Method for detecting blending proportion of components in cut tobacco

Abstract

The invention belongs to the technical field of tobacco processing and detection, and particularly relates to a method for detecting a blending proportion of components in cut tobacco. The method comprises steps of pretreating samples of the components of the cut tobacco, building a calibration set sample, constructing a blending proportion prediction model based on synthetic chemical factor scores, establishing a near-infrared prediction model of synthetic factor scores, performing detection and judgment and the like. According to the method for detecting the blending proportion of the components in the cut tobacco, multiple synthetic chemical factors are taken as chemical characteristic values for characterizing the blending proportion of the cut tobacco, and evaluation requirements forblending uniformity of different types and different categories of the cigarette cut tobacco can be met better. With adoption of the method for detecting the blending proportion of the components in the cut tobacco, not only is the foundation laid for detection and judgment of the components of the cut tobacco, but also the good foundation can be laid for online continuous monitoring and control for blending uniformity of the cut tobacco, and the method has better practical value and popularization and application significance.

Description

technical field [0001] The invention belongs to the technical field of tobacco processing and detection, and in particular relates to a patent application matter for a method for detecting the blending ratio of each component in shredded tobacco. Background technique [0002] The ratio of components such as shredded leaves, shredded stems, expanded shredded tobacco, and shredded tobacco in shredded tobacco is the core composition of cigarette formula, and the quality of cigarettes can be fully reflected by the reasonable blending of each component after the blending and flavoring process. Therefore, if the blending ratio of each component in shredded tobacco is not appropriate or the blending result is not uniform enough, the sensory quality of the cigarette will be unstable, thereby adversely affecting the homogenization and stabilization of the cigarette. [0003] In the prior art, the adjustment of the blending ratio of shredded tobacco is mainly: first set the blending r...

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Problems solved by technology

[0005] "Determination of Tobacco Mixing Uniformity" (Standard No. YC / T 426-2012) stipulates a characteristic value constructed using total sugar, total plant alkaloids and potassium in shredded tobacco as an indicator for evaluating tobacco mixing uniformity; but this method The timeliness is poor, and it is only applicable to the conditions with significant difference in characteristic values, and the scope of application is limited; in addition, because it can only measure the degree of mixing uniformity, it is impossible to know the proportion of each component and the component that causes the difference in mixing uniformity, so has limited guiding value for production;

[0006] The patents "A Method for Measuring the Proportion of Shredded Tobacco in Cigarettes" (Application No. CN200610018050.8) and "A Method for Evaluating Mixing Uniformity of Cut Tobacco" (Application No. CN201110339610.0) disclose a method that uses manual separation and density method The method of liquid floating separation detects the proportion of each component of cut tobacco; although this method has high accuracy and reliability, the operation is cumbersome and time-consuming, and it cannot achieve fast and continuous detection, so it is not suitable for online monitoring applications ;

[0007] The patent "A Method for Measuring the Uniformity of Cut Tobacco, Cut Stems, and Reconstituted Tobacco Leaf Formula" (application number CN201710179755.6) discloses a method for evaluating the mixing uniformity of cut tobacco based on the characteristic values ​​of total sugar and cellulose, but the method More chemical composition testing is required, and there is no reference standard for the evaluation of this characteristic value, so it is time-consuming and has high uncertainty;

[0008] The patent "Near-Infrared Spectroscopy Method for Rapidly Detecting the Blending Ratio of Shredded Shreds and Shredded Leafs in the Silk-making Process" (application number CN201310033263.8) discloses a method to directly use the ratio of shredded tobacco components as a reference value to establish a near-infrared model to predict the shredded tobacco ratio , but in practical application, this method is only applicable to two-component shredded tobacco blending systems, and the blending of many different types of shredded tobacco is often involved in the actual production of cigarettes, so the application range of this method is relatively limited;

[0009] The patent "A Method for Measuring the Composition of Cut Tobacco Based on Near Infrared Spectroscopy" (Application No. CN201511005762.1) discloses a blending system of shredded tobacco based on three or more components. Ratio to establish a near-infrared model to predict the proportion of shredded tobacco; however, further analysis can find that this method will appear in the case of constant target component proportions. "; therefore, there are certain defects in the accuracy of its test results

[0010] To sum up, since the existing detection methods for tobacco blending ratio still have certain defects and limitations, it is still necessary to further design new and more reasonable detection and monitoring methods to lay the foundation for the stable production of cigarette quality

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