms of aroma retention, constitutes a key bottleneck in the development of high-quality, high-value reconstituted tobacco products.

[0005] This has led to a long-standing dual problem in the application of cigar flavorings in reconstituted tobacco: impure aroma quality and unstable preservation, directly hindering the effective application of this technology in the development of high-end products.

[0006] To address the above problems, this invention is proposed. Summary of the Invention

[0007] To address the dual technical problems of impure aroma quality and poor harmony when cigar flavorings are applied to reconstituted tobacco in existing technologies, as well as easy volatilization and loss during processing and difficulty in long-term stable retention, this invention provides a cigar flavoring particle, its preparation method, and its application. Through a combination of purification and encapsulation technologies, it significantly enhances the purity of aroma quality while significantly improving its retention stability and release harmony in the reconstituted tobacco system, thereby comprehensively improving the sensory quality of reconstituted tobacco.

[0008] The present invention solves the technical problem by adopting the following technical solution:

[0009] The first aspect of this invention provides a method for preparing cigar flavor particles, comprising the following steps:

[0010] Step (1): Extract and concentrate the cigar tobacco leaves with ethanol solution to obtain an extract. Then, perform chromatography on the extract using an LX-8 macroporous resin column and collect the 90% volume concentration ethanol eluent fraction. After concentration, obtain the core material with characteristic aroma of cigar tobacco.

[0011] Step (2): Mix the core material obtained in step (1) with the wall material maltodextrin and the emulsifier sucrose fatty acid ester, add water to make an emulsion, homogenize it and spray dry it to obtain cigar flavor particles.

[0012] The mass ratio of the wall material to the core material is 2:1-4:1, the amount of emulsifier added is 8.0%-20.0% of the total mass of the wall material and the core material, and the homogenization rate is 600-1000 r / min.

[0013] Preferably, in step (2), the mass ratio of the wall material to the core material is 3:1, the amount of emulsifier added is 15%-18%, and the homogenization rate is 800 r / min.

[0014] Preferably, step (1) includes: extracting cigar tobacco leaves using an ethanol solution with a volume concentration of 90%-95% at 50℃-60℃; and concentrating the obtained extract under reduced pressure at 50℃-60℃ to obtain an extract.

[0015] Preferably, in step (1), the chromatography flow rate of the extract is controlled at 0.2-1.5 BV / h when passing through the LX-8 macroporous resin column.

[0016] Preferably, in step (2), the inlet air temperature of the spray dryer is 160℃-200℃.

[0017] Preferably, the cigar flavor particles obtained by the method have a high encapsulation rate of the characteristic aroma core material of the cigar, and the encapsulation rate is preferably not less than 77%.

[0018] Preferably, in step (1), impurities are first removed by washing with water and ethanol solutions with volume concentrations of 30% and 60% in sequence, and then the 90% volume concentration ethanol eluent fraction is collected.

[0019] A second aspect of the present invention provides cigar-flavored particles prepared by any of the methods described in the first aspect.

[0020] The third aspect of the present invention provides the application of the cigar flavor particles described in the second aspect in reconstituted tobacco leaves to improve the smoking comfort of reconstituted tobacco leaves, reduce dryness, and / or enhance the stability of aroma release.

[0021] A fourth aspect of the present invention provides a reconstituted tobacco leaf comprising the cigar flavor particles described in the second aspect.

[0022] The present invention has the following beneficial effects:

[0023] 1. This invention constructs a synergistic extraction-purification integrated solution. First, solvent extraction fully extracts the aroma and soluble substances from cigar tobacco leaves. The key lies in the subsequent targeted purification process adapted to the characteristics of the extract: using a specific type of macroporous adsorption resin and a specific gradient elution procedure. This procedure effectively separates substances based on differences in polarity and adsorption force: first, low-concentration ethanol is used to elute most water-soluble impurities and interfering components that produce woody or grassy aromas; then, a specific high-concentration ethanol is used to selectively desorb and enrich the alcohol and saturated target aroma components. This purification process is a systematic and optimized design for the complex aroma system of cigars. Therefore, it effectively overcomes the defects of chaotic aroma and obvious off-odors when crude extracts are used directly, obtaining high-quality filler raw materials with clear aroma profiles, distinct characteristics, and improved harmony, providing a reliable foundation for subsequent stable flavoring.

[0024] 2. Based on obtaining high-quality core materials, this invention screens suitable combinations of wall materials and emulsifiers, and synergistically optimizes key process parameters such as the wall-to-core mass ratio, emulsifier addition amount, and homogenization rate. Experiments have confirmed that this parameter combination can form microcapsule particles with excellent encapsulation effects. Verification using the established encapsulation rate determination method shows that this optimized process achieves a high encapsulation rate for the characteristic aroma core materials of cigars, indicating that it can effectively encapsulate most of the core material within the particles. This provides an innovative and reliable technical approach to effectively address the common industry problem of volatile aroma components being easily lost during subsequent processing and storage, especially in porous matrices such as reconstituted tobacco that require high-temperature treatment, to achieve stable retention and controllable release of aroma components.

[0025] 3. Applying the cigar-flavored particles prepared by this invention to reconstituted tobacco leaves, sensory evaluation showed that it effectively improved the smoking comfort of reconstituted tobacco leaves, significantly reduced their inherent dryness and woody aroma, and made the release of cigar characteristic aromas more stable and full-bodied. This verifies that the complete process design of this technical solution, from core material purification to particle encapsulation, not only solves the individual problems of raw material coordination and processing stability, but also produces a synergistic overall technical effect in the final application, providing effective technical support for the development of high-quality reconstituted tobacco leaf products.

[0026] 4. The extraction and purification process described above can reliably obtain high-quality core material, providing a qualified raw material basis for subsequent encapsulation. The optimized encapsulation process parameters are specifically designed for the physicochemical properties of this core material, ensuring effective connection and matching between processes. The entire process uses readily available raw materials, operates under mild conditions, and is controllable, overcoming common problems such as low efficiency and poor adaptability in the purification and immobilization of complex aroma systems. This provides a clear and repeatable process path for the standardized and large-scale production of cigar flavor-reconstituted tobacco leaves. Detailed Implementation

[0027] The present invention will be further described below through embodiments, but is not limited to these embodiments. Experimental methods not specifically described in the embodiments generally use conventional conditions and conditions described in manuals, or conditions recommended by the manufacturer. The general equipment, materials, reagents, etc., used are all commercially available unless otherwise specified.

[0028] Example 1

[0029] This embodiment provides a method for preparing cigar flavor filler material, including the following steps:

[0030] Step (1): Weigh 1000g of cigar tobacco leaves and extract them twice with 10 times their weight of 95% ethanol at 55℃ for 24 hours each time, so that the characteristic aroma components in the tobacco leaf tissue can be fully dissolved; combine the extracts and concentrate them under reduced pressure at 55℃ to obtain the extract.

[0031] Step (2): Load the extract obtained in step (1) onto an LX-8 macroporous resin column. Elute with water, 30% ethanol, 60% ethanol and 90% ethanol for 3 column volumes each at a flow rate of 1.0 BV / h. Collect the 90% ethanol eluent fraction, concentrate under reduced pressure, and obtain the core material A of this invention.

[0032] Comparative Example 1

[0033] Using the same extract and the same LX-8 resin column, the procedure was the same as described in this invention, but the 30% ethanol eluent fraction and the 60% ethanol eluent fraction were collected and concentrated to obtain control core material B and control core material C.

[0034] Comparative Example 2

[0035] The procedure is the same as the method of the present invention, but the macroporous resin is replaced with the AB-8 type resin commonly used in the art, and its 90% ethanol elution fraction is collected to obtain the comparative core material D.

[0036] Test Example 1

[0037] To directly evaluate the differences in sensory quality of core materials obtained from different purification processes, excluding the impact of subsequent processing losses, the four core materials (A, B, C, and D) were uniformly coated onto the surface of the same batch of prepared neutral blank reconstituted tobacco sheets at the same addition amount (0.5%, based on the dry weight of reconstituted tobacco). After balancing the moisture content under standard conditions, test cigarettes of uniform specifications were produced. An evaluation panel composed of professional tobacco tasters conducted single-blind tastings according to the national standard (GB / T19609).

[0038] The evaluation results are shown in Table 1 below: Table 1 Sensory evaluation results of core materials obtained by different purification processes

[0039]

[0040] The comparative results of this embodiment show that the fill material A prepared using the specific process of elution with LX-8 macroporous resin and 90% ethanol has significantly better sensory evaluation results (prominent sweet aroma, good smoothness, and low impurities) than the other control groups (B, C, and D). This proves that this specific process combination can selectively enrich the characteristic aroma components of cigars and effectively remove impurities, thereby obtaining a fill material with a purer and more harmonious aroma composition at the raw material level. This result directly addresses and solves the technical problems of impure aroma and poor harmony.

[0041] Example 2

[0042] This embodiment provides a method for preparing cigar flavor particles according to the present invention, the specific steps of which are as follows:

[0043] Step (1): Take 3.0g of the characteristic aroma filler material of cigars prepared in Example 1. Add 9.0g of maltodextrin at a wall material to filler material mass ratio of 3:1. Based on the total mass of wall material and filler material (12.0g), add 1.92g of sucrose fatty acid ester emulsifier at a ratio of 16%. Add deionized water to prepare an emulsion with a solid content of 20%. Homogenize the emulsion at a rate of 800 r / min, and then spray dry it at an inlet air temperature of 180℃ to obtain the cigar flavor particles of the present invention, denoted as P1.

[0044] Comparative Example 3

[0045] This comparative example is used to examine the effect of the wall-to-core ratio deviating from the preferred value of the present invention. Except for changing the mass ratio of wall material to core material to 5:1, the other steps and parameters are exactly the same as step (1) of Example 2. That is, 3.0g of the core material prepared in Example 1 is taken, 15.0g of maltodextrin is added, emulsifier is added in the same proportion and the mixture is prepared into an emulsion with a solid content of 20%. After homogenization and spray drying under the same conditions, comparative particles are obtained and denoted as P2.

[0046] Comparative Example 4

[0047] This comparative example is used to examine the effect of the emulsifier addition amount deviating from the preferred value of the present invention. Except that the emulsifier addition amount is changed to 8% of the total mass of the wall material and the core material, the other steps and parameters are exactly the same as step (1) of Example 2. That is, after adding the materials at a wall-to-core ratio of 3:1, 0.96g of emulsifier is added to prepare an emulsion with a solid content of 20%, which is homogenized and spray-dried under the same conditions to obtain comparative particles, denoted as P3.

[0048] Comparative Example 5

[0049] This comparative example is used to examine the effect of the homogenization rate deviating from the preferred value of the present invention. Except for changing the homogenization rate to 400 r / min, the other steps and parameters are exactly the same as step (1) of Example 2. Comparative particles were obtained and denoted as P4.

[0050] Comparative Example 6

[0051] This comparative example uses conventional empirical parameters for microcapsule preparation in the art. The specific steps are the same as in Example 2, but the core parameters are changed: wall material to core material mass ratio 4:1, emulsifier addition 10%, homogenization rate 600 r / min, with other conditions remaining unchanged. The resulting control particles are denoted as P5.

[0052] Test Example 2

[0053] This test example provides a method for determining the embedding rate, and tests and compares the particle samples (P1-P5) prepared in Example 2 to verify the superiority of the process parameters of the present invention.

[0054] 1. Establishment of the standard curve

[0055] Accurately weigh 1.000 g of the characteristic aroma filler material of cigars prepared in Example 1, dissolve it in anhydrous ethanol and dilute to 1000 mL to prepare a standard stock solution with a concentration of 1.0 mg / mL. The stock solution was serially diluted with anhydrous ethanol to obtain a series of standard solutions with concentrations of 0.01, 0.05, 0.1, 0.2, 0.5, and 1.0 mg / mL. Using anhydrous ethanol as a reference, the absorbance of each solution was measured at 285 nm using a UV-Vis spectrophotometer. A standard curve was plotted with concentration (C, mg / mL) on the x-axis and absorbance (A) on the y-axis, yielding the following linear regression equation: Correlation coefficient This curve is used to calculate the core material content in all subsequent samples.

[0056] 2. Determination of total core material content in the sample

[0057] Accurately weigh 0.1000 g (accurate to 0.0001 g) of the cigar flavor granule sample prepared in Example 2 and place it in a 50 mL volumetric flask. Dilute to the mark with anhydrous ethanol. Place the volumetric flask in an ultrasonic homogenizer and sonicate at 90 W for 30 minutes to ensure complete destruction of the granule wall material and release all the embedded core material into the ethanol. Transfer the solution to a centrifuge tube and centrifuge at 4°C and 10,000 rpm for 30 minutes. Use the supernatant as the test solution. Measure the absorbance at 285 nm wavelength, performing three parallel measurements and taking the average value. Substitute the average absorbance value into the linear regression equation of the standard curve to calculate the total core material content in the sample, denoted as Ctotal.

[0058] 3. Determination of core material content on sample surface

[0059] Accurately weigh 0.1000 g (accurate to 0.0001 g) of the same sample and place it in a 50 mL stoppered conical flask. Add 20 mL of anhydrous ethanol and extract on a shaker at 150 r / min for 10 minutes at room temperature. This condition is specifically designed for the selective extraction of free surface core material, ensuring the integrity of the particle embedding structure. Immediately filter the extract through a microporous membrane (e.g., 0.45 μm) and use the clear filtrate as the test solution. Measure the absorbance of the filtrate at a wavelength of 285 nm, performing three parallel measurements and taking the average value. Substitute the average absorbance value into the standard curve equation to calculate the content of surface core material in the sample, denoted as Ctable.

[0060] 4. Calculation of embedding rate

[0061] The encapsulation efficiency of the particles is calculated using the following formula:

[0062]

[0063] 5. Measurement Results and Comparison

[0064] The particles P1 to P5 prepared in Example 2 were measured using the above method, and the results are shown in Table 2.

[0065] Table 2 Comparison of Encapsulation Rate of Cigar Flavor Particles Prepared with Different Process Parameters

[0066]

[0067] The test results show that: (1) Particle P1, prepared using the specific process parameters of this invention (wall-to-core ratio 3:1, emulsifier addition 16%, homogenization rate 800 r / min), has the highest encapsulation rate, reaching 77.5%. (2) Changing any one of the parameters, such as the wall-to-core ratio (P2), emulsifier addition (P3), or homogenization rate (P4), leads to a significant decrease in the encapsulation rate. This proves that the three parameters, wall-to-core ratio, emulsifier addition, and homogenization rate, are interrelated and synergistic in the scheme of this invention, jointly determining the final encapsulation effect. (3) Particle P5, prepared using a wall-to-core ratio of 4:1, emulsifier 10%, and homogenization rate of 600 r / min, has an encapsulation rate (65.5%) that is higher than that of the comparative sample with a serious deviation of a single parameter, but is still significantly lower than that of particle P1 of this invention.

[0068] In summary, the specific combination of parameters—a wall-to-core ratio of 3:1, an emulsifier addition of 16%, and a homogenization rate of 800 r / min—is key to achieving a high encapsulation rate (not less than 77%), and its technical effect far exceeds what a person skilled in the art could predict through conventional selection or simple superposition. This measurement method and data provide direct and objective experimental support for the technical effect described in the claims.

[0069] Test Example 3

[0070] This test case aims to verify the overall sensory improvement effect of cigar flavor particles prepared by the complete process of the present invention (specific purification in Example 1 and specific encapsulation in Example 2) when applied to reconstituted tobacco under simulated real production environment conditions, and to compare with a comparative example to demonstrate the synergistic necessity of the purification and encapsulation processes.

[0071] 1. Preparation of test samples:

[0072] Take the cigar flavor particles P1 prepared in Example 2 of the present invention, and the particles P5 prepared in Comparative Example 6. Their core materials are the same as those of P1 (both are core material A of Example 1), but the encapsulation process parameters are conventional empirical values. Take the characteristic aroma core material A of cigar prepared in Example 1, and the same batch of neutral blank reconstituted tobacco leaves.

[0073] Samples P1, P5, and core material A were added to the same blank reconstituted tobacco pulp at amounts calculated to represent the same effective core material content (to ensure consistent net addition of core material A in the final reconstituted tobacco leaves). All pulps were then processed into reconstituted tobacco sheets using the same sheet-making and forming process. These sheets were then placed in a high-temperature drying oven simulating actual production line conditions and treated at 160°C for 10 minutes to simulate key stages in reconstituted tobacco processing that could lead to aroma loss. The treated sheets were then equilibrated under standard conditions to produce test cigarettes of uniform specifications.

[0074] 2. Sensory evaluation methods:

[0075] An evaluation panel composed of the same group of professional tobacco tasters as in Test Example 1 conducted a single-blind cigar evaluation in accordance with the national standard (GB / T19609). The evaluation focused on: the intensity, fullness, persistence and stability of the characteristic aroma of the cigar, the degree of improvement in the dryness and irritation of the smoke, and the overall smoking comfort and harmony.

[0076] 3. Evaluation Results:

[0077] The evaluation results are summarized in Table 3 below:

[0078] Table 3. Sensory evaluation results of different samples applied to reconstituted tobacco and subjected to simulated processing.

[0079]

[0080] The results of this test case clearly demonstrate that:

[0081] (1) Sensory evaluation results showed that the characteristic aroma intensity of the unencapsulated pure core material (sample A) was significantly weakened after undergoing simulated high-temperature processing, and its effect on improving the dryness and woody aroma of reconstituted tobacco was limited. This result confirms that aroma components are easily lost under the above processing conditions, and also indicates that it is difficult to achieve stable retention and effective function of aroma components in the final product by relying solely on core material purification without combining it with an effective encapsulation protection process.

[0082] (2) Particles (sample P5) prepared using the same purified core material but with conventional encapsulation parameters, exhibited better aroma performance than those without encapsulated core material after undergoing the same processing. However, they also suffered from insufficient aroma persistence, significant aroma decay in the later stages, and generally poor harmony. This indicates that even with a high-quality core material, without appropriate encapsulation process parameters, it is still impossible to fully realize its long-term stability and sensory advantages under complex processing environments.

[0083] (3) Using the complete process of this invention, namely, obtaining core material A through specific purification and then preparing particles (sample P1) with optimized embedding parameters, the particles exhibited the best overall sensory effect after simulated processing. Its aroma release was stable, long-lasting, and full-bodied, with a significant improvement effect on dryness and woody notes, and high overall harmony and comfort. This result verifies that the organic combination of the specific purification process and the specific embedding process is key to achieving efficient retention and stable release of aroma components in reconstituted tobacco leaves, ultimately significantly improving the sensory quality of the product.

[0084] Example 3

[0085] This embodiment examines the effect of different combinations of process parameters on the encapsulation rate to verify the feasibility of this range.

[0086] Cigar flavor particles were prepared according to the three sets of process parameters listed in Table 4 below, following the steps of Example 2, and were designated as samples P6, P7, and P8, respectively. The characteristic cigar flavoring core material used was the same as core material A prepared in Example 1, the wall material was maltodextrin, and the emulsifier was sucrose fatty acid ester. The spray drying inlet air temperature was 180℃ for all samples.

[0087] Table 4. Processing conditions and encapsulation rates of particles prepared with different parameter combinations.

[0088]

[0089] In Example 3, cigar flavor particle samples P6, P7, and P8 were prepared according to the three sets of different process parameters listed in Table 3. Their encapsulation rates were determined using the method described in Test Example 2, and the results were 78.1%, 77.6%, and 77.9%, respectively. This result indicates that within the range of process parameters described in this invention, efficient encapsulation of characteristic aroma core materials can be achieved with an encapsulation rate of not less than 77%, verifying that the method of this invention has stable technical effects and good reproducibility.

[0090] The present invention has been described above by way of example. It should be noted that any simple modifications, alterations or other equivalent substitutions that can be made by those skilled in the art without creative effort without departing from the core of the present invention fall within the protection scope of the present invention.

Claims

1. A method for preparing cigar-flavored granules, characterized in that, Includes the following steps: Step (1): Extract and concentrate the cigar tobacco leaves with ethanol solution to obtain an extract. Then, perform chromatography on the extract using an LX-8 macroporous resin column and collect the 90% volume concentration ethanol eluent fraction. After concentration, obtain the core material with characteristic aroma of cigar tobacco. Step (2): Mix the core material obtained in step (1) with the wall material maltodextrin and the emulsifier sucrose fatty acid ester, add water to make an emulsion, homogenize it and spray dry it to obtain cigar flavor particles. The mass ratio of the wall material to the core material is 2:1-4:1, the amount of emulsifier added is 8.0%-20.0% of the total mass of the wall material and the core material, and the homogenization rate is 600-1000 r / min.

2. The method according to claim 1, characterized in that, In step (2), the mass ratio of wall material to core material is 3:1, the amount of emulsifier added is 15%-18%, and the homogenization rate is 800 r / min.

3. The method according to claim 1 or 2, characterized in that, Step (1) includes: using an ethanol solution with a volume concentration of 90%-95% to extract cigar tobacco leaves at 50℃-60℃; and concentrating the obtained extract under reduced pressure at 50℃-60℃ to obtain a paste.

4. The method according to any one of claims 1 to 3, characterized in that, In step (1), the chromatography flow rate of the extract is controlled at 0.2-1.5 BV / h when passing through the LX-8 macroporous resin column.

5. The method according to any one of claims 1 to 4, characterized in that, In step (2), the inlet air temperature of the spray dryer is 160℃-200℃.

6. The method according to any one of claims 1 to 5, characterized in that, The cigar flavor particles obtained by the method have a high encapsulation rate of the characteristic aroma core material of the cigar, preferably the encapsulation rate is not less than 77%.

7. The method according to any one of claims 1 to 6, characterized in that, In step (1), impurities are first removed by washing with water and ethanol solutions with volume concentrations of 30% and 60% in sequence, and then the 90% volume concentration ethanol eluent fraction is collected.

8. A cigar-flavored particle, prepared by the method according to any one of claims 1 to 7.

9. The application of the cigar flavor particles of claim 8 in reconstituted tobacco leaves to improve the smoking comfort of reconstituted tobacco leaves, reduce dryness, and / or enhance the stability of aroma release.

10. A reconstituted tobacco leaf, characterized in that, It contains the cigar flavor particles as described in claim 8.

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