GC-IMS (Gas Chromatography-IMS)-based evaluation method for tobacco aroma from different producing areas

Abstract

The invention discloses a GC-IMS (Gas Chromatography-IMS)-based evaluation method for aroma of tobaccos from different producing areas, which comprises the following steps: S1, collecting and treatingtobaccos from different standard producing areas to obtain a standard reference substance; S2, detecting volatile substances of the standard reference substance through a GC-IMS to obtain reference data; S3, comparing and analyzing the reference data, and formulating a fingerprint spectrum corresponding to the tobacco aroma substances in the standard producing area to obtain a standard control fingerprint spectrum; s4, detecting volatile substances of the to-be-detected sample through the GC-IMS to obtain sample data; and S5, carrying out PCA analysis partitioning on the sample data, and carrying out similarity calculation (with a standard control fingerprint) to determine the origin of the sample. According to the method, chemical substances influencing the tobacco aroma are detected through an instrument, the production places of different tobacco samples are confirmed and evaluated, and high cost and instability caused by manual smoking evaluation are avoided.

Description

technical field [0001] The invention relates to the technical field of tobacco component analysis, in particular to a GC-IMS-based method for evaluating the aroma of tobacco from different origins. Background technique [0002] The intrinsic quality of tobacco leaves and the taste comfort of cigarettes are greatly affected by aroma substances. The study of aroma substances in tobacco leaves is helpful to reveal the aroma style characteristics of tobacco leaves and improve the taste comfort of cigarettes. Because there are many chemical substances in tobacco leaves, the substances that affect the aroma quality of tobacco leaves are very rich, and the contents of each substance are different. At present, the research on this aspect is not perfect. The evaluation of the aroma quality in tobacco leaves has always been done by professional smokers through sensory evaluation of the smoke produced by the burning of tobacco leaves. This traditional evaluation method is greatly affe...

AI Technical Summary

Problems solved by technology

This traditional evaluation method is greatly affected by individual subjective factors, and consumes a lot of manpower, material resources and financial resources.

Moreover, cigarettes require that the aroma quality of the tobacco leaf raw materials must have a certain stability, and it is difficult for smokers to meet such high requirements only by personal experience.

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