CN203849170U - Device for rapidly detecting trans-fatty acids of edible vegetable oil - Google Patents
Device for rapidly detecting trans-fatty acids of edible vegetable oil Download PDFInfo
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- CN203849170U CN203849170U CN201420203259.1U CN201420203259U CN203849170U CN 203849170 U CN203849170 U CN 203849170U CN 201420203259 U CN201420203259 U CN 201420203259U CN 203849170 U CN203849170 U CN 203849170U
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Abstract
The utility model discloses a device for rapidly detecting trans-fatty acids of edible vegetable oil. The device comprises a computer (12), a near-infrared spectroscopy (13), a fixed sleeve I (15), a fixed sleeve II (3) and a switching power supply (6), wherein the fixed sleeve I (15) is internally provided with an optical fiber fixed frame (16) and a focusing lens I (17) along the axial direction; the fixed sleeve II (3) is internally provided with a focusing lens II (1), a focusing lens III (2) and a halogen tungsten lamp cup (4) along the axial direction; the computer (12) is connected with the near-infrared spectroscopy (13); the near-infrared spectroscopy (13) is connected with the optical fiber fixed frame (16) through an optical fiber (14); the switching power supply (6) is connected with the halogen tungsten lamp cup (4) through an electric wire (5); the fixed sleeve I (15) and the fixed sleeve II (3) are horizontally and oppositely placed; and a sample (18) is placed between the fixed sleeve I (15) and the fixed sleeve II (3). The device can be used for real-time monitoring and field rapid sampling detection on the content of the trans-fatty acids in a production and processing process of the edible vegetable oil.
Description
Technical field
The utility model relates to agricultural product/Food Quality and Safety detection technique field, relates in particular to a kind of device of edible vegetable oil trans-fatty acid fast detecting.
Background technology
Trans-fatty acid in edible vegetable oil is a kind of bad fatty acid, excessive amount can produce many harm to health, can promote artery sclerosis, bring out angiocardiopathy and diabetes, affect upgrowth and development of children and the nervous system disease, increase the risk of cancer such as breast cancer, colon cancer, prostate cancer.Therefore, be necessary very much the content of trans fatty acids in edible vegetable oil to detect.
At present, the detection method of edible vegetable oil trans-fatty acid mainly contains vapor-phase chromatography, infra-red sepectrometry, silver ion chromatography, capillary electrophoresis, high performance liquid chromatography etc.Silver ion chromatography is mainly according to Ag+have faint acting force with cis-double bonds, and does not have an effect to measure the content of trans-fatty acid with trans double bond.But said method all carries out pre-treatment at needs to sample, detection time is relatively long, cannot realize the content of trans fatty acids fast detecting in edible vegetable oil.
Near infrared technology is the modern analytical technique growing up in recent decades, and its principle is to utilize the sum of fundamental frequencies of the group such as C-C, C-H and frequency multiplication absorption to detect molecular substance content.This technology has advantages of without sample pretreatment, non-destructive, detects in real time fast, can meet the fast detecting of edible vegetable oil content of trans fatty acids.
Utility model content
The purpose of this utility model is to provide a kind of device for fast detecting of edible vegetable oil content of trans fatty acids.
The utility model adopts following technical scheme:
Edible vegetable oil trans-fatty acid device for fast detecting of the present utility model comprises computing machine, near infrared spectrometer, fixed muffle I, fixed muffle II and Switching Power Supply composition, wherein, is provided with vertically fiber fixed frame and condenser lens I in fixed muffle I; In fixed muffle II, be provided with vertically condenser lens II, condenser lens III and halogen tungsten Lamp cup; Computing machine is connected with near infrared spectrometer, and near infrared spectrometer is connected with fiber fixed frame by optical fiber, and Switching Power Supply is connected with halogen tungsten Lamp cup by electric wire, and fixed muffle I and fixed muffle II level are staggered relatively, the middle sample of placing.
Fixed muffle I below is connected and fixed support I, and fixed support I below connects XY diaxon displacement platform I.
Fixed muffle II below is connected and fixed support II, and fixed support II below connects XY diaxon displacement platform II.
In the middle of fixed muffle I and fixed muffle II, be provided with objective table, for placing sample.
Good effect of the present utility model is as follows:
The content of trans fatty acids that edible vegetable oil trans-fatty acid device for fast detecting of the present utility model utilizes near-infrared spectrum technique to detect in edible vegetable oil has advantages of without sample pretreatment, non-destructive, detects in real time fast, can be for the content of trans fatty acids Real-Time Monitoring of edible vegetable oil process of manufacture and food security law enfrocement official's the quick sampling Detection in scene.
Brief description of the drawings
The schematic diagram of Fig. 1 edible vegetable oil trans-fatty acid of the present utility model device for fast detecting
In figure: 1, condenser lens II; 2, condenser lens III; 3, fixed muffle II; 4, halogen tungsten Lamp cup; 5, electric wire; 6, Switching Power Supply; 7, XY diaxon displacement platform II; 8, fixed support II; 9, objective table; 10, XY diaxon displacement platform I; 11, fixed support I; 12, computing machine; 13, near infrared spectrometer; 14, optical fiber; 15, fixed muffle I; 16, fiber fixed frame; 17, condenser lens I; 18, sample; 19, parallel beam.
Embodiment
The following examples are to describe in further detail of the present utility model.
This specific embodiment, taking barreled soybean oil sample as example, detects through national standard method, and the content of trans fatty acids of soybean oil sample is 2.15%.
As shown in Figure 1, a kind of edible vegetable oil trans-fatty acid device for fast detecting of the present embodiment, be placed on objective table 9 barreled soybean oil as sample 18, fixed muffle II 3 is connected with XY diaxon displacement platform II 7 by fixed support II 8, condenser lens II 1, condenser lens III 2 and halogen tungsten Lamp cup 4 are fixedly mounted on 3 li of fixed muffle II, make the middle part of fixed muffle II 3 in sample 18 by mobile XY diaxon displacement platform II 7, and the front end of fixed muffle II 3 and sample distance is 1 cm; Fixed muffle I 15 is connected with XY diaxon displacement platform I 10 by fixed support I 11, condenser lens I 17 and fiber fixed frame 16 are fixedly mounted in fixed muffle 15 I, optical fiber 14 is fixed on fiber fixed frame 16, make the middle part of fixed muffle I 15 in sample 18 by mobile XY diaxon displacement platform I 10, and the front end of fixed muffle I 15 and sample distance are 0.1cm, prevent that exterior light from directly entering optical fiber 14 by condenser lens I 17; Open Switching Power Supply 6, make light line focus lens II 1 and condenser lens III 2 that halogen tungsten Lamp cup 4 produces irradiate sample 18 with parallel beam 19, the light line focus lens I 17 that sees through sample 18 converges, enter optical fiber 14, obtained again the spectral signal of sample 18 by near infrared spectrometer 13, be then saved in 12 li, computing machine.For improving the trans-fatty acid accuracy of detection of sample 18, the spectral signal of the different parts of collecting sample 18.Mobile XY diaxon displacement platform II 7 and XY diaxon displacement platform I 10, make fixed muffle II 3 and the bottom of fixed muffle I 15 in sample 18, the spectral signal of collecting sample 18; Mobile XY diaxon displacement platform II 7 and XY diaxon displacement platform I 10, make fixed muffle II 3 and the top of fixed muffle I 15 in sample 18, the spectral signal of collecting sample 18 again; 3 spectral signals of sample 18 are averaging, and the spectrum using averaged spectrum as sample 18 is for follow-up content of trans fatty acids analysis.
The averaged spectrum of sample 18 is carried out to spectrum pre-service, then extract the spectral absorbance value of trans-fatty acid characteristic wave bands, finally absorbance is input in the regression equation of trans-fatty acid, the content of trans fatty acids that obtains sample 18 is 2.08%.
The concrete steps of fast method are as follows:
(1) trans-fatty acid in collection edible vegetable oil and the near infrared spectrum of cis fatty acid standard items;
(2) calculate the near infrared spectrum of trans-fatty acid and cis fatty acid standard items is carried out to SPECTRAL DIVERSITY analysis by the faint difference of spectrum, and characteristic wave bands using SPECTRAL DIVERSITY wave band as trans-fatty acid;
(3) the edible vegetable oil sample of collection different cultivars, separate sources and different content of trans fatty acids, and the near infrared spectrum of collecting sample;
(4) near infrared spectrum of step (3) collecting sample is carried out to spectrum pre-service, and extract the spectral absorbance value of trans-fatty acid characteristic wave bands;
(5) adopt national standard method to measure the content of trans fatty acids of sample;
(6) applying non-linear offset minimum binary carries out associated by the spectral absorbance value of sample trans-fatty acid characteristic wave bands with its real content of trans fatty acids, set up the regression equation of trans-fatty acid, the regression equation of trans-fatty acid is y=B*D, y is the prediction content of trans fatty acids of sample, B is the regression coefficient matrix of trans-fatty acid characteristic wave bands, and D is the spectral absorbance value matrix of trans-fatty acid characteristic wave bands;
(7) for the edible vegetable oil of unknown content of trans fatty acids, first gather the near infrared spectrum of edible vegetable oil, and spectrum is carried out to pre-service, then extract the spectral absorbance value of trans-fatty acid characteristic wave bands, finally absorbance is input in the regression equation of trans-fatty acid, obtain the content of trans fatty acids of edible vegetable oil, thereby realize the fast detecting of edible vegetable oil content of trans fatty acids.
Although illustrated and described embodiment of the present utility model, for the ordinary skill in the art, be appreciated that in the situation that not departing from principle of the present utility model and spirit and can carry out multiple variation, amendment, replacement and modification to these embodiment, scope of the present utility model is limited by claims and equivalent thereof.
Claims (4)
1. the device of an edible vegetable oil trans-fatty acid fast detecting, it is characterized in that: described device comprises computing machine (12), near infrared spectrometer (13), fixed muffle I (15), fixed muffle II (3) and Switching Power Supply (6) composition, wherein, in fixed muffle I (15), be provided with vertically fiber fixed frame (16) and condenser lens I (17); In fixed muffle II (3), be provided with vertically condenser lens II (1), condenser lens III (2) and halogen tungsten Lamp cup (4); Computing machine (12) is connected with near infrared spectrometer (13), near infrared spectrometer (13) is connected with fiber fixed frame (16) by optical fiber (14), Switching Power Supply (6) is connected with halogen tungsten Lamp cup (4) by electric wire (5), fixed muffle I (15) and fixed muffle II (3) level are staggered relatively, the middle sample (18) of placing.
2. device as claimed in claim 1, is characterized in that: fixed muffle I (15) below is connected and fixed support I (11), and fixed support I (11) below connects XY diaxon displacement platform I (10).
3. device as claimed in claim 1, is characterized in that: fixed muffle II (3) below is connected and fixed support II (8), and fixed support II (8) below connects XY diaxon displacement platform II (7).
4. device as claimed in claim 1, is characterized in that: in the middle of fixed muffle I (15) and fixed muffle II (3), be provided with objective table (9), for placing sample (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420203259.1U CN203849170U (en) | 2014-04-24 | 2014-04-24 | Device for rapidly detecting trans-fatty acids of edible vegetable oil |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420203259.1U CN203849170U (en) | 2014-04-24 | 2014-04-24 | Device for rapidly detecting trans-fatty acids of edible vegetable oil |
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| CN203849170U true CN203849170U (en) | 2014-09-24 |
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| CN201420203259.1U Expired - Fee Related CN203849170U (en) | 2014-04-24 | 2014-04-24 | Device for rapidly detecting trans-fatty acids of edible vegetable oil |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103926216A (en) * | 2014-04-24 | 2014-07-16 | 江西农业大学 | Method and device for rapidly detecting trans-fatty acids in edible vegetable oil |
| CN112240876A (en) * | 2019-07-17 | 2021-01-19 | 华东理工大学 | Method for detecting fermentation process parameters in real time based on near infrared |
| RU202123U1 (en) * | 2020-04-03 | 2021-02-03 | федеральное государственное автономное образовательное учреждение высшего образования "Казанский (Приволжский) федеральный университет" (ФГАОУ ВО КФУ) | Device for evaluating and controlling the quality of vegetable oils |
| RU2825675C1 (en) * | 2024-04-01 | 2024-08-28 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Кубанский государственный технологический университет" (ФГБОУ ВО "КубГТУ") | Method of determining squalene in distillation of vegetable oil |
-
2014
- 2014-04-24 CN CN201420203259.1U patent/CN203849170U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103926216A (en) * | 2014-04-24 | 2014-07-16 | 江西农业大学 | Method and device for rapidly detecting trans-fatty acids in edible vegetable oil |
| CN112240876A (en) * | 2019-07-17 | 2021-01-19 | 华东理工大学 | Method for detecting fermentation process parameters in real time based on near infrared |
| RU202123U1 (en) * | 2020-04-03 | 2021-02-03 | федеральное государственное автономное образовательное учреждение высшего образования "Казанский (Приволжский) федеральный университет" (ФГАОУ ВО КФУ) | Device for evaluating and controlling the quality of vegetable oils |
| RU2825675C1 (en) * | 2024-04-01 | 2024-08-28 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Кубанский государственный технологический университет" (ФГБОУ ВО "КубГТУ") | Method of determining squalene in distillation of vegetable oil |
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Granted publication date: 20140924 Termination date: 20170424 |
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| CF01 | Termination of patent right due to non-payment of annual fee |