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A method for preparing flue-cured tobacco absolute by oil floating method and its application

A technology of flue-cured tobacco and floating oil, which is applied in the field of tobacco flavors and fragrances. It can solve the problems of not being able to extract the aroma components of tobacco to the greatest extent, high equipment requirements, and difficulty in application, and achieve the effect of rich variety, low cost, and full aroma

Active Publication Date: 2022-02-01
CHINA TOBACCO YUNAN NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This patent uses modern membrane treatment technology. Although the safety is guaranteed and no miscellaneous gas is introduced, the membrane treatment intercepts substances according to the molecular weight, and cannot extract the aroma components in tobacco to the greatest extent. high, expensive
[0005] Patent 200910006909.7 "Preparation method of wild sage cotyledon absolute oil" discloses a preparation method of wild perilla cotyledon absolute oil. The preparation method of wild perilla cotyledon absolute oil includes preparation of wild perilla cotyledon powder, organic solvent reflux extraction concentration, back dissolving Freezing suction filtration concentration, molecular distillation separation and purification, to obtain wild sage leaf absolute. The reason why this patent has the conditions for molecular distillation after extraction, concentration, and alcohol analysis is because the content of protein, pectin, sugar, etc. in wild perilla is extremely high. It only needs simple extraction and concentration treatment to clean it; however, this method is difficult to apply to flue-cured tobacco, which has high protein, pectin and sugar content

Method used

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  • A method for preparing flue-cured tobacco absolute by oil floating method and its application
  • A method for preparing flue-cured tobacco absolute by oil floating method and its application
  • A method for preparing flue-cured tobacco absolute by oil floating method and its application

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Embodiment 1

[0045] A method for preparing flue-cured tobacco absolute by floating oil method, comprising the steps of:

[0046] Step (1), extraction: Carry out two reflux extractions on the flue-cured tobacco leaves, the first time is to add 8 times the amount of 60% ethanol, and reflux extraction at 80°C for two hours; the second time is to use 6 times the amount of 60% ethanol , reflux extraction at 80°C for two hours; filter with 200-mesh gauze, and combine the extracts;

[0047] Step (2), concentration: Concentrate the extract obtained in step (1) at a temperature of 60°C to a density of 1.1g / cm 3 , to obtain a concentrated solution;

[0048] Step (3), refrigerating and stratifying: refrigerating the concentrated solution obtained in step (2) for stratification to obtain the upper oily substance and the lower water-soluble substance;

[0049] Step (4), secondary concentration, alcohol analysis and filtration: at a temperature of 60°C, vacuum-concentrate the upper oily substance obta...

Embodiment 2

[0055] A method for preparing flue-cured tobacco absolute by floating oil method, comprising the steps of:

[0056] Step (1), extraction: Carry out two reflux extractions on the flue-cured tobacco leaves, the first time is to add 10 times the amount of 90% ethanol, and reflux extraction at 100°C for 3 hours; the second time is to use 8 times the amount of 90% ethanol , reflux extraction at 100°C for 3 hours; filter with 500-mesh gauze, and combine the extracts;

[0057] Step (2), concentration: Concentrate the extract obtained in step (1) at a temperature of 70°C to a density of 1.2g / cm 3 , to obtain a concentrated solution;

[0058] Step (3), refrigerated stratification: refrigerate the concentrated solution obtained in step (2) at 8°C and let it stand for 24 hours for stratification to obtain the upper layer of oily substance and the lower layer of water-soluble substance;

[0059] Step (4), secondary concentration, alcohol analysis and filtration: at a temperature of 70°C...

Embodiment 3

[0070] A method for preparing flue-cured tobacco absolute by floating oil method, comprising the steps of:

[0071] Step (1), extraction: Carry out two reflux extractions on the flue-cured tobacco leaves, the first time is to add 8 times the amount of 60% ethanol, and reflux extraction at 80°C for 2.5 hours; the second time is to use 6 times the amount of 60% ethanol , reflux extraction at 80°C for 2.5 hours; filter with 200-mesh gauze, and combine the extracts;

[0072] Step (2), concentration: Concentrate the extract obtained in step (1) at a temperature of 60°C to a density of 1.1g / cm 3 , to obtain a concentrated solution;

[0073] Step (3), refrigerated stratification: refrigerate the concentrated solution obtained in step (2) at 5°C and let it stand for 18 hours for stratification to obtain the upper layer of oily substance and the lower layer of water-soluble substance;

[0074] Step (4), secondary concentration, alcohol analysis and filtration: at a temperature of 60°...

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Abstract

The invention relates to a method for preparing flue-cured tobacco absolute by an oil floating method and an application thereof, belonging to the technical field of flavors and fragrances for tobacco. The method comprises a series of processes of extraction, concentration, refrigerated stratification, secondary concentration, alcohol analysis, filtration, tertiary concentration and molecular distillation to obtain flue-cured tobacco absolute, and the flue-cured tobacco absolute is prepared into a flavoring module, which is applied to cigarettes. The present invention uses different concentrations of ethanol as the extractant and extraction agent, abandons the steps of membrane filtration and petroleum ether extraction in the traditional method, and uses the principle of oil-water separation to skillfully separate the oily substances and water-soluble substances in the flue-cured tobacco extract, Macromolecular water-soluble substances such as sugars and proteins are removed, and the main aroma components in flue-cured tobacco are retained to the greatest extent. The method is simple, safe, economical and has a high yield of net oil. When the obtained absolute oil is applied to cigarettes, the aroma of the flue-cured tobacco is rich, the aroma of the smoke is natural, rich and elegant, and the main aroma of the cigarette is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of flavors and fragrances for tobacco, and in particular relates to a method for preparing flue-cured tobacco absolute by an oil floating method and an application thereof. Background technique [0002] Molecular distillation technology is a new type of liquid-liquid separation technology that has developed rapidly in recent years. Because it is especially suitable for the separation and purification of high boiling point, heat-sensitive and easily oxidized materials, and has the advantages of high vacuum and low separation temperature, it has been widely used in food and medicine. It has significant advantages in the separation of natural products in the fields of daily chemicals, spices, etc., and can better enrich the characteristic aroma components of natural products. However, when molecular distillation technology is used to separate natural products, in a high vacuum and high temperature environment, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11B9/02A24B15/24A24B15/30
Inventor 常健徐世涛陈婉袁智王夸平徐重军杨培香孔宁川黄静陈媛王乃定张强
Owner CHINA TOBACCO YUNAN NEW MATERIAL