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A kind of method for reducing benzo[a]pyrene in mainstream cigarette smoke

A technology of cigarette mainstream smoke and benzo, which is applied in the direction of tobacco, smoke oil filter elements, applications, etc., to achieve the effect of large adsorption capacity, wide range of raw materials, and small gaps

Active Publication Date: 2020-09-01
CHINA TOBACCO JIANGSU INDAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Tobacco stems contain nicotine, solanesol, nicotinic acid, pectin, vegetable protein and other ingredients. Therefore, extracting the active ingredients in tobacco stems is an important way for their comprehensive utilization, and there is no use of tobacco stems to prepare tobacco filters. mouth material report

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A method for reducing benzo[a]pyrene in mainstream cigarette smoke, comprising the steps of:

[0023] Take 100g of tobacco stems, wash them with water, add 700mL of water, heat and extract at 50°C for half an hour, and filter out residues and other insolubles after cooling. After the obtained filtrate was heated to reflux for 2 hours, it was evaporated and concentrated by heating to obtain a concentrated extract of tobacco stems, and the density of the concentrated extract of tobacco stems was 1.05 g / mL.

[0024] In the autoclave, add 100mL of the above-mentioned tobacco stem concentrated extract, 150mL of water, add 10g of glucose and 2g of proline, add 20mL of propylene glycol, and stir and condense at 135°C for 2 hours under a pressure of 0.5bar. . The obtained modified particles were dried to obtain the filter additive. After adding the ternary cellulose acetate composite filter stick with the addition of 5 mg of the filter additive for each cigarette, the release ...

Embodiment 2

[0026] A method for reducing benzo[a]pyrene in mainstream cigarette smoke, comprising the steps of:

[0027] Take 100g of tobacco stems, wash them with water, add 500mL of water, heat and extract at 40°C for half an hour, and filter out residues and other insolubles after cooling. The obtained filtrate was heated and refluxed for 2 hours, then evaporated and concentrated by heating to obtain a concentrated extract of tobacco stems, and the density of the concentrated extract of tobacco stems was 1.08 g / mL.

[0028] In the autoclave, add 100mL of the concentrated tobacco stem extract, 150mL of water, 15g of glucose and 5g of glycine, and 10mL of propylene glycol. Stir and condense at 140°C for 2 hours under a pressure of 0.5bar. The obtained modified particles were dried to obtain the filter additive. After adding the ternary cellulose acetate composite filter stick with the addition of 10 mg filter additive per cigarette, the release of benzo[a]pyrene in the mainstream smoke w...

Embodiment 3

[0030] A method for reducing benzo[a]pyrene in mainstream cigarette smoke, comprising the steps of:

[0031] Take 100g of tobacco stems, wash them with water, add 800mL of water, heat and extract at 45°C for half an hour, and filter out residues and other insolubles after cooling. The obtained filtrate was heated and refluxed for 2 hours, then evaporated and concentrated by heating to obtain a concentrated extract of tobacco stems, and the density of the concentrated extract of tobacco stems was 1.1 g / mL.

[0032] In the autoclave, add 100mL of the concentrated tobacco stem extract, 150mL of water, 12g of glucose and 3g of proline, and 15mL of propylene glycol. Stir and condense at 135°C for 2 hours under a pressure of 0.5 bar. . The obtained modified particles were dried to obtain the filter additive. After adding the ternary cellulose acetate composite filter stick with the addition amount of 8mg filter additive per cigarette, the release of benzo[a]pyrene in the mainstream...

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PUM

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Abstract

The invention discloses a method for reducing benzo[a]pyrene in mainstream smoke of cigarettes. The method includes the steps that S01, water extraction is performed; S02, high-pressure treatment andinfrared heating drying are performed; S03, a filter tip additive and a cellulose acetate filter stick are made into a filter stick in a ternary composite way. According to the method for reducing benzo[a]pyrene in mainstream smoke of cigarettes, it is proposed for the first time to use tobacco stems for preparing the filter tip additive through chemical modification; the high-pressure reaction pressure and reaction temperature and the ternary composite filter stick are the key points of the method, the filter tip additive can have better smoking quality by selecting the suitable temperature and pressure, and the release amount of benzo[a]pyrene in mainstream smoke of cigarettes can be reduced by applying the novel ternary composite filter stick; the method is easy to operate, wide in rawmaterial source, low in cost and beneficial to reducing the harm of cigarettes.

Description

technical field [0001] The invention relates to a method for reducing benzo[a]pyrene in mainstream smoke of cigarettes, and belongs to the technical field of production of cigarette filter additives. Background technique [0002] Benzo[a]pyrene is one of the seven harmful components in mainstream cigarette smoke. At present, the tobacco industry has used a series of new technologies, new materials, and new methods to reduce benzo[a]pyrene in mainstream smoke. These methods mainly include Raw material optimization, leaf group optimization, use of shredded tobacco combustion aid and ACF mouthpiece, etc. However, at present, there are relatively few studies on the preparation of new filter additives from tobacco stems and the reduction of benzo[a]pyrene in mainstream smoke. [0003] Tobacco stems are the thick and hard veins of tobacco leaves, accounting for about 25% to 30% of the leaf weight. As a big tobacco producing country, about hundreds of thousands of tons of tobacco...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A24D3/02
CPCA24D3/0212
Inventor 沈晓晨尤晓娟秦艳华石怀彬廖惠云庄亚东李朝建
Owner CHINA TOBACCO JIANGSU INDAL