CN109275954A - The coffee for reducing heavy metal in flue gas content toasts fragrant filter tip and preparation method thereof - Google Patents
The coffee for reducing heavy metal in flue gas content toasts fragrant filter tip and preparation method thereof Download PDFInfo
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- CN109275954A CN109275954A CN201811116205.0A CN201811116205A CN109275954A CN 109275954 A CN109275954 A CN 109275954A CN 201811116205 A CN201811116205 A CN 201811116205A CN 109275954 A CN109275954 A CN 109275954A
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/04—Tobacco smoke filters characterised by their shape or structure
- A24D3/048—Tobacco smoke filters characterised by their shape or structure containing additives
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B9/00—Essential oils; Perfumes
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
- Fats And Perfumes (AREA)
Abstract
The present invention relates to the coffees for reducing heavy metal in flue gas content to toast fragrant filter tip and preparation method thereof, which includes the following steps: step (1), prepares coffee baking Studies of The Aromatic Substances；Step (2) prepares the fragrant filter tip of coffee baking.The present invention can remove the flue gases such as macromolecular substances irritation or miscellaneous gas substance, obtain pure baking perfume (or spice) note substance, be added on filter tip, can improve the baking fragrance and suction mouthfeel of cigarette, reduce miscellaneous tolerance, improve the comfort and harmony of cigarette.Coffee baking Studies of The Aromatic Substances of the invention is compounded with bodied ferric sulfate, content of beary metal in cigarette smoke can be effectively reduced, preparation method is easy to operate, and product safety is with a wide range of applications.
Description
Technical field
The present invention relates to a kind of preparation method of filter tip, especially a kind of coffee baking for reducing heavy metal in flue gas content
The preparation method of fragrant filter tip further relates to filter tip made from this method, belongs to cigarette auxiliary material field.
Background technique
Country's cigarette product exists certain insufficient in terms of sucking quality and sense organ at present, as fragrance is light
It is weak, dry sensation is strong, sweet degree not enough, comfort level it is poor etc..
The prior art directly added in filter stick it is some have effects that flavouring, sweetened tax Studies of The Aromatic Substances, it is upright by perfumery is assigned
It connects in addition filter tip, is not involved in the introducing that burning is small to the destruction of effective component, avoids negatively affecting impurity component.It is added
Functional mass directly acts on flue gas, controllable known to ingredient, more direct to solidification cigarette style characteristic and enhanced products characteristic
Property and specific aim.
Toast the important component that fragrant note is cigarette flavor.In recent years, there are research and utilization zymotechnic, microbial fermentation
Technology, Maillard reaction etc. carry out flavouring to traditional red date extract, produce fragrant processing, enrich jujube to a certain extent and mention
The note for taking object increases the content of flavor component.Using the common cigarette additive such as malt extract, increase flue gas baking
It is fragrant.But the baking perfume (or spice) note of gained the said goods does not protrude, and wherein still containing a certain amount of protein, pectin,
The macromolecular substances such as polysaccharide, these substances can crack during cigarette is burnt and sucked generates some harmful components, increases cigarette smoking
Irritation and miscellaneous gas.
Only more than 40 kinds of the fragrance of green coffee itself, but its fragrance component is activated up to more than 300 kinds after roasting modulation.Such as
Coffee is used for filter stick by what, is improved the prominent fragrant note of baking on the basis of whole aesthetic quality, is worth being studied.
Summary of the invention
A kind of simple, at low cost, filter that coffee baking is fragrant is prepared in order to solve the above technical problem, the present invention provides a kind of
Mouth and preparation method thereof.The object of the invention is achieved by following technical proposal:
A kind of coffee reducing flue gas heavy metal content toasts the preparation method of fragrant filter tip, includes the following steps:
Step (1) prepares coffee baking Studies of The Aromatic Substances
1~5 part of big grain coffee, 10~60 parts of middle grain coffee and 5~50 parts of arabiancoffee are weighed by weight, then it is added 100 ~
500 parts of polyalcohols and 0.01~1 part of Nu-Iron stir evenly, wherein Nu-Iron is that Nu-Iron is
Dextrin polysaccharide iron complexes or dextran iron complexes；It is condensed back 0.5~3h under 150~250 DEG C of oil baths, is then added
The solvent supersonic of 200~2000 parts by weight extracts 10~60min, then 10~60min of concussion extraction, then is centrifuged 4~15min；
It after taking the organic membrane filtration of supernatant liquid, is evaporated under reduced pressure, solvent is removed and toasts Studies of The Aromatic Substances to get to coffee；
Step (2) prepares the fragrant filter tip of coffee baking
Above-mentioned coffee baking Studies of The Aromatic Substances is dissolved in triacetyl glycerine, the solution that mass percent is 1%~5% is configured to, after
The bodied ferric sulfate that coffee bakes 0.5~1 times of Studies of The Aromatic Substances quality is added, 20~30min is stirred at room temperature, is placed in and is protected from light shady place
Refine 24~48h, is then uniformly added in filter tow by the 2%~10% of filter tip weight to get coffee baking has been arrived
Fragrant filter tip.
Further, in step (1), big grain coffee is the big grain coffee of the big grain coffee of Greece and/or Taiwan；Middle grain coffee is
Grain coffee in Vietnam, grain coffee in India, one of grain coffee or a variety of in Hainan；Arabiancoffee be Brazilian arabiancoffee,
One or more of Jamaica's arabiancoffee, Yunnan arabiancoffee.
Further, in step (1), the polyalcohol is one or more of ethylene glycol, propylene glycol and glycerol.
Further, in step (1), the solvent is petroleum ether, n-hexane, ethyl alcohol, chloroform, methylene chloride, acetic acid
One or more of ethyl ester and methyl acetate.
The invention further relates to the obtained coffee of reduction flue gas heavy metal content of above-mentioned preparation method toast fragrant filter tip.
Compared with the existing technology, the invention has the following advantages:
(1) coffee passes through modulation of the invention, the substance that distinctive coffee toasts fragrant note can be generated, to its product using certain
Solvent targeting extraction is carried out to it, the flue gases such as macromolecular substances irritation or miscellaneous gas substance can be removed, obtain pure baking
Roasting perfume note substance, is added on filter tip, can improve the baking fragrance and suction mouthfeel of cigarette, reduce miscellaneous tolerance, mention
The comfort and harmony of high cigarette.
(2) coffee of the invention baking Studies of The Aromatic Substances is compounded with bodied ferric sulfate, and heavy metal in cigarette smoke can be effectively reduced
Content, preparation method is easy to operate, and product safety is with a wide range of applications.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.In the examples where no specific technique or condition is specified, described technology or item according to the literature in the art
Part is carried out according to product description.Reagents or instruments used without specified manufacturer is that can be obtained by purchase
Conventional products.The sensory evaluation of all embodiments is all carried out according to GB5606.4-2005.Flue gas heavy metal detects all according to GB
8451-87 is carried out.
Embodiment 1
The coffee of the reduction flue gas heavy metal content of the present embodiment toasts the preparation method of fragrant filter tip, includes the following steps:
Step (1) prepares coffee baking Studies of The Aromatic Substances
By 10 parts of grain coffee in Vietnam, 1 part of the big grain coffee of Greece, the powder of Brazilian 5 parts of arabiancoffee and 100 parts of ethylene glycol,
Round-bottomed flask, stirring is added in 0.01 part of dextrin polysaccharide iron complexes, and flask mouth connects condenser pipe, is put into oil bath heating later extremely
150 DEG C, it is condensed back 3h.
200 parts of petroleum ethers are added in above-mentioned reaction product, then ultrasonic extraction 60min shakes after extracting 60min, into
Row centrifuge separation 15min is evaporated under reduced pressure after taking the organic membrane filtration of supernatant liquid, solvent is removed to get coffee is arrived
Toast Studies of The Aromatic Substances.
Step (2) prepares the fragrant filter tip of coffee baking
1 part of above-mentioned coffee baking Studies of The Aromatic Substances is dissolved in triacetyl glycerine, the solution that mass percent is 1% is configured to, is added
20min is stirred at room temperature in 0.5 part of bodied ferric sulfate, and ingredient dissolution mixing is uniform, is placed in and is protected from light shady place alcoholization for 24 hours, so
The 2% of filter tip weight is pressed afterwards uniformly to add in filter tow to get the filter tip fragrant to coffee baking.
Above-mentioned filter tip is prepared into cigarette 1 using the tobacco leaf formulation and filter tip prepared by the present invention of 555 cigarette.By commenting
Suction shows: using after filter tip prepared by the present invention, 1 coffee of cigarette toasts note and protrudes, and irritation reduces, and comfort improves.It comments
The results are shown in Table 7 for suction.
In addition, being detected to cigarette flue gas heavy metal content, the results showed that the content of beary metal of 555 cigarette is 0.52 micro-
Gram/, 1 gained cigarette of embodiment, 1 content of beary metal be 0.10 microgram/, content of beary metal is substantially reduced.
Embodiment 2
The coffee of the reduction flue gas heavy metal content of the present embodiment toasts the preparation method of fragrant filter tip, includes the following steps:
Step (1) prepares coffee baking Studies of The Aromatic Substances
Grain coffee in grain coffee in Hainan and Vietnam is 30 parts each, 3 parts of the big grain coffee of 2 parts of the big grain coffee of Greece and Taiwan, tooth are bought
Add arabiancoffee and each 25 parts of powder of Yunnan arabiancoffee and 250 parts of propylene glycol, 1 part of addition round bottom of dextran iron complexes
Flask, stirring, flask mouth connect condenser pipe, are put into oil bath heating later to 250 DEG C, are condensed back 0.5h.
2000 parts of n-hexanes and chloroform are added in above-mentioned reaction product, wherein the volume ratio of n-hexane and chloroform is 1:
1, ultrasonic extraction 10min are centrifuged 4min, take supernatant liquid with organic membrane filtration then after concussion extraction 10min
Afterwards, it is evaporated under reduced pressure, solvent is removed and toasts Studies of The Aromatic Substances to get to coffee.
Step (2) prepares the fragrant filter tip of coffee baking
Above-mentioned coffee baking 5 parts by weight of Studies of The Aromatic Substances are dissolved in triacetyl glycerine, being configured to mass percent is 5% solution, is added
The bodied ferric sulfate for entering 5 parts by weight, is stirred at room temperature 30min, is placed in and is protected from light shady place 48 h of alcoholization, is then pressed filter tip
10% ratio uniform of weight adds the filter tip that required coffee baking perfume has been arrived in filter tow.
Above-mentioned filter tip is prepared into cigarette 2 using the tobacco leaf formulation and filter tip prepared by the present invention of seven-star cigarette.Pass through
Smoke panel test and show: after the fragrant filter tip of prepared coffee baking, 2 coffee of cigarette baking note is dense, and miscellaneous gas is reduced, harmony
Increase.Smoking result is as shown in table 7.
In addition, being detected to cigarette flue gas heavy metal content, the results showed that the content of beary metal of seven-star cigarette is 0.49
Microgram/, 2 gained cigarette of embodiment, 2 content of beary metal be 0.09 microgram/, content of beary metal is substantially reduced.
Embodiment 3
The coffee of the reduction flue gas heavy metal content of the present embodiment toasts the preparation method of fragrant filter tip, includes the following steps:
Step (1) prepares coffee baking Studies of The Aromatic Substances
Grain coffee in grain coffee in India and Hainan is 30 parts each, 2 parts of the big grain coffee in Taiwan, 18 parts of Yunnan arabiancoffee of powder
With 200 parts of glycerol, 0.1 part of addition round-bottomed flask of dextran iron complexes, stirring, flask mouth connect condenser pipe reflux, later
Oil bath heating is put into 200 DEG C, reacts 1h.
1000 parts of ethyl acetate are added in above-mentioned reaction product, then ultrasonic extraction 30min shakes after extracting 30min,
4min is centrifuged, after taking the organic membrane filtration of supernatant liquid, is evaporated under reduced pressure, solvent is removed to get institute is arrived
The coffee needed toasts Studies of The Aromatic Substances.
Step (2) prepares the fragrant filter tip of coffee baking
3 parts of above-mentioned coffee baking Studies of The Aromatic Substances are dissolved in triacetyl glycerine, being configured to mass percent is 3% solution, is added
1.5 parts of bodied ferric sulfate, is stirred at room temperature 20min, is placed in and is protected from light shady place alcoholization 40h, is then pressed filter tip weight
5% ratio uniform add in filter tow to get having arrived the fragrant filter tip of required coffee baking.
Above-mentioned filter tip is prepared into cigarette 3 using the tobacco leaf formulation and filter tip prepared by the present invention of camel cigarette.Pass through
Smoke panel test and show: after the fragrant filter tip of prepared coffee baking, 3 coffee of cigarette toasts note foot, in good taste, irritation drop
It is low.Smoking result is as shown in table 7.In addition, being detected to cigarette flue gas heavy metal content, the results showed that a huge sum of money for camel cigarette
Category content be 0.48 microgram/, 3 gained cigarette of embodiment, 3 content of beary metal be 0.12 microgram/, content of beary metal obviously drops
It is low.
Embodiment 4
The coffee of the reduction flue gas heavy metal content of the present embodiment toasts the preparation method of fragrant filter tip, includes the following steps:
Step (1) prepares coffee baking Studies of The Aromatic Substances
Grain coffee in grain coffee in Vietnam and Hainan is 24 parts each, the big grain coffee in the Taiwan and big grain coffee of Greece is 2 parts each, Yunnan is small
Grain coffee and 18 parts of Jamaica's arabiancoffee of powder, 200 parts of glycerol and 300 parts of propylene glycol, 0.9 part of dextrin polysaccharide iron complexes
Round-bottomed flask, stirring is added, flask mouth connects condenser pipe, is put into oil bath heating later to 200 DEG C of condensing reflux 1h.
1000 parts of ethyl acetate are added in above-mentioned reaction product and then 500 parts of chloroforms, ultrasonic extraction 35min shake
After extracting 30min, 6min is centrifuged, after taking the organic membrane filtration of supernatant liquid, is evaporated under reduced pressure, solvent is gone
Except toasting Studies of The Aromatic Substances to get to required coffee.
Step (2) prepares the fragrant filter tip of coffee baking
3 parts of above-mentioned coffee baking Studies of The Aromatic Substances are dissolved in triacetyl glycerine, the solution that mass percent is 3% is configured to, is added
The bodied ferric sulfate of 1.5 parts by weight, is stirred at room temperature 25min, is placed in and is protected from light shady place 30 h of alcoholization, is then pressed filter tip
5% ratio uniform of weight adds the filter tip that required coffee baking perfume has been arrived in filter tow.
Above-mentioned filter tip is prepared into cigarette 4 using the tobacco leaf formulation and filter tip prepared by the present invention of Marlboro cigarette.It is logical
Cross to smoke panel test and show: after the fragrant filter tip of prepared coffee baking, 4 coffee of cigarette toasts note foot, in good taste, irritation drop
It is low.Smoking result is as shown in table 7.In addition, being detected to cigarette flue gas heavy metal content, the results showed that a huge sum of money for camel cigarette
Category content be 0.45 microgram/, 4 gained cigarette of embodiment, 4 content of beary metal be 0.13 microgram/, content of beary metal obviously drops
It is low.
Comparative test 1
Comparative sample 1 is prepared according to method in embodiment 1, but Nu-Iron is added without in preparation process, respectively detection pair
The macromoleculars content such as protein, pectin and polysaccharide in fragrant fragrance is toasted than coffee in sample 1 and embodiment 1.As shown in Table 1, it is added
Coffee toasts the macromoleculars content such as protein, pectin and polysaccharide in fragrant fragrance and is substantially reduced after Nu-Iron.
Table 1
| Protein content % | Pectin mg/g | Polysaccharide mg/g | |
| Control 1 | 0.4% | 30 | 20 |
| Embodiment 1 | 0 | 0.1 | 0.1 |
Simultaneously according to control filter tip 1 is prepared into described in embodiment 1, using 1 middle period of embodiment group and control filter tip 1, preparation is in rolls
Cigarette compares cigarette 1.Shown by smokeing panel test: opposite 1 cigarette 1 of embodiment, control cigarette 1 have certain coffee to toast note still not
It is enough prominent, while miscellaneous gas is obvious, irritation is strong, and comfort is poor.
Comparative test 2
Comparative sample 2 is prepared according to method in embodiment 1, but Nu-Iron is changed to iron chloride in preparation process, examines respectively
It surveys coffee in comparative sample 2 and embodiment 1 and toasts the macromoleculars content such as protein, pectin and polysaccharide in fragrant fragrance.As shown in Table 2,
The macromoleculars content such as protein, pectin and polysaccharide in fragrant fragrance is toasted using coffee after Nu-Iron to be substantially reduced.
Table 2
| Protein content % | Pectin mg/g | Polysaccharide mg/g | |
| Comparative sample 2 | 0.1% | 29 | 25 |
| Embodiment 1 | 0 | 0.1 | 0.1 |
Simultaneously according to control filter tip 2 is prepared into described in embodiment 1, using 1 middle period of embodiment group and control filter tip 2, preparation is in rolls
Cigarette compares cigarette 2.Shown by smokeing panel test: opposite 1 cigarette 1 of embodiment, control cigarette 2 have certain coffee to toast note still not
It is prominent, while miscellaneous gas is obvious, irritation is strong, and comfort is poor.
Comparative test 3
Comparative sample 3 is prepared according to method in embodiment 1, but reaction temperature is 120 DEG C, detects comparative sample 3 and embodiment 1 respectively
Middle coffee toasts the macromoleculars content such as protein, pectin and polysaccharide in fragrant fragrance.As shown in Table 3, the baking of 1 coffee of embodiment is fragrant
The macromoleculars content such as protein, pectin and polysaccharide is substantially reduced in material.
Table 3
| Protein content % | Pectin mg/g | Polysaccharide mg/g | |
| Comparative sample 3 | 0.3% | 22 | 15 |
| Embodiment 1 | 0 | 0.1 | 0.1 |
Simultaneously according to control filter tip 3 is prepared into described in embodiment 1, using 1 middle period of embodiment group and control filter tip 3, preparation is in rolls
Cigarette compares cigarette 3.Shown by smokeing panel test: opposite 1 cigarette 1 of embodiment, control cigarette 3 have certain coffee to toast note still not
It is prominent, while miscellaneous gas is obvious, irritation is strong, and comfort is poor.
Comparative test 4
Comparative sample 4 is prepared according to method in embodiment 1, but solvent changes tetrahydrofuran into, detects comparative sample 4 and embodiment respectively
Coffee toasts the macromoleculars content such as protein, pectin and polysaccharide in fragrant fragrance in 1.As shown in Table 4, the baking of 1 coffee of embodiment is fragrant
The macromoleculars content such as protein, pectin and polysaccharide is substantially reduced in fragrance.
Table 4
| Protein content % | Pectin mg/g | Polysaccharide mg/g | |
| Comparative sample 4 | 0.5% | 32 | 20 |
| Embodiment 1 | 0 | 0.1 | 0.1 |
Simultaneously according to control filter tip 4 is prepared into described in embodiment 1, using 1 middle period of embodiment group and control filter tip 4, preparation is in rolls
Cigarette compares cigarette 4.Shown by smokeing panel test: opposite 1 cigarette 1 of embodiment, control cigarette 4 have certain coffee baking note but very not
It is prominent, while miscellaneous gas is obvious, irritation is strong, and comfort is poor.
Comparative test 5
Comparative sample 5 is prepared according to method in embodiment 1, but ultrasonic extraction, concussion extraction and step with centrifugal separation are changed to use
Separatory funnel carries out conventional extraction, detect respectively coffee in comparative sample 5 and embodiment 1 toast protein in fragrant fragrance, pectin and
The macromoleculars content such as polysaccharide.As shown in Table 5,1 coffee of embodiment toasts the macromoleculars such as protein, pectin and polysaccharide in fragrant fragrance and contains
Amount is substantially reduced.
Table 5
| Protein content % | Pectin mg/g | Polysaccharide mg/g | |
| Comparative sample 5 | 0.4% | 10 | 8 |
| Embodiment 1 | 0 | 0.1 | 0.1 |
Simultaneously according to control filter tip 5 is prepared into described in embodiment 1, using 1 middle period of embodiment group and control filter tip 5, preparation is in rolls
Cigarette compares cigarette 5.Shown by smokeing panel test: opposite 1 cigarette 1 of embodiment, control cigarette 5 have certain coffee baking note but do not dash forward
Out, while miscellaneous gas is slightly obvious, and irritation is strong, and comfort is slightly worse.
Comparative test 6
Comparative sample 6 is prepared according to method in embodiment 1, but bodied ferric sulfate is added without in preparation process.Simultaneously according to implementation
It is prepared into control filter tip 6 described in example 1, using 1 middle period of embodiment group and control filter tip 6, is prepared into cigarette control cigarette 6.Pass through
Smoke panel test and show: opposite 1 cigarette 1 of embodiment, control 6 coffee of cigarette baking note is prominent without cigarette 1, and comfort is slightly poor, respiratory tract
It is obvious that irritation does not have 1 electronic cigarette of embodiment to reduce.
Performance detection
Content of beary metal for compareing cigarette 1-6 detects, as a result such as table 6.
Table 6
As can be seen from Table 6, the content of beary metal of 1 product of embodiment is well below control cigarette 1-6.Meanwhile it can by comparison
To find out, each component and parameter have good synergistic effect in preparation method of the present invention.
Kinds of cigarettes sensory evaluating smoking's evaluation result in 7 embodiment 1-4 of table
As a comparison, it prepares according to method in embodiment 1, but is compounded in preparation process without using bodied ferric sulfate.It presses simultaneously
According to described in embodiment 1, using 555 board cigarette as reference examples.As can be seen from Table 1, opposite 1 cigarette 1 of embodiment, compares cigarette coffee
Coffee baking note does not protrude, and comfort is slightly poor, and respiratory tract irritation does not have the reduction of embodiment 1 obvious.It is fragrant to compare coffee baking
Rhythm is prominent, and comfort is slightly good, and respiratory tract irritation decreases, but reduces obviously without 1 electronic cigarette of embodiment.
It is compounded in embodiment 1 without using bodied ferric sulfate, volume is made in filter tip obtained in the case that other techniques are all the same
Undesirable in terms of the coordination of sensory evaluating smoking, miscellaneous gas, irritation after cigarette, especially in terms of coordinating with miscellaneous gas, effect is also less than
Reference examples, it is seen then that bodied ferric sulfate compounding effect is significant.The foregoing is merely illustrative of the preferred embodiments of the present invention, and does not have to
To limit the present invention, all within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should all be wrapped
Containing within protection scope of the present invention.
Claims (5)
1. the preparation method that a kind of coffee for reducing flue gas heavy metal content toasts fragrant filter tip, it is characterised in that: including walking as follows
It is rapid:
Step (1) prepares coffee baking Studies of The Aromatic Substances
1~5 part of big grain coffee, 10~60 parts of middle grain coffee and 5~50 parts of arabiancoffee are weighed by weight, then it is added 100 ~
500 parts of polyalcohols and 0.01~1 part of Nu-Iron stir evenly, wherein Nu-Iron is that Nu-Iron is
Dextrin polysaccharide iron complexes or dextran iron complexes；It is condensed back 0.5~3h under 150~250 DEG C of oil baths, is then added
The solvent supersonic of 200~2000 parts by weight extracts 10~60min, then 10~60min of concussion extraction, then is centrifuged 4~15min；
It after taking the organic membrane filtration of supernatant liquid, is evaporated under reduced pressure, solvent is removed and toasts Studies of The Aromatic Substances to get to coffee；
Step (2) prepares the fragrant filter tip of coffee baking
Above-mentioned coffee baking Studies of The Aromatic Substances is dissolved in triacetyl glycerine, the solution that mass percent is 1%~5% is configured to, after
The bodied ferric sulfate that coffee bakes 0.5~1 times of Studies of The Aromatic Substances quality is added, 20~30min is stirred at room temperature, is placed in and is protected from light shady place
Refine 24~48h, is then uniformly added in filter tow by the 2%~10% of filter tip weight to get coffee baking has been arrived
Fragrant filter tip.
2. preparation method according to claim 1, it is characterised in that: in step (1), big grain coffee is the big grain coffee of Greece
And/or the big grain coffee in Taiwan；Middle grain coffee be grain coffee in Vietnam, grain coffee in India, in Hainan one of grain coffee or
It is a variety of；Arabiancoffee is one or more of Brazilian arabiancoffee, Jamaica's arabiancoffee, Yunnan arabiancoffee.
3. preparation method according to claim 1, it is characterised in that: in step (1), the polyalcohol be ethylene glycol,
One or more of propylene glycol and glycerol.
4. preparation method according to claim 1, it is characterised in that: in step (1), the solvent is petroleum ether, just
One or more of hexane, ethyl alcohol, chloroform, methylene chloride, ethyl acetate and methyl acetate.
5. the coffee for the reduction flue gas heavy metal content that the preparation method of one of claim 1-4 obtains toasts fragrant filter tip.
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