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Method for measuring fragrance quality of tobacco and products thereof

A method of determination and technology of aroma substances, applied in the field of determination of tobacco quality, to achieve the effect of simplifying the calculation process

Active Publication Date: 2009-03-25
HONGYUN HONGHE TOBACCO (GRP) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, there is still no relatively perfect measuring method

Method used

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  • Method for measuring fragrance quality of tobacco and products thereof
  • Method for measuring fragrance quality of tobacco and products thereof
  • Method for measuring fragrance quality of tobacco and products thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] ——Sample processing process

[0026] After roasting the shredded tobacco at (40±1)°C for 4 hours, crush it with a pulverizer, pass through a 40-mesh sieve, and balance the obtained tobacco powder in a balance box at a temperature of 22°C and a humidity of 60% for 24 hours. 25.0 g of tobacco powder samples were put into a simultaneous distillation and extraction device, and dichloromethane was used as a solvent to continuously and dynamically extract tobacco shreds for 2 hours. After the obtained extract was dried over anhydrous sodium sulfate, it was concentrated to 1.0 mL in a rotary evaporator. Add 50 μl, 0.1mol / L benzyl acetate solution in absolute ethanol, shake well, and analyze it with Agilent 6890N / 5973N GC / MS analyzer.

[0027] Instruments and experimental conditions used:

[0028] Reagents: dichloromethane (AR, Xilong Chemical), anhydrous sodium sulfate (AR, Tianjin Kemiou Company), absolute ethanol (chromatographically pure, Dima Company), benzyl acetate (chr...

Embodiment 2

[0032] - Calculation of compound content

[0033] Calculate the relative content of each substance by formula 1:

[0034] Ce = β × Cr × At Ar - - - ( 1 )

[0035] In the formula, Ce—the relative correction content of the target component; β—the correction coefficient, the value is 7.2; Cr—the content of the internal standard; At—the peak area of ​​the target component; Ar—the peak area of ​​the internal standard.

Embodiment 3

[0037] ——Compilation of KR index

[0038] Bring the value calculated by formula 1 into formula 2, and the obtained value is the KR value

[0039] KR value = product of positive correlation factors / product of negative correlation factors (2)

[0040] Positively correlated factors include: 3-hydroxy-2-butanone, hexanal, bread ketone, furfural, furfuryl alcohol, 2-cyclopentene-1,4-dione, 1-(2-furyl)-ethanone, butane Lactone, Benzaldehyde, 5-Methylfurfural, 6-Methyl-5-Hepten-2-one, Benzyl Alcohol, Linalool, Phenylethyl Ethanol, 2,6-Nadienal, Zanal, 2 -Methoxy-4-vinylphenol, BETA-Damascone, BETA-Dihydrodamascone, Geranylacetone, BETA-Ionone, Dihydroactinolactone, Macrostigmatrienone A, Macrobean 29 substances including trienone B, macrostigmatrienone C, macrostigmatrienone D, 3-oxo-ALPHA-ionol, methyl myristate, and naringone.

[0041] Negative correlators include: pyridine, 3-methyl-2-butenal, phenol, phenylacetaldehyde, 2-methylphenol, 2-methoxy-phenol, indole, solanone, deh...

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Abstract

The invention discloses a method for mensurating the aroma quality of tobacco and a tobacco product. The method comprises the following steps: firstly, through an approach for producing an aroma substance or a degradation rule of a precursor substance, total or partial substances are selected from basic aroma substances as representative characteristic substances; secondly, an aroma-causing composition in tobacco leaf is mensurated and analyzed by simultaneously adopting a distillation and extraction-gas chromatography / mass spectrometry method; and finally, a response factor of the substances to the instrument obtained through analysis and detection is set as 1; a calculation factor KR value of a sample is calculated through directly applying data obtained by the instrument; and the aroma quality of the sampler is intuitively characterized. The method provides a convenient and effective mensuration method for controlling tobacco quality.

Description

technical field [0001] The invention relates to a method for measuring tobacco quality. In particular, it relates to a method for characterizing and assisting in identifying the aroma quality of tobacco leaves and smoke starting from the key aroma components of tobacco leaves. Background technique [0002] Since the 1930s, tobacco workers at home and abroad have devoted themselves to the analysis and research of tobacco chemical components, trying to infer the quality of tobacco from several chemical components of tobacco. In 1936, the German tobacco chemist Bruckner classified the components of tobacco leaves according to the taste, and proposed the Bruckner quality index, which is quite consistent with the evaluation of the smoke of many tobacco leaf products. In 1948, C.Pyriki simplified Brückner's calculation formula and proposed the Pyriki quality index. Soviet tobacco chemist Shi Muke proposed in 1953 that the ratio of soluble sugar to protein content was used as the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02G01N27/64G01N30/06G01N1/34
Inventor 武怡曾晓鹰王保兴李庆华王玉侯英李祖红夏建军段焰青王坚朱保昆何华周春梅
Owner HONGYUN HONGHE TOBACCO (GRP) CO LTD
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