Preparation method for aired tobacco extracts and essential oil

A technology for air-drying tobacco and extracts, which is applied in the field of preparation of air-drying tobacco extracts and essential oils, can solve the problems of insufficient selectivity, low oil yield of supercritical fluid extraction, etc., to improve sensory comfort, comprehensive utilization rate, Controllable Effects

Inactive Publication Date: 2012-06-13
CHINA TOBACCO ANHUI IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the deficiencies of the prior art, and focuses on solving the problems of low oil extraction rate and insufficient selectivity of air-dried tobacco supercritical fluid

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Take 50g of burley tobacco with a moisture content of 5% and a pH value of 4, fill it in a 100mL extraction kettle, and seal it after compaction. Introduce carbon dioxide, pressurize the high-pressure pump to 100 bar, and extract statically for 30 minutes and dynamically extract for 30 minutes at 30°C. Wash the extract with distilled water in the first-stage separation tank, and the water-soluble components are eluted from the carbon dioxide supercritical fluid; in the second-level separation tank, the eluted carbon dioxide is washed with an ethanol aqueous solution with a mass concentration of 60%, The ethanol washing solution in the secondary separation kettle is clear and transparent, has obvious characteristic aroma of Burley tobacco, and has obvious flavoring effect.

Embodiment 2

[0020] Take 500g of burley tobacco with a moisture content of 30% and a pH value of 8, fill it in a 1L extraction kettle, and seal it after compaction. Introduce carbon dioxide, pressurize the high-pressure pump to 600bar, and extract statically for 120min and dynamically extract for 180min at 80°C. Wash the extract with malic acid, citric acid or tartaric acid aqueous solution in the primary separation tank, elute the water-soluble components from the carbon dioxide supercritical fluid, and wash with ethanol aqueous solution with a mass concentration of 95% in the secondary separation tank The stripped carbon dioxide. The extract flowing out from the secondary separation tank was emulsified and dispersed with 5 mL of a 1:2 mixture of triacetin and ethanol, and then used as cigarette essence. The extract is yellow in color, clear in appearance, has the characteristics of Burley tobacco, and has a sweet smell. After flavoring, it can obviously enhance the characteristic aroma ...

Embodiment 3

[0022] Take 200g of burley tobacco with a moisture content of 20% and a pH value of 6, fill it in a 400mL extraction kettle, and seal it after compaction. Introduce carbon dioxide, pressurize the high-pressure pump to 350bar, and extract statically for 60min at 50°C, and extract dynamically for 1000min. Wash the extract with distilled water in the first-stage separation tank, and the water-soluble components are eluted from the carbon dioxide supercritical fluid; in the second-level separation tank, the eluted carbon dioxide is washed with an ethanol aqueous solution with a mass concentration of 85%, The ethanol washing solution in the secondary separation kettle is clear and transparent, has obvious characteristic aroma of Burley tobacco, and has obvious flavoring effect.

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PUM

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Abstract

The invention discloses a preparation method for aired tobacco extracts and essential oil. The preparation method includes extracting aroma components such as ester, wax compounds and the like in aired tobaccos by the aid of carbon dioxide supercritical fluid; adopting water as eluent to dynamically wash supercritical fluid extracts in a primary separating kettle so as to extract water soluble components; eluting the supercritical fluid extracts via ethanol in a secondary separating kettle to obtain alcohol soluble aired tobacco essential oil; and utilizing alcohol insoluble substances as cigarette aroma additives by an emulsion dispersion method. The preparation method can remarkably increase aired tobacco aroma component extracting efficiency and selectivity, aired tobacco aromatic characteristics of the extracts are remarkable, offensive and irritancy can be reduced, and sensory comfort can be improved.

Description

Technical field: [0001] The invention relates to a method for preparing an extract of air-dried tobacco and essential oil, in particular to extracting air-dried tobacco with supercritical fluid, improving the extraction efficiency and selectivity, improving the uniformity of release of air-dried tobacco characteristics during the suction process, and reducing impurities. Eliminate gas and irritation, improve sensory comfort. Background technique: [0002] Tobacco extract is a compound extracted and separated from tobacco, and it is an important class of cigarette additives added during the cigarette flavoring process. Due to the good coordination and compatibility between tobacco extract and cigarette smoke, it is considered to be one of the most ideal additives for cigarettes and plays an important role in the production of cigarettes, especially low-tar cigarettes. At present, methods such as solvent extraction and steam distillation are usually used for tobacco extractio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A24B15/24A24B3/12
Inventor 徐迎波葛少林佘世科朱栋梁田振峰陈开波张尚明王文斌
Owner CHINA TOBACCO ANHUI IND CO LTD
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