CN105498484B - A kind of preparation method of plant polyphenol formaldehyde catching agent - Google Patents
A kind of preparation method of plant polyphenol formaldehyde catching agent Download PDFInfo
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- CN105498484B CN105498484B CN201610017064.1A CN201610017064A CN105498484B CN 105498484 B CN105498484 B CN 105498484B CN 201610017064 A CN201610017064 A CN 201610017064A CN 105498484 B CN105498484 B CN 105498484B
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- plant polyphenol
- formaldehyde
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/72—Organic compounds not provided for in groups B01D53/48 - B01D53/70, e.g. hydrocarbons
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/702—Hydrocarbons
- B01D2257/7022—Aliphatic hydrocarbons
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/06—Polluted air
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/12—Methods and means for introducing reactants
- B01D2259/124—Liquid reactants
Abstract
A kind of preparation method of plant polyphenol formaldehyde catching agent, including：Fresh tea leaf frozen drying is dehydrated；Tealeaves is crushed to 10~20 mesh, loads bag for extracting, is placed in closed extractor, is evacuated to 0.1MPa, be passed through 95% methanol and carry out 1~2h of extraction, obtain extract solution；The extract solution is transferred to vacuum concentration pot, is evaporated under reduced pressure at 60 DEG C, obtains polyphenol concentrate；The polyphenol concentrate is dehydrated, vacuum 0.1MPa is controlled, temperature 60 C, obtains plant polyphenol dry powder；Plant polyphenol dry powder is dissolved in 1% glycerin solution, is configured to storing solution；Configuration auxiliary liquid；By the storing solution and auxiliary liquid by volume 1:1 mixing, produces product.The present invention is simple and easy, prepares that cost is low, and non-secondary pollution, Environmental Safety is efficient, and the plant polyphenol of extract is not destroyed, not aoxidized, preferably retains the bioactivity of extract.
Description
Technical field
Present invention relates particularly to a kind of preparation method of plant polyphenol formaldehyde catching agent.
Background technology
Formaldehyde is a kind of organic matter of effumability, and its boiling point is -19.5 DEG C, is gaseous state under normal temperature, is that one kind has stimulation
The colourless gas of smell, soluble in water and ethanol.Formaldehyde is noxious material, is defined as carcinogenic and teratogenesis by the World Health Organization
Property material.
Formaldehyde is the main component of various adhesives ubiquitous in building materials, decoration, finishing, furniture, is not had in adhesive
There are the formaldehyde for participating in reacting, or adhesive deuterogenesis degraded, can all produce free formaldehyde, evaporate into air, be formed
The formaldehyde pollution of room air.It can be combined after human body takes in formaldehyde with the amino in protein, make protein denaturation so as to make
The injury of paired human body.Injury of the formaldehyde to human body is many, and high-concentration formaldehyde is to nervous system, immune system, liver
Deng also toxic.Formaldehyde pollution is one of major pollutants of room air pollution, since it was recognized that Formaldehyde Pollution of Indoor Air
Seriousness, begin to be directed to the research of Treatment of Indoor Formaldehyde Pollution.The Treatment process master of recent domestic formaldehyde pollution
Take medical method, catalyzed conversion (photocatalyst decomposition), plasma cleaning, ventilation method, charcoal absorption, anion net
The methods of change, ozone purification and combinations thereof technology, administers indoor pollutant, is people to reduce indoor air pollutants concentration
Create health living space.But due to formaldehyde pollution source is various, micro accumulation, it is long-term lasting the features such as, cause a lot
Administering method has certain limitation.Secondary pollution can be caused as chemical-agent technique is handled, physical absorption absorption method is only
Formaldehyde is transferred on another carrier, does not remove formaldehyde etc. fundamentally, and biodegradation method can be by formaldehyde
Nontoxic material is really changed into, is most effective, safest method.
At present, many plant extracts are proved to the ability with certain conversion formaldehyde, can prepare methanal trapping agent, still
Most of degradation efficiency is low, or prepare formaldehyde biodegradation agent cost it is higher, so its application be very limited.Application number
A kind of formaldehyde biodegradation agent and preparation method thereof is disclosed for 201110054640.7 Chinese invention patent, the method obtains
Formaldehyde biodegradation agent degradation of formaldehyde it is efficient rapidly, but Spawn incubation complex operation, the formaldehyde biodegradation agent cost of making
It is high.The B of Application No. CN 103083852 Chinese invention patent discloses a kind of formaldehyde biodegradation agent and preparation method thereof,
Its preparation method is to be coordinated using the arabidopsis extract of formaldehyde environment culture and other auxiliary agents, obtains formaldehyde biodegradation
Agent, the formaldehyde biodegradation agent degradation of formaldehyde that the method obtains is efficient rapidly, but the culture complex operation of arabidopsis, and extracts
Purifying process is complicated, quantifies to produce extremely difficult, the formaldehyde biodegradation agent cost height of making.Application No.
201110123805.1 Chinese invention patent discloses a kind of formaldehyde remover, and it is formed by folium artemisiae argyi through crushing, and is a kind of pure
Natural plants product, achieved the goal by effects such as the effective ingredient sterilizations, absorption, shielding of object volatile oil, so that will not
Generation harm and infringement to human body, household apparatus, office accommodation, ornament, have pure natural, low cost, using simple, no
There can be the advantages of secondary pollution to air.But this formaldehyde remover soak time length, absorption efficiency are low, it is difficult to industrial metaplasia
Production.
Plant polyphenol has good response characteristic with formaldehyde, and formaldehyde can be quickly converted to stable innocuous substance, different
Extracting method obtained by product and formaldehyde reactivity it is widely different.The most frequently used extracting method of plant polyphenol, be
Under aerobic conditions, extracted using the extraction of heating water or alcohol water mixed solvent under normal pressure, to plant polyphenol in whole preparation process
Active component causes a certain degree of destruction.
The content of the invention
The technical problem to be solved in the present invention, it is to provide a kind of preparation method of plant polyphenol formaldehyde catching agent.
What the present invention was realized in：A kind of preparation method of plant polyphenol formaldehyde catching agent, comprises the following steps：
(1) plucking fresh tea leaf, it is dehydrated using frozen drying to moisture content and is less than 10%；
(2) dried tealeaves is carried out being crushed to 10~20 mesh, takes the tealeaves 1kg after crushing to load bag for extracting, be placed in
In closed stainless steel extractor, close and be evacuated to -0.1MPa, using negative pressure toward being passed through 95% methanol in extractor to complete
Full submergence tealeaves, extracting operation being carried out, control pressure is 0.2~0.5MPa, and temperature is 70~80 DEG C, and extraction time is 1~2h,
Obtain extract solution；
(3) extract solution is transferred to vacuum concentration pot, be evaporated under reduced pressure at 60 DEG C, reclaim methanol, obtain polyphenol concentration
Liquid；
(4) the polyphenol concentrate is dehydrated with vacuum drying chamber, controls vacuum -0.1MPa, heating temperature
60 DEG C of degree, obtains plant polyphenol dry powder；
(5) plant polyphenol dry powder is dissolved in 1% glycerin solution, being configured to the mass percent containing plant polyphenol is
10% storing solution, it is standby；
(6) configuration auxiliary liquid, the auxiliary liquid include each component of following mass percent：It is triethanolamine 0.2%, water-soluble
Property azone 0.2% and sodium benzoate 0.6%；
(7) by the storing solution and auxiliary liquid by volume 1:1 mixing, produces plant polyphenol formaldehyde catching agent.
Further, in the step (2), 5~8kg 95% methanol is added per 1kg tealeaves.
The advantage of the invention is that：Subcritical methanol is used to extract plant polyphenol from tealeaves dry powder for extractant, entirely
Technical process is completed under starvation and lower temperature conditions, reduces the loss of phenolic hydroxyl group, institute in preparation process as far as possible
Obtained product preferably remains the functional active components in plant polyphenol, has good reactivity with formaldehyde, is a kind of
Especially suitable for the high-activity natural plant polyphenol of methanal trapping, formaldehyde can be quickly converted into stable innocuous substance, rapidly,
Thorough degradation of formaldehyde, and the preparation method of the present invention is simple and easy, preparation cost is low, and non-secondary pollution, Environmental Safety is efficient, right
The plant polyphenol of extract is not destroyed, not aoxidized, and can preferably retain the bioactivity of extract, and product is easy to and extracted molten
Agent separates, and product yield is high；Production run cost is low, and extraction efficiency is high, and large-scale production can be achieved.
Embodiment
Embodiment 1
A kind of preparation method of plant polyphenol formaldehyde catching agent, comprises the following steps：
Step 1：Fresh tealeaves is plucked, is less than 10% using frozen drying to moisture content；
Step 2：Dried tealeaves is carried out to be crushed to 10~20 mesh, takes broken rear tealeaves 1kg to load bag for extracting, is placed in
In closed stainless steel extractor, close and be evacuated to -0.1MPa, using negative pressure toward being passed through 95% methanol 5kg in extractor,
Extracting operation is carried out, control pressure is 0.2~0.5MPa, and temperature is 70 DEG C, extraction time 1h, obtains extract solution；
Step 3：Said extracted liquid is transferred to vacuum concentration pot, is evaporated under reduced pressure at 60 DEG C, methanol is reclaimed, it is dense to obtain polyphenol
Contracting liquid；
Step 4：Above-mentioned concentrate is dehydrated with vacuum drying chamber, controls vacuum -0.1MPa, heating-up temperature
60 DEG C, that is, obtain plant polyphenol dry powder 102.5g.
Step 5：Take obtained plant polyphenol dry powder to be dissolved in 1% glycerin solution, be configured to plant polyphenol content
It is standby for 10% storing solution；
Step 6：Auxiliary liquid is prepared, the auxiliary liquid includes the component of following mass concentration：It is triethanolamine 0.2%, water-soluble
Property azone 0.2%, sodium benzoate 0.6%；
Step 7：Plant polyphenol storing solution and auxiliary liquid are pressed 1:1 is mixedly configured into mixed liquor, produces plant polyphenol formaldehyde
Agent for capturing.
Embodiment 2
A kind of preparation method of plant polyphenol formaldehyde catching agent, comprises the following steps：
Step 1：Fresh tealeaves is plucked, is less than 10% using frozen drying to moisture content；
Step 2：Dried tealeaves is carried out to be crushed to 10~20 mesh, takes broken rear tealeaves 1kg to load bag for extracting, is placed in
In closed stainless steel extractor, close and be evacuated to -0.1MPa, using negative pressure toward being passed through 95% methanol in extractor
6.5kg, extracting operation is carried out, control pressure is 0.2~0.5MPa, and temperature is 80 DEG C, after extraction time is 2h, is extracted
Liquid；
Step 3：Said extracted liquid is transferred to vacuum concentration pot, is evaporated under reduced pressure at 60 DEG C, methanol is reclaimed, it is dense to obtain polyphenol
Contracting liquid；
Step 4：Above-mentioned concentrate is dehydrated with vacuum drying chamber, controls vacuum -0.1MPa, heating-up temperature
60 DEG C, that is, obtain plant polyphenol dry powder 113.3g.
Step 5：Take obtained plant polyphenol dry powder to be dissolved in 1% glycerin solution, be configured to plant polyphenol content
It is standby for 10% storing solution；
Step 6：Auxiliary liquid is prepared, the auxiliary liquid includes the component of following mass concentration：It is triethanolamine 0.2%, water-soluble
Property azone 0.2%, sodium benzoate 0.6%；
Step 7：Plant polyphenol storing solution and auxiliary liquid are pressed 1:1 is mixedly configured into mixed liquor, produces plant polyphenol formaldehyde
Agent for capturing.
Analysis of experiments is carried out to the function of plant polyphenol formaldehyde catching agent made from above-described embodiment
1. following is the functional analysis experiment that plant polyphenol formaldehyde catching agent eliminates formaldehyde in air pollution in embodiment 1：
A well and formaldehyde gas detection hole are installed additional in a volume is 300L growth cabinets, control artificial gas
It is 25 DEG C to wait temperature, formaldehyde vapor is passed through into well, with 4160 type formaldehyde tester continuous monitoring growth cabinets
Concentration of formaldehyde.Reach certain initial concentration rear enclosed well when being passed through formaldehyde gas.Plant polyphenol formaldehyde catching agent is steamed
Distilled water dilutes 3 times, takes the 50mL dilutions to add in a vaporizer, is eliminated respectively using distilled water as blank control
Formaldehyde in air test for contamination.
It is respectively 0.3mg/m3,0.6mg/m3,0.9mg/m3,1.2mg/m3 to control initial concentration of formaldehyde.Continue to monitor
90min, it the results are shown in Table 1.
The plant polyphenol formaldehyde catching agent of table 1 removes formaldehyde in air result of the test
Test result indicates that plant polyphenol formaldehyde catching agent can quickly, effectively eliminate the formaldehyde in air.
The present invention uses subcritical methanol to extract plant polyphenol from tealeaves dry powder for extractant, whole technical process be
Completed under starvation and lower temperature conditions, resulting product preferably remain functional activity in plant polyphenol into
Point, formaldehyde can be quickly converted into stable innocuous substance, rapid, thorough degradation of formaldehyde, and the preparation method of the present invention is simple
It is easy, prepare that cost is low, and non-secondary pollution, Environmental Safety is efficient, the plant polyphenol of extract is not destroyed, not aoxidized, can be with
Preferably retain the bioactivity of extract, product is easy to separate with Extraction solvent, and product yield is high；Production run cost is low,
Extraction efficiency is high, and large-scale production can be achieved.
Claims (2)
- A kind of 1. preparation method of plant polyphenol formaldehyde catching agent, it is characterised in that：Comprise the following steps：(1) plucking fresh tea leaf, it is dehydrated using frozen drying to moisture content and is less than 10%；(2) dried tealeaves is carried out being crushed to 10~20 mesh, takes the tealeaves 1kg after crushing to load bag for extracting, be placed in closed Stainless steel extractor in, close and be evacuated to -0.1MPa, 95% methanol is passed through into extractor to being totally submerged tealeaves, Extracting operation is carried out, control pressure is 0.2~0.5MPa, and temperature is 70~80 DEG C, and extraction time is 1~2h, obtains extract solution；(3) extract solution is transferred to vacuum concentration pot, be evaporated under reduced pressure at 60 DEG C, obtain polyphenol concentrate；(4) the polyphenol concentrate is dehydrated with vacuum drying chamber, controls vacuum -0.1MPa, heating-up temperature 60 DEG C, obtain plant polyphenol dry powder；(5) plant polyphenol dry powder is dissolved in 1% glycerin solution, is configured to the mass percent containing plant polyphenol as 10% Storing solution, it is standby；(6) configuration auxiliary liquid, the auxiliary liquid include each component of following mass percent：Triethanolamine 0.2%, water-soluble nitrogen Ketone 0.2% and sodium benzoate 0.6%；(7) by the storing solution and auxiliary liquid by volume 1:1 mixing, produces plant polyphenol formaldehyde catching agent.
- A kind of 2. preparation method of plant polyphenol formaldehyde catching agent as claimed in claim 1, it is characterised in that：The step (2) in, 5~8kg 95% methanol is added per 1kg tealeaves.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610017064.1A CN105498484B (en) | 2016-01-12 | 2016-01-12 | A kind of preparation method of plant polyphenol formaldehyde catching agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610017064.1A CN105498484B (en) | 2016-01-12 | 2016-01-12 | A kind of preparation method of plant polyphenol formaldehyde catching agent |
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| CN105498484A CN105498484A (en) | 2016-04-20 |
| CN105498484B true CN105498484B (en) | 2018-01-09 |
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Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1194051C (en) * | 2003-06-18 | 2005-03-23 | 清华大学 | Volatile organic matter trapping agent prepn |
| WO2010132776A1 (en) * | 2009-05-14 | 2010-11-18 | Rutgers, The State University Of New Jersey | Oregano and mint anti-inflammatory compositions and methods |
| CN104415169A (en) * | 2013-08-25 | 2015-03-18 | 刘宜霞 | Black tea extract |
| CN103992359A (en) * | 2014-05-08 | 2014-08-20 | 梁树钦 | Preparation process for extracting green tea polyphenols from tea |
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Address after: 350001 storefront, 1st floor, 1st floor, Jinting Apartment, No. 1 Yuquan Road, Hot Spring Street, Gulou District, Fuzhou City, Fujian Province Patentee after: Fujian Zhongtian Environmental Protection Technology Co., Ltd. Address before: 350013 Jinting Apartment, No. 1 Yuquan Road, Hot Spring Street, Gulou District, Fuzhou City, Fujian Province Patentee before: FUZHOU ZHONGTIAN ENVIRONMENT PROTECTION TECHNOLOGY CO., LTD. |
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