A method for detecting backfilling rate of reconstructed stalks and its application

Abstract

The invention provides a detection method for the refill rate of reconstituted shredded stems and an application thereof. The detection method can directly calculate the refill rate of reconstituted shredded stems according to a formula; the detection method is suitable for determining the refill rates of different reconstituted shredded stems, does not need to determine the extraction rate of the reconstituted shredded stems, but uses a volumetric flask to determine the volume of blank shredded stems and reconstituted shredded stems after crushing, and finally calculates the refill rate of the reconstituted shredded stems by calculating the weight difference of the volumetric flask before and after the determination. The method not only has the advantages of simple and convenient operation, but also the detection result is true and reliable, thereby effectively improving the production of reconstituted shredded stems and the detection efficiency in research, and has good economy and practicality.

Description

Technical Field

[0001] The invention belongs to the technical field of reconstituted shredded stem detection, and particularly relates to a method for detecting a reconstituted shredded stem refill rate and an application thereof. Background Art

[0002] Reconstituted cut stems, a new tobacco product, are produced by shredding, extracting, and drying tobacco stems to obtain blank cut stems. These are then backfilled with a backfilling liquid component extracted and concentrated from tobacco fines and then added with tobacco flavorings and flavors. The development of reconstituted cut stems significantly improves their sensory quality, increases their use in cigarette formulations, and reduces tobacco leaf consumption. The application prospects for reconstituted cut stems are expanding. Compared to traditional cut stems, reconstituted cut stems offer higher filling values, less odor, and a stronger natural tobacco aroma. Furthermore, the design of the backfilling liquid during the backfilling process allows for the reconstituted cut stems to have adjustable and controllable sensory qualities and chemical composition. Reconstituted cut stems have a positive impact on improving cigarette product quality.

[0003] The reconstituted stem refill rate is the percentage of the total dry matter weight of the reconstituted stems. Reconstituted stems are made by backfilling backfill liquid into bare stems and then drying them. Therefore, the total dry matter of the backfill = the dry weight of the reconstituted stems - the dry matter weight of the bare stems backfilled. The formula for defining the reconstituted stem refill rate is: Where C% is the actual refill rate of regenerated stems, m 梗 is the weight of reconstituted stems, m 空 is the weight of blank stems, w 梗 is the moisture content of the reconstituted stems, w 空 is the moisture content of the blank shredded stem. This formula can be used to obtain the true backfill rate of the laboratory-reconstructed shredded stem sample.

[0004] Since the reconstituted shredded stem production line is a continuous production mode, the weight of the blank shredded stems cannot be determined. Therefore, the above-mentioned definition formula cannot be used to effectively and quickly determine the refill rate of the reconstituted shredded stem products on the production line. CN108444861A discloses a method for determining the refill rate of reconstituted shredded stem products, which relates to the field of reconstituted shredded stem production technology and includes the following steps: (1) weighing the blank reconstituted shredded stems m 空 and reconstituted stem backfill liquid 液 (2) drying the reconstructed shredded stems after backfilling; (3) obtaining the finished reconstructed shredded stems and weighing them. The mass of the finished reconstructed shredded stems is m 梗 (4) The moisture content of blank reconstructed stems w and the moisture content of reconstructed stems w 梗The invention provides a method for determining the total alkaloid content of the reconstituted shredded stems by performing a determination; (5) producing at least five reconstituted shredded stem products with different backfill rates; (6) determining the total alkaloid content N% of the reconstituted shredded stem products; (7) analyzing the linear regression equation "total alkaloids / backfill rate" C = a × N + b; (8) determining the total alkaloid content N% of the reconstituted shredded stem products to be measured; and (9) substituting N% into the linear regression equation C = a × N + b. The detection method provided by the invention has the advantage of being able to conveniently and accurately determine the backfill rate of reconstituted shredded stems.

[0005] CN106680138A discloses a method for determining the refill rate of new-type cut stems. By measuring the colorimetric appearance of the new-type cut stems and comparing the colorimetric with that of the new-type cut stems according to a corresponding working model, the corresponding refill rate is determined. By measuring the colorimetric appearance of the new-type cut stems, the present invention can conveniently, quickly, and accurately determine the corresponding refill rate, thereby enabling real-time monitoring and guidance of the new-type cut stem production process.

[0006] CN103115842A discloses a method for measuring the refill rate of reconstituted cut stems, comprising: (1) drying a sample box and a reconstituted cut stem product, cooling them in a dryer, and weighing the weights to record as sample box m0 and reconstituted cut stem product m1; (2) placing the reconstituted cut stems in a sample box, soaking and filtering them twice in water, then drying them, cooling them in a dryer, and weighing them m2; (3) calculating the reconstituted cut stem refill rate x: x = [m1-(m2-m0)] / m1×100%; or, taking multiple reconstituted cut stem samples of different weights, performing steps (1) and (2) simultaneously, and using m1 as the horizontal coordinate and m1-(m2-m0) as the vertical coordinate, the slope obtained by linear fitting is the reconstituted cut stem refill rate x. This determination method can effectively solve the current problem of reconstituted cut stem refill rate detection in cigarette companies, and provides a feasible method for simple, convenient, accurate, and objective detection of reconstituted cut stem refill rate.

[0007] Currently, the aforementioned methods for determining the refill rate of reconstituted shredded stems all rely on the extraction-weighing method. This method primarily reflects the refill rate by measuring the extraction rate of the finished shredded stems. However, several factors can affect the results. First, the substances extracted during the measurement process are not entirely consistent with the refill components and may also include water-soluble components from the unprocessed shredded stems themselves. Second, due to extraction limitations, the reconstituted shredded stems' refill components may not be completely extracted during the measurement process. Therefore, the extraction rate of the reconstituted shredded stems does not accurately reflect their refill rate. Finally, the aforementioned extraction-weighing method takes a long time, up to eight hours, and the feedback is delayed.

[0008] Therefore, it is now necessary to develop a new method for determining the refill rate of reconstituted shredded stem products so as to quickly and accurately determine the refill rate of reconstituted shredded stems. Summary of the Invention

[0009] In view of the shortcomings of the prior art, the present invention aims to provide a method for detecting the refill rate of reconstituted shredded stems and its application. The detection method is simple and quick to operate and can quickly and accurately determine the refill rate of reconstituted shredded stems.

[0010] To achieve this object, the present invention adopts the following technical solutions:

[0011] In a first aspect, the present invention provides a method for detecting the refill rate of reconstituted cut stems, the method comprising the following steps:

[0012] (1) Take blank volumetric flask A and blank volumetric flask B, weigh them, and record them as M A and M B ;

[0013] (2) Place the blank cut stem powder and the reconstituted cut stem powder in the blank volumetric flask A and the medium blank volumetric flask B described in step (1) respectively, and weigh them to determine the volume. The weights are recorded as M. 空白 and M 再造 ;

[0014] (3) The M obtained in step (1) A 、M B And M obtained in step (2) 空白 、M 再造 Substitution Calculation is performed to obtain the regenerated stem fill rate.

[0015] The detection method provided by the present invention first requires accurately weighing the weights of two volumetric flasks and recording them as M and A and M B Then the blank stem powder and the reconstituted stem powder prepared in advance were placed in the two blank volumetric flasks and fixed to volume. After the volume was fixed, the weight was weighed and recorded as M 空白 and M 再造 , and finally we get M A 、M B 、M 空白 and M 再造 Substitute into the formula The reconstituted shredded stem refill rate can be directly obtained by calculation. The detection method provided by the present invention is easy and quick to operate. After verification, it was found that the reconstituted shredded stem refill rate obtained by detection is very close to the actual reconstituted shredded stem refill rate, indicating that the detection method provided by the present invention is very accurate.

[0016] It should be noted that the above verification method refers to comparing the backfill rate detected by the present invention with the actual backfill rate of the reconstituted cut stem powder used in step (2).

[0017] Preferably, the capacity of the blank volumetric flask A and the blank volumetric flask B in step (1) are both 10 mL.

[0018] Preferably, the weighing in step (1) and step (2) is performed using an electronic balance.

[0019] Preferably, the particle size of the blank cut stem powder and the reconstituted cut stem powder in step (2) is no greater than 0.125 μm, for example, 0.12 μm, 0.115 μm, 0.11 μm, 0.105 μm, 0.1 μm, 0.095 μm, 0.09 μm, 0.085 μm or 0.08 μm, etc.

[0020] Preferably, the blank cut stem powder and the reconstituted cut stem powder in step (2) have the same water content.

[0021] As a preferred technical solution of the present invention, in order to make the test result more accurate, it is necessary to make the water content of the blank cut stem powder and the reconstituted cut stem powder the same.

[0022] Preferably, the blank shredded stem powder in step (2) is obtained by crushing blank shredded stems.

[0023] Preferably, the blank shredded stems are prepared by the following method, comprising: washing the stems, steaming the stems, pressing the stems, cutting the stems, removing the contents of the shredded stems, and drying the shredded stems to obtain the blank shredded stems.

[0024] Preferably, the temperature of the washed stems is 20-60°C, for example, 25°C, 30°C, 35°C, 40°C, 45°C, 50°C or 55°C.

[0025] Preferably, the outlet moisture content of the steamed stems is 29.5-32.5%, for example, 29.7%, 29.9%, 31.2%, 31.5%, 31.7%, 31.9%, 32.1% or 32.3%.

[0026] Preferably, the thickness of the shredded stems after pressing is 0.7-0.9 mm, for example, 0.72 mm, 0.74 mm, 0.76 mm, 0.78 mm, 0.8 mm, 0.82 mm, 0.84 mm, 0.86 mm or 0.88 mm.

[0027] Preferably, the width of the cut stems is 0.11-0.13 mm, for example, 0.112 mm, 0.114 mm, 0.116 mm, 0.118 mm, 0.12 mm, 0.122 mm, 0.124 mm, 0.126 mm or 0.128 mm.

[0028] Preferably, the removal of the stem contents is performed by water extraction.

[0029] Preferably, the temperature for drying the shredded stems is 110-130°C, for example, 112°C, 114°C, 116°C, 118°C, 120°C, 122°C, 124°C, 126°C or 128°C.

[0030] Preferably, the drying time is 0.25 to 0.75 h, for example, 0.3 h, 0.35 h, 0.4 h, 0.45 h, 0.5 h, 0.55 h, 0.6 h, 0.65 h or 0.7 h.

[0031] Preferably, the reconstituted shredded stem powder in step (2) is obtained by crushing the reconstituted shredded stem.

[0032] Preferably, the reconstructed shredded stems are prepared by the following method, comprising: backfilling the blank shredded stems with backfilling liquid, extruding and homogenizing, and drying to obtain the reconstructed shredded stems.

[0033] It should be noted that the reconstituted shredded stems to be tested in the detection method provided by the present invention are obtained by backfilling a backfilling liquid into a blank shredded stem at a certain backfilling rate. Therefore, in order to verify the accuracy of the detection method provided by the present invention, during the experimental stage, the actual backfilling rate of the reconstituted shredded stems can be tested when preparing the required reconstituted shredded stems. Specifically, the testing method includes the following steps:

[0034] (B1) Take blank stems, weigh them, and record them as m 空 ;

[0035] (B2) evenly backfilling the blank shredded stems obtained in step (A1) with a backfilling liquid, and diluting the backfilling liquid with water if necessary to obtain reconstituted shredded stems;

[0036] (B3) After the reconstituted shredded stems obtained in step (B2) were allowed to stand for 5 minutes, they were dried in a cyclone oven and then placed in a constant temperature chamber. After balancing for 24 hours, they were weighed and the mass was recorded as m 梗 ;

[0037] (B4) Using the oven method, measure the moisture content of the blank shredded stems obtained in step (B1) and the reconstituted shredded stems obtained in step (B3), and record the result as w 空 、w 梗 ;

[0038] (B5) m obtained in step (B1) 空 , m obtained in step (B2) 梗 And w obtained in step (B3) 空 and w 梗 Substitution The actual refill rate C% of reconstituted stems was calculated.

[0039] Preferably, the volume determination in step (2) is performed under shaking conditions.

[0040] Preferably, the frequency of the oscillation is 200-300 rpm, for example, 210 rpm, 220 rpm, 230 rpm, 240 rpm, 250 rpm, 260 rpm, 270 rpm, 280 rpm or 290 rpm.

[0041] Preferably, the shaking time is 1 to 3 minutes, for example, 1.2 minutes, 1.4 minutes, 1.6 minutes, 1.8 minutes, 2 minutes, 2.2 minutes, 2.4 minutes, 2.6 minutes or 2.8 minutes.

[0042] Preferably, the oscillation is performed on an orbital oscillator.

[0043] As a preferred technical solution, the detection method includes the following steps:

[0044] (A1) washing the stems, steaming the stems, pressing the stems, cutting the stems, removing the contents of the shredded stems, and drying the shredded stems to obtain the blank shredded stems;

[0045] (A2) backfilling the backfilling liquid into the blank cut stem carrier in step (A1), extruding and homogenizing, and drying to obtain reconstituted cut stems;

[0046] (A3) pulverizing the blank cut stem carrier obtained in step (A1) and the reconstituted cut stem obtained in step (A2) to obtain blank cut stem powder and reconstituted cut stem powder having a particle size of no greater than 0.125 μm;

[0047] (1) Take blank volumetric flask A and blank volumetric flask B, weigh them using an electronic balance, and record them as M A and M B ;

[0048] (2) The blank stem powder and the reconstituted stem powder obtained in step (A3) are placed in the blank volumetric flask A and the medium blank volumetric flask B provided in step (1) respectively, and the volume is fixed under shaking conditions. The shaking frequency is 200 to 300 rpm and the shaking time is 1 to 3 minutes. The weight is weighed using an electronic balance and recorded as M. 空白 and M 再造 ;

[0049] (3) The M obtained in step (1) A 、M B And M obtained in step (2) 空白 、M 再造 Substitution Calculation is performed to obtain the regenerated stem fill rate.

[0050] In a second aspect, the present invention provides an application of the detection method described in the first aspect in tobacco preparation.

[0051] Compared with the prior art, the present invention has the following beneficial effects:

[0052] The detection method provided by the present invention first requires accurately weighing the weights of two volumetric flasks and recording them as M and A and M B Then the blank stem powder and the reconstituted stem powder prepared in advance were placed in the two blank volumetric flasks and fixed to volume. After the volume was fixed, the weight was weighed and recorded as M 空白 and M 再造 , and finally we get M A 、M B 、M 空白 and M 再造 Substitute into the formula The reconstituted shredded stem refill rate can be directly obtained by calculation. The detection method is easy and quick to operate and is applicable to the determination of different reconstituted shredded stem refill rates. The reconstituted shredded stem refill rate does not need to be reflected by measuring the extraction rate of the reconstituted shredded stem. Instead, the reconstituted shredded stem is directly calculated by measuring the weight difference before and after the volume is fixed by adjusting the volume of the blank shredded stem and the reconstituted shredded stem that have been dried to absolute dryness. The operation is simple and convenient, and the measurement results are true and reliable, thereby effectively improving the detection efficiency in the production, application and technical research of reconstituted shredded stems, and having good economy and practicality. DETAILED DESCRIPTION

[0053] The technical solution of the present invention is further described below by way of specific embodiments. It should be understood by those skilled in the art that the embodiments are merely to help understand the present invention and should not be regarded as specific limitations of the present invention.

[0054] Preparation Example 1

[0055] A method for preparing reconstituted shredded stems, comprising the following steps:

[0056] (1) washing the stems, steaming the stems, pressing the stems, cutting the stems, removing the stem contents, and drying the stems at 40°C to obtain blank stems;

[0057] (2) Use an electronic balance to weigh the blank stems obtained in step (1) and record it as m 空 and evenly backfilling the blank shredded stems with the backfilling liquid. If necessary, the backfilling liquid can be diluted with water to obtain reconstructed shredded stems;

[0058] (3) After standing for 5 minutes, the reconstituted stems obtained in step (1) were dried in a cyclone oven and then placed in a constant temperature chamber. After balancing for 24 hours, the weight was weighed and recorded as m 梗 , and obtain the reconstructed shredded stems.

[0059] The moisture content of the blank shredded stems provided in step (1) and the reconstituted shredded stems obtained in step (3) of this preparation example was measured using an oven method, and the result was recorded as w 空 =13.07% and w 梗 =12.84%; Finally, m 空 =20, m 梗 =27.67, w 空 =13.07 and w 梗 =12.84Substitute The actual refill rate C% of the reconstituted shredded stems provided in this preparation example was calculated to be 27.9%.

[0060] Preparation Example 2

[0061] A method for preparing reconstituted shredded stems, which differs from Preparation Example 1 in that the reconstituted shredded stems m obtained in step (3) are 梗 =30.08 g, and other parameters and steps are the same as those in Preparation Example 1.

[0062] The moisture content of the blank shredded stems provided in step (1) and the reconstituted shredded stems obtained in step (3) of this preparation example was measured using an oven method, and the result was recorded as w 空 =13.07% and w 梗 =14.49%; m 空 =20, m 梗 =30.08, w 空 =13.07 and w 梗 =14.49Substitute The actual refill rate C% of the reconstituted shredded stems provided in this preparation example was calculated to be 32.41%.

[0063] Preparation Example 3

[0064] A method for preparing reconstituted shredded stems, which differs from Preparation Example 1 in that the mass of the reconstituted shredded stems obtained in step (3) is m 梗 =31.47 g, and other parameters and steps are the same as those in Preparation Example 1.

[0065] The moisture content of the blank shredded stems provided in step (1) and the reconstituted shredded stems obtained in step (3) of this preparation example was measured using an oven method, and the result was recorded as w 空 =13.07% and w 梗 =12.88%; m 空 =20, m 梗 =31.47, w 空 =13.07 and w 梗 =12.88Substitute The actual refill rate C% of the reconstituted shredded stems provided in this preparation example was calculated to be 36.59%.

[0066] Preparation Example 4

[0067] A method for preparing reconstituted shredded stems, which differs from Preparation Example 1 in that the mass of the reconstituted shredded stems obtained in step (3) is m 梗 =36.08 g, and other parameters and steps are the same as those in Preparation Example 1.

[0068] The moisture content of the blank shredded stems provided in step (1) and the reconstituted shredded stems obtained in step (3) of this preparation example was measured using an oven method, and the result was recorded as w 空 =13.07% and w 梗 =18.35%; m 空 =20, m 梗 =36.08, w 空 =13.07 and w 梗 =18.35Substitute The actual refill rate C% of the reconstituted shredded stems provided in this preparation example was calculated to be 40.99%.

[0069] Preparation Example 5

[0070] A method for preparing reconstituted shredded stems, which differs from Preparation Example 1 in that the mass of the reconstituted shredded stems obtained in step (3) is m 梗 =37.86 g, and other parameters and steps are the same as those in Preparation Example 1.

[0071] The moisture content of the blank shredded stems provided in step (1) and the reconstituted shredded stems obtained in step (3) of this preparation example was measured using an oven method, and the result was recorded as w 空 =13.07% and w 梗 =16.23%; m 空 =20, m 梗 =36.08, w 空 =13.07 and w 梗 =16.23Substitute The actual refill rate C% of the reconstituted shredded stems provided in this preparation example was calculated to be 45.19%.

[0072] Preparation Example 6

[0073] A method for preparing reconstituted shredded stems, which differs from Preparation Example 1 in that the mass of the reconstituted shredded stems obtained in step (3) is m 梗 =38.46 g, and other parameters and steps are the same as those in Preparation Example 1.

[0074] The moisture content of the blank shredded stems provided in step (1) and the reconstituted shredded stems obtained in step (3) of this preparation example was measured using an oven method, and the result was recorded as w 空 =13.07% and w 梗=14.24%; m 空 =20, m 梗 =36.08, w 空 =13.07 and w 梗 =14.24Substitute The actual refill rate C% of the reconstituted shredded stems provided in this preparation example was calculated to be 47.28%.

[0075] Preparation Example 7

[0076] A method for preparing reconstituted shredded stems, which differs from Preparation Example 1 in that the mass of the reconstituted shredded stems obtained in step (3) is m 梗 =38.51 g, and other parameters and steps are the same as those in Preparation Example 1.

[0077] The moisture content of the blank shredded stems provided in step (1) and the reconstituted shredded stems obtained in step (3) of this preparation example was measured using an oven method, and the result was recorded as w 空 =13.07% and w 梗 =10.94%; m 空 =20, m 梗 =38.51, w 空 =13.07 and w 梗 =1094Substitute The actual refill rate C% of the reconstituted shredded stems provided in this preparation example was calculated to be 49.31%.

[0078] Example 1

[0079] A method for detecting the refill rate of reconstituted cut stems, the method specifically comprising the following steps:

[0080] (1) Grinding the blank stems obtained in step (1) of Preparation Example 1 and the reconstituted stems finally obtained in Preparation Example 1 to obtain blank stem powder and reconstituted stem powder with a particle size of no more than 120 mesh, respectively;

[0081] (2) Take two 10mL blank volumetric flasks A and B, weigh them using an electronic balance, and record them as M A and M B ;

[0082] (3) The blank stem powder and the reconstituted stem powder obtained in step (1) were placed in the blank volumetric flask A and the medium blank volumetric flask B provided in step (2) respectively, and fixed to volume under shaking conditions. The shaking frequency was 250 rpm and the shaking time was 2 min. The weights were weighed using an electronic balance and recorded as M and M respectively. 空白 and M 再造 ;

[0083] (4) The M obtained in step (2)A 、M B And M obtained in step (3) 空白 、M 再造 Substitution Calculation is performed to obtain the regenerated stem fill rate.

[0084] Examples 2 to 7

[0085] A method for detecting a refill rate of reconstituted shredded stems is disclosed. The difference between the detection method and Example 1 is that the reconstituted shredded stems obtained in Preparation Examples 2 to 7 are used to replace the reconstituted shredded stems obtained in Preparation Example 1, and other parameters and steps are the same as those in Example 1.

[0086] Data Analysis:

[0087] The relevant parameters and test results of the detection methods provided in Examples 1 to 7 of the present invention are shown in Table 1:

[0088] Table 1

[0089]

[0090] Comparing the data in Table 1, it can be seen that the actual refill rate and the detected refill rate of the reconstituted shredded stems detected in Examples 1 to 7 are very close, indicating that the method provided by the present invention has high accuracy and is very convenient to detect.

[0091] The applicant states that while the present invention uses the aforementioned embodiments to illustrate a method for detecting the refill rate of reconstituted cut stems and its application, the present invention is not limited to the aforementioned embodiments. This does not necessarily mean that the present invention must rely on the aforementioned embodiments in order to be implemented. Persons skilled in the art should understand that any improvements to the present invention, equivalent substitutions for various raw materials in the present invention, additions of auxiliary ingredients, and selection of specific methods, etc., fall within the scope of protection and disclosure of the present invention.

Claims

1. A method for detecting the refill rate of regenerated shredded stems, characterized in that: The detection method comprises the following steps: (A1) washing stems, steaming stems, pressing stems, cutting stems, removing stem shreds, and drying stem shreds to obtain blank stem shreds; (A2) backfilling the backfilling liquid onto the blank shredded stems obtained in step (A1), extruding and homogenizing, and drying to obtain reconstructed shredded stems; (A3) crushing the blank stem shreds obtained in step (A1) and the reconstituted stem shreds obtained in step (A2) to obtain blank stem shreds powder having a particle size of no greater than 0.125 μm and reconstituted stem shreds powder having a particle size of no greater than 0.125 μm; (1) Take blank volumetric flask A and blank volumetric flask B and weigh them using an electronic balance, record them as M A and M B ; (2) The blank stem powder and the reconstituted stem powder obtained in step (A3) are placed in the blank volumetric flask A and the blank volumetric flask B provided in step (1) respectively, and fixed to volume under shaking conditions, the shaking frequency is 200 to 300 rpm, the shaking time is 1 to 3 min, and the weight is weighed using an electronic balance, which is recorded as M. 空白 and M 再造 ; (3) The M obtained in step (1) A 、M B And M obtained in step (2) 空白 、M 再造 Substitution Calculation is performed to obtain the regenerated stem refill rate; The blank shredded stem powder and the reconstituted shredded stem powder in step (2) have the same water content.

2. The detection method according to claim 1, characterized in that: The capacity of the blank volumetric flask A and the blank volumetric flask B in step (1) is 10 mL.

3. The detection method according to claim 1, characterized in that: The temperature of the washed stems is 20-60°C.

4. The detection method according to claim 1, characterized in that: The outlet moisture content of the steamed stems is 29.5-32.5%.

5. The detection method according to claim 1, characterized in that: The thickness of the shredded stems after the pressing is 0.7-0.9 mm.

6. The detection method according to claim 1, characterized in that: The width of the cut stems is 0.11-0.13 mm.

7. The detection method according to claim 1, characterized in that: The removal of stem contents is performed by water extraction.

8. The detection method according to claim 1, characterized in that: The temperature of drying the shredded stems is 110-130°C.

9. The detection method according to claim 8, characterized in that: The drying time is 0.25 to 0.75 h.

10. The detection method according to claim 1, characterized in that: The shaking was performed on an orbital oscillator.

11. Use of the detection method according to any one of claims 1 to 10 in tobacco preparation.

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