Near-infrared characterizing method for quality change in tobacco silk producing procedures

A near-infrared and tobacco-based technology, applied in the direction of measuring devices, material analysis through optical means, instruments, etc., can solve the problems of sensory quality fluctuation, long chemical analysis cycle, unsuitable for sample process quality evaluation, etc., and achieve stable effect and quality , the effect of short cycle

Active Publication Date: 2011-04-13
CHINA TOBACCO SICHUAN IND CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of the physical inspection method is that it can only reflect the change of the physical properties of the sample, but not the change of the internal quality of the sample; the disadvantage of the chemical analysis method is that it can only reflect a few limited chemical indicators in tobacco, and the cycle of chemical analysis is relatively long, which is not suitable. The disadvantage of the sensory evaluation method is that it is easily affected by the physical condition of the person and the amount of smoking, resulting in fluctuations in the sensory quality, and this method is not suitable for the evaluation of the process quality of a large number of samples

Method used

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  • Near-infrared characterizing method for quality change in tobacco silk producing procedures
  • Near-infrared characterizing method for quality change in tobacco silk producing procedures
  • Near-infrared characterizing method for quality change in tobacco silk producing procedures

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Near-infrared characterization of tobacco quality changes during the loosening and rehydration process of silk-making threads. Set KB-01 as a blank sample according to step 1, and set SS-01, SS-02, and SS-03 as comparison samples according to step 2. Their respective process parameters are shown in Table 1:

[0022]

[0023]

[0024] Table 1 Loose moisture regain process parameters

[0025] For the blank sample KB-01 and the comparative samples SS-01, SS-02, and SS-03, go through steps 3 to 6: collect the near-infrared Scanning spectrum, acquisition range is 7500cm -1 to 4000cm -1 , subtract the scanning spectrum of the blank sample KB-01 from the scanning spectra of the comparative samples SS-01, SS-02, and SS-03, and obtain the following respectively figure 1 The near-infrared difference spectra of SS-01, SS-02, and SS-03. From figure 1 It can be seen that when the process parameters are different, the near-infrared difference spectra of the comparative sam...

Embodiment 2

[0027] Near-infrared characterization of tobacco quality changes during the microwave loosening process on the silk-making line. Set KB-02 as a blank sample according to step 1, and set WB-01, WB-02, and WB-03 as comparison samples according to step 2. Their respective process parameters are shown in Table 2:

[0028]

[0029]

[0030] Table 2 Microwave Loose Process Parameters

[0031] For the blank sample KB-02 and the comparative samples WB-01, WB-02, and WB-03, go through steps 3 to 6: collect the near-infrared Scanning spectrum, acquisition range is 9000cm -1 to 4000cm -1 , subtract the scanning spectrum of the blank sample KB-02 from the scanning spectrum of the comparative samples WB-01, WB-02, and WB-03, and obtain the following respectively figure 2 The near-infrared difference spectrum of WB-01, WB-02, WB-03. From figure 2 It can be seen that when the process parameters are different, the near-infrared difference spectra of the comparison samples WB-01, ...

Embodiment 3

[0033] Near-infrared characterization of changes in tobacco quality during the wire-cutting process. Set KB-03 as a blank sample according to step 1, and set QS-1, QS-2, and QS-3 as comparison samples according to step 2, and their respective process parameters are shown in Table 3:

[0034]

[0035]

[0036] Table 3 Shredded Process Parameters

[0037] For the blank sample KB-03 and the comparative samples QS-1, QS-2, and QS-3, go through steps 3 to 6: collect the near-infrared Scanning spectrum, acquisition range is 7000cm -1 to 4500cm -1 , subtract the scanning spectrum of the blank sample KB-03 from the scanning spectrum of the comparative samples QS-01, QS-02, and QS-03, and obtain the following respectively image 3 The near-infrared difference spectrum of QS-01, QS-02, QS-03. From image 3 It can be seen that when the process parameters are different, the near-infrared difference spectra of the comparison samples QS-01, QS-02, and QS-03 have obvious differenc...

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Abstract

The invention discloses a near-infrared characterizing method for quality change in tobacco silk producing procedures, which chooses process set data during tobacco silk producing process as basic process parameters to generate a blank sample and changes the process parameters so as to generate a comparison sample; the blank sample and the comparison sample are scanned and pass through a sieve of40 meshes, thus obtaining respective near-infrared spectrums; the near-infrared spectrum of the blank sample is subtracted from the near-infrared spectrum of the comparison sample, thus obtaining a near-infrared difference spectrum; and the difference of internal quality change of the sample when the process parameters are adjusted is characterized by being compared with the change of the near-infrared difference spectrum. The method overcomes the defects of long period, failure in measuring a plurality of samples and unstable measurement existing in the prior art, is a method that has short period and stable effect and quality and can conduct measurement to a plurality of samples so as to conduct near-infrared characterizing on the internal quality change of tobacco during the silk production process, and can be applied to the tobacco production industry.

Description

technical field [0001] The invention relates to a method for making shredded tobacco, in particular to a near-infrared characterization method for quality changes in the shredded tobacco process. Background technique [0002] To characterize the change of tobacco’s intrinsic quality during the shredded process, the method of simple physical inspection was initially used, such as measuring the moisture content of shredded tobacco, filling force and other indicators to reflect the impact of changes in process parameters on tobacco quality. Later, chemical analysis methods were introduced to evaluate the quality of cigarette processing, usually based on conventional chemical components such as total sugar, reducing sugar, total nitrogen, total plant alkaloids, chlorine, potassium in tobacco, and tar, nicotine, and carbon monoxide in smoke. To reflect changes in the intrinsic quality of tobacco. The 2003 edition of the "Cigarette Process Specification" formulated by the State T...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/35G01N21/359
Inventor 邓发达李东亮施丰成戴亚陈昆燕唐士军薛芳
Owner CHINA TOBACCO SICHUAN IND CO LTD
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