Method for evaluating tobacco alcoholization quality through ultraviolet spectrum

Abstract

The invention belongs to the technical field of spectral analysis, and discloses a method for evaluating tobacco alcoholization quality through ultraviolet spectrum. The method comprises the following steps: extracting different polarity components of tobacco by adopting four different solvent of petroleum ether, chloroform, absolute ethyl alcohol and water, scientifically establishing a multiple regression model of ultraviolet spectrum peak area and sensory quality of the four solvent parts according to ultraviolet spectrum difference caused by different tobacco alcoholization quality, and evaluating the sensory quality of the tobacco by utilizing the multiple regression model, wherein components extracted from the four solvent parts comprise tobacco liposoluble components and water-soluble components, and the tobacco alcoholization quality can be evaluated quickly, conveniently, fast and macroscopically. The method for evaluating tobacco alcoholization quality through ultraviolet spectrum has relatively good stability and reproducibility.

Description

technical field [0001] The invention belongs to the technical field of spectral analysis, and relates to a method for evaluating the alcoholization quality of tobacco leaves, and more specifically, to a method for evaluating the alcoholization quality of tobacco leaves through ultraviolet spectroscopy. Background technique [0002] The cigarette industry refers to the dry tobacco leaves that have been threshed, rebaked and unfermented as new tobacco. New cigarettes are not suitable for smoking, let alone be used directly for industrial production of cigarettes, and must be fermented and alcoholized. During this process, the green miscellaneous gas and irritation of the tobacco leaves will be greatly reduced, the aroma will be revealed, the taste will be mellow, and the color will be even and deepened. However, as the storage time continues to prolong, the quality of the tobacco leaves will develop in the direction of deterioration, the color of the tobacco leaves is too da...

AI Technical Summary

Problems solved by technology

[0004] At present, chemical composition evaluation and sensory evaluation are still effective methods for evaluating the quality of alcoholization of tobacco leaves, but chemical composition evaluation has a large workload, long cycle, high cost, and large amount of data, which makes the specific index values ​​vague; sensory evaluation Smoking is the most direct way to evaluate the quality of tobacco leaves, but it requires personnel with rich experience in smoking evaluation, and the results of subjective judgments are often easily affected by human factors, and the cost of organizing personnel to evaluate smoking is also high

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