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Purge and trap method for aroma components in tobacco and tobacco products

A fragrance component, purging and trapping technology, applied in the direction of material separation, material analysis, measuring devices, etc., can solve the problems of low steam distillation efficiency, large amount of organic solvent usage, long time-consuming purging process, etc., and achieve high sensitivity , No pollution in operation, easy and fast operation

Active Publication Date: 2018-11-20
CHINA TOBACCO JIANGSU INDAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solvent extraction requires the use of organic reagents, and usually requires pre-dried or crushed tobacco. During the hot air drying or crushing process, the aroma components are also continuously lost; steam distillation is inefficient and cumbersome to operate; liquid phase microextraction requires to organic reagents, and needs to be concentrated; the extraction efficiency of simultaneous distillation and extraction is high, but there are disadvantages such as time-consuming, laborious, and large amount of organic solvents used
[0004] Chinese patent document CN201410336052.6 discloses a method for extracting tobacco aroma components and its application, and provides a method for ultrasonic crushing to assist in extracting tobacco aroma components, but this method still uses organic reagents as the extraction solvent
Chinese patent document CN201510117465.X discloses a method for extracting volatile and semi-volatile aroma components in tobacco. This document uses a purge and trap method, but this method is only suitable for volatile and semi-volatile components, and the purging process is time-consuming and expensive. After trapping, organic solvents need to be added for elution

Method used

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  • Purge and trap method for aroma components in tobacco and tobacco products
  • Purge and trap method for aroma components in tobacco and tobacco products
  • Purge and trap method for aroma components in tobacco and tobacco products

Examples

Experimental program
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Effect test

Embodiment 1

[0046] A purge and trap method for aroma components in tobacco and tobacco products, comprising the following steps:

[0047] (1) Tobacco and tobacco products are processed into shredded tobacco of 1mm×10mm;

[0048] (2) Take shredded tobacco and mix it with water at a weight-to-volume ratio of 1:18 to obtain an aqueous solution;

[0049] (3) Ultrasonic water bath extraction is performed on the aqueous solution, the ultrasonic power is 1400W, the ultrasonic temperature is 80°C, and the time is 60min, to obtain the extract;

[0050] (4) draw 20ml extract and place in the purging bottle, add the sodium chloride that is 25% by weight;

[0051] (5) The purge gas passes through the sample in the purge bottle, and the aroma components are volatilized from the water phase with the purge gas by bubbling. The purge temperature is 80°C, the flow rate of the purge gas is 20ml / min, and the purge time is 25min. ;

[0052] (6) Aroma components are trapped when they pass through the trap,...

Embodiment 2

[0059] A purge-and-trap method for aroma components in tobacco and tobacco products, wherein the purging temperature in step (5) is 60°C. Others are with embodiment 1.

[0060] The name, quantified ion and content of the aroma components obtained in this embodiment are shown in Table 2, and the total ion current chromatogram of the aroma components is shown in figure 2 .

Embodiment 3

[0062] A purge-and-trap method for aroma components in tobacco and tobacco products, wherein the ultrasonic temperature in step (3) is 72°C. Others are with embodiment 1.

[0063] In this embodiment, a total of 19 quantifiable aroma components were detected, indicating that within a certain temperature range, when the ultrasonic temperature is low, the extraction efficiency is low.

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Abstract

The invention discloses a purge and trap method for aroma components in tobacco and tobacco products. A sample is subjected to ultrasonic water bath extraction to obtain an extract liquid, and then issubjected to purge and trap under a salting out condition. The method specifically includes the following steps: performing shearing treatment on a tobacco treatment; performing high temperature ultrasonic extraction in water; adding salt to the extract liquid; performing the purge and trap; performing desorption on the aroma components through thermal analysis; and detecting by utilizing a gas chromatography / mass spectrometer, thereby achieving qualitative and quantitative analysis of the aroma components. Compared with the prior art, in the purge and trap method of the invention, organic reagents are not utilized in an extraction process of the aroma components, thus preventing loss of a part of the aroma components and environmental pollution. The purge and trap method achieves fast and accurate analysis of a plurality of aroma components, and has the advantages of multiple detection components, high sensitivity, accurate quantification, simple and rapid operation, and the like.

Description

technical field [0001] The invention designs a method for separating and extracting aroma components in tobacco, and in particular relates to a purging and trapping method for aroma components in tobacco and tobacco products. Background technique [0002] Aroma components in tobacco are important factors affecting product quality, and aroma components in tobacco are an important part of the flavor of cigarette products. There are hundreds of aroma components that are characteristic of tobacco aroma, and the content of these aroma components is usually trace or even trace level. Therefore, the research on rapid and accurate analysis of aroma components is very important. [0003] At present, the commonly used analysis methods of aroma components are solvent extraction, steam distillation, liquid phase microextraction, simultaneous distillation extraction and other methods. Solvent extraction requires the use of organic reagents, and usually requires pre-dried or crushed toba...

Claims

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Application Information

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IPC IPC(8): G01N30/88G01N30/06
CPCG01N30/06G01N30/88G01N2030/062
Inventor 刘琪刘献军庄亚东
Owner CHINA TOBACCO JIANGSU INDAL
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