Tar release amount adjustable leaf composition formula design method capable of preserving aroma and reducing tar

Abstract

The invention relates to an aroma-preserving tar-reducing tar-release-amount-adjustable leaf group formula design method which comprises the following steps: establishing a tobacco leaf grade sample library, and calculating low-tar evaluation indexes LT, LT, LT, LT, LT, LT, LT, LT, LT and LT of all tobacco leaf grades in the sample library, screening in combination with the low tar evaluation index LT of the tobacco leaf grade in the existing tobacco group formula and the product style characteristic of the target formula to obtain a to-be-selected tobacco leaf grade sample library; calculating a tar comprehensive evaluation index Y of the existing leaf formula, and determining a tar comprehensive evaluation index reference value of the target formula; according to the tar comprehensive evaluation index reference value, the tobacco leaf grade dosage in the to-be-selected tobacco leaf grade sample library is adjusted, a series of leaf group formulas are output, and after sensory evaluation, a target leaf group formula is obtained. According to the design method provided by the invention, the key core technology for designing the aroma conservation and tar reduction of the leaf group formula of the ultra-low tar cigarette product is improved, and the core competitiveness of maintaining the aroma conservation and tar stabilization of the formula of the cigarette product with different tar design values is enhanced.

Description

Technical Field

[0001] The invention relates to the technical field of tobacco, and in particular to a method for designing a leaf group formula with adjustable tar release for preserving aroma and reducing tar. Background Art

[0002] With the continuous deepening of research on smoking and health issues, the development of low-tar tobacco products has become an inevitable direction for the development of tobacco in the world. The reduction of tar and the loss of aroma make the design, development and maintenance of leaf group formulas of low-tar products more difficult. Therefore, it is of great significance to develop a leaf group formula design method that can reduce tar content while maintaining aroma and reducing tar, meet the tar design value and take into account satisfaction, and ensure high sensory quality for the sustainable development of low-tar cigarette products.

[0003] In the preliminary research of the present invention, the inventors conducted a correlation analysis on the sensory quality and style characteristics of flue-cured tobacco leaves. The study showed that permeability and impurities are the main influencing factors of the degree of style expression, permeability is the main influencing factor of concentration, permeability, aroma volume and aftertaste are the main influencing factors of strength, and verified that the style characteristics of tobacco leaves can be predicted by sensory quality indicators, which has certain reference significance for the construction of a tobacco leaf quality evaluation system.

[0004] CN102628855A discloses a method for predicting smoke components of flue-cured tobacco leaves. The method uses SPSS to perform correlation analysis on physical indicators of flue-cured tobacco leaves, and performs stepwise regression analysis on the physical indicators and smoke indicators to obtain regression equations of the physical indicators of flue-cured tobacco leaves and the smoke indicators, and uses the regression equations to predict the smoke indicators.

[0005] At present, there is no data proposing a leaf group formula design method that combines mathematical models to achieve a tar release reduction on the basis of flavor preservation. Therefore, it is necessary to develop a model that takes into account both the tar release and sensory quality of tobacco leaf samples and its use in formula design to meet its application in the development of low-tar cigarette products and the updating and maintenance of cigarette product leaf group formulas. Summary of the invention

[0006] In order to solve the above technical problems, the present invention provides a method for designing a leaf group formula with adjustable tar release for flavor preservation and tar reduction. The leaf group formula design method provided by the present invention can quickly and effectively screen out highly matched raw material grade groups for products with different tar design values, and output a series of leaf group formulas that meet the tar design values ​​according to the formula tar comprehensive evaluation index Y, which greatly reduces the workload of the formula personnel, further improves the key core technology of flavor preservation and tar reduction in the leaf group formula design of ultra-low tar cigarette products, and strengthens the core competitiveness of maintaining flavor preservation and tar stability in the formula of cigarette products with different tar design values.

[0007] To achieve this object, the present invention adopts the following technical solutions:

[0008] In a first aspect, the present invention provides a method for designing a leaf group formula with adjustable tar release for maintaining aroma and reducing tar, characterized in that the leaf group formula design method comprises the following steps:

[0009] (1) establishing a tobacco leaf grade sample library, calculating the low tar evaluation index LT of all tobacco leaf grades in the sample library, combining the low tar evaluation index LT of tobacco leaf grades in existing leaf group formulas and the product style characteristics of the target formula for screening, and obtaining a sample library of tobacco leaf grades to be selected;

[0010] The calculation formula of the low tar evaluation index LT is as follows:

[0011]

[0012] Among them, A represents the weight of tobacco, B represents the nicotine in the smoke, C represents the aroma quality, D represents the aroma volume, and J represents the tar release; Indicates the grade of tobacco leaves The average value of Indicates the grade of tobacco leaves The average value of Indicates the grade of tobacco leaves The average value of Indicates the grade of tobacco leaves The average value of

[0013] (2) Calculate the comprehensive evaluation index Y of the existing leaf group formula and determine the reference value of the comprehensive evaluation index of the target formula;

[0014] The calculation formula of the tar comprehensive evaluation index Y is as follows:

[0015]

[0016] Among them, i represents the tobacco grade, LT i Indicates the low tar evaluation index of the i-th tobacco grade, m i Indicates the quality of the i-th tobacco leaf grade in the leaf group formula, m 总 It indicates the total mass of tobacco leaf grades in the leaf group recipe;

[0017] (3) The dosage of tobacco leaves in the sample library of tobacco leaves to be selected is adjusted according to the reference value of the comprehensive evaluation index of tar, and a series of leaf group formulas are output. After sensory evaluation, a leaf group formula with adjustable tar release for maintaining aroma and reducing tar is obtained.

[0018] In the prior art, leaf group formula is usually formulated based on operating experience, and then tar testing is performed, and repeated adjustments are made based on the test results, which requires a lot of time and energy from the formulator. Based on this, the present invention provides a method for designing a tar-adjustable leaf group formula that preserves aroma and reduces tar.

[0019] The low tar evaluation index LT provided by the present invention comprehensively considers the sensory quality, satisfaction and tar release of tobacco leaves, and can screen out tobacco leaf samples that simultaneously meet the low tar release and take into account the tobacco aroma and satisfaction. At the same time, the leaf group formula tar comprehensive evaluation index Y is introduced, and the new formula is designed based on the existing formula. The resulting formula can meet the tar design value at the beginning of its formation, and at the same time, the sensory quality of the formula can be taken into account, thereby ensuring the quality stability of the new formula. The leaf group formula design method provided by the present invention can quickly and effectively screen out highly matched raw material grade groups for products with different tar design values, and output a series of leaf group formulas that meet the tar design values, greatly reducing the workload of formula personnel, further improving the key core technology of flavor preservation and tar reduction in the leaf group formula design of ultra-low tar cigarette products, and strengthening the core competitiveness of maintaining flavor preservation and tar stability in the formula of cigarette products with different tar design values.

[0020] Preferably, when the leaf group formula design method is used for the development of low tar product formula, the screening in step (1) includes: selecting a tobacco grade that is not lower than the minimum tobacco grade LT in the existing leaf group formula and is consistent with the product style characteristics of the target formula.

[0021] Preferably, the number of tobacco leaf grades in the sample library of tobacco leaf grades to be selected is 10-30 (for example, it may be 10, 15, 20, 25, 30, etc.).

[0022] Preferably, the reference value of the comprehensive evaluation index of tar in step (2) is higher than the comprehensive evaluation index Y of tar in the existing leaf group formula.

[0023] Preferably, the number of existing leaf group formulas described in step (1) and step (2) is 1-8 (for example, it can be 1, 2, 3, 4, 5, 6, 7, 8).

[0024] In the present invention, the leaf group formula design method can be used for the development of low-tar product formulas, and the resulting formula product is a leaf group formula with high fragrance and low tar.

[0025] Preferably, when the leaf group formula design method is used for maintaining an existing product formula, the screening in step (1) includes: selecting a tobacco grade whose absolute value of the difference in low tar evaluation index LT with the tobacco grade in the existing leaf group formula is less than 0.3 (for example, it may be 0.01, 0.05, 0.1, 0.2, 0.25, etc.) and which is consistent with the product style characteristics of the existing formula, to obtain a sample library of tobacco grades to be selected.

[0026] Preferably, the number of tobacco leaf grades in the sample library of tobacco leaf grades to be selected is 10-30 (for example, it may be 10, 15, 20, 25, 30, etc.).

[0027] Preferably, the reference value of the comprehensive evaluation index of tar in step (2) is an interval value of the comprehensive evaluation index Y of tar of the existing leaf group formula.

[0028] Preferably, the number of existing leaf group formulas described in step (1) and step (2) is 2-8 (for example, it can be 2, 3, 4, 5, 6, 7, 8).

[0029] In the present invention, the leaf group formula design method can be used to maintain the existing product formula. In this case, the obtained formula product is a maintenance leaf group formula that meets the tar design value and takes into account the tobacco aroma and satisfaction.

[0030] Preferably, the evaluation indicators of the sensory evaluation in step (3) include style expression, strength, concentration, aroma quality, aroma quantity, penetration, harmony, sweetness, miscellaneous smell, irritation and aftertaste.

[0031] Preferably, the sensory evaluation also includes eliminating unqualified formulas to obtain a leaf group formula with adjustable tar release for aroma preservation and tar reduction.

[0032] Preferably, the sensory evaluation score of the unqualified formula is <85.

[0033] Compared with the prior art, the present invention has at least the following beneficial effects:

[0034] The leaf group formula design method provided by the present invention introduces a low tar evaluation index LT and a formula tar comprehensive evaluation index Y, and comprehensively considers the sensory quality and tar release of tobacco leaves. The resulting formula can meet the tar design value at the beginning of its formation, while also taking into account the sensory quality and satisfaction of the formula, thereby ensuring the quality stability of the new formula, greatly reducing the workload of the formula personnel, and further improving the key core technology of leaf group formula design for ultra-low tar cigarette products to preserve flavor and reduce tar, and strengthening the core competitiveness of cigarette product formulas with different tar design values ​​in maintaining flavor and stabilizing tar. DETAILED DESCRIPTION

[0035] For the convenience of understanding the present invention, the present invention lists the following embodiments. It should be understood by those skilled in the art that the embodiments are only to help understand the present invention and should not be regarded as specific limitations of the present invention.

[0036] Example 1

[0037] This embodiment provides a method for designing a tar-adjustable leaf group formula for maintaining aroma and reducing tar. The leaf group formula design method takes the design of a leaf group formula for developing a low-tar product (less than 3 mg / cig) as an example, and specifically includes the following steps:

[0038] (1) Establish a tobacco leaf grade sample library, calculate the low tar evaluation index LT of all tobacco leaf grades in the sample library, determine the existing leaf group formula 1-2 as the reference formula (5 mg / cig product formula, 3 mg / cig product formula), select 30 tobacco leaf grades that are not lower than the minimum value of the tobacco leaf grade LT (3.56) in the existing leaf group formula in the tobacco leaf grade sample library, and obtain the tobacco leaf grade sample library 1 to be selected (Table 2);

[0039] Among them, the calculation formula of low tar evaluation index LT is as follows:

[0040]

[0041] Among them, A represents the weight of tobacco, B represents the nicotine in the smoke, C represents the aroma quality, D represents the aroma volume, and J represents the tar release; Indicates the grade of tobacco leaves The average value of Indicates the grade of tobacco leaves The average value of Indicates the grade of tobacco leaves The average value of Indicates the grade of tobacco leaves The average value of

[0042] Calculate the comprehensive evaluation index Y of the existing leaf group formula, and determine the reference value of the comprehensive evaluation index of the target formula to be Y>4.39;

[0043] Among them, the calculation formula of the comprehensive evaluation index Y of the formula tar is as follows:

[0044]

[0045] Among them, i represents the tobacco grade, LT i Indicates the low tar evaluation index of the i-th tobacco grade, m i Indicates the quality of the i-th tobacco leaf grade in the leaf group formula, m 总 It indicates the total mass of tobacco leaf grades in the leaf group recipe;

[0046] The information statistics of the existing leaf group formula 1-2 are shown in Table 1.

[0047] Table 1

[0048]

[0049]

[0050] The sample information statistics in the sample library 1 of the tobacco leaf grade to be selected are shown in Table 2.

[0051] Table 2

[0052]

[0053]

[0054]

[0055] (2) According to the product design style and the inventory guarantee period of each grade of tobacco leaves, the tobacco grade of each module of the leaf group formula (style highlighting module, quality preservation and flavor enhancement module, and smoke blending module) is determined, and the sample library 2 of tobacco grade to be selected, that is, the formula leaf group grade (Table 3), and the amount of each tobacco grade in the formula leaf group is determined according to the reference value of the target formula comprehensive index, so that the tar comprehensive index Y of the obtained formula is greater than 4.39, and the formulas 1-9 with different tobacco leaf components and amounts are output, and the sensory evaluation and tar content test are respectively carried out, and the formulas with sensory evaluation scores <85 are eliminated to obtain the low-tar leaf group formula that meets the standard;

[0056] Table 3

[0057]

[0058]

[0059] The sensory evaluation method is shown in Table 4. The full score is 99, and the total sensory evaluation score of product design style of unqualified samples is <85.

[0060] Table 4

[0061]

[0062] The tobacco grade composition of formulations 1-9 is summarized in Table 5.

[0063] Table 5

[0064]

[0065]

[0066] The test results of formulas 1-9 are summarized in Table 6.

[0067] Table 6

[0068] formula Tar (mg / cig) Total sensory evaluation score 1 1.87 82 2 2 89 3 2.03 92 4 1.89 83 5 1.91 85 6 2.88 92 7 2.92 92 8 2.01 86 9 1.86 83

[0069] It can be seen from the results in Table 6 that the leaf group formula design method provided by the present invention can design a new formula based on the tar comprehensive index of the existing formula. The obtained formula can meet the tar design value at the beginning of its formation, while also taking into account the sensory quality of the formula. It can quickly and effectively screen out highly matched raw material grade groups for products with different tar design values, and output a series of leaf group formulas that meet the tar design values, which greatly reduces the workload of formulators, further improves the key core technology of leaf group formula design for ultra-low tar cigarette products to preserve flavor and reduce tar, and strengthens the core competitiveness of cigarette product formulas with different tar design values ​​in maintaining flavor and stabilizing tar.

[0070] The applicant declares that the above is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention shall fall within the protection scope and disclosure scope of the present invention.

Claims

1. A method for designing a leaf group formula with adjustable tar release for maintaining aroma and reducing tar, characterized in that: The leaf group formula design method comprises the following steps: (1) establishing a tobacco leaf grade sample library, calculating the low tar evaluation index LT of all tobacco leaf grades in the sample library, combining the low tar evaluation index LT of tobacco leaf grades in existing leaf group formulas and the product style characteristics of the target formula for screening, and obtaining a sample library of tobacco leaf grades to be selected; The calculation formula of the low tar evaluation index LT is as follows: Among them, A represents the weight of tobacco, B represents the nicotine in the smoke, C represents the aroma quality, D represents the aroma volume, and J represents the tar release; Indicates the grade of tobacco leaves The average value of Indicates the grade of tobacco leaves The average value of Indicates the grade of tobacco leaves The average value of Indicates the grade of tobacco leaves The average value of (2) Calculate the comprehensive evaluation index Y of the existing leaf group formula and determine the reference value of the comprehensive evaluation index of the target formula; The calculation formula of the tar comprehensive evaluation index Y is as follows: Among them, i represents the tobacco grade, LT i Indicates the low tar evaluation index of the i-th tobacco grade, m i Indicates the quality of the i-th tobacco leaf grade in the leaf group formula, m 总 It indicates the total mass of tobacco leaf grades in the leaf group recipe; (3) The dosage of tobacco leaves in the sample library of tobacco leaves to be selected is adjusted according to the reference value of the comprehensive evaluation index of tar, and a series of leaf group formulas are output. After sensory evaluation, a leaf group formula with adjustable tar release for maintaining aroma and reducing tar is obtained.

2. The leaf group formula design method according to claim 1, characterized in that: When the leaf group formula design method is used for the development of low-tar product formula, the screening in step (1) includes: selecting a tobacco grade that is not lower than the minimum LT value of the tobacco grade in the existing leaf group formula and is consistent with the product style characteristics of the target formula; Preferably, the number of tobacco leaf grades in the sample library of tobacco leaf grades to be selected is 10-30.

3. The leaf group formula design method according to claim 2, characterized in that: The reference value of the comprehensive evaluation index of tar in step (2) is higher than the comprehensive evaluation index Y of tar in the existing leaf group formula.

4. The leaf group formula design method according to claim 2 or 3, characterized in that: The number of existing leaf group formulas described in step (1) and step (2) is 1-8.

5. The leaf group formula design method according to claim 1, characterized in that: When the leaf group formula design method is used for maintaining an existing product formula, the screening in step (1) includes: selecting a tobacco grade whose absolute value of the difference in low tar evaluation index LT with the tobacco grade in the existing leaf group formula is less than 0.3 and whose product style characteristics are consistent with the existing formula, to obtain a sample library of tobacco grade to be selected; Preferably, the number of tobacco leaf grades in the sample library of tobacco leaf grades to be selected is 10-30.

6. The leaf group formula design method according to claim 5, characterized in that: The reference value of the comprehensive evaluation index of tar in step (2) is the interval value of the comprehensive evaluation index Y of tar of the existing leaf group formula.

7. The leaf group formula design method according to claim 5 or 6, characterized in that: The number of existing leaf group formulas described in step (1) and step (2) is 2-8.

8. The leaf group formula design method according to any one of claims 1 to 7, characterized in that: The evaluation indexes of the sensory evaluation in step (3) include the degree of style expression, strength, concentration, aroma quality, aroma quantity, penetration, harmony, sweetness, miscellaneous smell, irritation and aftertaste.

9. The leaf group formula design method according to any one of claims 1 to 8, characterized in that: The sensory evaluation also includes eliminating unqualified formulas to obtain a leaf group formula with adjustable tar release for maintaining aroma and reducing tar.

10. The leaf group formula design method according to claim 9, characterized in that: The sensory evaluation score of the unqualified formula is <85.

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