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Method for preparing high-fragrance tobacco extract

A tobacco extract and aroma technology, which is applied in the fields of tobacco, tobacco preparation, and tobacco treatment, can solve the problems of low-tar cigarettes with insignificant aroma supplementation effect, weak product aroma, and high extraction temperature, and is suitable for industrial production and application. The effect of rich tobacco aroma and simple preparation process

Active Publication Date: 2017-01-11
ZHENGZHOU TOBACCO RES INST OF CNTC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the currently commercially available tobacco extracts are prepared by ethanol continuous extraction, which has two major disadvantages: ① part of the natural aroma is lost during the extraction process, and the aroma of the product is weak; ② in addition to the aroma components in the product, there are also pectin, Proteins and hemicellulose substances, these substances will be cracked during the smoking process of cigarettes to produce some harmful components, and at the same time increase the irritation and miscellaneous gas of smoking, and affect the sensory quality (Song Peng. Microbial fermentation reduces harmful components in cigarette smoke and improving the quality of cigarettes [D]. Xi'an: Northwest University, 2008.; Chi Jingji, et al. Correlation analysis between the main chemical indicators of tobacco leaves and their smoking quality [J]. Journal of Agricultural Sciences of Yanbian University, 2006, 28 (3):208-210.)
Compared with the single solvent extraction method, this method extracts with high-concentration ethanol under acidic conditions, which can effectively dissolve the acidic aroma components in tobacco, but will lose part of the alkaline aroma components and nicotine, and the extraction temperature is higher. It will cause damage to heat-sensitive and oxidizable substances in tobacco, and the obtained tobacco extract has not been finely separated, contains more macromolecules, high-boiling and non-volatile substances, and the content of nicotine is low, so it has no significant effect on flavoring low-tar cigarettes

Method used

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  • Method for preparing high-fragrance tobacco extract
  • Method for preparing high-fragrance tobacco extract
  • Method for preparing high-fragrance tobacco extract

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The preparation method of the high-aroma tobacco extract in the present embodiment comprises the following steps:

[0024] 1) Weigh 1 kg of flue-cured tobacco raw material, put the raw material in a SY-III-A experimental tobacco processor, evenly spray 6% propylene glycol of the raw material mass, place it in a sealed place for 11 hours to fully absorb the tobacco leaves, and then heat it to 90°C for baking 1.5h;

[0025] 2) Grind the roasted raw materials to 100 mesh, and add 95% ethanol for extraction, the mass ratio of solid to liquid is 1:9, the extraction temperature is -20°C, and the time is 12 hours; after the extraction, filter with 400 mesh filter cloth Extract the extract, add solvent to the filter residue and extract again, and combine the two extracts;

[0026] 3) The extract is separated with a 5kD ultrafiltration membrane, the permeate is collected and distilled under reduced pressure until there is no low boiling point solvent to obtain a concentrate;

...

Embodiment 2

[0029] The preparation method of the high-aroma tobacco extract in the present embodiment comprises the following steps:

[0030] 1) Weigh the flue-cured tobacco raw material, evenly spray 18% propylene glycol on the flue-cured tobacco raw material, seal and place for 9 hours to fully absorb the tobacco leaves, and then heat to 130 ° C for 0.5 h;

[0031] 2) Grind the roasted raw materials to 80 mesh, add absolute ethanol for extraction, the mass ratio of solid to liquid is 1:6, the extraction temperature is 0°C, and the extraction time is 10 hours; Extract the liquid, add solvent to the filter residue and extract again, and combine the two extracts;

[0032] 3) The extract is separated with a 10kD ultrafiltration membrane, the permeate is collected and distilled under reduced pressure until there is no low boiling point solvent to obtain a concentrate;

[0033] 4) The above-mentioned concentrate is subjected to secondary separation by molecular distillation, distilled at roo...

Embodiment 3

[0035] The preparation method of the high-aroma tobacco extract in the present embodiment comprises the following steps:

[0036] 1) Weigh 1 kg of flue-cured tobacco raw material, place the raw material in a SY-III-A experimental tobacco processor, evenly spray 20% propylene glycol of the raw material mass, place it in a sealed place for 7 hours to fully absorb the tobacco leaves, and then heat it to 140°C for baking 0.5h;

[0037] 2) Grind the baked raw materials to 80 mesh, add absolute ethanol for extraction, the mass ratio of solid to liquid is 1:8, the extraction temperature is 30°C, and the extraction time is 6 hours; Extract the liquid, add solvent to the filter residue and extract again, and combine the two extracts;

[0038] 3) The extract is separated with an 8kD ultrafiltration membrane, the permeate is collected and distilled under reduced pressure until there is no low boiling point solvent to obtain a concentrate;

[0039] 4) Secondary separation of the above-m...

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Abstract

The invention discloses a method for preparing a high-fragrance tobacco extract and belongs to the technical field of a tobacco additive. The method comprises the steps of 1, adding propylene glycol into tobacco raw materials, and then standing and baking the raw materials; 2, crushing, adding solvent extraction liquid into crushed materials; 3, filtrating extraction liquid with an ultra-filtration membrane to prepare permeate liquid, and decompressing and distilling the permeate liquid to prepare a condensate; and 4, secondarily separating the condensate by a molecular distillation method, and collecting a light component as the high-fragrance tobacco extract. In the preparing method, tobacco raw materials are in advance treated by baking so that Maillard reaction presents between the tobacco reducing sugar and the nitrogen-containing compound, generate pyrone and furanone substances are prepared and baking fragrance is increased; propylene glycol is added into the tobacco so that bad flavor caused by charred tobacco at high baking temperature can be prevented; macro-molecular substances and high boiling-point non-volatile substances can be effectively removed by the membrane separation-molecular distillation double separation process, and specific aroma components enriched in the tobacco are separated.

Description

technical field [0001] The invention relates to a method for preparing a high-aroma tobacco extract, belonging to the technical field of tobacco additives. Background technique [0002] In recent years, with the effective implementation of the Framework Convention on Tobacco Control, the gradual expansion of the scope of smoking bans in public places around the world, and consumers' increasing concern for their own health, the research and development of low-tar cigarette products has become increasingly important. But at the same time, it is inevitable that the aroma and taste of cigarettes will decline, and adding flavor to cigarettes is an important method to improve the taste. [0003] Tobacco extract is extracted from tobacco and contains tobacco's original aroma-causing substances. Compared with other natural flavors, tobacco extract has better harmony with cigarettes, which can enhance the aroma of cigarettes and increase the sense of satisfaction. Prepare a high-aro...

Claims

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Application Information

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IPC IPC(8): A24B15/26A24B3/12
CPCA24B3/12A24B15/26
Inventor 张文娟徐秀娟霍现宽杨伟平毛健崔凯姬凌波何保江马骥屈展宗永立
Owner ZHENGZHOU TOBACCO RES INST OF CNTC
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