Method for identifying flue-cured tobacco aroma type
A technology of flue-cured tobacco and flavor type, which is applied in the field of identifying flue-cured tobacco flavor type, which can solve the problems that it is difficult to objectively evaluate the characteristics of flue-cured tobacco flavor type, and achieve the effect of accurate detection results
Active Publication Date: 2019-05-21
CHINA TOBACCO GUIZHOU IND +1
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Problems solved by technology
However, the aroma types of different flue-cured tobaccos are usually determined by sensory evaluation, and sensory evaluation is a subjective evaluation method, which is easily affected by factors such as the smoking environment and smokers, and it is difficult to objectively evaluate the aroma characteristics of flue-cured tobacco.
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[0067] Taking the classification and identification of three flavor types of flue-cured tobacco in a typical base unit in Guizhou as an example.
[0068] (1) Single-material tobacco rolling and sensory evaluation of typical flue-cured tobacco samples:
[0069] a) Sample preparation: A total of 62 samples of B2F (Shangju 2) and C3F (Zhongju 3) of the main base units of China Tobacco Guizhou were collected in 2015 and 2016. The tobacco stems were removed, and the flue-cured tobacco sample was evenly divided into 4 parts according to the quartering method, one of which was crushed and sieved for the detection of the content of aroma components. The other part was shredded and prepared as a single cigarette (rolling 20 pieces / each sample) for sensory quality evaluation and smoking. The basic information of the samples is shown in Table 1.
[0070] Table 1 Basic information of flue-cured tobacco samples
[0071]
[0072]
[0073] b) Sensory evaluation of typical samples: 7...
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The invention provides a method for identifying flue-cured tobacco aroma type, which comprises the following steps: distilling a to-be-detected flue-cured tobacco sample for extraction to obtain an extracting solution; determining the contents of the 30 aroma components in the extracting solution by a GC-MS method to obtain the contents of the 30 aroma components; performing 0-1 normalization processing on the contents of the 30 aroma components to obtain 30 characteristic parameter values; and taking the obtained 30 characteristic parameter values as characteristic parameters of a support vector machine model for calculation to obtain the aroma type of the flue-cured tobacco leaves. According to the method, the specific aroma components are selected, the penalty parameter in the support vector machine model is 0.05-0.15, and the kernel function parameter is 0.15-0.25, so that the method established by the invention can effectively identify the aroma types of the flue-cured tobacco leaves from different sources, and the detection result is accurate.
Description
technical field [0001] The invention relates to the technical field of flue-cured tobacco aroma identification, in particular to a method for identifying the aroma type of flue-cured tobacco. Background technique [0002] Flue-cured tobacco raw materials are an important basis for the stability of cigarette product quality and style. Flue-cured tobacco raw materials from different sources are affected by the growth environment and genetic factors, and have unique aroma types, which are generally divided into three types: strong aroma, middle aroma and light aroma. Different flavors of flue-cured tobacco are of great significance to the formation of the style of cigarette brands. During the process of cigarette processing and formulation, the style of cigarette products needs to be positioned according to consumers' preferences to form specific cigarette products. At present, according to the study of ecological regions, it is found that different flavor flue-cured tobaccos ...
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Inventor 许洪庆欧明毅吕大树张亚恒袁天军杨式华
Owner CHINA TOBACCO GUIZHOU IND