Spectral fingerprint identification method for milk, mare milk, camel milk, goat milk and buffalo milk

A technology of spectral fingerprint and identification method, applied in the field of spectral fingerprint identification of camel milk, mare milk, cow milk, goat milk and buffalo milk

Pending Publication Date: 2021-03-19
HUAZHONG AGRI UNIV
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AI Technical Summary

Problems solved by technology

[0004] Mid-infrared spectroscopy is a fast, non-destructive, pollution-free modern technology that can analyze multiple components at the same time, which has b

Method used

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  • Spectral fingerprint identification method for milk, mare milk, camel milk, goat milk and buffalo milk
  • Spectral fingerprint identification method for milk, mare milk, camel milk, goat milk and buffalo milk
  • Spectral fingerprint identification method for milk, mare milk, camel milk, goat milk and buffalo milk

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Embodiment 1

[0026] Instruments and equipment:

[0027] MilkoScan produced by FOSS company TM 7RM milk composition detector (according to the product instruction manual).

[0028] The operation steps are as follows:

[0029] 1) Select a milk sample:

[0030] 100 samples of fresh cow milk, 60 samples of fresh horse milk, 105 samples of fresh camel milk, 73 samples of fresh goat milk and 100 samples of fresh buffalo milk were collected respectively.

[0031] 2) Mid-infrared spectrum collection:

[0032] First dilute the buffalo milk sample with water at a volume ratio of 1:1, then pour the cow milk, mare milk, camel milk, goat milk and buffalo milk samples into cylindrical sampling tubes with a diameter of 3.5 cm and a height of 9 cm to ensure The height of the liquid level is greater than 6cm, and then it is bathed in a water bath at 42°C for 15-20min, and then the solid optical fiber probe is extended into the liquid to suck the sample for detection, and the mid-infrared spectrometer i...

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Abstract

The invention belongs to the field of milk product analysis and particularly relates to a spectral fingerprint identification method for milk, mare milk, camel milk, goat milk and buffalo milk. The invention relates to the intermediate infrared spectroscopy. The method comprises the following steps: 1) taking fresh milk, mare milk, camel milk, goat milk and buffalo milk samples; 2) scanning the samples in a mid-red spectral range to obtain mid-infrared spectral data; 3) preprocessing original mid-infrared spectrum to remove abnormal values; 4) dividing the preprocessed data set into a trainingset and a test set according to a stratified sampling principle; 5) performing dimension reduction processing on the training set to improve the model training speed; 6) establishing a model for distinguishing milk, mare milk, camel milk, goat milk and buffalo milk through 10-fold cross validation by using algorithms such as nearest neighbors on the training set, and evaluating and screening themodel by using the use accuracy, the balance precision and the Kappa coefficient; and 7) estimating the generalization performance of the optimal model.

Description

technical field [0001] The invention belongs to the technical field of milk product analysis, and in particular relates to a spectral fingerprint identification method for distinguishing cow's milk, horse's milk, camel's milk, goat's milk and buffalo's milk. The present invention is related to the field of analysis using infrared spectroscopy to identify ingredients in dairy products. Background technique [0002] Milk is rich in nutrients, complete in ingredients, and easy to digest. It is an irreplaceable essential food for the maintenance of life and development of mammals in the newborn stage. The content and ratio of protein, amino acid, lactose and minerals in mare's milk are close to those of breast milk, which is easier for infants to absorb and reduces allergic symptoms [2,8,14] , and mare's milk is rich in vitamins and minerals, which has a good effect on regulating human physiological functions, improving human immunity and preventing and curing diseases. Camel ...

Claims

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Application Information

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IPC IPC(8): G01N21/3577G01N1/38G01N1/44
CPCG01N1/38G01N1/44G01N21/3577
Inventor 张淑君王海童南良康罗雪路杜超江汉刘锐阮健苏俊东
Owner HUAZHONG AGRI UNIV
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