Tobacco strip aqueous extract absorbance determining and alcoholization process determining method

Abstract

The invention discloses a tobacco strip aqueous extract absorbance determining and alcoholization process determining method. The method comprises the concrete steps that (1) a tobacco strip is sampled in a five-point sampling method, and crushing is carried out at low temperature; (2) certain weight of the sample is weighed and placed in a 50ml Erlenmeyer flask, certain volume of pure water is added, extraction is carried out for 30 min, and filtering is carried out; (3) colorimetric determination is carried out in the wavelength of 355nm by taking the pure water as a blank sample; and (4) the alcoholization process of the aqueous extract is substituted into a formula, Y=-7.7913X2+45.024X+4.5655, to calculate a tobacco strip sensing quality simulated value. The method is simple and rapidin operation and high in stability, the optimal tobacco strip alcoholization period can be determined accurately, and the color darkness of the tobacco strip can be represented quantitatively. The tobacco strip alcoholization period can be mastered rapidly needless of complex operation or smoking for evaluation, and the working efficiency is improved. The method relates to fewer instruments, and the detection cost is lower.

Description

technical field [0001] The invention relates to the technical field of alcoholization of tobacco leaves, in particular to a method for detecting the absorbance value of tobacco water extract and judging the alcoholization quality. Background technique [0002] Tobacco leaf is the main raw material of the cigarette industry, and its quality determines the quality of cigarette products. Tobacco leaf raw materials harvested in that year have disadvantages such as heavy green miscellaneous gas and insufficient mellow taste, and are not suitable for direct use in cigarette production. They must be alcoholized to eliminate green miscellaneous gas and reduce its irritation. The alcoholization quality of tobacco leaves directly affects the quality and quality stability of cigarette products, and is crucial to the healthy development of cigarette enterprises. For a long time, the alcoholization quality of tobacco leaves has been mainly determined by sensory evaluation. Although the ...

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Problems solved by technology

Patent application number 200810073664.5 discloses a method for judging the moderate fermentation of black tea by the colorimetric value of theaflavins, but tobacco leaves do not contain this component, and the principles of black tea fermentation and tobacco leaf alcoholization are not consistent, so it cannot be used to judge the quality of tobacco alcoholization

Patent application number 201710034735.X discloses a quantitative detection method for the color of traditional Chinese medicine injections. It can be judged by the color whether the traditional Chinese medicine injections have deteriorated. Traditional Chinese medicine preparations do not need to be alcoholized, and their quality will gradually decline over time, while the first-cured tobacco leaves need to be alcoholized to improve tobacco leaves. Use value, the quality of tobacco leaves will decline only if the aging period is too long. There is a big gap between the use of traditional Chinese medicine and tobacco leaves. Tobacco leaves are mainly used for burning and smoking. Simple comparison of color depth cannot reflect the sensory evaluation and smoking quality of tobacco leaves.

The scientific paper "The relationship between the change of Maillard reaction products and the sensory quality during the natural aging process of flue-cured tobacco" (China Tobacco Science, 2015, 36(4):85-90.) only explored the changes in the content of Maillard reaction products during the aging process And its relationship with the sensory quality, did not use the reaction product to judge the quality of alcoholization

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