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Rapid and Non-Destructive Geographical Origin Identification of Chuanxiong Slices Using Near-Infrared Spectroscopy and Convolutional Neural Networks

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  • Yuxing Huang

    (School of Food and Bioengineering, Xihua University, Red-Light Avenue, Chengdu 610039, China
    School of Future Food Modern Industry, Xihua University, Red-Light Avenue, Chengdu 610039, China)

  • Yang Pan

    (School of Food and Bioengineering, Xihua University, Red-Light Avenue, Chengdu 610039, China
    School of Future Food Modern Industry, Xihua University, Red-Light Avenue, Chengdu 610039, China)

  • Chong Liu

    (School of Food and Bioengineering, Xihua University, Red-Light Avenue, Chengdu 610039, China
    School of Future Food Modern Industry, Xihua University, Red-Light Avenue, Chengdu 610039, China)

  • Lan Zhou

    (School of Food and Bioengineering, Xihua University, Red-Light Avenue, Chengdu 610039, China
    School of Future Food Modern Industry, Xihua University, Red-Light Avenue, Chengdu 610039, China)

  • Lijuan Tang

    (School of Food and Bioengineering, Xihua University, Red-Light Avenue, Chengdu 610039, China)

  • Huayi Wei

    (School of Food and Bioengineering, Xihua University, Red-Light Avenue, Chengdu 610039, China)

  • Ke Fan

    (School of Food and Bioengineering, Xihua University, Red-Light Avenue, Chengdu 610039, China)

  • Aichen Wang

    (School of Agricultural Engineering, JiangSu University, Xuefu Road, Zhenjiang 212013, China)

  • Yong Tang

    (School of Food and Bioengineering, Xihua University, Red-Light Avenue, Chengdu 610039, China
    School of Future Food Modern Industry, Xihua University, Red-Light Avenue, Chengdu 610039, China)

Abstract

Ligusticum Chuanxiong, a perennial herb of considerable medicinal value commonly known as Chuanxiong, holds pivotal importance in sliced form for ensuring quality and regulating markets through geographical origin identification. This study introduces an integrated approach utilizing Near-Infrared Spectroscopy (NIRS) and Convolutional Neural Networks (CNNs) to establish an efficient method for rapidly determining the geographical origin of Chuanxiong slices. A dataset comprising 300 samples from 6 distinct origins was analyzed using a 1D-CNN model. In this study, we initially established a traditional classification model. By utilizing the Spectrum Outlier feature in TQ-Analyst 9 software to exclude outliers, we have enhanced the performance of the model. After evaluating various spectral preprocessing techniques, we selected Savitzky–Golay filtering combined with Multiplicative Scatter Correction (S-G + MSC) to process the raw spectral data. This approach significantly improved the predictive accuracy of the model. After 2000 iterations of training, the CNN model achieved a prediction accuracy of 92.22%, marking a 12.09% improvement over traditional methods. The application of the Class Activation Mapping algorithm not only visualized the feature extraction process but also enhanced the traditional model’s classification accuracy by an additional 7.41% when integrated with features extracted from the CNN model. This research provides a powerful tool for the quality control of Chuanxiong slices and presents a novel perspective on the quality inspection of other agricultural products.

Suggested Citation

  • Yuxing Huang & Yang Pan & Chong Liu & Lan Zhou & Lijuan Tang & Huayi Wei & Ke Fan & Aichen Wang & Yong Tang, 2024. "Rapid and Non-Destructive Geographical Origin Identification of Chuanxiong Slices Using Near-Infrared Spectroscopy and Convolutional Neural Networks," Agriculture, MDPI, vol. 14(8), pages 1-15, August.
  • Handle: RePEc:gam:jagris:v:14:y:2024:i:8:p:1281-:d:1449335
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