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A method for predicting the release of nnk in shredded tobacco smoke

A prediction method and release technology, applied in the field of tobacco, can solve the problems of strong detector specificity, large solvent consumption, low sample throughput, etc., and achieve the effect of improving the quality and safety of cigarette products, simple method, and convenient operation

Inactive Publication Date: 2019-07-23
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these methods require cumbersome steps such as rolling the single-grade shredded tobacco in the raw material of tobacco leaves, then sucking and trapping it in a smoking machine, and pre-processing the captured material, which has the disadvantages of long analysis time, large solvent consumption, and environmental pollution. Disadvantages of large size, strong detector specificity and low sample throughput

Method used

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  • A method for predicting the release of nnk in shredded tobacco smoke
  • A method for predicting the release of nnk in shredded tobacco smoke
  • A method for predicting the release of nnk in shredded tobacco smoke

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Flue-cured tobacco shreds and expanded cut stems from Argentina, Fujian, Guizhou, and Yunnan with different nicotine and reducing sugar contents were stored in an environment with a temperature of (20±1)°C and a humidity of (60±10)%, and balanced according to the national standard method for flue gas 48 hours standby.

[0039] Select the shredded tobacco sample to be tested, and follow the application method steps of the prediction model:

[0040] 1. Determination of the two chemical components nicotine and reducing sugar in the sample to be tested: GB / T 23225-2008 photometric method for the determination of nicotine content; YC / T 159-2002 continuous flow method for the determination of reducing sugar content. The results are shown in Table 3.

[0041] Table 3 Contents of nicotine and reducing sugar in each shredded tobacco sample

[0042]

[0043] 2. Predict the NNK release amount of the sample to be tested through the model coefficient: the two chemical compositi...

Embodiment 2

[0050] Take four kinds of finished cigarettes and store them in an environment with a temperature of (20±1)°C and a humidity of (60±10)%, and balance them for 48 hours according to the national standard method for flue gas. Use the GB / T 23225-2008 photometric method to measure the nicotine content; YC / T 159-2002 continuous flow method to measure the reducing sugar content; calculate the results of the two chemical components obtained from the detection according to the prediction model to obtain the Predicted value of NNK release: the above 5 different shredded tobaccos were smoked on a linear smoking machine, and the particle phase components were captured to determine the NNK content (as shown in Table 5). The physical properties of different cigarettes are different, resulting in different puffs, but the release of NNK follows a certain rule, that is, finished cigarette 1> finished cigarette 2> finished cigarette 3> finished cigarette 4, which has the same trend as the predi...

Embodiment 3

[0055] Take 1 kind of spice shredded tobacco, 1 kind of common shredded tobacco and 1 kind of shredded Burley tobacco and store them in an environment with a temperature of (20±1)°C and a humidity of (60±10)%, and equilibrate them for 48 hours according to the national standard method of flue gas. Use the GB / T 23225-2008 photometric method to measure the nicotine content; YC / T 159-2002 continuous flow method to measure the reducing sugar content; calculate the results of the two chemical components obtained from the detection according to the prediction model to obtain the Predicted value of NNK release: the above three different shredded tobaccos were made into single-material cigarettes with the same empty casing, and cigarettes with a weight error of 0.05g were selected to be smoked on a linear smoking machine, and the particle phase components were captured to determine the NNK content (Table 6). The physical properties of different shredded tobacco are different, resultin...

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Abstract

The invention discloses a method for predicting the NNK release amount of tobacco smoke, and relates to the technical field of tobacco. The method mainly comprises the following steps: detecting two chemical components (nicotine and reducing sugar) of a tobacco sample to be detected; fitting NNK measured values obtained from the measured results in combination with a pyrolytic platform and high performance liquid chromatography-tandem mass spectrometry to obtain a model parameter; and obtaining a predicted value of the NNK release amount from the measured results of the two chemical components in combination with model calculation. The method can predict the NNK content of smoke via a model by constant detection on the two chemical components of the tobacco sample to be detected, and can effectively prejudge the possible NNK cumulative content of a cigarette product to be formed according to the tobacco raw materials, thereby guiding raw material selection in the production process.

Description

technical field [0001] The invention relates to a method for predicting the release amount of NNK [4-(methylnitrosamine)-1-(3-pyridyl)-1-butanone] in cut tobacco smoke, belonging to the technical field of tobacco. Background technique [0002] Tobacco-specific nitrosamines (TSNAs) are a class of nitrosamines with the most abundant N-nitrosamine content in tobacco, which only exist in tobacco, tobacco products and cigarette smoke. NNK[4-(N-methyl- N-nitrosamine)-1-(3-pyridyl)-butanone] is one of the important ones, and its structure is as follows: [0003] [0004] NNK is listed as one of the seven harmful components of cigarette smoke to evaluate the safety of cigarettes. The release of NNK in cigarette smoke is of great significance to correctly evaluate the health hazards of smoking. [0005] The formula structure of shredded tobacco is a key factor affecting the release of harmful components in smoke. Formulators need to grasp how to use the stock tobacco leaves in o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/00G01N21/31G01N30/02
CPCG01N21/31G01N30/02G01N33/0062
Inventor 胡泽君陈晓东
Owner XIAMEN UNIV
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