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Method for pretreatment on aroma components of spice extract for tobacco

A technology for tobacco flavors and aroma components, which is applied in the field of pretreatment for the analysis of aroma components of extract-type tobacco flavors, can solve the problems of few effective chromatographic peaks, many separation steps, and difficulty in sampling, and achieves improved test efficiency and enrichment efficiency. High, easy-to-use effects

Inactive Publication Date: 2018-02-09
HUBEI CHINA TOBACCO IND
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although these pretreatment methods can deal with extracts of tobacco flavors to analyze the volatile and semi-volatile components, there are still some obvious shortcomings and deficiencies, such as many separation steps, long analysis period, time-consuming and laborious, and heavy Poor reproducibility, low processing efficiency, etc. The cleaning and extraction of the simultaneous distillation extraction device takes a long time. It generally takes more than 5 hours from the start of operation to the completion of the analysis of samples, so it is not suitable for the analysis of a large number of samples.
At the same time, most of the extract-type tobacco flavors are relatively viscous and have poor fluidity. There are problems such as difficult sampling and easy emulsification, which leads to low solvent extraction efficiency and few effective chromatographic peaks, which cannot fully reflect the intrinsic quality of the flavor.

Method used

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  • Method for pretreatment on aroma components of spice extract for tobacco
  • Method for pretreatment on aroma components of spice extract for tobacco
  • Method for pretreatment on aroma components of spice extract for tobacco

Examples

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Embodiment 1

[0022] Embodiment 1, a pretreatment method for analysis of aroma phase components of sweet-scented osmanthus extract for cigarettes, the specific steps are as follows: take a 5mL syringe, pull out the piston core rod, put the sweet-scented osmanthus extract sample into the syringe, and then put it into the piston Squeeze the mandrel into a Erlenmeyer flask placed on an electronic balance, weigh 0.5506g, add 3mL of ether, and sonicate at 150Hz for 15min to obtain a diluted sample; take a manual SPME device, 100μm polydimethylsiloxane Alkane extraction head, aged at 200-280°C for 20-40min; put the diluted sweet-scented osmanthus extract sample in a headspace bottle, heat in a water bath at 60°C, extract for 5min, and then insert the extraction head into a gas chromatograph for sample injection desorb for 8 minutes; use gas chromatography-mass spectrometry to analyze the components adsorbed by the extraction head, use NIST2005 and Wiley7 spectral libraries to search and qualitativ...

Embodiment 2

[0023] Example 2: A pretreatment method for analyzing the aroma components of maple maple extract for tobacco, the specific steps are as follows: take a 5mL syringe, pull out the piston core rod, put the maple maple extract sample into the syringe, and refill it Insert the piston core rod, squeeze it into the Erlenmeyer flask placed on the electronic balance, weigh 0.6022g, add 5mL ethyl acetate, and ultrasonicate at 150Hz for 20min to obtain the diluted sample; take a manual SPME device, 100μm Methylsiloxane extraction head, aged according to the requirements of use; put the diluted maple maple extract sample in a headspace bottle, heat it in a water bath at 65°C, extract for 8 minutes, and then insert the extraction head into the gas chromatograph inlet for desorption 10min; use gas chromatography-mass spectrometry to analyze the components adsorbed by the extraction head, use NIST2005 and Wiley7 spectral libraries to search and qualitatively analyze, and the obtained GC / MS c...

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Abstract

The invention provides a method for pretreatment on aroma components of spice extract for a tobacco. The method comprises taking spice sample extract for a tobacco through a syringe, extruding the spice sample extract into a container, adding a weak polar solvent into the container, carrying out ultrasonic dilution, taking a manual solid-phase microextraction device with a 100m polydimethylsiloxane fiber extraction head, carrying out aging, heating the dilute extract sample in a head-space bottle in a water bath, carrying out manual extraction through the manual solid-phase microextraction device for 1-10min, inserting the extraction head into a sample inlet of a gas phase chromatography-mass spectrometer, carrying out desorption for 5-10min and analyzing components adsorbed on the extraction head through the gas phase chromatography-mass spectrometer. The method has the advantages of low toxicity, easy operation, low cost and high enrichment efficiency and can effectively enrich morevolatile and semi-volatile components with lower content and lower detection sensitivity in the spice extract for a tobacco. The treated extract can produce more chromatographic peaks through GC / MS sothat more components are identified.

Description

technical field [0001] The invention belongs to the field of analysis of flavorings for tobacco, and in particular relates to a pretreatment method for analyzing the aroma components of flavorings for tobacco extracts. Background technique [0002] Extract spices are generally viscous or paste spices obtained by extracting natural plants with low-polarity solvents, filtering and concentrating. Commonly used tobacco extracts include maple extract, Peru extract, osmanthus extract, sour plum Extracts, etc., are added to cigarettes to harmonize with the aroma of cigarettes, which can improve the smell, improve the quality of tobacco, ease the sensory characteristics of oral mucosa, inhibit the stimulation of acridity and make the smoke soft and rich. [0003] For the analysis of volatile and semi-volatile components in tobacco flavors, the method of gas chromatography-mass spectrometry (GC-MS) is commonly used. Gas chromatography-mass spectrometry (GC-MS) is a method that can s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/06G01N30/08
CPCG01N30/06G01N30/08G01N2030/062
Inventor 肜霖董爱君熊国玺
Owner HUBEI CHINA TOBACCO IND