CHINESE JOURNAL OF OIL CROP SCIENCES ›› 2022, Vol. 44 ›› Issue (3): 532-538.doi: 10.19802/j.issn.1007-9084.2021111

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Identification of soybean producing area in North China based on multi-element and fatty acid fingerprint characteristics

Jing-hui WANG1(), Yang LIU1, Qi-you ZHENG1, Xiao-tang CHENG1, Chao-hui WANG2()   

  1. 1.College of Information Technology,Jilin Agricultural University,Changchun 130118,China
    2.College of Food Science and Engineering,Jilin Agricultural University,Changchun 130118,China
  • Received:2021-04-06 Online:2022-06-25 Published:2022-07-04
  • Contact: Chao-hui WANG E-mail:wjh3205@jlau.edu.cn;wzhjlndsp@aliyun.com


In order to explore the feasibility of data fusion technology in the origin identification of neighboring soybean producing area, 216 soybean samples were collected from Heilongjiang Agricultural Reclamation Jiusan Administration and Suihua area, and the contents of 13 mineral elements such as magnesium (Mg), aluminum (Al) and phosphorus (P) and 5 fatty acids such as palmitic acid, stearic acid and oleic acid were determined. Support vector machine (SVM) with 4 kernel functions were established by mineral elements, fatty acids, data-level fusion and feature-level fusion data. After parameter optimization by grid search algorithm combined with 50% cross-validation, the recognition accuracy of the model increased to 90.77%, 92.31%, 89.23% and 95.38% respectively. The results showed that the feature-level data fusion technology had a significant effect on the origin identification of neighboring soybean producing area, which was superior to the other three data identification technologies. It could accurately and effectively distinguish soybean origin in neighboring areas by feature-level data fusion technology to establish support vector machine origin identification model, which provided a new research direction for geographical indication product protection technology.

Key words: multi-element analysis, fatty acid analysis, data fusion, origin identification, northern soybean

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