CN208636203U - Portable milk protein content detection device - Google Patents
Portable milk protein content detection device Download PDFInfo
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- CN208636203U CN208636203U CN201820195633.6U CN201820195633U CN208636203U CN 208636203 U CN208636203 U CN 208636203U CN 201820195633 U CN201820195633 U CN 201820195633U CN 208636203 U CN208636203 U CN 208636203U
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Abstract
The utility model discloses a kind of portable milk protein content detection devices, belong to composition detection field.The technical issues of solution, is to provide a kind of milk protein content detection device quickly, easy, inexpensive.Composed structure includes display screen, main control module, light source switch, main control module switch, lithium battery, USB charge port, light source, cooling fin, heat emission fan, shade, cell holder, light intensity detection module, push-and-pull lid, shell, pedestal.After the light transmission milk sample excessively to be detected that light source issues, light intensity detection module receives transmitted light and sends transmission illuminance (lx) to main control module, and the main control module will obtain protein content (%) numerical value of the sample and show on a display screen after data processing.The utility model is at low cost, can simply and quickly detect milk protein content.
Description
Technical field
The utility model relates to composition detection fields, and in particular, to a kind of portable milk protein content detection dress
It sets.
Background technique
The content of protein determines the height of milk quality.Protein content be measure milk quality important indicator it
One, and the key for how accurately and rapidly detecting the protein content in milk as urgent need to resolve in field of food detection is asked
One of topic.
Currently, the main method for being usually used in detecting protein content in foodstuff has: Kjeldahl's method, biuret method, ultraviolet
Absorption process, Folin-Phenol colorimetric method, Coomassie Brilliant Blue dye colorimetric method, fuel-bound method, salicylic acid colorimetry, infra-red sepectrometry,
Turbidimetry, Dumas combustion etc..These methods are not only cumbersome, at high cost, and need technical professional and specially
The equipment of industry.More importantly detector required for these methods is all more expensive.For example, Kjeldahl's method needs automatically
Or automanual kjeldahl apparatus, ultraviolet absorption method need ultraviolet light spectrophotometer, infra-red sepectrometry needs expensive
Infrared spectrometer etc..Other than the detector of these general detection Protein in Food, in order to rapidly detect
Protein content in milk, some companies also devise some milk constituents fast detectors, such as produced in USA
SprintTM type protein detection instrument, the testing principle of the instrument are to rely on the colour fading colorimetric in protein content quantitative detection
The protein content detection range of method, the detector is 0.02% ~ 99.98%, detection sensitivity 0.02%, the time required to detection
As long as most short 2min, market price is about 70,000 dollars；The Primacs-SN type Dumars burning of Dutch Skalar company production
Type azotometer has the characteristics that detection is rapid, detection sensitivity is high, fully automatic operation, and detects and be discharged without waste liquid exhaust gas, can
To realize pollution-free non-hazardous detection, the protein detection instrument of the model is offered in the domestic market between 30 ~ 400,000 yuan；
TD-N10 protein Quick testing instrument is a kind of protein detection instrument that Beijing is produced with moral foundation Science and Technology Ltd., and detection is every
A sample needs 5 ~ 10min, 360 × 300 × 125(mm of size), size and detection time are bigger than normal；Domestic Jilin cygnet point
Analyzer Co., Ltd GDYN-150S type protein quick analytic instrument, detector test sample time-consuming need 10min, protein
Between the detection range 0.4% ~ 75% of concentration, between market price 6 ~ 80,000 yuan.Although these instruments can quickly detect milk
Middle protein content, but it is expensive, and can only be used for laboratory or scientific research institution.
China Patent Publication No. CN201569625U, publication date on 09 01st, 2010, the entitled " hatching egg of utility model
White matter detecting instrument ", that application discloses " a kind of protein detection instrument, microprocessor (5) are controlled by signal and amplify mould
Block (4) is connect with light source (1), detector (3) respectively；The light transmission that light source (1) issues is crossed colorimetric pool (2) and is examined by detector (3)
Survey, the signal that detector (3) will test is sent to microprocessor (5) through signal control with amplification module (4), signal control with
Amplification module (4) controls light source (1), and microprocessor (5) is connect with display module (8), printer (6) and key (7) respectively；Than
Color bottle is located in colorimetric pool (2), and colorimetric bottle is prolate cube." by the patent technical problems to be solved: " provide a kind of albumen
Quality detection instrument, apparatus structure is small and exquisite, easy to carry；It can be widely applied for base and the need that live dairy produce quickly detects
It wants." learn, which is not carried out a kind of compact structure of given protein detection instrument, feature easy to carry, no
Can determine that whether it can be widely applied for base and the dairy produce at scene quickly detects.
China Patent Publication No. CN101718790A, publication date on 06 02nd, 2010, a kind of entitled " protein
Detection reagent, detection method and detecting instrument ", that application discloses " the invention discloses a kind of detection reagent of protein,
Detection method and detecting instrument, the reagent take 0.1~10 part of acid orange -12 to be dissolved in 1~500 part with weight percent
In phosphate buffer solution, 1~500 part of glacial acetic acid is added, is finally diluted with 1~5000 part of water, oscillation mixing then obtains
The detection reagent of the protein.True protein content can effectively be detected by being compared with the traditional method it, can be wider
Carry out the detection of protein in range, the not standard of Interference Detection substantially such as non-protein nitrogenous constituents such as urea, melamine
True property.Apparatus structure of the invention is small and exquisite, easy to carry.The dairy produce that can be widely applied for base and scene quickly detects
It needs." patent the technical problem to be solved is that: " detection reagent, method and detecting instrument of a kind of protein are provided, it
It can detecte out the true protein detection in the sample containing protein, the interference for avoiding nonprotein nitrogen and conventional method are to difference
The problem of property and protein species quantitative result inaccuracy." disadvantage is that detection protein content exploitativeness compared with
Difference does not provide the physical relationship between protein content and known variables.
Although in conclusion Current Domestic outside be used to detect milk instrument can rapidly provide milk it is a variety of at
Point, but operating process is not only cumbersome, time-consuming, but also is only used for laboratory testing or scientific research institution's use, needs
Want technical professional, it is often more important that instrument price is still costly.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of portable cow milk proems quickly, easy, inexpensive
Matter content detection device.
The utility model is achieved through the following technical solutions:
Portable milk protein content detection device, composed structure include shell, pedestal, heat release hole, display screen, push-and-pull
Lid, battery case, cooling fin, heat emission fan, radiator pedestal, light source, shade, cuvette, cell holder, light-intensity test mould
Block, cell holder sliding rail, main control module, USB charge port, baffle, main control module switch, light source switch, colorimetric ware lid, lithium electricity
Pond, push-and-pull lid sliding rail, the main control module respectively with the display screen, the heat emission fan, the light source, the light-intensity test mould
Block, the lithium battery are connected, and the USB charge port is connected with the lithium battery；The housing top surface is an inclined ramp, and
Inside top surface is provided with the push-and-pull lid sliding rail, and the push-and-pull lid is slidably mounted in the push-and-pull lid sliding rail, can slide, with
Just it is placed and taken out the cuvette；The baffle is fixedly mounted on the housing；The case inside face is equipped with described
Main control module, the main control module switch and light source switch installation are on the housing；The lithium battery, the heat dissipation
Piece, the heat emission fan, the radiator pedestal, the shade and the cell holder sliding rail are fixedly mounted on the pedestal
It is interior；The light source is mounted on the cooling fin；The cell holder is fixedly mounted on the cell holder sliding rail, and is close to
The shade；The light intensity detection module is fixedly mounted on the cell holder；The case inside surface carries out
Shading treatment；The light that the light intensity detection module obtains is transmitted light；The case inside surface has one layer of masking foil, carries out
Shading treatment；The shade color is black, and outer surface simultaneously has masking foil；The light wave that the light source issues is a length of
595nm；After the light transmission milk sample excessively to be detected that light source issues, light intensity detection module receives transmitted light and shines transmitted light
Degree (lx) sends main control module to, and the main control module will obtain protein content (%) numerical value of the sample simultaneously after data processing
Display is on a display screen.
The testing principle of the utility model is the physical detection methods of Coomassie brilliant blue colorimetric method, Coomassie brilliant G-250
Hydrophobic grouping in dyestuff has affinity with the thin microcell of protein under the conditions of acid (phosphorus), passes through hydrophobic effect and albumen
Matter combines, and the mixed solution after reaction has maximum absorbance, the light transmission milk excessively to be detected that light source issues at 595nm
After sample, illuminance detection module receives transmitted light and sends transmission illuminance (lx) to main control module, to transmission illuminance
(lx) it is modeled with protein content (%), transmitted light illumination (lx) and protein is substituted into after the main control module data processing
The mathematical model of content (%) obtains protein content (%) numerical value of the sample and shows on the display screen, the mathematical modulo
Type are as follows:, whereinIt is transmission illuminance (lx),It is protein content (%).
Compared with prior art, the utility model has the beneficial effects that
A. small volume, cheap, structure is simple, and the testing time only needs 1s, easy to operate, can be used for live inspection
The milk protein content of survey；
B. the mathematical relationship of transmission illuminance and protein content is specified, the utility model has exploitativeness.
Appended drawing reference
1. shell；2. pedestal；3. heat release hole；4. display screen；5. push-and-pull lid；6. battery case；7. cooling fin；8. heat emission fan；
9. radiator pedestal；10. light source；11. shade；12. cuvette；13. cell holder；14. light intensity detection module；15. ratio
Color ware seat sliding rail；16. main control module；17.USB charge port；18. baffle；19.M2 threaded hole；20. main control module switchs；21. light
Source switch；22. colorimetric ware lid；23. lithium battery；24. pushing and pulling lid sliding rail.
Detailed description of the invention
Fig. 1 is internal structure Three-dimensional combination diagram of the portable milk protein content detection device under an angle；
Fig. 2 is external structure Three-dimensional combination diagram of the portable milk protein content detection device under an angle；
Fig. 3 is sectional view of the shell 1 along the direction A-A of portable milk protein content detection device；
Fig. 4 is the System Working Principle structure chart of portable milk protein content detection device；
Fig. 5 is the Function Fitting curve in portable milk protein content detection device modeling；
Fig. 6 is the top view under portable milk protein content detection device working condition.
Specific embodiment
Further to illustrate technological means that the utility model is taken and its effect, preferred implement now in conjunction with one
Example and attached drawing are described in further detail the utility model:
As depicted in figs. 1 and 2, portable milk protein content detection device, composition include shell 1, pedestal 2, heat dissipation
Hole 3, display screen 4, push-and-pull lid 5, battery case 6, cooling fin 7, heat emission fan 8, radiator pedestal 9, light source 10, shade 11, ratio
Color ware 12, cell holder 13, light intensity detection module 14, cell holder sliding rail 15, main control module 16, USB charge port 17, baffle
18, main control module switch 20, light source switch 21, colorimetric ware lid 22, lithium battery 23, push-and-pull lid sliding rail 24；The main control module 16
It is connected respectively with the display screen 4, the heat emission fan 8, the light source 10, the light intensity detection module 14, the lithium battery 23,
The USB charge port 17 is connected with the lithium battery 23, is connected between shown module and device with Du Pont's line；The baffle 18 is solid
Dingan County is mounted in 1 one side of shell；1 medial surface of shell is fixedly installed with the main control module 16, the main control module
Switch 20 and the light source switch 21 are fixedly mounted on 1 side of shell；The lithium battery 23, the cooling fin 7, it is described dissipate
Heat fan 8, the radiator pedestal 9, the shade 11 and the cell holder sliding rail 15 are fixedly mounted on the pedestal 2
It is interior；The light source 10 is fixedly mounted on 7 side of cooling fin；It is sliding that the cell holder 13 is slidably mounted on the cell holder
On rail 15, and it is close to the shade 11；The illuminance detection module 14 is fixedly mounted on 13 side of cell holder；
1 inner surface of shell has carried out shading treatment, effectively avoids the interference of ambient light；What the light intensity detection module 14 obtained
Light is transmitted light.
The main control module 16 selects STC89C52 single chip.
The heat emission fan 8 selects JMC 3010-5LS support micro direct-current fan.
The light source 10 selects the CREE XPE 595nm LED lamp bead of power 3W.
The cuvette 12 selects the quartz colorimetric utensil of light path 10mm.
The light intensity detection module 14 selects BH1750 luminous intensity module, operating voltage 3V.
The lithium battery 23 selects 18650 type Li-Ion rechargeable batteries.
The USB charge port 17 selects Micro-USB interface.
The display screen 4 selects LCD1602 liquid crystal display, and the display screen 4 has compact, and display content is clearly special
Point can use under strong light direct beam, can also use in night insufficient light.
The main control module switch 20 and the light source switch 21 select self-lock switch.
As shown in figure 3,1 top surface of shell is an inclined ramp, convenient for reading data；1 inside top surface of shell is set
It is equipped with the push-and-pull lid sliding rail 24；The push-and-pull lid 5 is slidably mounted in the push-and-pull lid sliding rail 24, can be slided, to put
Enter and take out the cuvette 12.
As shown in figure 5, the Function Fitting curve of transmission illuminance (lx) and protein content (%), use computer software
Transmission illuminance (lx) and protein content (%) are modeled, the portable milk protein content detection device is obtained
Function model are as follows:, whereinIt is transmission illuminance (lx),It is protein content (%).
Detection method includes the following steps and carries out in the following order for this portable milk protein content detection device:
A. the configuration of Coomassie Brilliant Blue dye solution: the solid-state Coomassie brilliant blue of electronic balance precise 100mg is used
G-250 powdered dye is allowed to be dissolved in the alcoholic solution of 50ml95%, then the phosphoric acid solution of 100ml85% is added thereto, most
The solution after reaction is diluted using distilled water afterwards and is settled to 1000ml.
B. it the processing of milk sample to be detected: under 20 ~ 25 degrees Celsius of temperature, takes and configured takes 5ml Coomassie brilliant blue
1ml milk protein solution after 50 times of dyestuff and dilution, which is added in test tube, to be shaken up, and mixed solution stands 3min, is sufficiently reacted.
C. preparation: the main control module switch 20 and the light source switch 21 are opened, the detection device is preheated
2min puts into milk to be detected in the cuvette 12；
D. detection process: opening the push-and-pull lid 5, remove the colorimetric ware lid 22, will be with being contained with milk to be detected
The cuvette 12 is put into the cell holder 13, covers the colorimetric ware lid 22, closes the push-and-pull lid 5；
E. the calculating and display of testing result: the light intensity detection module 14 receives transmitted light and will transmit illuminance (lx)
Send the main control module 16 to, the main control module 16 will substitute into transmitted light illumination (lx) and protein content after data processing
The mathematical model of (%) obtains protein content (%) numerical value of the sample and it will be shown on the display screen 4.
As shown in fig. 6, portable milk protein content detection device of the invention measures the protein of certain milk sample
Content is 3.16%.
Above example is only to the utility model for example, not constituting the limit to the protection scope of the utility model
System, it is all to be belonged within the protection scope of the utility model with the same or similar design of the utility model.
Claims (2)
1. portable milk protein content detection device, which is characterized in that composition includes: shell (1), pedestal (2), display screen
(4), push-and-pull lid (5), battery case (6), cooling fin (7), heat emission fan (8), radiator pedestal (9), light source (10), shade
(11), cuvette (12), cell holder (13), light intensity detection module (14), cell holder sliding rail (15), main control module (16),
USB charge port (17), baffle (18), main control module switch (20), light source switch (21), colorimetric ware lid (22), lithium battery (23),
It pushes and pulls lid sliding rail (24)；
The main control module (16) is examined with the display screen (4), the heat emission fan (8), the light source (10), the light intensity respectively
Survey module (14), the lithium battery (23) are connected, and the USB charge port (17) is connected with the lithium battery (23)；
The shade (11) is circular through hole；Respectively there are a concentric circular through hole, institute in cell holder (13) two sides
It states cell holder (13) to be fixedly mounted on the cell holder sliding rail (15), the shade (11) is close in side, another
The light intensity detection module (14), the circular through hole and institute of the light source (10) and the shade (11) is fixedly mounted in side
(13) two circular through hole axle center of cell holder are stated on same straight line；Shell (1) inner surface has masking foil, into
Shading treatment is gone；Shade (11) color is black, and outer surface simultaneously has masking foil.
2. portable milk protein content detection device according to claim 1, which is characterized in that the shell (1)
Top surface is an inclined ramp, and inside top surface is provided with the push-and-pull lid sliding rail (24)；
The push-and-pull lid (5) is slidably mounted in the push-and-pull lid sliding rail (24), can slide, to be placed and taken out the ratio
Color ware (12)；
The baffle (18) is fixedly mounted on the shell (1)；
Shell (1) medial surface is equipped with the main control module (16), and the main control module switch (20) and the light source are opened
(21) are closed to be fixedly mounted on the shell (1)；
The lithium battery (23) is fixedly mounted in the battery case (6), and the heat emission fan (8) is fixedly mounted on the radiator
On support (9), the cooling fin (7) is fixedly mounted on the heat emission fan (8) side, the shade (11) and the colorimetric
Ware seat sliding rail (15) is fixedly mounted in the pedestal (2)；
The light source (10) is fixedly mounted on the cooling fin (7)；
The light source (10) is single wavelength light source, wavelength 595nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820195633.6U CN208636203U (en) | 2018-02-05 | 2018-02-05 | Portable milk protein content detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820195633.6U CN208636203U (en) | 2018-02-05 | 2018-02-05 | Portable milk protein content detection device |
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| Publication Number | Publication Date |
|---|---|
| CN208636203U true CN208636203U (en) | 2019-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820195633.6U Active CN208636203U (en) | 2018-02-05 | 2018-02-05 | Portable milk protein content detection device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111366532A (en) * | 2020-04-27 | 2020-07-03 | 上海仪电检测技术有限公司 | Novel multi-functional multichannel short-term test appearance |
| CN113804824A (en) * | 2021-11-16 | 2021-12-17 | 广东省良种引进服务公司 | Efficient detection system and detection method for fish meal components |
-
2018
- 2018-02-05 CN CN201820195633.6U patent/CN208636203U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111366532A (en) * | 2020-04-27 | 2020-07-03 | 上海仪电检测技术有限公司 | Novel multi-functional multichannel short-term test appearance |
| CN113804824A (en) * | 2021-11-16 | 2021-12-17 | 广东省良种引进服务公司 | Efficient detection system and detection method for fish meal components |
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