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A method for selectively reducing CD content in the extract of reconstituted tobacco leaves by papermaking

A technology for reconstituted tobacco leaves and extracts, applied in tobacco, tobacco preparation, tobacco treatment, etc., can solve the problems of reduced smoking quality, loss, and reduced Cd content of cigarettes, and achieve the effects of reducing Cd content, stable quality, and improving smoking quality

Active Publication Date: 2017-01-04
CHINA TOBACCO ANHUI IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Chinese patent CN101940353A discloses that the optimization of cigarette processing parameters such as microwave loosening, shred drying temperature and loosening moisture regain is used to reduce the Cd content, and the reduction rate of Cd content is 3.77-15.17%, but the effect of these methods to reduce the Cd content needs to be further improved
Although ordinary electrodialysis technology can realize the selective removal of chloride ion, nitrate and other ionic compounds relative to non-ionic compounds, it usually also leads to a large loss of tobacco ionic active components (nicotine and organic acids), which will inevitably Lead to decline in the quality of cigarette smoking

Method used

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  • A method for selectively reducing CD content in the extract of reconstituted tobacco leaves by papermaking
  • A method for selectively reducing CD content in the extract of reconstituted tobacco leaves by papermaking

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Tobacco extract was prepared from tobacco leaves, and 500mL of tobacco extract with a solid content of 7% was installed with 10 pairs of ion-exchange membranes (wherein the negative membrane was Selemion TM Monovalent anions selectively permeate the membrane, and the positive membrane is Selemion TM In the desalination chamber of the electrodialysis device of monovalent cation selective permeable membrane, the effective area is 1 square meter), and in the concentration chamber, add 500mL of tap water; at 15mA / cm 2 Under the condition of constant current density, the electrodialysis treatment was carried out at a flow rate of 5 L / min for 40 min. After testing, the electrical conductivity of the tobacco extract in the desalination chamber decreased from the initial 16.50 mS / cm to 8.2 mS / cm after the treatment.

[0021] Install 10 pairs of common ion-exchange membranes (anion-exchange membrane is CJA-2 homogeneous anion-exchange membrane, cation-exchange membrane is CJC-2...

Embodiment 2

[0027] Tobacco extract was prepared from tobacco stems, and 500mL of tobacco extract with a solid content of 8% was installed with 10 pairs of ion-exchange membranes (wherein the negative membrane was Selemion TM Monovalent anion selectively permeates the membrane; the cation exchange membrane is a CJC-2 homogeneous cation exchange membrane, manufactured by Hefei Kejia Polymer Material Technology Co., Ltd.) in the desalination chamber of the electrodialysis device, and in the concentration chamber, add 500mL of 1.0mol / L of sodium sulfate as the initial electrolyte; at 20mA / cm 2 Under the condition of constant current density, the electrodialysis treatment was carried out at a flow rate of 5 L / min for 35 min. After testing, the conductivity of the tobacco extract in the desalination chamber decreased from the initial 17.30mS / cm to 5.2mS / cm after the treatment.

[0028] Install 10 pairs of common ion-exchange membranes (the anion-exchange membrane is CJA-2 homogeneous anion-exc...

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Abstract

The invention discloses a method for selectively reducing the content of Cd in paper-making reconstituted tobacco extraction liquid. The method is characterized in that the tobacco extraction liquid prepared according to the paper-making reconstituted tobacco production technology is led into a dilution chamber of an electrodialysis device so that the content of Cd can be reduced through electrodialysis processing, and in the Cd content reducing process, the Cd removal degree is controlled through the change of conductivity in the dilution chamber or the actual content of Cr; meanwhile, the content of nicotine and the total amount of organic acid in the dilution chamber are detected to inspect selectivity of cadmium ion removal. The method can effectively reduce the content of Cd, meanwhile, lose of main organic acid of nicotine and tobacco can be avoided, and smoking quality of reconstituted tobacco is guaranteed to the largest extent.

Description

technical field [0001] The invention relates to a method for selectively reducing the Cd content of reconstituted tobacco leaves by a papermaking method, and belongs to the technical field of reconstituted tobacco leaves produced by a papermaking method. Background technique [0002] Cadmium (Cd) is a heavy metal element with strong toxicity. The proportion of Cd in farmland soil in my country exceeding Grade II of "Soil Environmental Quality Standard (GB15618-1995)" is as high as 11.9-21.1%. Tobacco is a high Cd-accumulating plant, and the Cd accumulation in tobacco leaves accounts for 50-80% of the total absorption. The combustion point of Cd in tobacco is lower than that of other heavy metal elements, and it is easy to migrate into the particle phase of smoke and be absorbed by the human body. Therefore, the reduction of Cd in tobacco and smoke has become the focus of attention in the fields of tobacco and health. [0003] Paper-making reconstituted tobacco is a reconst...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A24B3/14A24B15/24
Inventor 佘世科葛少林黄兰张朝徐迎波田振峰陈开波王戍华戴奎韩璐邹鹏
Owner CHINA TOBACCO ANHUI IND CO LTD
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