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雙孢蘑菇硬度的近紅外漫反射光譜無損檢測
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國家自然科學基金資助項目（30871757）;國家農(nóng)業(yè)科技成果轉化資金資助項目（2010GB2C600253）


Non-destructive Detection of Agaricus bisporus Firmness Based on Near-infrared Diffused Spectroscopy
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    摘要:

    以雙孢蘑菇為試驗材料,，基于近紅外漫反射光譜定量分析技術，研究其貯藏期間硬度無損檢測模型的建立方法。采用偏最小二乘法對雙孢蘑菇的近紅外光譜進行分析,，并且比較了4種（一階導數(shù)、二階導數(shù),、標準正交變量變換,、多元散射校正）光譜預處理方法的建模結果。試驗結果表明,，在選定的光譜（5000~10000cm-1）范圍內,，二階導數(shù)光譜預處理方法所建模型效果最佳，其校正決定系數(shù)為0.9471,，驗證決定系數(shù)為0.8261,，說明基于近紅外漫反射光譜的檢測方法簡便易行，可用于無損評價雙孢蘑菇貯藏期間硬度的變化,。

    Abstract:

    Calibration model for firmness of Agaricus bisporus during storage was developed based on near-infrared (NIR) diffuse reflectance spectroscopy quantitative analysis techniques. Partial least squares (PLS) regression was carried out to analyze the spectroscopy. Four different spectral pretreatment methods (first derivative, second derivative, SNV, SMC) were used to compare calibration results for firmness. The result showed that the best calibration models,，in the selected wavelength range of 5000~10000cm-1，could be obtained by the second derivative spectrum with the determination coefficient of calibration of 0.9471, and the determination coefficient of prediction of 0.8261. The results indicated that the detection method based on near-infrared diffuse reflectance spectroscopy was simple, and could be used for non-destructively evaluating the changes of firmness in Agaricus bisporus during storage in time.

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王娟,張榮芳,王相友.雙孢蘑菇硬度的近紅外漫反射光譜無損檢測[J].農(nóng)業(yè)機械學報,2012,43(11):163-168. Wang Juan, Zhang Rongfang, Wang Xiangyou. Non-destructive Detection of Agaricus bisporus Firmness Based on Near-infrared Diffused Spectroscopy[J]. Transactions of the Chinese Society for Agricultural Machinery,2012,43(11):163-168.

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  • 在線發(fā)布日期: 2012-11-16
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