Method for detecting flavoring uniformity of cut tobacco based on main component analysis technology

Abstract

The invention discloses a method for detecting the flavoring uniformity of cut tobacco based on a main component analysis technology. The method comprises the following steps: (1) preparing samples: uniformly taking samples by time or position from the flavoring outlet of a cut cigarette making line; (2) placing every sample in a brown headspace bottle, adding an internal standard solvent, and screwing bottle caps to seal the bottles; (3) detecting the content of volatile and semi-volatile components in every sample in a headspace-gas chromatograph / mass spectrometer (HS-GC / MS) full-scanning manner, performing mass spectrum database retrieval to achieve qualitative diagnosis, and performing quantification through an internal standard technology; (4) performing dimension reducing processingon the detection data of every sample through a PCA main component analysis technology, and projecting the data in a two-dimensional plane or a three-dimensional space; and (5) drawing a PCA map by using computer software, and detecting the flavoring uniformity of the cut tobacco according to the discrete degree of distribution of data points. The method provides a scientific and intuitive methodfor evaluating the flavoring uniformity of the cut cigarette, and can be used for detecting the flavoring uniformity of cut tobacco in different cut tobacco flavoring devices or different flavoring processes.

Description

technical field [0001] The invention relates to the technical field of tobacco manufacturing, in particular to a method for detecting the flavoring uniformity of shredded tobacco based on a principal component analysis method. Background technique [0002] During the cigarette manufacturing process, the shredded tobacco and shredded stalks are the key processes in the shredded tobacco production line. The main function is to evenly spray the essence into the shredded tobacco or shredded stalks in a certain proportion. The uniformity of flavoring directly affects the quality of cigarettes. Consistency of mass and its pumping qualities. At present, the flavoring uniformity of the cigarette factory’s shredded production line is generally monitored online through the flavoring accuracy index, but the flavoring accuracy is more to measure the matching of shredded tobacco and flavoring materials in the flavoring process. The uniformity of actual aromatization cannot be accurately...

AI Technical Summary

Problems solved by technology

[0007] The above existing methods for detecting the flavoring uniformity of shredded tobacco are mainly detected through indirect means, and the shortcomings of existing methods are: the detection process of some methods is complicated to operate, and the quality requirements for detection instruments and detection personnel are relatively high. It is only suitable for laboratory research and analysis, and cannot be popularized and applied in actual production; some methods are affected by the production environment conditions, and the test results are not intuitive and accurate enough; waste

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