A method for regulating the stability of the sensory quality of a raised module formula finished sheet tobacco

Abstract

The application provides a method for regulating and controlling the stability of the sensory quality of a raised module formula finished sheet tobacco, comprising the following steps: after the arrival of tobacco leaves, a plurality of rating experts make reference samples to grade the tobacco leaves again according to the reference samples; the rating experts perform sensory quality smoking test on the secondary grading samples to screen the secondary grading reference samples of the tobacco leaves meeting the cigarette products or give feedback; a colorimeter is used to detect the color of a set number of the secondary grading reference samples to obtain evaluation index data of the tobacco leaves; cluster analysis is performed on the color evaluation index data to determine the quantitative standard range of the evaluation index of the secondary grading samples; and the tobacco leaves are graded again according to the secondary grading reference samples and the quantitative standard range. The application can reduce the sensory quality fluctuation within or between batches to ensure the quality homogeneity of the cigarette products.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tobacco processing, and in particular to a method for regulating and controlling the stability of the sensory quality of a finished product tobacco sheet of a module formula. BACKGROUND

[0002] After tobacco leaves are produced in the field, cured in a curing barn, purchased by grade, processed by a tobacco company, threshed and cured, and sheet tobacco is aged, the tobacco leaves become raw materials for a cigarette company. Before the tobacco leaves are threshed and cured, technicians of the cigarette company, based on the quality of the tobacco leaves from different origins, different varieties, the same grade, or different grades, and according to the requirements of a cigarette brand, make a module formula for threshing and curing by combining different elements. After the tobacco leaves are threshed and cured according to the module formula, a standard unit of raw materials for the cigarette is formed, which prepares for the feeding of a tobacco processing procedure. Tobacco leaves are agricultural products that are collected from thousands of households by a tobacco business station and then allocated to a cigarette company. The quality of the tobacco leaves fluctuates widely due to the altitude, climate, soil, and planting level of the tobacco leaves. The quality fluctuation at the source poses a great challenge to the formation of a standard unit of raw materials by threshing and curing.

[0003] In recent years, the homogenization processing of threshing and curing has become a focus of the tobacco industry. The uniformity and stability of the quality of finished product tobacco sheets are focused on to ensure the uniformity and stability of the quality of cigarette products. The module formula mixing and matching function is realized by the threshing and curing process to form the final finished product tobacco sheet. The mixing and matching method of the module formula is the core to ensure the uniformity of the mixing and matching of the module formula and to reduce the sensory quality difference between batches. At present, the physicochemical index used to evaluate the homogenization processing of the curing and processing is the coefficient of variation of nicotine within and between batches of the module formula. However, for the raw materials of cigarettes, the evaluation of the uniformity and stability of the sensory quality (smoking quality) is the most core and fundamental index evaluation. When the tobacco leaves are allocated to a curing company or a tobacco turnover warehouse, the tobacco leaves are reclassified according to the requirements of each industrial company. The operators are commissioned workers during the reclassification of the tobacco leaves, and the classification technology is uneven. The uniformity of the classification quality is poor, and the quality inspection personnel work in shifts and are on duty in rotation. The quality inspection level fluctuates due to individual differences or the behavior state of the quality inspection personnel. Therefore, how to improve the uniformity and stability of the sensory quality within and between batches of the module formula has great significance. SUMMARY

[0004] The present application provides a method for regulating and controlling the stability of the sensory quality of a finished product tobacco sheet of a module formula, which solves the problem of the instability of the sensory quality within and between batches of the module formula during the homogenization processing of the curing and processing of the existing tobacco leaves. The method can improve the stability of the sensory quality of the finished product tobacco sheet of the module formula and reduce the fluctuation of the sensory quality within or between batches, thereby ensuring the quality uniformity of the cigarette products.

[0005] To achieve the above object, the present application provides the following technical solutions:

[0006] A method for regulating the stability of the sensory quality of a raised module formula finished sheet tobacco, comprising:

[0007] After the arrival of the tobacco leaves, a reference sample is prepared by a plurality of grading experts, so as to grade the tobacco leaves again according to the reference sample;

[0008] The sensory quality of the tobacco leaves in the second-grade sample is tested by smoking experts, so as to screen the second-grade reference sample of the tobacco leaves meeting the cigarette product or give feedback;

[0009] The colorimetric detection of a set number of the second-grade reference samples is performed by a colorimeter, so as to obtain the evaluation index data of the tobacco leaves;

[0010] The colorimetric evaluation index data is subjected to cluster analysis, so as to determine the quantitative standard range of the evaluation index of the second-grade sample of the tobacco leaves;

[0011] The tobacco leaves are graded again according to the second-grade reference sample of the tobacco leaves and the quantitative standard range.

[0012] Preferably, it further comprises:

[0013] According to the grouping of the second-grade operation of the tobacco leaves, a self-checking person is arranged in each group, and the colorimeter is used to carry out the patrol detection of the second-grade tobacco leaves in the group, so as to timely dispose the second-grade tobacco leaves not within the quantitative standard range, so as to eliminate the inflow of the unqualified products in the next process due to the grading technical level of the operation personnel.

[0014] Preferably, it further comprises:

[0015] During the packaging process of the second-grade tobacco leaves, the quality management and inspection personnel apply the colorimeter to perform the final detection according to the random sampling ratio of ≥10% according to the operation batch, so as to improve the frequency, quantity and efficiency of the quality inspection, and further eliminate the error caused by the sensory fluctuation of different quality inspection personnel.

[0016] Preferably, it further comprises:

[0017] According to the quantitative standard range, the tobacco leaves within the quantitative standard range are classified and stacked according to the upper limit, the middle limit and the lower limit.

[0018] Preferably, according to the detection results of the quality management and inspection personnel according to the random sampling ratio of ≥10%, the tobacco leaves of the upper limit to the middle limit are combined and stacked, and the tobacco leaves of the middle limit to the lower limit are combined and stacked, so as to be put into the material.

[0019] Preferably, it further comprises:

[0020] When the module formula is issued, the upper limit, the middle limit and the lower limit corresponding to the stacked tobacco are mixed according to the mixing algorithm required by the module formula.

[0021] Preferably, it further comprises:

[0022] After the tobacco module formula is threshed and redried, the colorimeter is used to detect the finished cut tobacco, and interval clustering analysis method is used to process the detection data of each index;

[0023] If the clustering interval is less than or equal to 2, the finished cut tobacco after threshing and redrying is accepted, and the tobacco is mixed according to the conventional method during the tobacco making;

[0024] If the clustering interval is greater than 2, the sensory quality is verified by smoking according to a sampling ratio of more than 5%.

[0025] Preferably, it further comprises:

[0026] After the sensory quality is verified by smoking, if there is no obvious difference in the sensory quality, the finished cut tobacco after threshing and redrying is accepted, and the tobacco is mixed according to the conventional method during the tobacco making;

[0027] If there is an obvious difference in the sensory quality, it is marked as S, and the tobacco is mixed according to a ratio of 10:1 during the tobacco making, wherein 10 is the ratio of the finished cut tobacco with no difference in the sensory quality, and 1 is the ratio of the finished cut tobacco marked as S.

[0028] Preferably, the colorimetric detection of the set number of the secondary classification reference samples by the colorimeter comprises:

[0029] After the standard white board is calibrated, the balanced samples are placed on the instrument measurement place with the front side up, and the L*, a* and b* values of each tobacco sample are recorded until stable, wherein L* is the brightness parameter of the tobacco sample, a* is the red-green color parameter of the tobacco sample, and b* is the yellow-blue color parameter.

[0030] Preferably, the colorimetric detection of the set number of the secondary classification reference samples by the colorimeter further comprises:

[0031] According to the color difference formula: The total color difference value ΔE is calculated, wherein L0* is the brightness parameter of the standard white board, a0* is the red-green color parameter of the standard white board, and b0* is the yellow-blue color parameter of the standard white board.

[0032] The application provides a method for regulating and controlling the stability of the sensory quality of module formula finished sheet tobacco, wherein during the production and evaluation of the secondary grading reference samples of tobacco leaves, the evaluation experts perform sensory quality evaluation and smoking test on the reference samples, and the reference samples of the secondary grading of tobacco leaves that meet the requirements of the cigarette product are screened out or feedback opinions are given, and then the quantitative range standard of the evaluation index of the secondary grading reference samples of tobacco leaves is determined by using a colorimeter. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present application, the drawings used in the embodiments will be briefly introduced as follows.

[0034] Figure 1 is a schematic diagram of a method for regulating and controlling the stability of the sensory quality of module formula finished sheet tobacco provided by the present application.

[0035] Figure 2 is a flowchart of the method for regulating and controlling the stability of the sensory quality of module formula finished sheet tobacco provided by the present application. DETAILED DESCRIPTION

[0036] In order to enable the persons skilled in the art to better understand the scheme of the embodiments of the present application, the embodiments of the present application will be further described in detail below with reference to the drawings and embodiments.

[0037] In view of the problem of the instability of the sensory quality of the module formula finished sheet tobacco in the secondary grading of tobacco leaves, the present application provides a method for regulating and controlling the stability of the sensory quality of module formula finished sheet tobacco, which can solve the problem of the instability of the sensory quality of the module formula finished sheet tobacco in the secondary grading of tobacco leaves, improve the stability of the sensory quality of the module formula finished sheet tobacco, reduce the fluctuation of the sensory quality of the module formula finished sheet tobacco, and thus ensure the quality homogeneity of the cigarette product.

[0038] As shown in Figure 1 and Figure 2 , a method for regulating and controlling the stability of the sensory quality of module formula finished sheet tobacco comprises the following steps.

[0039] S1: After the tobacco leaves are received, a plurality of evaluation experts perform reference sample preparation to perform secondary grading of the tobacco leaves according to the reference samples.

[0040] S2: An evaluation expert performs sensory quality evaluation and smoking test on the secondary grading preliminary sample to screen out the reference sample of the secondary grading of the tobacco leaves that meets the requirements of the cigarette product or give feedback opinions.

[0041] S3: Colorimetric detection is performed on a set number of the secondary classification reference samples by a colorimeter to obtain evaluation index data of the tobacco leaves.

[0042] S4: Cluster analysis is performed on the colorimetric evaluation index data to determine a quantitative standard range of the evaluation indexes of the secondary classification samples of the tobacco leaves.

[0043] S5: The tobacco leaves are secondary classified according to the secondary classification reference samples of the tobacco leaves and the quantitative standard range.

[0044] Specifically, when the reference samples for the secondary classification of the tobacco leaves are prepared, ≥5 single experts of experts skilled in the art of tobacco leaf rating of the cigarette industry are invited to prepare and determine the reference samples according to the upper limit, the middle limit and the lower limit of the quality factors in the standard. Furthermore, the experts skilled in the art of the industrial enterprises make sensory quality evaluation and inspection of the tobacco leaves on the reference samples according to the sensory quality design target of the cigarette products, and screen the secondary classification reference samples of the tobacco leaves that meet the cigarette products or provide feedback opinions for the experts skilled in the art of tobacco leaf rating to determine the secondary classification samples of the tobacco leaves. This method can make the quality target more clear and greatly eliminate the blindness of the secondary classification of the tobacco leaves caused by the appearance quality.

[0045] The secondary classification samples of the tobacco leaves are detected by applying the colorimeter (portable), ≥20 sets of reference samples are detected, the lightness L*, the chroma a* and b* and the color difference ΔE*ab are statistically analyzed, the above indexes are cluster analyzed to determine the range of each index of the secondary classification samples of the tobacco leaves, the quantitative range standard is issued, and the quantitative range standard is issued to the secondary classification execution mechanism of the tobacco leaves together with the reference samples. At the same time, the colorimeter is applied for process and result quality inspection. The qualitative appearance quality index is changed into the quantitative colorimetric index, and the quality fluctuation caused by the quality or quality judgment difference of the classification of the tobacco leaves caused by the individual difference of the human is eliminated.

[0046] The method further comprises: according to the grouping of the secondary classification operation of the tobacco leaves, a self-inspection personnel is arranged in each group, the colorimeter is used to carry out patrol detection of the secondary classification tobacco leaves in the group, and the secondary classification tobacco leaves not within the quantitative standard range are timely disposed to eliminate the inflow of the unqualified products caused by the classification technical level of the operation personnel.

[0047] Further, the method further comprises: during the packaging process of the secondary classification tobacco leaves, the quality management and inspection personnel apply the colorimeter for final detection according to ≥10% of the random sampling proportion according to the operation batch to improve the frequency, quantity and efficiency of the quality inspection, and further eliminate the error caused by the sensory fluctuation of different quality inspection personnel.

[0048] In practical application, the secondary classification and quality inspection organization mode of tobacco leaves is re-divided. First, according to the grouping of secondary classification of tobacco leaves, one self-inspection personnel is arranged in the group, and a colorimeter (portable) is used to carry out patrol inspection of secondary classified tobacco leaves in the group. The secondary classified tobacco leaves not in the quantitative range are disposed in time to eliminate the inflow of unqualified products caused by the classification technical level of the operation personnel. Second, during the packaging process of secondary classified tobacco leaves, the quality management and inspection personnel apply a colorimeter (portable) to conduct final inspection according to the operation batch and a random sampling ratio of ≥10% to improve the frequency, quantity and efficiency of quality inspection and eliminate the error caused by the sensory fluctuation of different quality inspection personnel.

[0049] The method further comprises: according to the quantitative standard range, classifying and stacking the tobacco leaves in the quantitative standard range according to the upper limit, the middle limit and the lower limit.

[0050] Further, the quality management and inspection personnel apply the detection results according to a random sampling ratio of ≥10% to combine and stack the tobacco leaves with an upper limit to a middle limit and combine and stack the tobacco leaves with a middle limit to a lower limit for feeding.

[0051] The method further comprises: when the module formula is issued, feeding and mixing the stacked tobacco leaves corresponding to the upper limit, the middle limit and the lower limit according to the mixing algorithm required by the module formula.

[0052] The method further comprises:

[0053] After the tobacco module formula is threshed and redried, a colorimeter is used to detect the finished cut tobacco, and interval clustering analysis method is applied to process the detection data of each index.

[0054] If the clustering interval is ≤2 categories, the finished cut tobacco after threshing and redrying is accepted, and the feeding of tobacco processing is carried out according to the conventional method.

[0055] If the clustering interval is >2 categories, sensory quality smoking verification is carried out according to a sampling ratio of >5%.

[0056] Further, the method further comprises:

[0057] After the sensory quality smoking verification, if there is no obvious difference in sensory quality, the finished cut tobacco after threshing and redrying is accepted, and the feeding of tobacco processing is carried out according to the conventional method. If there is obvious difference in sensory quality, it is marked as S, and the feeding of tobacco processing is carried out according to a ratio of 10:1, wherein 10 is the ratio of the finished cut tobacco with no difference in sensory quality, and 1 is the ratio of the finished cut tobacco marked as S.

[0058] Further, the colorimetric detection of the set number of the secondary classified reference samples by the colorimeter comprises:

[0059] After standard white board calibration, the balanced sample of each area is placed flat on the measuring position of the instrument with the front face upward for testing until the L*, a* and b* values of each section of the tobacco sample are recorded, wherein L* is the brightness parameter of the tobacco sample, a* is the red-green color parameter of the tobacco sample, and b* is the yellow-blue color parameter.

[0060] Further, the colorimetric detection on the set number of the secondary classification reference samples by the colorimeter further comprises:

[0061] According to the color difference formula: The total color difference value ΔE is calculated, wherein L0* is the brightness parameter of the standard white board, a0* is the red-green color parameter of the standard white board, and b0* is the yellow-blue color parameter of the standard white board.

[0062] It can be seen that the application provides a regulation method for improving the stability of the sensory quality of the module formula finished tobacco sheet, in the production and evaluation of the tobacco secondary classification reference samples, the evaluation experts perform sensory quality evaluation and test on the tobacco of the reference samples, filter the tobacco secondary classification reference samples meeting the cigarette products or provide feedback opinions, and then determine the evaluation index quantitative range standard of the tobacco secondary classification reference samples by the colorimeter. The problems of the instability of the sensory quality in the module formula batch and between batches during the leaf threshing and re-drying homogenization processing of the existing tobacco are solved, the stability of the sensory quality of the module formula finished tobacco sheet is improved, the sensory quality fluctuation in the batch or between batches is reduced, and the quality homogeneity of the cigarette products is ensured.

[0063] The above describes the structure, features and effects of the application according to the embodiments shown in the drawings, the above description is only the preferred embodiments of the application, but the application is not limited to the embodiments shown in the drawings, any change or modification made according to the idea of the application, or the equivalent embodiments with equivalent changes, as long as they are within the scope of the application, should be within the protection scope of the application.

Claims

1. A method for regulating the stability of the sensory quality of a finished sheet of a module recipe, characterized in that, The method comprises the following steps: After the tobacco leaves are delivered, reference samples are prepared by multiple grading experts, so that the tobacco leaves are secondarily graded according to the reference samples; The sensory quality of the secondarily graded primary samples is tested by smoking experts, so that the secondarily graded reference samples of the tobacco leaves that meet the requirements of the cigarette product are screened; The colorimetric detection is performed on a set number of the secondarily graded reference samples by using a colorimeter, so that the colorimetric evaluation index data of the tobacco leaves are obtained; The colorimetric evaluation index data are subjected to cluster analysis, so that the quantitative standard range of the evaluation index of the secondarily graded samples of the tobacco leaves is determined; The tobacco leaves are secondarily graded according to the secondarily graded reference samples of the tobacco leaves and the quantitative standard range.

2. The method for regulating the sensory quality stability of the raised module recipe finished sheet tobacco according to claim 1, characterized in that, Further comprising: According to the grouping of the secondary grading operation of the tobacco leaves, self-inspection personnel are arranged in each group, and the secondarily graded tobacco leaves in the group are subjected to patrol detection by using the colorimeter, so that the secondarily graded tobacco leaves that do not fall within the quantitative standard range are timely disposed, so as to eliminate the inflow of the unqualified products into the next process due to the grading technical level of the operation personnel.

3. The method according to claim 2, wherein the method is characterized by, Further comprising: During the packaging process of the secondarily graded tobacco leaves, the final detection is performed by using the colorimeter according to the operation batch and by the quality management and inspection personnel according to a random sampling ratio of ≥10%, so as to improve the frequency, quantity and efficiency of the quality inspection, and further eliminate the errors caused by the sensory fluctuation of different quality inspection personnel.

4. The method according to claim 3, wherein the method is characterized by, Further comprising: According to the quantitative standard range, the tobacco leaves within the quantitative standard range are classified and stacked according to the upper limit, the middle limit and the lower limit.

5. The method of claim 4, wherein the method is characterized by, According to the detection results of the quality management and inspection personnel according to a random sampling ratio of ≥10%, the tobacco leaves corresponding to the upper limit and the middle limit are combined and stacked, and the tobacco leaves corresponding to the middle limit and the lower limit are combined and stacked, so as to be put into the tobacco leaves.

6. The method for regulating the sensory quality stability of the raised module recipe finished sheet tobacco according to claim 5, characterized in that, Further comprising: When the module formula is issued, the stacked tobacco leaves corresponding to the upper limit, the middle limit and the lower limit are put into the tobacco leaves according to the mixing algorithm required by the module formula.

7. The method for regulating the sensory quality stability of the raised module recipe finished sheet tobacco according to claim 6, characterized in that, Further comprising: After the tobacco leaves are processed according to the module formula, the colorimeter detection is performed on the finished cut tobacco, and the interval cluster analysis method is applied to process the detection data of each index; If the clustering interval is ≤2 categories, the finished cut tobacco after the processing is accepted, and the tobacco leaves are put into the tobacco leaves according to the conventional method during the processing of the cut tobacco; If the clustering interval is >2 categories, the sensory quality verification is performed according to a sampling ratio of >5%.

8. The method for controlling the sensory quality stability of finished tobacco products with improved modular formulations according to claim 7, characterized in that, Further comprising: After the sensory quality verification, if there is no obvious difference in the sensory quality compared with the secondarily graded reference samples, the finished cut tobacco after the processing is accepted, and the tobacco leaves are put into the tobacco leaves according to the conventional method during the processing of the cut tobacco; If there is an obvious difference in the sensory quality, the finished cut tobacco is marked as S, and the tobacco leaves are put into the tobacco leaves according to a ratio of 10:1 during the processing of the cut tobacco, wherein 10 is the ratio of the finished cut tobacco with no difference in the sensory quality, and 1 is the ratio of the finished cut tobacco marked as S.

9. The method for regulating the sensory quality stability of the raised web sheet tobacco product according to any one of claims 1 to 8, characterized in that, The colorimetric detection of a set number of the secondarily graded reference samples by using the colorimeter comprises the following steps: After the standard whiteboard calibration, the balanced sample of each area is placed flat on the instrument measuring place with the front side up for testing until the value of each section of tobacco sample is recorded , , , wherein, is the lightness parameter of the tobacco sample, is the red-green chroma parameter of the tobacco sample, is the yellow-blue chroma parameter.

10. The method for controlling the sensory quality stability of finished tobacco products with improved modular formulations according to claim 9, characterized in that, The colorimetric detection of a set number of the secondarily graded reference samples by using the colorimeter further comprises the following steps: According to the color difference formula: , the total color difference value Δ E is calculated, wherein, is the lightness parameter of the standard white board, is the red-green chroma parameter of the standard white board, is the yellow-blue chroma parameter of the standard white board.

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