Spectral identification model and method for milk and goat milk

A technology for identifying models, goat milk, applied in neural learning methods, character and pattern recognition, biological neural network models, etc.

Inactive Publication Date: 2021-04-16
HUAZHONG AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Mid-infrared spectroscopic analysis is a fast, non-destructive, non-pollution-free, modern technology that can analyze multiple components at the same time that has been developed rapidly in recent years. It is widely used in the quality inspection of agricultural products and food. Relevant research and literature reports on infrared spectrum identification

Method used

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  • Spectral identification model and method for milk and goat milk
  • Spectral identification model and method for milk and goat milk
  • Spectral identification model and method for milk and goat milk

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Embodiment 1

[0029] Instruments and equipment:

[0030] MilkoScan produced by FOSS company TM 7RM milk composition detector (according to the product instruction manual).

[0031] The operation steps are as follows:

[0032] 1) Select a milk sample:

[0033] 73 samples of fresh goat's milk and 80 samples of fresh cow's milk were collected respectively.

[0034] 2) Mid-infrared spectrum collection:

[0035] Pour goat milk and cow milk samples into cylindrical sampling tubes with a diameter of 3.5cm and a height of 9cm to ensure that the liquid level is greater than 6cm, then bathe them in a water bath at 42°C for 15-20min, and then extend the solid optical fiber probe Aspirate a sample into the liquid for detection, using MilkoScan from FOSS TM 7RM milk composition detector at 4000-400cm -1 The goat milk and cow milk samples are scanned within the wavenumber range, and the light transmittance corresponding to the sample is output by the computer connected to it to obtain the sample sp...

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Abstract

The invention belongs to the field of milk product analysis, and particularly relates to a spectral identification model and method for milk and goat milk, which are related to intermediate infrared spectroscopy. The method comprises the following steps: 1) taking a fresh goat milk sample and a fresh milk sample; 2) scanning the samples in a intermediate infrared spectral range to obtain mid-infrared spectral data; 3) preprocessing the original mid-infrared spectrum to remove abnormal values; 4) dividing the preprocessed data set into a training set 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) on the training set, establishing a model for distinguishing mare's milk from milk through 10-fold cross validation by using algorithms such as nearest neighbors, and evaluating and screening the model by using accuracy, specificity, sensitivity and AUC; 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 identification model and method for identifying cow's milk and goat's milk. The present invention is related to the field of analysis using infrared spectroscopy to identify ingredients in dairy products. Background technique [0002] The content of milk fat and milk protein in goat milk is higher than that of cow milk, and it contains a variety of essential amino acids; the content of medium-chain fatty acids is twice that of milk, and it is easier to be digested and absorbed by the attack of human lipase, and its fat globules It is only one-third the volume of cow's milk, so goat's milk is digested faster than cow's milk [2] ; Its epithelial growth factor (EGF) content is the highest in breast milk and a small number of milks, which is 8 times that of milk, and has an auxiliary therapeutic effect on allergic skin. The protein in goat's mil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/3577G01N1/44G06K9/62G06N3/08
CPCG01N33/04G01N21/3577G01N2201/1293
Inventor 张淑君刘实南良康王海童杜雯娟胡修忠万平民程蕾刘晓华易建明苏俊东艾哈迈德.萨贝克张依
Owner HUAZHONG AGRI UNIV
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