CN108107167A - A kind of reagent for detecting formaldehyde in food and preparation method thereof - Google Patents
A kind of reagent for detecting formaldehyde in food and preparation method thereof Download PDFInfo
- Publication number
- CN108107167A CN108107167A CN201810116097.0A CN201810116097A CN108107167A CN 108107167 A CN108107167 A CN 108107167A CN 201810116097 A CN201810116097 A CN 201810116097A CN 108107167 A CN108107167 A CN 108107167A
- Authority
- CN
- China
- Prior art keywords
- parts
- mixture
- reagent
- food
- formaldehyde
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/02—Food
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The invention discloses a kind of reagent and preparation method thereof for detecting formaldehyde in food, include the raw material of following parts by weight：0.6 1.5 parts of 34 parts of lauryl sodium sulfate, 69 parts of oxalic acid, 8 14 parts of ginkgo leaf, 46 parts of sodium citrate, 1.5 2.4 parts of polyacrylamide, 6 10 parts of diatomite, 23 parts of sodium hypochlorite, 58 parts of glutaraldehyde, 35 parts of hexadecyltrimethylammonium chloride, 1.5 4.5 parts of chitosan and ammonium sulfate.Raw material sources of the present invention are extensive, and preparation process is simple, and the finished product of preparation can effectively be detected the formaldehyde in food, and have the characteristics that fast easy to operate, reaction speed, high sensitivity and it is water-soluble stablize good, meet the use demand of people.
Description
Technical field
The present invention relates to field of food detection, are specifically a kind of reagent for detecting formaldehyde in food.
Background technology
Formaldehyde, chemical formula are HCHO or CH2O, also known as formula weight 30.03, formaldehyde.Colourless gas have special penetrating odor,
There is stimulation to human eye, nose etc..Gas relative density 1.067（Air=1）, fluid density 0.815g/cm3（-20℃）.It is molten
- 92 DEG C of point, -19.5 DEG C of boiling point.Soluble easily in water and ethyl alcohol.The concentration of aqueous solution reaches as high as 55%, is typically 40%, is referred to as formaldehyde
Water is commonly called as formalin（formalin）, it is the colourless liquid for having penetrating odor, formaldehyde is forbidden eating for country is explicitly provided
The additive used in product must not detect in food, but all detect the presence of formaldehyde in many food in various degree, for a long time
The formaldehyde of Low Level Exposure can cause slow poisoning, cause dizzy weak, neurasthenia, mental depression and chronic respiratory disease
Deng formaldehyde is more serious to the harm of infant and pregnant woman, can cause the serious consequences such as fetal anomaly and miscarriage.
Since formaldehyde can brighten, change color and luster, therefore formaldehyde often by illegal retailer be used for fumigating or be added directly into wheaten food,
In mushroom or bean product, illegal retailer with " sodium formaldehyde sulfoxylate " fumigate related food brighten when, can also in food removing residue formaldehyde, first
The detection of aldehyde causes the attention of people, but all using acetylacetone,2,4-pentanedione, the detection of this reagent during current people's detection formaldehyde
Sensitivity is low, and reaction temperature is high, and unstable in water, it is necessary to now with the current, this just brings inconvenience for the detection of people.
The content of the invention
It is an object of the invention to provide a kind of reagent for detecting formaldehyde in food, to solve to propose in above-mentioned background technology
The problem of.
To achieve the above object, the present invention provides following technical solution：
A kind of reagent for detecting formaldehyde in food includes the raw material of following parts by weight：3-4 parts of lauryl sodium sulfate, oxalic acid 6-9
Part, 8-14 parts of ginkgo leaf, 4-6 parts of sodium citrate, 1.5-2.4 parts of polyacrylamide, 6-10 parts of diatomite, 2-3 parts of sodium hypochlorite,
0.6-1.5 parts of 5-8 parts of glutaraldehyde, 3-5 parts of hexadecyltrimethylammonium chloride, 1.5-4.5 parts of chitosan and ammonium sulfate.
As further embodiment of the present invention：Polyacrylamide uses anionic polyacrylamide, the average mark of chitosan
Son amount is 32000-44000.
As further embodiment of the present invention：Diatomaceous granularity is 50-80 mesh.
The preparation method of the reagent of the detection formaldehyde in food, is as follows：
Ginkgo leaf is cleaned, low temperature drying and removes main lobe arteries and veins, then shredded and be placed in mortar and grind by step 1, side
Grind the matter of the sodium hydroxide solution that side adds in sodium citrate and mass fraction is 25-40%, sodium citrate and sodium hydroxide solution
Amount is than being 1:4-8 is centrifuged after being ground into slurry, and supernatant is again with i.e. available first mixture of filter paper filtering；
Lauryl sodium sulfate, polyacrylamide, diatomite and glutaraldehyde are stirred, add in oxalic acid while stirring by step 2, complete
Sonic oscillation 15-25 minutes, obtains the second mixture after full addition；
Sodium hypochlorite, hexadecyltrimethylammonium chloride, chitosan and ammonium sulfate are mixed and then are immersed in quality point by step 3
When 2-3 is small in the acetum that number is 15-20%, filters and be washed with deionized water to neutrality, obtain the 3rd mixture；
First mixture, the second mixture and the 3rd mixture are stirred evenly, are then placed in and make by step 4 in sealed states
It is granulated in grain machine, you can obtain finished product.
As further embodiment of the present invention：Whipping temp is 40-50 degrees Celsius in step 4, ultrasonic wave work(in step 2
Rate is 900-1200W.
Compared with prior art, the beneficial effects of the invention are as follows：Raw material sources of the present invention are extensive, and preparation process is simple, system
Standby finished product can effectively be detected the formaldehyde in food, and with easy to operate, reaction speed is fast, high sensitivity and
Water-soluble the characteristics of having stablized, meets the use demand of people.
Specific embodiment
The technical solution of this patent is described in more detail With reference to embodiment.
Embodiment 1
A kind of reagent for detecting formaldehyde in food includes the raw material of following parts by weight：3 parts of lauryl sodium sulfate, 6 parts of oxalic acid,
8 parts of ginkgo leaf, 4 parts of sodium citrate, 1.5 parts of polyacrylamide, 6 parts of diatomite, 2 parts of sodium hypochlorite, 5 parts of glutaraldehyde, hexadecane
0.6 part of 3 parts of base trimethyl ammonium chloride, 1.5 parts of chitosan and ammonium sulfate.Polyacrylamide uses anionic polyacrylamide, shell
The average molecular weight of glycan is 32000-44000.
The preparation method of the reagent of the detection formaldehyde in food, is as follows：
Ginkgo leaf is cleaned, low temperature drying and removes main lobe arteries and veins, then shredded and be placed in mortar and grind by step 1, side
Grind the quality of the sodium hydroxide solution that side adds in sodium citrate and mass fraction is 32%, sodium citrate and sodium hydroxide solution
Than for 1:6, it is centrifuged after being ground into slurry, supernatant is again with i.e. available first mixture of filter paper filtering；
Lauryl sodium sulfate, polyacrylamide, diatomite and glutaraldehyde are stirred, add in oxalic acid while stirring by step 2, complete
Sonic oscillation 22 minutes, obtains the second mixture after full addition；
Sodium hypochlorite, hexadecyltrimethylammonium chloride, chitosan and ammonium sulfate are mixed and then are immersed in quality point by step 3
Number for 18% acetums in 2.5 it is small when, filter and be washed with deionized water to neutrality, obtain the 3rd mixture；
First mixture, the second mixture and the 3rd mixture are stirred evenly, are then placed in and make by step 4 in sealed states
It is granulated in grain machine, you can obtain finished product.
Embodiment 2
A kind of reagent for detecting formaldehyde in food includes the raw material of following parts by weight：3.3 parts of lauryl sodium sulfate, oxalic acid 7.5
Part, 10 parts of ginkgo leaf, 4.8 parts of sodium citrate, 2 parts of polyacrylamide, 7.5 parts of diatomite, 2.4 parts of sodium hypochlorite, glutaraldehyde 6
Part, 3.6 parts of hexadecyltrimethylammonium chloride, 2.5 parts of chitosan and 1 part of ammonium sulfate.Diatomaceous granularity is 60 mesh.
The preparation method of the reagent of the detection formaldehyde in food, is as follows：
Ginkgo leaf is cleaned, low temperature drying and removes main lobe arteries and veins, then shredded and be placed in mortar and grind by step 1, side
Grind the quality of the sodium hydroxide solution that side adds in sodium citrate and mass fraction is 35%, sodium citrate and sodium hydroxide solution
Than for 1:7, it is centrifuged after being ground into slurry, supernatant is again with i.e. available first mixture of filter paper filtering；
Lauryl sodium sulfate, polyacrylamide, diatomite and glutaraldehyde are stirred, add in oxalic acid while stirring by step 2, complete
Sonic oscillation 23 minutes, obtains the second mixture after full addition；
Sodium hypochlorite, hexadecyltrimethylammonium chloride, chitosan and ammonium sulfate are mixed and then are immersed in quality point by step 3
Number for 20% acetums in 3 it is small when, filter and be washed with deionized water to neutrality, obtain the 3rd mixture；
First mixture, the second mixture and the 3rd mixture are stirred evenly, are then placed in and make by step 4 in sealed states
It is granulated in grain machine, you can obtain finished product.
Embodiment 3
A kind of reagent for detecting formaldehyde in food includes the raw material of following parts by weight：3.8 parts of lauryl sodium sulfate, oxalic acid 8
Part, 13 parts of ginkgo leaf, 5.5 parts of sodium citrate, 2.2 parts of polyacrylamide, 9 parts of diatomite, 2.8 parts of sodium hypochlorite, glutaraldehyde 7
Part, 4.5 parts of hexadecyltrimethylammonium chloride, 4 parts of chitosan and 1.2 parts of ammonium sulfate.Polyacrylamide uses anion poly- third
Acrylamide, the average molecular weight of chitosan is 32000-44000.
The preparation method of the reagent of the detection formaldehyde in food, is as follows：
Ginkgo leaf is cleaned, low temperature drying and removes main lobe arteries and veins, then shredded and be placed in mortar and grind by step 1, side
Grind the quality of the sodium hydroxide solution that side adds in sodium citrate and mass fraction is 36%, sodium citrate and sodium hydroxide solution
Than for 1:7, it is centrifuged after being ground into slurry, supernatant is again with i.e. available first mixture of filter paper filtering；
Lauryl sodium sulfate, polyacrylamide, diatomite and glutaraldehyde are stirred, add in oxalic acid while stirring by step 2, complete
It is complete add in after with 1100W sonic oscillations 25 minutes, obtain the second mixture；
Sodium hypochlorite, hexadecyltrimethylammonium chloride, chitosan and ammonium sulfate are mixed and then are immersed in quality point by step 3
Number for 20% acetums in 3 it is small when, filter and be washed with deionized water to neutrality, obtain the 3rd mixture；
Step 4 stirs evenly the first mixture, the second mixture and the 3rd mixture under sealing state and 46 degrees Celsius,
It is then placed in comminutor and is granulated, you can obtain finished product.
Embodiment 4
A kind of reagent for detecting formaldehyde in food includes the raw material of following parts by weight：4 parts of lauryl sodium sulfate, 9 parts of oxalic acid,
14 parts of ginkgo leaf, 6 parts of sodium citrate, 2.4 parts of polyacrylamide, 10 parts of diatomite, 3 parts of sodium hypochlorite, 8 parts of glutaraldehyde, 16
1.5 parts of 5 parts of alkyl trimethyl ammonium chloride, 4.5 parts of chitosan and ammonium sulfate.Polyacrylamide uses anionic polyacrylamide,
The average molecular weight of chitosan is 32000-44000.Diatomaceous granularity is 80 mesh.
The preparation method of the reagent of the detection formaldehyde in food, is as follows：
Ginkgo leaf is cleaned, low temperature drying and removes main lobe arteries and veins, then shredded and be placed in mortar and grind by step 1, side
Grind the quality of the sodium hydroxide solution that side adds in sodium citrate and mass fraction is 30%, sodium citrate and sodium hydroxide solution
Than for 1:8, it is centrifuged after being ground into slurry, supernatant is again with i.e. available first mixture of filter paper filtering；
Lauryl sodium sulfate, polyacrylamide, diatomite and glutaraldehyde are stirred, add in oxalic acid while stirring by step 2, complete
It is complete add in after with 1200W sonic oscillations 18 minutes, obtain the second mixture；
Sodium hypochlorite, hexadecyltrimethylammonium chloride, chitosan and ammonium sulfate are mixed and then are immersed in quality point by step 3
Number for 18% acetums in 2.5 it is small when, filter and be washed with deionized water to neutrality, obtain the 3rd mixture；
Step 4 stirs evenly the first mixture, the second mixture and the 3rd mixture under sealing state and 50 degrees Celsius,
It is then placed in comminutor and is granulated, you can obtain finished product.
The product of 1-4 of the embodiment of the present invention can effectively be detected the formaldehyde in food, and with it is easy to operate,
Reaction speed is fast, high sensitivity and water-soluble the advantages of having stablized.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requirement rather than above description limit, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims
Variation is included within the present invention.
Moreover, it will be appreciated that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
Using specification as an entirety, the technical solutions in each embodiment can also be properly combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (5)
1. a kind of reagent for detecting formaldehyde in food, which is characterized in that include the raw material of following parts by weight：Lauryl sodium sulfate
3-4 parts, 6-9 parts of oxalic acid, 8-14 parts of ginkgo leaf, 4-6 parts of sodium citrate, 1.5-2.4 parts of polyacrylamide, 6-10 parts of diatomite,
2-3 parts of sodium hypochlorite, 5-8 parts of glutaraldehyde, 3-5 parts of hexadecyltrimethylammonium chloride, 1.5-4.5 parts of chitosan and ammonium sulfate
0.6-1.5 parts.
2. the reagent of detection formaldehyde in food according to claim 1, which is characterized in that the polyacrylamide is using cloudy
Cationic polyacrylamide, the average molecular weight of chitosan is 32000-44000.
3. the reagent of detection formaldehyde in food according to claim 1, which is characterized in that the diatomaceous granularity is
50-80 mesh.
A kind of 4. preparation method of the reagent of detection formaldehyde in food as described in claim 1-3 is any, which is characterized in that tool
Body step is as follows：
Ginkgo leaf is cleaned, low temperature drying and removes main lobe arteries and veins, then shredded and be placed in mortar and grind by step 1, side
Grind the matter of the sodium hydroxide solution that side adds in sodium citrate and mass fraction is 25-40%, sodium citrate and sodium hydroxide solution
Amount is than being 1:4-8 is centrifuged after being ground into slurry, and supernatant is again with i.e. available first mixture of filter paper filtering；
Lauryl sodium sulfate, polyacrylamide, diatomite and glutaraldehyde are stirred, add in oxalic acid while stirring by step 2, complete
Sonic oscillation 15-25 minutes, obtains the second mixture after full addition；
Sodium hypochlorite, hexadecyltrimethylammonium chloride, chitosan and ammonium sulfate are mixed and then are immersed in quality point by step 3
When 2-3 is small in the acetum that number is 15-20%, filters and be washed with deionized water to neutrality, obtain the 3rd mixture；
First mixture, the second mixture and the 3rd mixture are stirred evenly, are then placed in and make by step 4 in sealed states
It is granulated in grain machine, you can obtain finished product.
5. the preparation method of the reagent of detection formaldehyde in food according to claim 4, which is characterized in that the step 4
Middle whipping temp is 40-50 degrees Celsius, and ultrasonic power is 900-1200W in step 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810116097.0A CN108107167A (en) | 2018-02-06 | 2018-02-06 | A kind of reagent for detecting formaldehyde in food and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810116097.0A CN108107167A (en) | 2018-02-06 | 2018-02-06 | A kind of reagent for detecting formaldehyde in food and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108107167A true CN108107167A (en) | 2018-06-01 |
Family
ID=62221823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810116097.0A Pending CN108107167A (en) | 2018-02-06 | 2018-02-06 | A kind of reagent for detecting formaldehyde in food and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108107167A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108760726A (en) * | 2018-08-14 | 2018-11-06 | 山东五洲检测有限公司 | A kind of reagent and preparation method thereof of detection formaldehyde in food |
-
2018
- 2018-02-06 CN CN201810116097.0A patent/CN108107167A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108760726A (en) * | 2018-08-14 | 2018-11-06 | 山东五洲检测有限公司 | A kind of reagent and preparation method thereof of detection formaldehyde in food |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102524410B (en) | Preparation method of soybean milk | |
| CN108107167A (en) | A kind of reagent for detecting formaldehyde in food and preparation method thereof | |
| CN110003875B (en) | Slow-release liquid-carrying sand-carrying foam discharging agent and preparation method thereof | |
| JP2005513298A (en) | Plant protein synthetic fiber and method for producing the same | |
| CN104625087A (en) | Method for hydrothermally manufacturing silver nanowires | |
| CN106117377A (en) | A kind of preparation method of curing carbaminate modified tapioca starch chelating agen and products thereof | |
| CN106800584B (en) | The method of protein is recycled from Dai Yu Yu Porridge rinsing liquid | |
| CN104327129A (en) | Method for preparing glucosamine hydrochloride by taking crab shells as raw materials | |
| CN102153537A (en) | Heliotropin decolorizer and preparation method of heliotropin | |
| CN102718874B (en) | Method for preparing methyl cellulose ether with arundodomax dissolving pulp serving as raw material | |
| CN103315127A (en) | Method for preparing casing by extracting offal collagen corpus fibrosum of aquatic product | |
| TW583190B (en) | Purified chitins and production process thereof | |
| CN104193719A (en) | Preparation method for 3,4-methylene dioxy mandelic acid | |
| CN104286829A (en) | Preparation method of mushroom instant preparation | |
| JPH1085759A (en) | Preparation of purifying agent for sterilization | |
| CN113185711A (en) | Preparation method of acidic, neutral and alkaline stable dispersed nano chitin | |
| CN108760726A (en) | A kind of reagent and preparation method thereof of detection formaldehyde in food | |
| CN108287159A (en) | A kind of chemical reagent and preparation method thereof for formaldehyde in food detection | |
| JPS61190598A (en) | Cosmetic soap and its production | |
| CN106636275A (en) | Method for extracting proteins in sipunculus nudus | |
| RU2013149559A (en) | METHOD FOR PROCESSING UNDERGROUND LAYERS | |
| CN107714735A (en) | Using the method for the autoclaving method production prepared slices of Chinese crude drugs | |
| KR101226443B1 (en) | Method for making Dotorimuk | |
| RU1821471C (en) | Process for preparing chitosan | |
| US1691345A (en) | Decolorization of alkaline-earth-metal thiocyanate solutions |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180601 |