Quality evaluation model for natural ageing of redried strips and building method thereof

Abstract

The invention relates to a quality evaluation model for natural ageing of redried strips and a building method thereof and belongs to the technical field of tobacco processing and quality evaluation. The building method includes: according to factors influencing quality changes during natural ageing of tobacco, determining a major quality evaluation index, performing screening by means of quantitative characteristic analysis, factor analysis, linear correlation and canonical correlation analysis to obtain quality evaluation indexes highly related to tobacco sensory evaluation quality, subjecting the quality evaluation indexes to factor analysis to obtain factor score coefficient matrixes, subjecting scores of common factors and the sensory evaluation quality to principal component regression to obtain a standard equation, substituting the score coefficient matrixes obtained by factor analysis, to the standard equation so as to obtain the equality evaluation model for the natural ageing of the redried strips. The method and the model are scientific and effective and good in stability, and index detection related is simple and fast and has small errors.

Description

technical field [0001] The invention belongs to the technical field of tobacco processing and quality evaluation, and in particular relates to a method for quality evaluation and model construction in the natural aging process of re-cured sliced ​​tobacco based on the statistical analysis of evaluation indicators in aspects such as physics, appearance, chemistry and biology. Background technique [0002] Tobacco is a special economic crop whose main purpose is smoking. The smoking quality of tobacco determines its use value and usability. The new tobacco harvested in the same year often has quality defects and cannot be directly used for the production of cigarettes. After rebaking, the first-time flue-cured tobacco needs 1 to 3 years of natural aging to cause a series of chemical or biochemical changes in the contents of the tobacco leaves. , in order to reduce some quality defects of the original tobacco, further highlight the aroma style, improve the aroma quality and ar...

AI Technical Summary

Problems solved by technology

Patent application number 200810197049.5 discloses a method for judging the quality of tobacco leaves in the process of natural aging. This invention uses the change of pH value to represent the change of tobacco leaf quality, but only one evaluation index is used to characterize the change of tobacco leaf aging quality. some deviation

In addition, during the natural aging process of re-cured sheet tobacco, the change in pH value is not very large, and due to the short interval between each sampling (sampling once every 3 months), it may cause the pH value detected by two sampling The range of change is even smaller than the error value between tests, which leads to deviations in the value calculated by the model

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