Tobacco shred perfuming uniformity evaluation method based on PCA ellipse area

Abstract

The invention relates to a tobacco shred perfuming uniformity evaluation method based on PCA ellipse area. The method comprises the following steps: preparing a reference sample, preparing a to-be-tested sample, performing solid-phase micro-extraction-gas chromatography-mass spectrometry, computing the PCA ellipse area and result analysis of the reference sample and the to-be-tested sample in a PCA score plot. The PCA ellipse area of the main component score plot is computed, and the size of the perfuming uniformity can be quantified through the average deviation, and then two groups of samples with uniform and non-uniform perfuming can be accurately distinguished, and the perfuming uniformity can be quantified through the average deviation, and the method has popularization and application values. By adopting solid-phase micro-extraction, the volatile and semi-volatile components in the essence an flavor and tobacco shred can be effectively measured; and a peak thereof is selected asa common mode peak to perform principle component analysis, and the result is more accurate.

Description

technical field [0001] The invention relates to a method for evaluating the flavoring uniformity of shredded tobacco, in particular to a method for evaluating the flavoring uniformity of shredded tobacco based on the PCA ellipse area. Background technique [0002] Cigarette formula has always been regarded as the core technology of cigarette companies, but adding flavors and fragrances to cigarettes is even more regarded as a key technology. In recent years, research on the application of fingerprints in the field of tobacco has made rapid progress, and there are more and more reports in this area. At present, there are many applications in tobacco quality monitoring, quality evaluation, and quality consistency. [0003] Quantitative characterization of cigarette flavoring uniformity has always been a difficult problem in cigarette technology. The industry has carried out a lot of work on evaluating cigarette flavoring uniformity. Perfume was used as a marker to evaluate th...

AI Technical Summary

Problems solved by technology

However, due to the complex chemical composition of tobacco flavors and fragrances, there are many types, and the flavor components added to cigarette shreds are the same, but the content is different, and the added flavor content is also less

Using one or several characteristic compounds as markers to evaluate the uniformity of flavoring is not only difficult to find markers, but also difficult to add markers in large-scale production, so it is impossible to obtain reasonable comprehensive evaluation results

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