CN109060741A - A kind of edible vegetable oil storage period oil product detection device and method - Google Patents
A kind of edible vegetable oil storage period oil product detection device and method Download PDFInfo
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- CN109060741A CN109060741A CN201810866767.0A CN201810866767A CN109060741A CN 109060741 A CN109060741 A CN 109060741A CN 201810866767 A CN201810866767 A CN 201810866767A CN 109060741 A CN109060741 A CN 109060741A
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- vegetable oil
- edible vegetable
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- fluorescence
- storage period
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/6402—Atomic fluorescence; Laser induced fluorescence
Abstract
The present invention provides a kind of edible vegetable oil storage period oil product detection device and methods.Since oxidation reaction occurs in edible vegetable oil storage, antioxidant consumption and oxidation metabolites is caused to generate, the antioxidant and metabolite fluorescence intensity change of edible vegetable oil are quickly measured by fluorescent spectrometry, computer calculates relationship between edible vegetable oil antioxidant and metabolite fluorescence intensity and qualified vegetable oil fluorescence intensity in real time.When fluorescence intensity is less than the threshold value of setting, it is possible to determine that edible vegetable oil is in unqualified state, not can be carried out sale.This method can be with fluorescent material changing condition of the intelligentized fast slowdown monitoring edible vegetable oil in storage, to carry out intelligent decision to food plant oil quality, the character surveillance in the edible vegetable oils storage such as soybean oil, peanut oil, olive oil can be applied to.
Description
Technical field
The invention belongs to food intelligent detection fields, and in particular to real to the fluorescent material in edible vegetable oil storage
When the quality control technology that detects, while being related in edible vegetable oil storage.
Technical background
China possesses the maximum consumption market of edible vegetable oil, is edible vegetable oil big producer, consumption big country and import
Big country.The eight big edible vegetable oil raw material annual outputs such as Chinese rapeseed oil, soybean oil, peanut oil are about 5884.7 ten thousand tons according to statistics,
The edible vegetable oil raw material of import is needed to reach 8952.9 ten thousand tons every year.Edible vegetable oil product oil annual consumption is 3426.5 ten thousand
Ton, edible vegetable oil consumption figure is 24.8 kg per capita.As China's economic is quick, steady growth and living standards of the people are continuous
It improves, high-quality food plant oil quality becomes one of an important factor for restricting food service industry development.
Traditional edible vegetable oil storage period quality control is mainly measured by artificial sense control and physical and chemical index.Manually
Mainly according to edible vegetable oil volatile flavor, whether great changes will take place and whether color change is obvious for sense organ measurement.It is physical and chemical
Index determining mainly passes through physics and chemical means and is sampled to edible vegetable oil sample, then according to physical and chemical index to food
It is detected with Vegetable Oil Quality.Since both detection modes are required to open edible vegetable oil storage container, acquisition is edible
Vegetable oil sample carries out Quality Detection.However, can be by oxygen, moisture and some other impurity in air in sample collection procedure
It is introduced into edible vegetable oil storage container.These foreign substances can accelerate edible vegetable oil oxidation process, lead to food plant
Oil quality degradation.Due to being influenced by factors such as above-mentioned detection technique and detectabilities, in edible vegetable oil storage
Quality be difficult to obtain effective monitoring, become restrict edible vegetable oil development an important factor for, be unable to satisfy the country to high-quality
The demand of edible vegetable oil.
Edible vegetable oil significant change in storage is the antioxidant metabolism and be total to that vitamin E is representative
Yoke diene, the oxidation metabolites that conjugated triene is representative generate.The variation of these fluorescent components can be used as food plant oil product
The important indicator of qualitative change.The present invention is by front surface fluorescent spectrometry, under without any sampling condition, obtains edible plant
Object oil spectrofluorimetry, and intelligent, Fast Evaluation is carried out to food plant oil quality by founding mathematical models mode.
Summary of the invention
The purpose of the present invention is to provide a kind of edible vegetable oil quality detecting method and devices, realize to edible vegetable oil
The intelligent measurement of fluorescent material in storage, so that the character surveillance for edible vegetable oil processing enterprise and supervision department provides
Technical support.
In order to solve above-mentioned technical problem, fluorescence spectroscopy technique is applied to food plant oil quality and intelligently examined by the present invention
It surveys, specific technical solution is as follows:
A kind of edible vegetable oil storage period oil product detection device, including computer (1), fluorescence detector (3), edible vegetable oil
The signal input part of storage tank (5) and excitation light source (8), computer (1) passes through data line (2) and fluorescence detector (3)
Signal output end connection, offer detection window (6) on edible vegetable oil storage tank (5), detection window (6) passes through incident light
Fine (7) are connect with excitation light source (8), and are connect by launching fiber (4) with fluorescence detector (3).
Preferably, the detection window (6) be made using quartz glass as material and with launching fiber (4), incident optical (7)
The interface of connection is in 90 ° of angles.
Preferably, the excitation light source (8) is a kind of for exciting fluorescent material and generating corresponding characteristic fluorescence spectrum
The monochromatic light source of offer.
Preferably, the incident optical (7) and launching fiber (4) are fluorescence optical fiber.
Preferably, the edible vegetable oil is any one of palm oil, peanut oil, soybean oil, rapeseed oil, olive oil.
A kind of detection method of above-mentioned edible vegetable oil storage period oil product detection device, comprising the following steps:
S1, excitation light source (8) are opened, excitation light source (8) is entered on edible vegetable oil storage tank (5) by incident optical (7)
Detection window (6)；
The inner edible vegetable oil fluorescent material of S2, detection window (6) is excited, and enters fluorescence inspection by launching fiber (4)
It surveys device (3), fluorescence detector (3) acquires the characterized fluorescence spectroscopic data that fluorescent material generates, and converts the electrical signal to number
Word signal；
The signal for acquiring and converting is transferred in computer (1) by S3, fluorescence detector (3) by data line (2), is carried out
Data analysis.
Preferably, in step S3 data analysis the following steps are included:
S31, it collected edible vegetable oil storage period fluorescence signal is updated in the mathematical model having had built up obtains
Intelligent measurement decision content, by comparing sample to be tested intelligent measurement decision content and the oil product qualification that is set in mathematical model with
No threshold value carrys out intelligent decision edible vegetable oil fresh state；
S32, it then can be determined that this oil product is qualified product when decision content is higher than this threshold value, decision content can be determined that this lower than the threshold value
Oil product is rejected product.
Further, mathematical model described in step S31 foundation the following steps are included:
S311, acquisition storage period edible vegetable oil, it is edible between acquisition different storage by sensory evaluation and Physico-chemical tests
Vegetable Oil Quality information；
S312, the fluorescence information that edible vegetable oil fluorescent component is obtained by fluorescence spectrum acquisition device, computer passes through simple
Data conversion and data processing method, fluorescence spectrum information is converted into digital information；
S313, a robustness is established as output valve using fluorescence signal value as numerical value, edible vegetable oil quality information is inputted
Good, intelligentized edible vegetable oil quality judging model；Concurrently set qualified edible vegetable oil and unqualified edible vegetable oil
Fluorescence values threshold value.
Preferably, edible vegetable oil quality information described in step S311 includes the state of oxidation index acid of edible vegetable oil
Valence, peroxide.
The beneficial effects of the present invention are:
The present invention utilizes optical fiber type fluorescence spectrum detecting device by detection window, is not necessarily under conditions of sampling to edible vegetable oil
Oil product carries out real-time, on-line checking；Changed by the fluorescent component of edible vegetable oil storage period, is detected in conjunction with intelligent data
Model can carry out automation and intellectualized detection to edible vegetable oil oil product.
Detailed description of the invention
Fig. 1 is edible vegetable oil storage period oil product detection device schematic diagram of the present invention；Wherein, 1- computer, 2- data
Transmission line, 3- fluorescence detector, 4- launching fiber, 5- edible vegetable oil storage tank, 6- detection window, 7- incident optical, 8- swash
Light emitting source;
Fig. 2 is the edible vegetable oil characterized fluorescence spectrum spectrogram in the embodiment of the present invention;
Fig. 3 is the edible vegetable oil acid value detection model in the embodiment of the present invention.
Specific embodiment
Technical solution of the present invention is further clarified below in conjunction with attached drawing and specific implementation case.
The present invention has versatility to the oil product detection of edible vegetable oil storage period.The present invention is using peanut oil as implementation
Case, the present invention are not limited only to the peanut oil in embodiment, and other edible regetable oil product examine surveys are also referred to this embodiment
It carries out.
Attached drawing 1 is that edible vegetable oil storage period oil product detection device schematic diagram detects Portable fluorescence according to Fig. 1
Device 3 is attached with data line 2 and computer 1, and the detection window 6 opened up on edible vegetable oil storage tank 5 is by quartz
Glass is made into, and two sides are separately connected incident optical 7 and launching fiber 4, and two optical fiber are connected with 90 ° of angles with detection window 6.Enter
The one end for penetrating optical fiber 7 is connected with detection window 6, and the other end is connected with excitation light source 8；4 one end of launching fiber and fluorescence are examined
It surveys device 3 to be connected, the other end is connected with detection window 6.Excitation light source 8 is a kind of monochromatic light source of offer, is mainly used for
Excitation fluorescent material simultaneously generates corresponding characteristic fluorescence spectrum；Detector 3 is mainly used for acquiring the characteristic that fluorescent material generates
Fluorescence data, and convert the electrical signal to digital information；Computer 1 provides a visualized data processing and result is defeated
Interface out carries out intelligent Evaluation to food plant oil quality.
Program is controlled by edible vegetable oil oil product, the time of integration is set as 10000ms, selects in 300nm-700nm
For one monochromatic light as excitation light source 8, wavelength of transmitted light is selected as 200nm-800m, and each sample repeated acquisition number is 3 times
And do blank control.Exciting light sources are opened, excitation light source 8 can enter detection window 6 by incident optical 7 at this time, detect window
Edible vegetable oil fluorescent material in mouth 6 is excited, and a series of characterized fluorescence light that wavelength are 200nm-800nm is generated
Spectrum, fluorescence detector 3 acquires the characterized fluorescence spectroscopic data that fluorescent material generates, and converts the electrical signal to digital signal,
Finally the collected signal value of institute is input in computer.
Collected edible vegetable oil storage period fluorescence signal is updated in the mathematical model having had built up, is passed through
Existing mathematical model carrys out intelligent decision edible vegetable oil fresh state.The mathematical model is established to need to acquire between different storage
Edible vegetable oil quality information (such as acid value, peroxide state of oxidation index), be by sensory evaluation and Physico-chemical tests
It obtains；The fluorescence information of edible vegetable oil fluorescent component is obtained by fluorescence spectrum acquisition device, computer is by simply counting
According to conversion and data processing method, fluorescence spectrum information is converted into digital information；Using fluorescence signal value as input numerical value, food
Vegetable Oil Quality information is used as output valve, establishes that a robustness is good, intelligentized edible vegetable oil quality judging model, institute
Prediction result and the chemical actual test result for establishing model are as shown in Figure 2.
The qualified or not threshold value of an oil product is set in intelligent measurement model, edible plant can quickly be determined by establishing one
The human-computer interaction interface of object oil quality；In to edible vegetable oil storage, computer intelligence detection program will obtain in real time
Edible vegetable oil fluorescence spectrum numerical value；When fluorescence signal value is less than the fluorescence spectrum threshold value of setting, it is believed that this edible vegetable oil
Quality decline is to unqualified state, it should immediately treat to the edible vegetable oil in this tank body；When fluorescence signal value is greater than
Equal to setting threshold value when, it is possible to determine that the edible vegetable oil is also in eligible state, additionally it is possible to store to edible vegetable oil
Hiding；The oil product of edible vegetable oil storage period is precisely detected to realize.
The good edible vegetable oil intelligent detection device of application build and the relevant food plant oil quality quick predict of implantation
Model predicts the acid value of 7 food plant oil samples commercially, while according to the chemistry in national standard
Detection method carries out chemical index measurement.The results are shown in Table 1 for prediction result and chemical detection.
Comparison (unit: mg/g) between 1 vegetable seed oil samples acid value predicted value of table and chemical measurements
| Sample number | Predicted value | Chemical measurements | Absolute deviation |
| 1 | 0.777 | 0.795 | -0.018 |
| 2 | 0.756 | 0.774 | -0.018 |
| 3 | 0.815 | 0.823 | -0.008 |
| 4 | 0.828 | 0.887 | -0.095 |
| 5 | 1.146 | 1.259 | -0.113 |
| 6 | 1.087 | 1.062 | 0.025 |
| 7 | 1.013 | 1.083 | -0.070 |
As seen from the above table, deviation is little between the model predication value of detection method building and the chemical measurements of national standard, can use
Automation and intellectualized detection in edible vegetable oil oil product are the character surveillance of edible vegetable oil processing enterprise and supervision department
Technical support is provided.
Embodiment described above is only that preferred embodiments of the present invention will be described, not to model of the invention
It encloses and is defined, without departing from the spirit of the design of the present invention, those of ordinary skill in the art are to technical side of the invention
The various changes and improvements that case is made, should fall within the scope of protection determined by the claims of the present invention.
Claims (9)
1. a kind of edible vegetable oil storage period oil product detection device, it is characterised in that: including computer (1), fluorescence detector
(3), edible vegetable oil storage tank (5) and excitation light source (8), the signal input part of computer (1) by data line (2) with
The signal output end of fluorescence detector (3) connects, and offers detection window (6), detection window on edible vegetable oil storage tank (5)
(6) it is connect by incident optical (7) with excitation light source (8), and is connect by launching fiber (4) with fluorescence detector (3).
2. a kind of edible vegetable oil storage period oil product detection device according to claim 1, it is characterised in that: the inspection
Survey window (6) is made using quartz glass as material and the interface connecting with launching fiber (4), incident optical (7) is in 90 ° of angles.
3. a kind of edible vegetable oil storage period oil product detection device according to claim 1, it is characterised in that: described to swash
Light emitting source (8) is a kind of monochromatic light source of offer for exciting fluorescent material and generating corresponding characteristic fluorescence spectrum.
4. a kind of edible vegetable oil storage period oil product detection device according to claim 1, it is characterised in that: it is described enter
It penetrates optical fiber (7) and launching fiber (4) is fluorescence optical fiber.
5. a kind of edible vegetable oil storage period oil product detection device according to claim 1, it is characterised in that: the food
It is any one of palm oil, peanut oil, soybean oil, rapeseed oil, olive oil with vegetable oil.
6. a kind of detection method of the described in any item edible vegetable oil storage period oil product detection devices of claim 1 ~ 5,
It is characterized in that, comprising the following steps:
S1, excitation light source (8) are opened, excitation light source (8) is entered on edible vegetable oil storage tank (5) by incident optical (7)
Detection window (6)；
The inner edible vegetable oil fluorescent material of S2, detection window (6) is excited, and enters fluorescence inspection by launching fiber (4)
It surveys device (3), fluorescence detector (3) acquires the characterized fluorescence spectroscopic data that fluorescent material generates, and converts the electrical signal to number
Word signal；
The signal for acquiring and converting is transferred in computer (1) by S3, fluorescence detector (3) by data line (2), is carried out
Data analysis.
7. a kind of detection method of edible vegetable oil storage period oil product detection device according to claim 6, feature
Be, in step S3 data analysis the following steps are included:
S31, it collected edible vegetable oil storage period fluorescence signal is updated in the mathematical model having had built up obtains
Intelligent measurement decision content, by comparing sample to be tested intelligent measurement decision content and the oil product qualification that is set in mathematical model with
No threshold value carrys out intelligent decision edible vegetable oil fresh state；
S32, it then can be determined that this oil product is qualified product when decision content is higher than this threshold value, decision content can be determined that this lower than the threshold value
Oil product is rejected product.
8. a kind of detection method of edible vegetable oil storage period oil product detection device according to claim 6, feature
Be, the foundation of mathematical model described in step S31 the following steps are included:
S311, acquisition storage period edible vegetable oil, it is edible between acquisition different storage by sensory evaluation and Physico-chemical tests
Vegetable Oil Quality information；
S312, the fluorescence information that edible vegetable oil fluorescent component is obtained by fluorescence spectrum acquisition device, computer passes through simple
Data conversion and data processing method, fluorescence spectrum information is converted into digital information；
S313, a robustness is established as output valve using fluorescence signal value as numerical value, edible vegetable oil quality information is inputted
Good, intelligentized edible vegetable oil quality judging model；Concurrently set qualified edible vegetable oil and unqualified edible vegetable oil
Fluorescence values threshold value.
9. a kind of detection method of edible vegetable oil storage period oil product detection device according to claim 8, feature
Be: edible vegetable oil quality information described in step S311 includes the state of oxidation index acid value of edible vegetable oil, peroxide.
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| CN105424660A (en) * | 2015-11-02 | 2016-03-23 | 天津商业大学 | Method for quantitatively detecting vegetable oil adulteration |
| CN106770141A (en) * | 2017-02-04 | 2017-05-31 | 厦门斯坦道科学仪器股份有限公司 | Edible oil quality detection method, equipment and system |
| CN107462560A (en) * | 2017-09-08 | 2017-12-12 | 周茗皓 | LIF combinations LIBS edible oil quality fast analyser and method |
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2018
- 2018-08-01 CN CN201810866767.0A patent/CN109060741A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102590172A (en) * | 2012-01-19 | 2012-07-18 | 邹玉峰 | Classification test method and classification test system for edible oil and swill-cooked dirty oil |
| WO2014181209A1 (en) * | 2013-05-06 | 2014-11-13 | Koninklijke Philips N.V. | Method and device for measuring quality and freshness of vegetable oil using fluorescence spectrophotometry |
| CN104749150A (en) * | 2015-04-01 | 2015-07-01 | 宁波工程学院 | Edible oil quality fast identification method and identification device based on three-dimensional fluorescence spectrum |
| CN105424660A (en) * | 2015-11-02 | 2016-03-23 | 天津商业大学 | Method for quantitatively detecting vegetable oil adulteration |
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