CN1513390A - Filter tip for reducing harmful substances of cigarettes and preparation method thereof - Google Patents
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- Publication number
- CN1513390A CN1513390A CNA031488072A CN03148807A CN1513390A CN 1513390 A CN1513390 A CN 1513390A CN A031488072 A CNA031488072 A CN A031488072A CN 03148807 A CN03148807 A CN 03148807A CN 1513390 A CN1513390 A CN 1513390A
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- filter
- curcumin
- melatonin
- tip
- cigarette
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- NPCOQXAVBJJZBQ-UHFFFAOYSA-N reduced coenzyme Q9 Natural products COC1=C(O)C(C)=C(CC=C(C)CCC=C(C)CCC=C(C)CCC=C(C)CCC=C(C)CCC=C(C)CCC=C(C)CCC=C(C)CCC=C(C)C)C(O)=C1OC NPCOQXAVBJJZBQ-UHFFFAOYSA-N 0.000 description 1
- 230000027756 respiratory electron transport chain Effects 0.000 description 1
- 230000004202 respiratory function Effects 0.000 description 1
- ZKZBPNGNEQAJSX-UHFFFAOYSA-N selenocysteine Chemical compound [SeH]CC(N)C(O)=O ZKZBPNGNEQAJSX-UHFFFAOYSA-N 0.000 description 1
- 229960002718 selenomethionine Drugs 0.000 description 1
- 229910052624 sepiolite Inorganic materials 0.000 description 1
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- 229910002027 silica gel Inorganic materials 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 238000013319 spin trapping Methods 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 210000002784 stomach Anatomy 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000004227 thermal cracking Methods 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 230000035922 thirst Effects 0.000 description 1
- 230000000451 tissue damage Effects 0.000 description 1
- 231100000827 tissue damage Toxicity 0.000 description 1
- 229960000984 tocofersolan Drugs 0.000 description 1
- 238000006276 transfer reaction Methods 0.000 description 1
- 210000004881 tumor cell Anatomy 0.000 description 1
- 229940035936 ubiquinone Drugs 0.000 description 1
- 206010048828 underweight Diseases 0.000 description 1
- 208000019553 vascular disease Diseases 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
- 239000011782 vitamin Substances 0.000 description 1
- 229930003231 vitamin Natural products 0.000 description 1
- 229940088594 vitamin Drugs 0.000 description 1
- 235000013343 vitamin Nutrition 0.000 description 1
- 235000019155 vitamin A Nutrition 0.000 description 1
- 239000011719 vitamin A Substances 0.000 description 1
- 235000019154 vitamin C Nutrition 0.000 description 1
- 239000011718 vitamin C Substances 0.000 description 1
- 235000019165 vitamin E Nutrition 0.000 description 1
- 239000011709 vitamin E Substances 0.000 description 1
- 229940046009 vitamin E Drugs 0.000 description 1
- 229940045997 vitamin a Drugs 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N zinc Drugs [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 235000016804 zinc Nutrition 0.000 description 1
- 235000004835 α-tocopherol Nutrition 0.000 description 1
- 239000002076 α-tocopherol Substances 0.000 description 1
Landscapes
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
Abstract
The invention relates to a filter tip capable of effectively removing harmful components in cigarette smoke. It comprises a filter tip forming paper and acetate fiber tows, and is characterized in that: the acetate tow also contains melatonin and curcumin. The preparation method comprises dissolving melatonin and curcumin mixture in 95% medical ethanol, mixing to obtain solution, adding the ethanol solution containing melatonin and curcumin into triethylene glycol diacetate as binder used in bundling and molding cellulose acetate tow of filter rod, stirring, and bundling and molding cellulose acetate tow in filter rod molding machine to obtain filter tip. The prepared filter tip has a clearance rate of 17.27% -47.92% for free radicals in smoke, and a reduction rate of 50.16% -88.14% for fused ring aromatic benzo [ a ] pyrene, and has a relatively ideal clearance effect.
Description
Technical field
The present invention relates to reduce the technology of cigarette harmful components, the particularly a kind of filter tip that can effectively remove the cigarette smoke harmful constituent.
Background technology
Tobacco mainly is made up of carbohydrate (accounting for 40%-50%) carboxylic acid, pigment, terpenoid substance, alkane, lipid material etc., also has nutrients essential in some growth courses (as nitrate etc.) and some pollutant (as agricultural chemicals, important meals element etc.) simultaneously.Tobacco and other plant difference are that its contained terpenoid substance is abundanter, promptly usually said " wax " or " nicotine ".
Cigarette burning relates to the chemical reaction of a series of thermal decomposition and thermal synthesis, there be the imperfect combustion and the destructive distillation effect of organic principle in this process, 4,000 kinds of compounds are arranged in the flue gas that is produced approximately, and wherein the compound of tobacco burning generation itself just reaches about 2740 kinds.Up to now, had a large amount of compositions to be harmful to by evaluation in the flue gas, the carcinogen of having found out at present just has kind more than 40.As benzene, 2-naphthylamines, 4-aminobphenyl, polonium-210, aldehyde, hydrazine, volatile nitrosamine, tobacco-specific nitrosamine, N-nitroso pyridine, benzo [a] pyrene, N-nitrosodiethanolamine and cadmium, benzo [a] anthracene, butyrolactone etc. all is the carcinogenic material of possible.In addition, also contain a series of poisonous or mutagenic matters such as nicotine (nicotine), tar, carbon monoxide, hydrogen cyanide, polycyclic aromatic hydrocarbon compounds, free radical in the flue gas that cigarette burning produces.
Benzo in the cigarette [a] pyrene is by in the direct suction body of smoker, and its concentration is quite high.The cigarette package that burns can produce benzo [a] pyrene of 0.24-0.28 microgram.Show every increase by 1 microgram of airborne benzo [a] pyrene content/1000 meters according to investigations
3, will make the lung cancer morbidity rate increase 5-15%; Nicotine is a kind of unpleasant, bitter, water white oily liquid, high volatility very easily is oxidized to lead in air, can be rapidly water-soluble and alcohol in, be easy to be absorbed by the mouth and nose tunica mucosa bronchiorum by body, cause tracheitis, poison brain cell, can make the smoker central nervous system symptom occur, nicotine can promote the formation of cancer, nicotine can cause blood pressure to raise, palpitating speed, even cardiac arrhythmia and bring out heart disease; Can produce carbon monoxide 20-30 milligram during every cigarette burning.Carbon monoxide is higher 250 times than oxygen with the affinity of hemoglobin.When people sucked more carbon monoxide, carbon monoxide combined a large amount of carbon of formation and closes hemoglobin with hemoglobin, cause tissue and organ anoxic, made multiple organ such as brain, heart produce damage; Coke tar in cigarette can be attached to smoker's tracheae, bronchus and alveolar surface, produces physics, chemical stimulation, and insulting respiratory function, tar contain multiple carcinogenic substance and short cancer thing; Contain polonium-210 radioactive element in the cigarette smoke, can be inhaled into the interior also deposition of lung during smoking in vivo, they constantly emit ray, the long-term damage lung tissue.Inhale the people of 20 cigarettes an every day, the amount of radiation of the radioactive element that sucked in 1 year is equivalent to the smoker and clapped 300 X line rabats in 1 year; Containing harmful substances such as arsenic, mercury, cadmium, nickel in the tobacco, is example with the cadmium, and cadmium is accumulated in the body, can cause asthma, pulmonary emphysema.
Free radical in the cigarette smoke claims free radical again, be meant that generally covalent bond in the compound molecule is under light, heat, high-energy ray radiation effects, or cylinder metabolism-ure do not matched atom, atomic group, molecule or the ion of valence electron (promptly having odd electron) by homolysis for containing, and is referred to as the lone electron system traditionally.Free radical is owing to have unpaired electron, so chemical property is more active, easily and other material react (as dimerization reaction, hydrogen abstraction reaction, disproportionated reaction, addition reaction, fragmentation reaction, electron transfer reaction or oxidation reaction etc.).Free radical in the cigarette smoke can be divided into two classes, one class be can be held back by cambridge filter, be enriched in the free radical in the tar, be called a phase free radical, as quinone/semiquinone free radical, polycyclic aromatic hydrocarbon free radical, graphitic carbon and phosphorus free radical, their molecular weight are bigger, stability is high slightly, and available electron spin resonance spectrometer (ESR) observes directly.The another kind of free radical that can not be held back by cambridge filter exactly, be called gaseous phase free radical, as alkanes free radical and alkoxy free group, oxygen radical etc., little, the poor stability of their weight, can not directly observe with ESR, change into spin compound more stable, that can detect with ESR after they must being caught with the spin trapping technique.Free radical in the cigarette smoke produces because of pipe tobacco imperfect combustion, destructive distillation and photodissociation, thermal cracking and a series of oxidation-reduction process when cigarette burns and sucks.As: 1,4-benzoquinone pyrolysis or hydrogenation-→ the semiquinone free radical; Q pyrolysis of H oxidized coenzyme or hydrogenation-→ H ubiquinone semiquinone free radical.
Free radical in the cigarette smoke is harmful mostly, these chemical constituents can cause peroxidating, protein oxidation, the hereditary material DNA infringement of lipid, cause the disease of many degenerative such as pulmonary emphysema, angiocardiopathy, miocardial infarction, cancer, cataract etc.
Harm of smoking, common to all.Whole world every year reaches more than 2,500,000 people because of smoking death, and cigarette is human first killer.Have data to show, the lung cancer morbidity rate of long-term smoker is than the high 10-20 of non-smoker times, and the high 6-10 of the laryngocarcinoma incidence of disease times, the high 2-3 of Incidence of CHD doubly.The circulatory system incidence of disease is high 3 times, and the high 2-8 of the tracheitis incidence of disease doubly.Smoking has catastrophe risk to the women, if the women of smoking is just using oral contraceptive, can increase the chance that heart attack and lower limb vein thrombus form; Premature labor and underweight easily takes place in smoking pregnant woman's fetus, and the infantile period immunologic function reduces, and is liable to illness; According to statistics, baby's terateger rate of pregnant woman's passive smoking obviously increases.Smoking is the main cause that causes the heart, cranial vascular disease to worsen.The smoker also easily suffers from diseases such as stomach, duodenal ulcer and neurasthenia.
It is the smoker that 1/3rd population is arranged in the world, and the harm of cigarette smoke relates to public health problem.Prevent that the best approach that endangers from stopping smoking exactly.Yet smoking is very inveterate, and most people are difficult to it is given up.Therefore, people highly thirst for finding preventing the method for cigarette smoke harm, how these materials are reduced to minimum to the harm of health, are not only the great research topic of tobacco business, and are paid close attention to by consumers in general.
Cigarette tipping filter tip is the important measures of tobacco sucking product reducing tar and reducing harm.Around this theme, scientific and technical personnel have done a large amount of research work, for example in filter tip, add adsorbent with loose structure, comprise active carbon, sepiolite, montmorillonite, medical stone, silica gel, hydroxyapatite, organosilicon, synthetic mica, ferroheme, anion and cationic ion-exchange resin, in addition, also have tealeaves, coffee, lichens, porphyrin and similar complex compound also to be used as adsorbent; And for example by adding the work that antioxidant is optionally removed free radical in the flue gas in the mouth rod, selected antioxidant comprises glutathione, vitamin C and derivative thereof, contain selenoaminoacid (as selenomethionine or selenocystein), sulfur-containing amino acid (as L-cysteine, L-tarine, L-methionine, alpha-tocopherol, vitamin E, vitamin A and zinc salt), Tea Polyphenols, OPC etc.These work of forefathers have all improved the filter effect of cigarette filter to a certain extent, still, and the filtration and the function of detoxification of the filter tip that awaits further to improve.
Summary of the invention
The object of the present invention is to provide a kind of cigarette filter that can effectively remove free radical and condensed-nuclei aromatics in the cigarette smoke and preparation method thereof.
A kind of filter tip that reduces the cigarette harmful substance of the present invention is made of cigarette plug paper, acetate silk, it is characterized in that: also contain melatonin and curcumin in the middle of the acetate silk.The content of melatonin is counted the 0.001%-0.01% of this filter-tip acetate silk weight by weight, and the content of curcumin is the 0.001%-0.05% of this filter-tip acetate silk weight by weight percentage.Its preparation method is at first the mixture of melatonin and curcumin to be dissolved in 95% the medical ethanol, mixes, and makes solution.When then the said ethanolic solution that contains melatonin and curcumin being joined mouth rod acetate silk bundling shaping in the employed binding agent triethylene-glycol diacetate, stir, then on the filter rod make-up machine, carry out the operation of acetate silk bundling shaping, make filter tip; Or the above-mentioned ethanolic solution that contains melatonin and curcumin is sprayed onto on the acetate silk of shredding equably, after the drying, on the mouth rod forming machine, make filter tip.
Control the ratio of the melatonin in the described ethanolic solution, make the content of melatonin in the cigarette filter count the 0.001%-0.01% of this filter-tip acetate silk weight by weight, make the content of curcumin in the cigarette filter count the 0.001%-0.05% of this filter-tip acetate silk weight by weight.
The cigarette filter that can effectively remove free radical and condensed-nuclei aromatics in the cigarette smoke of the present invention, employed free radical scavenger is melatonin (Melatonin), melatonin is the present known the strongest material of non-oxidizability, and it mainly is a kind of indoles hormone that is produced by mammal and human pineal gland.The molecular formula of melatonin is C
13N
2H
16O
2, molecular weight 232.27, fusing point 116～118, chemical name are N-acetyl group-5-methoxytryptamine (N-acetyl-5-methoxytryptamine).In the U.S., melatonin is as vitamin, as health food commonly used.Melatonin can be removed the free radical that the human body intracellular metabolic produces, and suppresses the peroxidization of lipid and protects eucaryotic cell structure, prevents dna damage, can also reduce the content of body endoperoxide.Discover that melatonin causes that to safrole (a kind of by discharging free radical the carcinogenic substance of damage dna) protective effect of dna damage can reach 99%.Peroxidating that melatonin causes exogenous poisonous substance (as paraquat) and the tissue damage that free radical caused have tangible antagonism.Now, melatonin be can manually synthesize, and commercialization and suitability for industrialized production dropped into.
The present invention can effectively remove the cigarette filter of free radical and condensed-nuclei aromatics in the cigarette smoke, and the nertralizer of employed condensed-nuclei aromatics is the carbon dioxide supercritical extraction thing of turmeric, and its main component is a curcumin, and molecular formula is [CH
3OC
6H
3(OH) CH:CHCO]
2CH
2, be a kind of effective antimutanen, can prevent cell mutation and suppress the development in each stage of tumour cell, be the prevention and control of cancer medicine, because its special structure, it also has Mulberry Extract, anti-oxidation function.
Curcumin is the active ingredient of extracting in the Chinese medicine turmeric, turmeric is a kind of zingiberaceous plant (curcuminlonga), in the seal Europe national culture of India, used widely, used as colouring agent by the mankind the earliest. found gradually afterwards that it had many special functions, and all without any side effects on permanent human use's history.The general solvent extraction that adopts routine, extract curcumin as solvent with ethanol from the Chinese medicine turmeric, this method is not high except product purity, easily outside the residual harmful substance, the most fatal drawback is that active ingredient is easy to be destroyed, and it is resisted induce, resist the activity of sudden change to reduce greatly.The present invention adopts carbon dioxide supercritical extraction technology, because operating temperature is low, and system is airtight, can preserve the volatile ingredient to thermally labile and easy oxidation in a large number, has avoided above-mentioned shortcoming; In addition, carbon dioxide is higher than critical temperature Tc=31.26 in temperature, pressure is higher than under the state of critical pressure Pc=7.2MPa, and character can change, its density is bordering on liquid, and viscosity is bordering on gas, and diffusion coefficient is 100 times of liquid, solvability is strong, and the material purity of extraction is higher.
The turmeric extraction mixture that adopts CO 2 supercritical to extract contains curcumin, curcuma oil and protein antioxidant.The turmeric of every 25-33 kilogram by co_2 supercritical fluid extraction, can extract 1 kilogram in mixture, and wherein the weight percentage of curcumin is in the 31.79%-46.28% scope.
Test of many times according to our research group, count the 0.001%-0.01% of this filter-tip acetate silk weight by weight at the content of the melatonin of the intrafascicular adding of acetate fibres of mouth rod, the content of curcumin is counted the 0.001%-0.05% of this filter-tip acetate silk weight by weight, prepared filter tip is 17.27%-47.92% for the clearance rate of the free radical in the flue gas, reduced rate for condensed-nuclei aromatics benzo [a] pyrene can reach 50.16%-88.14%, has more satisfactory removing effect.
The specific embodiment
The inventor further sets forth the technology of the present invention by following embodiment, but the following examples are intended to illustrate the present invention, and does not constitute the restriction of this patent.
Embodiment 1
The carbon dioxide supercritical extraction thing of a certain amount of melatonin and turmeric joined in 95% the medical ethanol, fully stir, obtain the solution of homogeneous.When the ethanolic solution that will contain melatonin and curcumin then joins mouth rod acetate silk bundling shaping in the employed binding agent triethylene-glycol diacetate, stir, then on the filter rod make-up machine, carry out the operation of acetate silk bundling shaping, make filter tip, and it is hinged with Hongta board cigarette props up and obtain filter-tipped cigarette and prop up.The weight of the carbon dioxide supercritical extraction thing of melatonin and turmeric is respectively 0.001% and 0.05% of acetate silk weight in the filter rod that this cigarette props up.
Prop up with common Hongta board filter tip cigarette and to compare sample, use has the signal peak peak intensity of the gaseous phase free radical in electron spin resonance spectrometer (ESR) the test flue gas of capturing device, test 30 times, gaseous phase free radical signal peak peak height unit average in the control sample flue gas is 49.8, the gaseous phase free radical signal peak peak intensity mean value that contains in the filter rod in the Cigarette flue gas of carbon dioxide supercritical extraction thing of melatonin and turmeric is 41.2, and the free radical scavenging activity of specimen is 17.27%.Detailed results sees the following form.
| Project | The control sample detected value | Sample detection value of the present invention | Clearance rate (%) |
| Gaseous phase free radical | 49.8 peak height unit/ | 41.2 peak height unit/ | 17.27 |
| Benzo [a] pyrene | 11.21 nanogram/ | 1.33 nanogram/ | 88.14 |
| Benzo [e] pyrene | 9.43 nanogram/ | 1.26 nanogram/ | 86.64 |
| Benzo [a] anthracene | 14.28 nanogram/ | 4.49 nanogram/ | 68.56 |
Embodiment 2
The carbon dioxide supercritical extraction thing that weight is respectively 0.003% and 0.02% melatonin of acetate silk weight and turmeric joins in 95% the medical ethanol, fully stirs, and obtains the solution of homogeneous.The ethanolic solution that will contain melatonin and curcumin then evenly is sprayed onto on the acetate silk, after the oven dry, on the filter rod make-up machine, carry out the operation of acetate silk bundling shaping again, make filter tip, and it is hinged with Hongta board cigarette props up and obtain filter-tipped cigarette and prop up.
Prop up with common Hongta board filter tip cigarette and to compare sample, use has the signal peak peak intensity of the gaseous phase free radical in electron spin resonance spectrometer (ESR) the test flue gas of capturing device, test 30 times, gaseous phase free radical signal peak peak height unit average in the control sample flue gas is 46.1, the sample bacteriostasis rate that contains 90 days the accelerated test of gaseous phase free radical signal peak temperature in the Cigarette flue gas of carbon dioxide supercritical extraction thing of melatonin and turmeric in the filter rod does not change, and shows that the antibiotic property of playing card can keep 2 years.
Embodiment 2
1% white carbon of the ink by weight of using when weight ratio is counted press polish is the silver type antibacterial agent of carrier, joins in the printing ink that the press polish operation uses, and be binding agent with the polyvinyl butyral resin in this printing ink, ethanol is solvent.With playing cards paper press polish, cross cutting, tear board, cross cutting, process such as dress box etc. again, make antibiotic playing card.Compare with the playing card that do not contain antiseptic.According to State Standard of the People's Republic of China GB159790-2002, the regulation of the 10th page of C4.1 and the 11st page of C6, carry out antibacterial tests, bacterial action 2,5,10,20 minutes records colibacillary bacteriostasis rate is respectively 99.82,99.91,98.78 and 98.97; Record the staphylococcus aureus bacteriostasis rate is respectively 70.59,71.43,93.75,76.10; The sample bacteriostasis rate of 90 days accelerated test of 37 ℃ of constant temperature does not change, and shows that the antibiotic property of playing card can keep 2 years.
Embodiment 3
2.5% biological antibiotic agent shitosan of the ink by weight of using when weight ratio is counted press polish joins in the printing ink that the press polish operation uses, and is binding agent with the polyvinyl butyral resin in this printing ink, and ethanol is solvent.With playing cards paper press polish, cross cutting, tear board, cross cutting, process such as dress box etc. again, make antibiotic playing card.Compare with the playing card that do not contain antiseptic.According to State Standard of the People's Republic of China GB15979-2002, the regulation of the 10th page of C4.1 and the 11st page of C6, carry out antibacterial tests, bacterial action 2,5,10,20 minutes records colibacillary bacteriostasis rate is respectively 99.51,99.70,99.73 and 99.88; Record the staphylococcus aureus bacteriostasis rate is respectively 75.63,76.88,86.25,83.92; The sample bacteriostasis rate of 90 days accelerated test of 37 ℃ of constant temperature does not change, and shows that the antibiotic property of playing card can keep 2 years.
| Project | The control sample detected value | Sample detection value of the present invention | Clearance rate (%) |
| Gaseous phase free radical | 43.2 peak height unit/ | 22.5 peak height unit/ | 47.92 |
| Benzo [a] pyrene | 9.85 nanogram/ | 4.91 nanogram/ | 50.16 |
| Benzo [e] pyrene | 10.68 nanogram/ | 3.57 nanogram/ | 66.58 |
| Benzo [a] anthracene | 15.74 nanogram/ | 11.49 nanogram/ | 27.01 |
Claims (5)
1, a kind of filter tip that reduces the cigarette harmful substance is made of cigarette plug paper, acetate silk, it is characterized in that: also contain melatonin and curcumin in the middle of the acetate silk.
2, a kind of filter tip that reduces the cigarette harmful substance according to claim 1, it is characterized in that the content of described melatonin counts the 0.001%-0.01% of this filter-tip acetate silk weight by weight, the content of curcumin is the 0.001%-0.05% of this filter-tip acetate silk weight by weight percentage.
3, a kind of filter-tip preparation method who reduces the cigarette harmful substance is characterized in that: at first the mixture of melatonin and curcumin is dissolved in 95% the medical ethanol, mixes, make solution.When then the said ethanolic solution that contains melatonin and curcumin being joined mouth rod acetate silk bundling shaping in the employed binding agent triethylene-glycol diacetate, stir, then on the filter rod make-up machine, carry out the operation of acetate silk bundling shaping, make filter tip; Or the above-mentioned ethanolic solution that contains melatonin and curcumin is sprayed onto on the acetate silk of shredding equably, after the drying, on the mouth rod forming machine, make filter tip.
4, a kind of filter-tip preparation method who reduces the cigarette harmful substance according to claim 3, it is characterized in that controlling the ratio of the melatonin in the described ethanolic solution, make the content of melatonin in the cigarette filter count the 0.001%-0.01% of this filter-tip acetate silk weight by weight, make the content of curcumin in the cigarette filter count the 0.001%-0.05% of this filter-tip acetate silk weight by weight.
5, a kind of filter-tip preparation method who reduces the cigarette harmful substance according to claim 3 is characterized in that curcumin is the carbon dioxide supercritical extraction thing of turmeric, and its main component is a curcumin, and molecular formula is [CH
3OC
6H
3(OH) CH:CHCO]
2CH
2
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| CN 03148807 CN1197492C (en) | 2003-06-12 | 2003-06-12 | Filter tip for reducing harmful substances of cigarettes and preparation method thereof |
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|---|---|---|---|
| CN 03148807 CN1197492C (en) | 2003-06-12 | 2003-06-12 | Filter tip for reducing harmful substances of cigarettes and preparation method thereof |
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| CN113073128A (en) * | 2021-04-07 | 2021-07-06 | 云南中烟工业有限责任公司 | Method for detecting bacteriostatic effect of filter stick |
| CN113481756A (en) * | 2021-06-29 | 2021-10-08 | 河南中烟工业有限责任公司 | Free radical scavenging composition and preparation method and application thereof |
| CN113475749A (en) * | 2021-06-29 | 2021-10-08 | 河南中烟工业有限责任公司 | Filter stick capable of reducing gas-phase free radicals of smoke, cigarette tows and preparation method of cigarette tows |
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| CN1197492C (en) | 2005-04-20 |
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