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Cigarette filter containing material selectively decreasing biological harm of carbon monoxide (CO) in smoke and preparation method of cigarette filter

A selective filter technology, which is applied in e-liquid filter elements, tobacco, food science, etc., can solve problems such as easy degradation, easy inactivation, and reduced filter acceptance, so as to reduce harmful substances in smoke and maintain mild fixing conditions , to ensure a sustained effect

Active Publication Date: 2014-03-26
HUBEI CHINA TOBACCO IND +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the current research, hemoglobin is either directly added to the filter, or added to the filter after being adsorbed by activated carbon. This method cannot ensure the activity of hemoglobin, nor can it ensure its harm reduction effect
Moreover, filters containing activated carbon negatively affect the aroma of flue-cured cigarettes
The hemoglobin directly added to the filter is red, while the cigarette filter is white, adding it to the filter reduces the acceptance of the filter
In addition, the hemoglobin added in this way has defects such as short half-life, easy degradation, and easy inactivation, and must be added in large quantities to maintain the harm reduction effect, thereby greatly restricting its application

Method used

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  • Cigarette filter containing material selectively decreasing biological harm of carbon monoxide (CO) in smoke and preparation method of cigarette filter
  • Cigarette filter containing material selectively decreasing biological harm of carbon monoxide (CO) in smoke and preparation method of cigarette filter
  • Cigarette filter containing material selectively decreasing biological harm of carbon monoxide (CO) in smoke and preparation method of cigarette filter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1, fixation of hemoglobin

[0027] In this example, hemoglobin was weighed and dissolved in a phosphate buffer solution with a pH of 6.5 to prepare a solution with a concentration of 10 μmol / L; the prepared solution was centrifuged at a speed of 3000 r / min for 30 minutes, and the liquid was divided into three layers: The first layer is a thin white solid, which is the precipitation layer of fat-soluble substances; the second layer is a red transparent liquid, which is a pure hemoglobin aqueous solution; the third layer is a dark red precipitate of other impurities. Draw the second layer of pure hemoglobin aqueous solution, add PEG-PCL amphiphilic diblock copolymers (the number-average molecular mass of which is respectively 8000, or 6000, or 4000) accounting for 3% to 7% of the total amount of hemoglobin, at 25 ℃ with a constant temperature oscillator for 8 hours; the resulting solution was centrifuged at 2000rpm for 10 minutes, the resulting supernatant was ...

Embodiment 2

[0042] Example 2, PEG-PCL amphiphilic diblock copolymer self-assembled nano-mesoporous material (HINH) of immobilized hemoglobin is added to the filter

[0043] HINH-1, HINH-2, and HINH-3 in Table 2 were added to the tow material of the filter tip respectively, and the HINH added accounted for 15% of the total weight of the filter tip tow, and the obtained filter tip was Filters containing biohazardous materials that selectively reduce CO in flue gas.

[0044] Selective harm reduction performance of filters containing biohazard reduction materials that selectively reduce CO in flue gas

[0045] The self-assembled nanometer mesoporous filter material loaded with different amounts of hemoglobin was made into a HINH-containing cigarette filter, that is, a filter containing a biohazard-reducing material that selectively reduces CO in smoke. Under the condition that the formula of the cigarette leaf group and other auxiliary materials remain unchanged, the filter tip containing th...

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Abstract

The invention discloses a cigarette filter containing a material selectively decreasing biological harm of carbon monoxide (CO) in smoke and a preparation method of the cigarette filter, belonging to the technical field of the cigarette filter. The cigarette filter provided by the invention is characterized in that a nanometer mesoporous material of self-assembling immobilized hemoglobin of amphiphilic diblock copolymer of polyethylene glycol-polycaprolactone is added into a tow material, wherein the nanometer mesoporous material accounts for 10-25% of the total weight of the tow material. The preparation method of the cigarette filter provided by the invention comprises the following steps: [1] immobilizing hemoglobin in the amphiphilic diblock copolymer of polyethylene glycol-polycaprolactone with the average molecular weight of 8000, 6000 or 4000; and [2] adding the HINH material (nanometer mesoporous material) into the tow material of the cigarette filter. The cigarette filter provided by the invention has a function of selectively decreasing the biological harm of CO in the smoke. An immobilization condition of the PEG-PCL (polyethylene glycol-polycaprolactone) immobilized hemoglobin is mild, the activity of the hemoglobin is guaranteed, the storage period is long and the fragrance of flue-cured type cigarettes is not damaged.

Description

technical field [0001] The invention belongs to the technical field of cigarette filters, and in particular relates to a filter tip which uses polycaprolactone-polyethylene glycol copolymer (PEG-PCL) to immobilize hemoglobin and has the function of selectively reducing CO in smoke and the bio-hazard reduction function. The preparation method of its filter tip. Background technique [0002] With the signing of the "Framework Convention on Tobacco Control", harmful components such as tar, CO, and HCN in mainstream cigarette smoke have attracted much attention. Research and development of high-quality, safe and low-hazard cigarettes has become the development direction of international cigarettes. Among them, the new filter material with harm reduction function has become the focus of breakthroughs of various cigarette companies, and has become a research hotspot for cigarette workers. Hemoglobin has become the focus of damage reduction research because of its high binding and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A24D3/14A24D3/02
Inventor 王娜司辉朱巍熊国玺
Owner HUBEI CHINA TOBACCO IND
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