• Spectroscopy and Spectral Analysis
  • Vol. 41, Issue 8, 2543 (2021)
Bing-yu MU1、*, Shu-juan ZHANG1、1;, Ze-zhen LI2、2;, Kai WANG1、1;, Zi-hui LI1、1;, and Jian-xin XUE1、1; *;
Author Affiliations
  • 11. College of Agricultural Engineering, Shanxi Agricultural University, Jinzhong 030801, China
  • 22. College of Food Science and Engineering, Shanxi Agricultural University, Jinzhong 030801, China
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    DOI: 10.3964/j.issn.1000-0593(2021)08-2543-06 Cite this Article
    Bing-yu MU, Shu-juan ZHANG, Ze-zhen LI, Kai WANG, Zi-hui LI, Jian-xin XUE. Early Detection of Cauliflower Gray Mold Based on Near-Infrared Spectrum Feature Extraction[J]. Spectroscopy and Spectral Analysis, 2021, 41(8): 2543 Copy Citation Text show less
    Average reflection spectrum of cauliflower sample
    Fig. 1. Average reflection spectrum of cauliflower sample
    Table 1. Sample of cauliflower during storage
    指标处理方式贮藏时间/d
    0.5123
    POD/(U·g-1)对照组124.33±8.00a140.0±10.75a100.38±1.63b81.33±0.38a
    接菌组126.63±3.12a151.25±2.00a109.75±1.00a78.75±0.50b
    PPO/(U·g-1)对照组14.44±0.06a17.00±0.50a20.25±0.13b17.79±0.76b
    接菌组14.50±0.38a18.38±1.12a24.86±0.32a21.50±0.75a
    MDA/(nmol·g-1)对照组2.22±0.04a3.29±0.02b4.55±0.19b6.66±0.07b
    接菌组2.62±0.20a4.00±0.08a6.60±0.23a8.51±0.17a
    Table 2. Changes of cauliflower quality indexes during storage
    批次时间
    /d
    特征波
    长个数
    所提取的特征波长(λ/nm)
    10.511748, 980, 992, 1 236, 1 343, 1 874,
    2 109, 2 119, 2 354, 2 372, 2 383
    2110845, 865, 913, 932, 1 048, 1 074,
    1 363, 1 448, 1 685, 1 850
    3210500, 517, 649, 686, 755, 975, 998,
    1 716, 1 874, 2 169
    439552, 837, 903, 1 609, 1 665, 1 720,
    1 973, 2 354, 2 383
    Table 3. Characteristic wavelength table extracted by CARS algorithm
    批次时间
    /d
    预测集建模结果预测集判别结果
    Rp2RMSEP总数误判个数判别准确率/%
    10.50.8350.20638294.74
    210.8920.155380100
    320.9440.118380100
    430.9770.057380100
    Table 4. CARS characteristic wavelength PLSR single batch modeling
    批次时间
    /d
    预测集建模结果预测集判别结果
    Rp2RMSEP总数误判个数判别准确率/%
    10.50.8170.24238392.11
    210.8750.18538197.37
    320.9120.149380100
    430.9590.098380100
    Table 5. CARS characteristic wavelength PLSR combined batch modeling
    Bing-yu MU, Shu-juan ZHANG, Ze-zhen LI, Kai WANG, Zi-hui LI, Jian-xin XUE. Early Detection of Cauliflower Gray Mold Based on Near-Infrared Spectrum Feature Extraction[J]. Spectroscopy and Spectral Analysis, 2021, 41(8): 2543
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