CN108318446A - It is a kind of detection the total content of vitamin E of peanut seed near-infrared spectroscopy and application - Google Patents

It is a kind of detection the total content of vitamin E of peanut seed near-infrared spectroscopy and application Download PDF

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Publication number
CN108318446A
CN108318446A CN201810332458.5A CN201810332458A CN108318446A CN 108318446 A CN108318446 A CN 108318446A CN 201810332458 A CN201810332458 A CN 201810332458A CN 108318446 A CN108318446 A CN 108318446A
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Prior art keywords
peanut
vitamin
total content
model
sample
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王传堂
唐月异
胡东青
王秀贞
刘婷
吴琪
孙全喜
王志伟
张建成
杜祖波
李秋
宋国生
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Shandong Peanut Research Institute
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Shandong Peanut Research Institute
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/359Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using near infrared light

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  • Spectroscopy & Molecular Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
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  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
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  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

The invention discloses a kind of near-infrared spectroscopy of the detection total content of vitamin E of peanut seed, the construction method of the model and using the method for the model inspection peanut seed, belong to peanut processing product quality quick test technique field.Near-infrared spectroscopy of the present invention is to be fitted spectral manipulation by the near infrared spectrum data of collection sample and using the HPLC chemical scores measured, and Partial Least Squares optimization is used in combination to establish model;Cross-validation abnormal value elimination is used repeatedly, best Pretreated spectra method, optimized spectrum area, dimension is selected, by comparing the coefficient of determination (R of model2) and root mean square deviation (RMSECV) measurement model quality, construct the Near-Infrared Quantitative Analysis model of high quality.The total content of vitamin E near-infrared model R of peanut seed of natural air drying constructed by the present invention2Higher, RMSECV is smaller, and prediction effect is preferable, and new selection approach is provided to cultivate homovitamin E peanut varieties.

Description

It is a kind of detection the total content of vitamin E of peanut seed near-infrared spectroscopy and application
Technical field
The invention belongs to peanut processing product quality quick test technique fields, and in particular to a kind of total vitamin of detection peanut seed The near-infrared spectroscopy of E contents and application.
Background technology
Peanut is the important sources of main oil crops and quality plant oil and high digestibility protein in the world. Vitamin E is a kind of natural, is the important liposoluble vitamin of body, has strengthen immunity, anti-aging, drop The effect of low angiocardiopathy and cancer morbidity.Contain vitamin E in peanut, studies have found that the flower that blue Na type kind is squeezed Oil generation stability is stronger, thus it is speculated that reason is that it contains more vitamin E.Content of vitamin E in peanut seed is improved, not only It is closely bound up with health, and might have the shelf life for helping extend (Groundnut products).
Traditional assay method of vitamin E includes fluorescent spectrometry, high performance liquid chromatography, blocks method, gas chromatography Deng, of high cost, time-consuming, have certain destructiveness, this also hinders the development of peanut homovitamin E breedings to a certain extent, And near infrared technology have many advantages, such as it is at low cost, lossless, quick.Near infrared technology has been applied to the quality-improving of various crop, The near-infrared model of energy Accurate Prediction oleic acid, fat, protein content, but similar peanut dimension life have been successfully established on peanut Plain E contents near-infrared model has not been reported so far.
Invention content
Purpose of the present invention is to utilize near infrared spectrometer, accurate quantitative analysis is carried out to the total content of vitamin E of peanut seed.It is wherein described The total content of vitamin E of peanut seed refers to the sum of alpha-tocopherol, Gamma-Tocopherol and-methyltocol content.
In order to achieve the above object, the technical scheme is that:
A kind of near-infrared spectroscopy of the detection total content of vitamin E of peanut seed, it is built-up by following methods:
(1) peanut sample of different cultivars, solar drying are collected;
(2) near infrared ray is carried out to above-mentioned peanut sample, collects near infrared light spectrum information;
(3) the total content of vitamin E for detecting all peanut samples, obtains the chemical score of total content of vitamin E;
(4) near infrared spectrum data acquired in the chemical score of total content of vitamin E and (2) is fitted at spectrum Reason establishes model with Partial Least Squares optimization, uses cross-validation abnormal value elimination repeatedly, by comparing determining for model Determine coefficient (R2) and root mean square deviation (RMSECV) measurement model quality, screen best model;
(5) accuracy of model is verified.
On the basis of said program, the near infrared spectrum scanning parameter is:Scanning Spectral range 4000~ 12000cm-1(centimetre wave number), scanning times 64 times, resolution ratio 8cm-1
On the basis of said program, the peanut sample is:
On the basis of said program, the chemical score of the total content of vitamin E of peanut sample is with predicted value:
On the basis of said program, the optimal spectrum preprocess method of the model is that " first derivative+polynary scattering is rectified Just ", Spectral range is 7506~6094.3cm-1, 5454~4242.8cm-1, dimension 8, the R of model2It is 88.34, RMSECV It is 0.423.
On the basis of said program, the near infrared spectrum scanning, each sample 30-50, multiple scanning 3 times, and And peanut is poured out when scanning for the second time and for the third time and is reloaded in specimen cup, to obtain multiple near-infrareds of same sample Spectrum.
The near-infrared spectroscopy of the above-mentioned total content of vitamin E of detection peanut seed is in the total content of vitamin E of peanut seed Application in detection.
A method of the detection total content of vitamin E of peanut seed, steps are as follows:
(1) peanut sample to be measured is fitted into circular sample cup;
(2) sample is scanned one by one, near infrared spectrum scanning parameter is:Scan 4000~12000cm of Spectral range-1 (centimetre wave number), scanning times 64 times, resolution ratio 8cm-1
(3) (2) collected peanut seed near infrared spectrum data to be measured above-mentioned near-infrared spectroscopy is imported to obtain The total content of vitamin E of peanut.
Beneficial effects of the present invention:
The near-infrared spectroscopy of the detection total content of vitamin E of peanut seed provided by the invention, can quickly, it is accurate, The content of total vitamin E in lossless detection peanut, and it is easy to operate, accuracy is high, which is checked using wild-type peanut sample The prediction effect of type is found:Total content of vitamin E deviation is -0.59~0.76mg/100g.To predicted value and chemical score carry out at Data t is test, two groups of data mean value differences are 0.101, degree of freedom 5, and t values are 0.545<t0.05=2.571, two groups of data differences It is different not notable.
The total content of vitamin E near-infrared model R of peanut seed of natural air drying constructed by the present invention2It is higher, RMSECV Smaller, prediction effect is preferable, naturally and induced mutant for identification homovitamin E peanuts, the research total content of vitamin E of peanut Genetic development, hybrid vigour and coordinate force, and cultivate homovitamin E peanut varieties and provide new technological means.
Near-infrared spectroscopy data used when depending on establishing model to the prediction effect of sample.Moreover, establishing close Infrared spectrum model is not that the sample number that uses is The more the better, introduced dry in model with the increase of modeling sample number Disturbing factor and anomalous differences will increase, and excessive interference information can cover useful information, reduce model performance.The present invention selects Peanut sample size it is suitable, the compatible degree between different cultivars is preferable, and the constructed total vitamin E of model prediction peanut seed contains It is small to measure error, accuracy is high.
Description of the drawings
The infrared diaphanoscopy spectrogram of Fig. 1 peanut samples, wherein abscissa represent centimetre wave number (cm-1), ordinate represents Absorbance;
The near-infrared predicted value of the total content of vitamin E of Fig. 2 and chemical score scatter plot, wherein abscissa represent chemical score, indulge Coordinate represents predicted value.
Specific implementation mode
Term as used in the present invention generally has those of ordinary skill in the art usual unless otherwise specified The meaning of understanding.
With reference to specific embodiment, and with reference to the data further detailed description present invention.Following embodiment only be It illustrates the present invention, rather than limits the scope of the invention in any way.
Embodiment
Illustrate by taking the MATRIX-I type near infrared spectrometers of German Brooker company production as an example below, but the patent scope of application Also include the similar products of other manufacturers.
1. materials and methods
1.1 material
The test material used in total vitamin E model is built, is to amount to 42 parts from peanut varieties both domestic and external (being), As shown in table 1.
Table 1 builds peanut seed sample used in peanut content of vitamin E near-infrared model
1.2 method
1.2.1 spectra collection
The I type Fourier transforms of Matrix- that modeling spectroscopic data used is produced in German Brooker spectral instrument company It is acquired near infrared spectrometer.Scanning spectrum area ranging from 4000~12000cm-1(centimetre wave number), scanning times 64 times, resolution ratio For 8cm-1.Sample is detected after booting preheating 30min.The sample that peanut seed is dried for natural daylight used in acquisition spectrum, every part Material about 30-50, multiple scanning 3 times.The results are shown in Figure 1 for the near infrared spectrum scanning of peanut sample.
1.2.2 total content of vitamin E measures
Total content of vitamin E in 42 parts of Ecological Property of Peanut Seeds samples is measured using HPLC methods, sample chemical value relevant parameter is shown in Table 2.Total content of vitamin E mean value is 10.97mg/100g, and maximum, minimum value is respectively 17.10mg/100g, 8.21mg/ 100g.Show that the modeling total content of vitamin E luffing of peanut sample is fine, can be used for near-infrared spectroscopy structure.
The total content of vitamin E chemical score pertinent statistical parameters of 2 peanut seed of table
1.2.3 model construction and optimization
Spectral manipulation and model construction use 5.5 softwares of OPUS of German I type near infrared spectrometers of Brooker Matrix-, It is optimized with NIR options.Model is established with Partial Least Squares (PLS methods) optimization, is rejected using cross-validation unusual It is worth (outlier).Optimal spectrum pretreatment method, optimized spectrum area, dimension are selected, and makees further verification.By comparing model The coefficient of determination (R2) and root mean square deviation (RMSECV) measurement model quality.The chemical score of each sample peanut and predicted value such as table 3 It is shown.
The chemical score and predicted value of the 3 total content of vitamin E of each sample peanut of table
By optimization, the optimal spectrum preprocess method of the total content of vitamin E of peanut seed is " first derivative+polynary scattered Penetrate correction ".Spectral range is 7506~6094.3cm-1, 5454~4242.8cm-1, dimension 8, the R of model2It is 88.34, RMSECV is 0.423 (Fig. 2).
1.2.4 the verification of model
Another to take 6 especially portion's peanut sample (being wild species sample), testing model prediction effect, the results are shown in Table 4.Always Content of vitamin E deviation is -0.59~0.76mg/100g.Paired data t tests, two groups of numbers are carried out to chemical score and predicted value It is 0.101 according to equal value difference, degree of freedom 5, t values are 0.545<t0.05=2.571, two groups of data differences are not notable.Although wild Kind sample has neither part nor lot in modeling, and larger with the sub- benevolence size difference of cultigen peanut, also achieves preferable prediction effect.
The total content of vitamin E chemical score of 4 peanut seed sample of table is compared with predicted value
The above described is only a preferred embodiment of the present invention, being not that the invention has other forms of limitations, appoint What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc. Imitate embodiment.But it is every without departing from technical solution of the present invention content, according to the technical essence of the invention to above example institute Any simple modification, equivalent variations and the remodeling made, still fall within the protection domain of technical solution of the present invention.

Claims (8)

1. a kind of near-infrared spectroscopy of the detection total content of vitamin E of peanut seed, it is characterised in that:It is built by following methods It forms:
(1) peanut sample of different cultivars, solar drying are collected;
(2) near infrared ray is carried out to above-mentioned peanut sample, collects near infrared light spectrum information;
(3) the total content of vitamin E for detecting all peanut samples, obtains the chemical score of total content of vitamin E;
(4) spectral manipulation is fitted to the near infrared spectrum data acquired in the chemical score of total content of vitamin E and (2), used Model is established in Partial Least Squares optimization, cross-validation abnormal value elimination is used repeatedly, by comparing the decision system of model Number (R2) and root mean square deviation (RMSECV) measurement model quality, screen best model;
(5) accuracy of model is verified.
2. detecting the near-infrared spectroscopy of the total content of vitamin E of peanut seed according to claim 1, it is characterised in that:
The near infrared spectrum scanning parameter is:Scan 4000~12000cm of Spectral range-1(centimetre wave number), scanning times 64 It is secondary, resolution ratio 8cm-1
3. the near-infrared spectroscopy of the detection total content of vitamin E of peanut seed according to claim 1 or claim 2, feature exist In:
The peanut sample is:
The chemical score of the total content of vitamin E of peanut sample is with predicted value:
4. detecting the near-infrared spectroscopy of the total content of vitamin E of peanut seed according to claim 3, it is characterised in that: The optimal spectrum preprocess method of the model be " first derivative+polynary scatter correction ", Spectral range be 7506~ 6094.3cm-1, 5454~4242.8cm-1, dimension 8, the R of model2For 88.34, RMSECV 0.423.
5. according to the near-infrared spectroscopy of any one of Claims 1 to 4 detection total content of vitamin E of peanut seed, It is characterized in that:The near infrared spectrum scanning, each sample 30-50, multiple scanning 3 times, and second is swept with third time Peanut is poured out when retouching and is reloaded in specimen cup, to obtain multiple near infrared spectrums of same sample.
6. the near-infrared spectroscopy of any one of Claims 1 to 5 detection total content of vitamin E of peanut seed is in peanut kind Application in sub total content of vitamin E detection.
7. a kind of method of the detection total content of vitamin E of peanut seed, it is characterised in that:Obtain peanut sample near infrared light to be measured Modal data, and near infrared spectrum data is imported into any one of the Claims 1 to 5 near-infrared spectroscopy and show that peanut is always tieed up Raw element E contents.
8. the method for detecting the total content of vitamin E of peanut seed according to claim 7, it is characterised in that:Steps are as follows:
(1) peanut sample to be measured is fitted into circular rotating specimen cup;
(2) sample is scanned one by one, near infrared spectrum scanning parameter is:Scan 4000~12000cm of Spectral range-1(li Metric wave number), scanning times 64 times, resolution ratio 8cm-1
(3) any one of (2) collected peanut seed near infrared spectrum data importing Claims 1 to 5 to be measured is described close red External spectrum model obtains the total content of vitamin E of peanut.
CN201810332458.5A 2018-04-13 2018-04-13 It is a kind of detection the total content of vitamin E of peanut seed near-infrared spectroscopy and application Pending CN108318446A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113390823A (en) * 2021-06-29 2021-09-14 青岛新嘉生物技术有限公司 Near-infrared rapid prediction method for vitamin premix
CN114935548A (en) * 2022-07-20 2022-08-23 联桥网云信息科技(长沙)有限公司 One-time operation detection method for detecting multiple types of indexes of oil sample
CN114965353A (en) * 2022-05-19 2022-08-30 中国农业科学院农产品加工研究所 Intelligent screening and processing method of special raw materials for high-quality peanut butter

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CN104502475A (en) * 2014-12-12 2015-04-08 山东省花生研究所 Simple method for extracting and determining peanut fatty acids

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CN104502475A (en) * 2014-12-12 2015-04-08 山东省花生研究所 Simple method for extracting and determining peanut fatty acids

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113390823A (en) * 2021-06-29 2021-09-14 青岛新嘉生物技术有限公司 Near-infrared rapid prediction method for vitamin premix
CN114965353A (en) * 2022-05-19 2022-08-30 中国农业科学院农产品加工研究所 Intelligent screening and processing method of special raw materials for high-quality peanut butter
CN114935548A (en) * 2022-07-20 2022-08-23 联桥网云信息科技(长沙)有限公司 One-time operation detection method for detecting multiple types of indexes of oil sample

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Application publication date: 20180724