HUBEI AGRICULTURAL SCIENCES ›› 2024, Vol. 63 ›› Issue (7): 120-128.doi: 10.14088/j.cnki.issn0439-8114.2024.07.020

• Animal Husbandry & Veterinary Medicine • Previous Articles     Next Articles

Hyperspectral prediction of amino acid content in Yunling marbled beef

LUO Shuang2,3, YANG Lin-nan2,3, ZHANG Li-lian2,3, PENG Lin2,3, LI Pei-shan2,3, GAO Lu-tao2,3   

  1. 1a. College of Big Data; 1b. College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, China;
    2. Yunnan Engineering Technology Research Center of Agricultural Big Data, Kunming 650201, China;
    3. Yunnan Engineering Research Center for Big Data Intelligent Information Processing of Green Agricultural Products, Kunming 650201, China
  • Received:2023-04-25 Online:2024-07-25 Published:2024-07-24

Abstract: A method for non-destructive and rapid determination of the amino acid content of Yunling marbled beef based on hyperspectral imaging technology combined with machine learning was introduced. Hyperspectral data were collected in the 400~1 000 nm and 900~2 500 nm bands for 100 groups of marbled beef from five grades of Yunling cattle. The JJG1064-2011 standard amino acid analyzer was used to measure the content of 17 amino acids in the sample. The first-order difference (1st Derivative, D1) was used for hyperspectral data preprocessing, and the Successive projection algorithm (SPA) was used for feature band extraction. Five methods including Decision trees (Decision trees), Support vector machine (SVM), Ridge regression (Ridge regression), Partial least squares regression (PLSR) and Convolutional neural network (CNN) were used for predicting amino acid content. Experimental results showed that the CNN model combined with D1 preprocessing and SPA feature extraction performed best in predicting amino acid content, with mean squared error (MSE) of 0.010 3, mean absolute error (MAE) of 0.082 2, and the coefficient of determination (R2) of 0.898 5.

Key words: hyperspectral imaging technology, Yunling marbled beef, amino acid, predictive model

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