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Slice production method for treating tobacco waste extract by using membrane separation technology

A technology for the production of tobacco waste and flakes, which is applied in the treatment of tobacco, tobacco, and preparation of tobacco, etc. It can solve the problems of poor fluidity, difficulty in controlling the quality of the extract solution, unfavorable growth and reproduction of microorganisms, etc., and achieves the improvement of the quality of tobacco flakes and the separation process. Ease of control, the effect of improving the quality of tobacco sheets

Active Publication Date: 2009-12-23
HUBEI CHINA TOBACCO IND +1
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  • Summary
  • Abstract
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AI Technical Summary

Problems solved by technology

[0006] 1. The use of enzyme preparations, because the enzyme has a certain limit on the degradation of macromolecular substances, can only partially reduce the content of macromolecular substances in the extract; at the same time, the small molecular substances produced by degradation may also aggregate into other substances with higher molecular weight. substances; since the enzyme preparation itself is also a kind of protein, adding the enzyme preparation will also make the composition of the material system more complicated
[0007] 2. Enzyme biological preparations are used. Due to the high viscosity and poor fluidity of the extract, it is not conducive to the growth and reproduction of microorganisms; in the process of microbial metabolism, small molecular substances will be preferentially used as nutrients. The introduction of molecular substances into the material system will also make the whole system more complicated, which is conducive to the growth and reproduction of miscellaneous bacteria, making it difficult to control the quality of the extract

Method used

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  • Slice production method for treating tobacco waste extract by using membrane separation technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 1. Take 15kg of tobacco stems, add 5 times of water, raise the temperature to 60°C, and soak for 1 hour.

[0024] 2. Separation with a conventional centrifuge to obtain 50kg of extract. Sampling and detection of the extract showed that the total nitrogen was 3.2 mg / L and the pectin was 1.03 mg / L. The total nitrogen includes macromolecular proteins, small molecular amino acids, nicotine and other substances.

[0025] 3. Use the ultrafiltration membrane separation device to remove impurities from the extract, and the pore size of the membrane element is 7nm. The working conditions are: pressure 0.5MPa, flow velocity 4m / s, temperature 40°C, and 44kg of filtrate is obtained. The ultrafiltration filtrate was sampled and detected: the total nitrogen was 2.2 mg / L, which was 31% lower than the original extract, and pectin was not detected. The remaining total nitrogen should be small molecular nitrogen-containing substances such as amino acids and nicotine that pass through ...

Embodiment 2

[0031] 1. Take 12kg of tobacco powder, add 5 times of water, raise the temperature to 60°C, and soak for 1 hour.

[0032] 2. Separation with plate and frame to obtain 50kg of extract solution. Sampling and detection of the extract showed that the total nitrogen was 2.8 mg / L, and the pectin was 0.4 mg / L. The total nitrogen includes macromolecular proteins, small molecular amino acids, nicotine and other substances.

[0033] 3. Pass the leaching solution through an ultrafiltration membrane separation device to remove impurities, and the pore size of the membrane element is 7nm. The working conditions are: pressure 0.5MPa, flow velocity 4m / s, temperature 40°C, and obtain 41kg of filtrate. The ultrafiltration filtrate was sampled and detected: the total nitrogen was 2.1 mg / L, which was 25% less than the original extract, and the pectin was not detected. The remaining total nitrogen should be small molecular nitrogen-containing substances such as amino acids and nicotine that pa...

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Abstract

The invention discloses a slice production method for treating tobacco waste extract by using membrane separation technology, and belongs to the technical field of tobacco slice production by a papermaking method. The method is carried out by the following steps in turn: (1) extracting, (2) separating, (3) removing impurities, namely removing the impurities in the tobacco waste extract through a membrane separation device, (4) concentrating, namely concentrating the obtained ultra-filtrate after impurity removal through a nano-filtration membrane separation device, (5) coating, and (6) drying. The method has the main advantages that the separation process is easy to control, has good repeatability, and is suitable for industrialized production conditions. By adopting a nano-filtration membrane to remove the impurities, macromolecular substances such as protein, pectin and the like in an extract system can be effectively intercepted. Substances influencing the sensory quality of the tobacco slice in the obtained ultra-filtrate basically do not exist. Small molecular substances such as amino acid, monosaccharide, nicotine and the like in the system are kept, and the substances can improve the quality of the tobacco slice.

Description

technical field [0001] The invention belongs to the technical field of tobacco sheet production by papermaking, and in particular relates to a process for improving the sensory quality of tobacco sheet by using membrane separation technology to process tobacco waste extracts such as tobacco stems, tobacco powder and low-grade tobacco leaves. Background technique [0002] Tobacco flakes are processed tobacco waste such as tobacco stems, tobacco dust and low-grade tobacco leaves during the production of cigarettes, and are manufactured as flake-shaped tobacco regenerated raw materials that meet the requirements of cigarette formula. Tobacco flakes are blended with natural tobacco leaves in a certain proportion Made into cigarettes. Its main significance is: to improve the utilization rate of tobacco raw materials, make full use of the waste in the cigarette production process; reduce the tar content of cigarettes, and improve the grade of cigarettes. The production of tobacco...

Claims

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Application Information

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IPC IPC(8): A24B3/14A24B15/24B01D61/14
Inventor 孙德平万端极唐向兵徐国念姚元军夏炎刘志昌韩骁刘良才万超
Owner HUBEI CHINA TOBACCO IND
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