CN103792221A - Method for quickly identifying storage time of yellow rice wine based on Raman spectrum - Google Patents
Method for quickly identifying storage time of yellow rice wine based on Raman spectrum Download PDFInfo
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- CN103792221A CN103792221A CN201410044707.2A CN201410044707A CN103792221A CN 103792221 A CN103792221 A CN 103792221A CN 201410044707 A CN201410044707 A CN 201410044707A CN 103792221 A CN103792221 A CN 103792221A
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Abstract
本发明公开一种基于拉曼光谱的黄酒酒龄快速鉴别的方法，即首先建立黄酒酒龄鉴别模型，然后将待测黄酒样品摇匀，取1ml置于拉曼光谱分析系统的5mm光程比色皿中；利用拉曼光谱分析系统采集待测黄酒样品谱图信息，得到待测黄酒样品的拉曼光谱谱图；将获得的待测黄酒样品的拉曼光谱调入预先建立的黄酒酒龄鉴别模型，从而得出待测黄酒样品的酒龄。本发明的一种基于拉曼光谱的黄酒酒龄快速鉴别的方法鉴别正确率高、操作简单，与传统感官评价法和高效液相色谱法相比，检测时间短、费用低，是黄酒酒龄快速鉴别的新方法。
The invention discloses a method for rapidly identifying the age of rice wine based on Raman spectrum, that is, firstly establishing a model for identifying the age of rice wine, then shaking the sample of rice wine to be tested, taking 1ml and placing it in a Raman spectrum analysis system with an optical path ratio of 5mm In the color dish; use the Raman spectrum analysis system to collect the spectrum information of the rice wine sample to be tested to obtain the Raman spectrum spectrum of the rice wine sample to be tested; transfer the obtained Raman spectrum of the rice wine sample to be tested into the pre-established rice wine age Identify the model, thereby obtaining the wine age of the rice wine sample to be tested. The method for rapidly identifying the wine age of rice wine based on Raman spectrum of the present invention has high identification accuracy and simple operation. A new method of identification.
Description
Technical field
The invention belongs to food analysis field, relate in particular to a kind of age of Chinese rice wine based on Raman spectrum method for distinguishing that reflects fast.
Background technology
Yellow rice wine with gentle, mellow and full, low, nutrition and health care and famous, is familiar with, accepts and like by increasing consumer gradually.The yellow rice wine pungent of new brew is heavier, coarse mouthfeel, fragrance deficiency; And through ageing, between inner each composition, there are association, esterification, redox reaction, condensation reaction etc., its taste become more alcohol and, soft and graceful, plentiful, fresh refreshing, and fragrance is comfortable.Thereby, become one of major way of judging yellow rice wine quality wine storage time.But there is the phenomenon that wine storage time, information did not square with the fact in yellow rice wine market.Wine storage time has not only been invaded consumers' rights and interests in false, and has upset yellow rice wine market.Thereby, need a kind of analytical approach badly and differentiate fast age of Chinese rice wine.
At present, age of Chinese rice wine is differentiated take sensory evaluation as main, or is adopted high performance liquid chromatography, gas chromatography-mass spectrography analytical technology to carry out in conjunction with chemometrics method.Sensory evaluation only has and judges personnel through the specialty of training and could correct evaluate, and it is loaded down with trivial details and be not suitable for the shortcoming of express-analysis that conventional instrument analytical approach has complicated operation, pre-service; Near-infrared spectral analysis technology differentiates that at age of Chinese rice wine also there is application in field, is a kind of fast non-destructive detection method.But hydrone is large near infrared spectrum district absorption intensity, for extracting, effective information brings interference.
Raman spectrum analysis technology is the vibration of analyzing molecules or the spectral technique of rotation information.Hydrone does not have stretching vibration frequency band in Raman spectrum district, thereby Raman spectrum analysis technology is applicable to the analysis of water solution system.
Summary of the invention
The object of the invention is to provide in order to solve above-mentioned technical matters a kind of age of Chinese rice wine based on Raman spectrum method for distinguishing that reflects fast, the method have the accuracy of discriminating high, simple to operate, differentiate fast, the feature such as testing cost is low.
Technical scheme of the present invention
Age of Chinese rice wine based on the Raman spectrum method for distinguishing that reflects fast, specifically comprises the steps:
(1), age of Chinese rice wine differentiates the foundation of model, comprise the following steps:
1., collect wine storage time clear and definite yellow rice wine as the standard model collection of setting up age of Chinese rice wine and differentiate model;
2., each standard model shakes up, and gets 1ml and be placed in the 5mm light path cuvette of Raman spectrum analysis system;
3., by the spectrogram information of yellow rice wine standard model collection Raman spectrum analysis system acquisition corresponding different wine storage time, obtain the Raman spectrum spectrogram of corresponding different wine storage time of the yellow rice wine standard model collection;
4. the age of Chinese rice wine based on step Raman spectrum 3. that, adopts techniques of discriminant analysis to set up corresponding different wine storage time of the yellow rice wine standard model collection is differentiated model;
(2), yellow rice wine sample to be measured is shaken up, get 1ml and be placed in the 5mm light path cuvette of Raman spectrum analysis system;
(3), utilize Raman spectrum analysis system acquisition yellow rice wine sample to be measured spectrogram information, obtain the Raman spectrum spectrogram of yellow rice wine sample to be measured;
(4) Raman spectrum of the yellow rice wine sample to be measured, step (3) being obtained is called in and is utilized the age of Chinese rice wine that step (1) is set up to differentiate model, the wine storage time that prediction draws yellow rice wine sample to be measured.
Beneficial effect of the present invention
A kind of age of Chinese rice wine based on Raman spectrum of the present invention method for distinguishing that reflects fast, owing to having adopted Raman spectrum analysis system, therefore, compared with traditional sensory evaluation method, the detection time of cost is shorter; Compared with the methods such as traditional high performance liquid chromatography, improve detection efficiency, reduce testing cost; Compared with near-infrared spectral analysis technology, be greatly improved for the antijamming capability of water.
In addition, a kind of age of Chinese rice wine based on Raman spectrum of the present invention reflect fast method for distinguishing have differentiate that accuracy is high, simple to operate, differentiate fast, feature that testing cost is low.
Accompanying drawing explanation
Fig. 1,1 year be old, the average spectrogram of Raman spectrum of 3 years old, 5 years old and 8 years old yellow rice wine standard model collection;
The discriminatory analysis classification chart of the old and 3 years old yellow rice wine standard model collection of Fig. 2,1 year;
The discriminatory analysis classification chart of the old and 5 years old yellow rice wine standard model collection of Fig. 3,1 year;
The discriminatory analysis classification chart of the old and 8 years old yellow rice wine standard model collection of Fig. 4,1 year;
The discriminatory analysis classification chart of the old and 5 years old yellow rice wine standard model collection of Fig. 5,3 years;
The discriminatory analysis classification chart of the old and 8 years old yellow rice wine standard model collection of Fig. 6,3 years;
The discriminatory analysis classification chart of the old and 5 years old yellow rice wine standard model collection of Fig. 7,5 years.
Embodiment
Also by reference to the accompanying drawings the present invention is further set forth below by specific embodiment, but do not limit the present invention.
Age of Chinese rice wine based on the Raman spectrum method for distinguishing that reflects fast, specifically comprises the steps:
(1), age of Chinese rice wine differentiates the foundation of model, comprise the following steps:
1., collect 5 bottles, 5 bottles, 5 years old yellow rice wine samples of 5 bottles, 3 years old yellow rice wine samples of 1 year old yellow rice wine sample certain brewery clear and definite wine storage time and 5 bottles of conducts of 8 years old yellow rice wine samples and set up age of Chinese rice wine and differentiate the standard model collection of model;
2., step each standard model 1. shakes up, and gets respectively 1ml and be placed in the 5mm light path cuvette of Raman spectrum analysis system;
3., with the Raman spectrum analysis system Raman spectrum of old, 3 years old, 5 years old and 8 years old yellow rice wine standard model collection of the correspondence in the 5mm light path cuvette of acquisition step in 2. 1 year respectively, the correspondence that obtains respectively 1 year is old, the average spectrogram of Raman spectrum of 3 years old, 5 years old and 8 years old yellow rice wine standard model collection as shown in Figure 1;
As can be seen from Figure 1: 1 year old, 3 years old, the 5 years average spectrogram trend of Raman spectrum old and 8 years old yellow rice wine standard model collection is consistent, but absorption intensity difference;
Above-mentioned Raman spectrum analysis system is LabRAM HR Evolution Raman spectrometer (HORIBA Jobin Yvon), gathering different yellow rice wine standard model Raman spectrums wine storage time running parameter used is: grating 600g/mm, acquisition time: 5s, accumulative frequency: 9, use 50x LWD, camera lens gathers, wavelength coverage 100-3050cm
-1;
4. the age of Chinese rice wine based on Raman spectrum that, adopts techniques of discriminant analysis to set up yellow rice wine standard model collection is differentiated model, result is as shown in Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 and Fig. 7, and Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 and Fig. 7 are respectively the discriminatory analysis classification chart of 1 year old and 3 years old, 1 year old and 5 years old, 1 year old and 8 years old, 3 years old and 5 years old, 3 years old and 8 years old, 5 years old and 8 years old yellow rice wine standard model collection;
Can find out respectively from Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 and Fig. 7: 1 year old and 3 years old, 1 year old and 5 years old, 1 year old and 8 years old, 3 years old and 5 years old, 3 years old and 8 years old, 5 years old and oldly distinguish preferably between two for 8 years, can show that 1 year old, 3 years old, 5 years old and 8 years old discriminating accuracy is respectively 100%, 100%, 100% and 100%, show thus, above-mentioned built age of Chinese rice wine differentiates that model performance is sane, accuracy rate is high, can be for the prediction of age of Chinese rice wine to be measured;
(2), 5 years of commercially available certain production to be measured old yellow rice wine samples are shaken up, get 1ml and be placed in the 5mm light path cuvette of Raman spectrum analysis system;
(3), utilize this yellow rice wine sample spectrogram information to be measured of Raman spectrum analysis system acquisition, obtain the Raman spectrum spectrogram of this yellow rice wine sample to be measured;
Above-mentioned Raman spectrum analysis system is LabRAM HR Evolution Raman spectrometer (HORIBA Jobin Yvon), gathering different yellow rice wine standard model Raman spectrums wine storage time running parameter used is: grating 600g/mm, acquisition time: 5s, accumulative frequency: 9, use 50x LWD, camera lens gathers, wavelength coverage 100-3050cm
-1;
(4), the Raman spectrum of this yellow rice wine sample to be measured that step (3) is obtained calls in and utilizes the age of Chinese rice wine that step (1) is set up to differentiate model, be 5 years wine storage time that draws yellow rice wine sample to be measured.
Utilize sensory evaluation method (GB/T 13662-2000) to judge that be 5 years the wine storage time of this yellow rice wine sample to be measured.The method for distinguishing and the age of Chinese rice wine of above-mentioned employing of the present invention based on Raman spectrum reflects fast, only need several seconds time to complete, and final judged result is consistent with result wine storage time of the yellow rice wine sample to be measured of sensory evaluation method gained, show thus a kind of age of Chinese rice wine based on Raman spectrum of the present invention reflect fast method for distinguishing have advantages of differentiate required time short, differentiate accuracy rate high.
In sum, a kind of age of Chinese rice wine method for quick identification based on Raman spectrum of the present invention, owing to having adopted Raman spectrum analysis system, therefore, compared with traditional sensory evaluation method, the detection time of cost is shorter; Compared with the methods such as traditional high performance liquid chromatography, improve detection efficiency, reduce testing cost; Compared with near-infrared spectral analysis technology, be greatly improved for the antijamming capability of water.In addition, a kind of age of Chinese rice wine method for quick identification based on Raman spectrum of the present invention has the advantages that to differentiate that accuracy is high, simple to operate, discriminating is quick, testing cost is low.
Foregoing is only the basic explanation of the present invention under conceiving, and according to any equivalent transformation that technical scheme of the present invention is done, all should belong to protection scope of the present invention.
Claims (2)
1. the method for distinguishing that reflects fast of the age of Chinese rice wine based on Raman spectrum, is characterized in that specifically comprising the steps:
(1), age of Chinese rice wine differentiates the foundation of model, comprise the following steps:
1., collect wine storage time clear and definite yellow rice wine as the standard model collection of setting up age of Chinese rice wine and differentiate model;
2., each standard model shakes up, and gets 1ml and be placed in the 5mm light path cuvette of Raman spectrum analysis system;
Described Raman spectrum analysis system is Raman spectrometer, and its model is LabRAM HR Evolution, and manufacturer is French HORIBA Jobin Yvon;
3., by the spectrogram information of yellow rice wine standard model collection Raman spectrum analysis system acquisition corresponding different wine storage time, obtain the Raman spectrum spectrogram of corresponding different wine storage time of the yellow rice wine standard model collection;
4. the age of Chinese rice wine based on step Raman spectrum 3. that, adopts techniques of discriminant analysis to set up corresponding different wine storage time of the yellow rice wine standard model collection is differentiated model;
(2), yellow rice wine sample to be measured is shaken up, get 1ml and be placed in the 5mm light path cuvette of Raman spectrum analysis system;
(3), utilize Raman spectrum analysis system acquisition yellow rice wine sample to be measured spectrogram information, obtain the Raman spectrum spectrogram of yellow rice wine sample to be measured;
(4) Raman spectrum of the yellow rice wine sample to be measured, step (3) being obtained is called in and is utilized the age of Chinese rice wine that step (1) is set up to differentiate model, the wine storage time that prediction draws yellow rice wine sample to be measured.
2. a kind of age of Chinese rice wine based on Raman spectrum as claimed in claim 1 method for distinguishing that reflects fast, while it is characterized in that the Raman spectrum of the use Raman spectrum analysis system acquisition yellow rice wine sample 2. and described in step (3) in step (1), Raman spectrum analysis system running parameter used is: grating 600g/mm, acquisition time: 5s, accumulative frequency: 9, use 50x LWD, camera lens collection, wavelength coverage 100-3050cm
-1.
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Cited By (1)
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| CN114018899A (en) * | 2021-11-08 | 2022-02-08 | 哈尔滨工业大学 | Method for identifying alcoholic products from outside the transparent packaging bottle |
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| CN102645502A (en) * | 2012-04-23 | 2012-08-22 | 上海应用技术学院 | Method for detecting age of yellow rice wine by using high-speed gas chromatography type electronic nose fingerprint analysis system |
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| US20040130714A1 (en) * | 2001-03-22 | 2004-07-08 | Werner Gellerman | Optical method and apparatus for determining status of agricultural products |
| CN1789981A (en) * | 2005-12-16 | 2006-06-21 | 浙江大学 | Intelligent device for quickly identifying age of Chinese rice wine based on near infrared spectrum |
| CN101000303A (en) * | 2007-01-15 | 2007-07-18 | 浙江大学 | Quickly non-demage discriminating method and device for marked wine year of bottled yellow rice or millet wine |
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| CN114018899A (en) * | 2021-11-08 | 2022-02-08 | 哈尔滨工业大学 | Method for identifying alcoholic products from outside the transparent packaging bottle |
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Application publication date: 20140514 |