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A method of directionally separating aroma substances from tobacco by utilizing supercritical extraction and molecule distillation and applications of the aroma substances

A technology for molecular distillation and aroma-inducing substances, applied in the field of tobacco, can solve the problems of inability to restore the aroma of tobacco leaves, the taste of reconstituted tobacco leaves, and insufficient taste, so as to enhance the sense of rejuvenation of the smoke, reduce the dryness of the smoke, and reduce the The effect of pollution

Inactive Publication Date: 2016-08-17
CHINA TOBACCO ZHEJIANG IND +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] In the prior art, the aroma-inducing substances obtained by supercritical extraction and molecular distillation technology cannot restore the aroma of tobacco leaves very well, so that the taste and mouthfeel of reconstituted tobacco leaves are insufficient.

Method used

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  • A method of directionally separating aroma substances from tobacco by utilizing supercritical extraction and molecule distillation and applications of the aroma substances
  • A method of directionally separating aroma substances from tobacco by utilizing supercritical extraction and molecule distillation and applications of the aroma substances
  • A method of directionally separating aroma substances from tobacco by utilizing supercritical extraction and molecule distillation and applications of the aroma substances

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] After crushing 8kg of tobacco raw material to 60 mesh, put it into the extraction kettle, the extraction pressure is 20MPa, the extraction temperature is 35°C, and the supercritical CO 2 The flow rate is 80kg / h, supercritical CO 2 The volume fraction of the entrainer propylene glycol is 5%, and the extraction time is 2 hours.

[0046] The extraction product enters the two-stage separation tank I and the separation tank II successively for two-stage separation. The pressure of the separation tank I is 5 MPa, the temperature of the separation tank I is 35 ° C, the pressure of the separation tank II is 4 MPa, and the temperature of the separation tank II is 35 ° C. 1050g of yellow mixed extract containing aroma substances.

[0047] Heat 1050 grams of yellow mixed extract to 60°C for melting, then carry out two stages of molecular distillation successively, the equipment pressure of the first stage molecular distillation is 200Pa, and the heating temperature of the first s...

Embodiment 2

[0051] After crushing 10kg of tobacco raw material to 80 mesh, put it into the extraction kettle, the extraction pressure is 25MPa, the extraction temperature is 40°C, and the supercritical CO 2 The flow rate is 120kg / h, supercritical CO 2 The volume fraction of the entrainer propylene glycol is 10%, and the extraction time is 3 hours.

[0052] The extraction product enters the two-stage separation tank I and the separation tank II successively for two-stage separation. The pressure of the separation tank I is 8 MPa, the temperature of the separation tank I is 40 ° C, the pressure of the separation tank II is 4 MPa, and the temperature of the separation tank II is 40 ° C. 1820 grams of yellow mixed extract containing aroma substances.

[0053] Heat 1820g of the yellow mixed extract to 60°C to melt, then carry out two stages of molecular distillation in sequence, the equipment pressure of the first stage molecular distillation is 400Pa, the heating temperature of the first sta...

Embodiment 3

[0057] After crushing 9kg of tobacco raw material to 80 mesh, put it into the extraction kettle, the extraction pressure is 25MPa, the extraction temperature is 40°C, and the supercritical CO 2 The flow rate is 120kg / h, supercritical CO 2 The volume fraction of the entrainer propylene glycol is 10%, and the extraction time is 3 hours.

[0058] The extraction product enters the two-stage separation tank I and the separation tank II successively for two-stage separation. The pressure of the separation tank I is 8 MPa, the temperature of the separation tank I is 40 ° C, the pressure of the separation tank II is 4 MPa, and the temperature of the separation tank II is 40 ° C. 1910g yellow mixed extract containing aromatizing substances.

[0059] Heat 1910g of yellow mixed extract to 60°C to melt, then carry out three-stage molecular distillation in sequence, the equipment pressure of the first-stage molecular distillation is 400Pa, the temperature of the first-stage molecular dist...

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Abstract

A method of directionally separating aroma substances from tobacco by utilizing supercritical extraction and molecule distillation and applications of the aroma substances are disclosed. The method includes 1) a step of extracting a tobacco raw material by utilizing supercritical CO2 and by adopting propylene glycol as an entrainer to obtain a mixed extract containing the aroma substances, and 2) a step of selectively separating the aroma substances from the mixed extract by utilizing molecule distillation, wherein the tobacco raw material is smashed to a size of 30-120 meshes and then is subjected to the supercritical extraction, and the supercritical CO2 contains 5-15% by volume of the entrainer propylene glycol during the supercritical extraction in the step 1). Through properly mixing third-grade light components obtained by the molecule distillation, and coating tobacco leaves with the obtained mixture, quality of the tobacco leaves is improved, the aroma gas amount is increased, fragrance is improved, supplementing natural tobacco fragrance is supplemented, dryness of tobacco gas is reduced, and a salivation promoting sense of the tobacco gas and the comfort level of cigarettes are improved.

Description

technical field [0001] The invention relates to the technical field of tobacco, in particular to a method and application for directional separation of aromatizing substances in tobacco by means of supercritical extraction and molecular distillation. Background technique [0002] In the process of harvesting and producing tobacco, about 25% of the leftovers such as waste tobacco powder cannot be used, and most of them are treated as garbage, which not only pollutes the environment, but also causes a great waste of natural resources. Aiming at the utilization of leftovers such as waste tobacco powder, reconstituted tobacco leaf methods have emerged both at home and abroad in recent years. Reconstituted tobacco leaves, also known as tobacco flakes, use waste tobacco stems, tobacco leaf fragments, tobacco powder, etc. Natural tobacco leaf thin slices with excellent forming properties are used as cigarette fillers and reused in cigarette production. [0003] During the process...

Claims

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Application Information

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IPC IPC(8): C11B9/02A24B3/12A24B15/24
CPCC11B9/022A24B3/12A24B15/241C11B9/025C11B9/027
Inventor 吴键廖付张立立李永生郝贤伟李石头帖金鑫项波卡刘化冰金慧清陶丰焦洋唐恒杰吴方杰边红燕
Owner CHINA TOBACCO ZHEJIANG IND
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