CN103487384A - Near-infrared-spectrum-based method for rapidly detecting components of bagged rice - Google Patents
Near-infrared-spectrum-based method for rapidly detecting components of bagged rice Download PDFInfo
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- CN103487384A CN103487384A CN201310479845.9A CN201310479845A CN103487384A CN 103487384 A CN103487384 A CN 103487384A CN 201310479845 A CN201310479845 A CN 201310479845A CN 103487384 A CN103487384 A CN 103487384A
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Abstract
The invention discloses a near-infrared-spectrum-based method for rapidly detecting components of bagged rice, and belongs to a method for rapidly detecting components of the bagged rice and evaluating the quality of the bagged rice according to a near infrared spectrum. The method comprises the following steps: establishing a relational database between the content of components of a standard bagged rice sample and the near infrared spectrum; acquiring a near infrared spectrum of bagged rice to be detected by adopting a near-infrared spectrometer; comparing the near infrared spectrum of the bagged rice to be detected with the relational database, and calculating the content of the components of the bagged rice to be detected; finally, evaluating the quality of the bagged rice to be detected according to the content of the components of the bagged rice to be detected. According to the method, a packaging bag is not required to be independently detected, so that the influence of the packaging bag on the detection result can be eliminated, and the detection efficiency is improved. Moreover, the bagged rice can be directly graded or whether the bagged rice is qualified can be judged according to the detection result, so that a conclusion represented by the detection result is clear at a glance.
Description
Technical field
Packed paddy composition method for quick based near infrared spectrum belongs to and utilizes the packed paddy composition of near infrared spectrum fast detecting, estimates the method for packed paddy quality.
Background technology
Along with the increase gradually of people's income, the raising day by day of living standard, to the also just raising gradually of requirement of the nutritional labeling kind in food, content.In order to adapt to the demand of different crowd, present stage, many products all carried out grade classification, and were distinguished by different packings, and a lot of other food of luxury goods level qualities outstanding with it have won the favor in market.
China is large agricultural country, and soil is wide, and the cereal crops that China can plant are various in style, not only can meet the domestic market demand, and a large amount of outlet.For the quality testing of cereal crops, especially other grain quality of luxury goods level detects, and not only is related to food-safety problem, and simul relation is to the international image problem of China.
In China, the sown area of paddy accounts for 1/4 of the cereal crops total area, and output accounts for 1/2 of national total output of grain, in commodity food, accounts for over half.Because sown area is wide, greatly, therefore output be one of topmost cereal crops of China.Colory paddy often compressed being sealed in transparent plastic bag is betrayed.Although the component content of paddy is substantially known before pack, but there is no meticulousr division, the component content in each bag is not done to accurate-metering yet.The more important thing is, packed paddy, as other grain commodity of luxury goods level, can't be accepted by the numerous common people, so these class commodity also have the characteristics such as of a specified duration, sales cycle resting period is long.Resting period due to effects such as oxidation, sunshines, can make its composition change after crossing for a long time, causes quality to change.
At present, solution to this problem exactly to same batch of goods sampling open bag and detect, carry out chemical analysis according to related standards, and estimate that other does not open the component content of concessionaire's product.Although this method has higher accuracy, yet efficiency is low.In addition, same batch of goods may be assigned to each point of sale, and the different batches commodity are likely deposited in each point of sale simultaneously, therefore, at first determine which batch particular commodity belongs to, by the commodity of opening bag with batch sampling, its composition is being estimated again, further reduced detection efficiency.
In order to address the above problem, the patent of invention of having authorized " setting up method and the food detection method of glass pack composition correlation model ", application number: 200410077817.5, the detection method of a kind of bottled natural law glue based food (fermented bean curd etc.) is disclosed.At first the correlation model method for building up adopts standard method of analysis to measure each component content in sample, then gather their near infrared spectrum by the diffuse reflection mode, again the near infrared spectrum gathered is eliminated to the impact of bottle itself with mathematical way, then in the mode of mathematical operation, extract the characteristic information of each composition in spectrum, finally set up the correlation model between the characteristic of individual tie element in each component content value and its spectrum; At first the food ingredients detection method gathers the near infrared spectrum of tested bottled food, then eliminate the impact of bottle reflection near infrared spectrum, eliminate again the diffuse transmission influence of tested bottled food, last according to each component content in the tested bottled food of correlation model prediction of setting up.
The shortcoming of this patent is:
1) correlation model and detection method have all related to step how to eliminate bottle impact itself, and this just needs in each testing process, and all needing increases the step that bottle is detected separately, has reduced detection efficiency;
2) after the food composition content detection is finished, the not conclusion of this testing result explanation, even make the user know testing result, do not know the fine or not standard of this result yet.
Summary of the invention
In order to address the above problem, the invention discloses a kind of packed paddy composition method for quick based near infrared spectrum, the method can be eliminated the impact of packaging bag on testing result without detecting separately packaging bag, has improved detection efficiency; And can directly carry out grade classification to packed paddy according to testing result or judge whether qualifiedly, therefore make the conclusion of testing result representative very clear.
The object of the present invention is achieved like this:
Packed paddy composition method for quick based near infrared spectrum comprises the following steps:
Step a, the packed rice sample component content of Criterion and near infrared spectrum linked database;
Step b, employing near infrared spectrometer obtain packed paddy near infrared spectrum to be measured;
The linked database that the to be measured packed paddy near infrared spectrum that step c, comparison step b obtain and step a obtain, the described packed paddy component content to be measured of calculation procedure b;
Steps d, the to be measured packed paddy component content obtained according to step c are estimated packed paddy quality to be measured.
The above-mentioned packed paddy composition method for quick based near infrared spectrum, described step a is specially:
Step a1, employing standard analytical process are measured rice sample, determine the component content of rice sample;
Step a2, rice sample is packed;
The near infrared spectrum of step a3, the packed rice sample that obtains by near infrared spectrometer acquisition step a2;
The near infrared spectrum that step a4, the component content obtained according to step a1 and step a3 obtain, set up linked database.
Rice sample selection component content described in step a1 is different, from the elaboration to substandard products, from the shelf-life scope to expired a plurality of samples;
The wavelength of the described near infrared spectrometer of step a3 is 760nm ~ 980nm or 1000nm ~ 2500nm.
The above-mentioned packed paddy composition method for quick based near infrared spectrum, the wavelength of the described near infrared spectrometer of step b is identical with the described near-infrared spectrum wavelength of step a or wavelength coverage.
The above-mentioned packed paddy composition method for quick based near infrared spectrum, the described packed paddy to be measured of step b and the packed paddy packaging bag of the described standard of step a composition, specification are identical.
The above-mentioned packed paddy composition method for quick based near infrared spectrum, described step c is specially:
Step c1, the to be measured packed paddy near infrared spectrum obtained according to step b, find the near infrared spectrum of the identical or approaching packed rice sample of standard in the linked database obtained at step a;
The near infrared spectrum of step c2, the packed rice sample of standard that finds according to step c1, utilize the component content of the known packed rice sample of standard, determines packed paddy component content to be measured.
The above-mentioned packed paddy composition method for quick based near infrared spectrum, the described evaluation of steps d packed paddy quality to be measured for the grade of distinguishing packed paddy, judge that whether packed paddy qualified.
Described judge packed paddy whether qualified for the farm chemical ingredients content that judges packed paddy whether exceed standard or packed paddy whether expired.
The above-mentioned packed paddy composition method for quick based near infrared spectrum, paddy is long-grain nonglutinous rice, japonica rice paddy or glutinous rice.
Due to the packed paddy composition method for quick that the present invention is based near infrared spectrum, due to the direct packed rice sample component content of Criterion and near infrared spectrum linked database, therefore can eliminate the impact of packaging bag on testing result without detecting separately packaging bag, improve detection efficiency; Owing to being designed with the step of estimating packed paddy quality to be measured according to packed paddy component content to be measured, therefore can directly carry out grade classification to packed paddy according to testing result or judge whether qualifiedly, make the conclusion of testing result representative very clear.
The accompanying drawing explanation
Fig. 1 is the packed paddy composition method for quick process flow diagram that the present invention is based near infrared spectrum.
Fig. 2 is the packed paddy composition method for quick process flow diagram of having set up after linked database.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the invention is described in further detail.
Specific embodiment one
The present embodiment is the detection method while also there is no the packed rice sample component content of Criterion and near infrared spectrum linked database.
As shown in Figure 1, the method comprises the following steps the packed paddy composition method for quick process flow diagram based near infrared spectrum of the present embodiment:
Step a, the packed rice sample component content of Criterion and near infrared spectrum linked database;
Be specially:
Step a1, employing standard analytical process are measured rice sample, determine the component content of rice sample; Wherein, described rice sample selection component content different, from the elaboration to substandard products, from the shelf-life scope to expired a plurality of samples;
Step a2, rice sample is packed;
The near infrared spectrum of step a3, the packed rice sample that obtains by near infrared spectrometer acquisition step a2; The wavelength of described near infrared spectrometer is 760nm ~ 980nm;
The near infrared spectrum that step a4, the component content obtained according to step a1 and step a3 obtain, set up linked database.
Step b, employing near infrared spectrometer obtain packed paddy near infrared spectrum to be measured;
The linked database that the to be measured packed paddy near infrared spectrum that step c, comparison step b obtain and step a obtain, the described packed paddy component content to be measured of calculation procedure b;
Be specially:
Step c1, the to be measured packed paddy near infrared spectrum obtained according to step b, find the near infrared spectrum of the identical or approaching packed rice sample of standard in the linked database obtained at step a;
The near infrared spectrum of step c2, the packed rice sample of standard that finds according to step c1, utilize the component content of the known packed rice sample of standard, determines packed paddy component content to be measured.
Steps d, the to be measured packed paddy component content obtained according to step c are estimated packed paddy quality to be measured.
The above-mentioned packed paddy composition method for quick based near infrared spectrum, the wavelength of the described near infrared spectrometer of step b is identical with the described near-infrared spectrum wavelength of step a or wavelength coverage, be 760nm ~ 980nm, can further reduce due to the impact of wavelength difference on testing result.
The above-mentioned packed paddy composition method for quick based near infrared spectrum, it is characterized in that the described packed paddy to be measured of step b and the packed paddy packaging bag of the described standard of step a composition, specification are identical, can further reduce the impact of the testing result of packaging bag.
The above-mentioned packed paddy composition method for quick based near infrared spectrum, it is characterized in that the described evaluation of steps d packed paddy quality to be measured for the grade of distinguishing packed paddy, judge that whether packed paddy qualified.
Described judge packed paddy whether qualified for the farm chemical ingredients content that judges packed paddy whether exceed standard or packed paddy whether expired.
The above-mentioned packed paddy composition method for quick based near infrared spectrum, is characterized in that paddy is long-grain nonglutinous rice, japonica rice paddy or glutinous rice.
Specific embodiment two
The present embodiment is the detection method while also there is no the packed rice sample component content of Criterion and near infrared spectrum linked database.
The wavelength of the described near infrared spectrometer that do not coexist of the present embodiment and specific embodiment one is 1000nm ~ 2500nm, and penetration power is stronger, further reduces the impact of packaging bag on testing result.
Specific embodiment three
The present embodiment is detection method when the packed rice sample component content of Criterion and near infrared spectrum linked database.Due to without setting up linked database, so detection efficiency is higher again.
As shown in Figure 2, the method comprises the following steps the packed paddy composition method for quick process flow diagram based near infrared spectrum of the present embodiment:
Step b, employing near infrared spectrometer obtain packed paddy near infrared spectrum to be measured;
The linked database that the to be measured packed paddy near infrared spectrum that step c, comparison step b obtain and step a obtain, the described packed paddy component content to be measured of calculation procedure b;
Be specially:
Step c1, the to be measured packed paddy near infrared spectrum obtained according to step b, find the near infrared spectrum of the identical or approaching packed rice sample of standard in the linked database obtained at step a;
The near infrared spectrum of step c2, the packed rice sample of standard that finds according to step c1, utilize the component content of the known packed rice sample of standard, determines packed paddy component content to be measured.
Steps d, the to be measured packed paddy component content obtained according to step c are estimated packed paddy quality to be measured.
The above-mentioned packed paddy composition method for quick based near infrared spectrum, the wavelength of the described near infrared spectrometer of step b is identical with the described near-infrared spectrum wavelength of step a or wavelength coverage, be 760nm ~ 980nm, can further reduce due to the impact of wavelength difference on testing result.
The above-mentioned packed paddy composition method for quick based near infrared spectrum, it is characterized in that the described packed paddy to be measured of step b and the packed paddy packaging bag of the described standard of step a composition, specification are identical, can further reduce the impact of the testing result of packaging bag.
The above-mentioned packed paddy composition method for quick based near infrared spectrum, it is characterized in that the described evaluation of steps d packed paddy quality to be measured for the grade of distinguishing packed paddy, judge that whether packed paddy qualified.
Described judge packed paddy whether qualified for the farm chemical ingredients content that judges packed paddy whether exceed standard or packed paddy whether expired.
The above-mentioned packed paddy composition method for quick based near infrared spectrum, is characterized in that paddy is long-grain nonglutinous rice, japonica rice paddy or glutinous rice.
Specific embodiment four
The present embodiment is detection method when the packed rice sample component content of Criterion and near infrared spectrum linked database.
The wavelength of the described near infrared spectrometer that do not coexist of the present embodiment and specific embodiment three is 1000nm ~ 2500nm, and penetration power is stronger, further reduces the impact of packaging bag on testing result.
Claims (10)
1. the packed paddy composition method for quick based near infrared spectrum is characterized in that comprising the following steps:
Step a, the packed rice sample component content of Criterion and near infrared spectrum linked database;
Step b, employing near infrared spectrometer obtain packed paddy near infrared spectrum to be measured;
The linked database that the to be measured packed paddy near infrared spectrum that step c, comparison step b obtain and step a obtain, the described packed paddy component content to be measured of calculation procedure b;
Steps d, the to be measured packed paddy component content obtained according to step c are estimated packed paddy quality to be measured.
2. the packed paddy composition method for quick based near infrared spectrum according to claim 1 is characterized in that described step a is specially:
Step a1, employing standard analytical process are measured rice sample, determine the component content of rice sample;
Step a2, rice sample is packed;
The near infrared spectrum of step a3, the packed rice sample that obtains by near infrared spectrometer acquisition step a2;
The near infrared spectrum that step a4, the component content obtained according to step a1 and step a3 obtain, set up linked database.
3. the packed paddy composition method for quick based near infrared spectrum according to claim 2, it is characterized in that the rice sample selection component content described in step a1 different, from the elaboration to substandard products, from the shelf-life scope to expired a plurality of samples.
4. the packed paddy composition method for quick based near infrared spectrum according to claim 2, the wavelength that it is characterized in that the described near infrared spectrometer of step a3 is 760nm ~ 980nm or 1000nm ~ 2500nm.
5. the packed paddy composition method for quick based near infrared spectrum according to claim 1, is characterized in that the wavelength of the described near infrared spectrometer of step b is identical with the described near-infrared spectrum wavelength of step a or wavelength coverage.
6. the packed paddy composition method for quick based near infrared spectrum according to claim 1, is characterized in that the described packed paddy to be measured of step b and the packed paddy packaging bag of the described standard of step a composition, specification are identical.
7. the packed paddy composition method for quick based near infrared spectrum according to claim 1 is characterized in that described step c is specially:
Step c1, the to be measured packed paddy near infrared spectrum obtained according to step b, find the near infrared spectrum of the identical or approaching packed rice sample of standard in the linked database obtained at step a;
The near infrared spectrum of step c2, the packed rice sample of standard that finds according to step c1, utilize the component content of the known packed rice sample of standard, determines packed paddy component content to be measured.
8. the packed paddy composition method for quick based near infrared spectrum according to claim 1, it is characterized in that the described evaluation of steps d packed paddy quality to be measured for the grade of distinguishing packed paddy, judge that whether packed paddy qualified.
9. the packed paddy composition method for quick based near infrared spectrum according to claim 8, it is characterized in that described judge packed paddy whether qualified for the farm chemical ingredients content that judges packed paddy whether exceed standard or packed paddy whether expired.
10. the packed paddy composition method for quick based near infrared spectrum according to claim 1, is characterized in that paddy is long-grain nonglutinous rice, japonica rice paddy or glutinous rice.
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Cited By (4)
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| CN105181643A (en) * | 2015-10-12 | 2015-12-23 | 华中农业大学 | Near-infrared inspection method for rice quality and application thereof |
| CN105572070A (en) * | 2014-10-15 | 2016-05-11 | 中粮生化能源（肇东）有限公司 | Detection method of content of component in plant and application thereof and detection method of quality of plant sample |
| CN106124451A (en) * | 2016-08-31 | 2016-11-16 | 上海创和亿电子科技发展有限公司 | A kind of update the system and method for detection that through packaging bag, product is carried out On-line near infrared analyzer detection |
| CN110785661A (en) * | 2017-04-21 | 2020-02-11 | 英索特有限公司 | Method for detecting rancidity in oil-containing fruits, seeds and nuts |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105572070A (en) * | 2014-10-15 | 2016-05-11 | 中粮生化能源（肇东）有限公司 | Detection method of content of component in plant and application thereof and detection method of quality of plant sample |
| CN105181643A (en) * | 2015-10-12 | 2015-12-23 | 华中农业大学 | Near-infrared inspection method for rice quality and application thereof |
| CN105181643B (en) * | 2015-10-12 | 2018-03-02 | 华中农业大学 | A kind of near infrared detection method of rice quality and application |
| CN106124451A (en) * | 2016-08-31 | 2016-11-16 | 上海创和亿电子科技发展有限公司 | A kind of update the system and method for detection that through packaging bag, product is carried out On-line near infrared analyzer detection |
| CN110785661A (en) * | 2017-04-21 | 2020-02-11 | 英索特有限公司 | Method for detecting rancidity in oil-containing fruits, seeds and nuts |
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