Spectroscopy and Spectral Analysis, Volume. 31, Issue 4, 937(2011)

Application of Near Infrared Spectral Fingerprint Technique in Lamb Meat Origin Traceability

SUN Shu-min1,2、*, GUO Bo-li2, WEI Yi-min2, and FAN Ming-tao1
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  • 1[in Chinese]
  • 2[in Chinese]
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    Near infrared spectra of 99 lamb meat samples from three pasturing areas and two farming areas of China were scanned and analyzed to seek a cheap, rapid and effective method for lamb meat origin traceability.Two chemometric methods including linear discriminant analysis based on principal component analysis (PCA+LDA) and partial least squares discriminant analysis (PLS-DA) were used to develop the discriminate models.It was showed that there were significantly differences among the lamb meat samples from five regions based on NIR spectra after second derivative (Savitzky-Golay, 9 point) and multiplicative scattering correction(MSC)transformation in the whole wavelength.The discrimination of two models was best for classification of pasturing area and farming area, with both correctly classified by 100%.The correct classification rate of samples from five different regions using PCA+LDA model was 91.2%, higher than using PLS-DA model (76.7%).These results demonstrate that near infrared reflectance spectroscopy (NIRS) combined with chemometric analysis can be used as an effective method to classify lamb meat according to its geographical origin.

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    SUN Shu-min, GUO Bo-li, WEI Yi-min, FAN Ming-tao. Application of Near Infrared Spectral Fingerprint Technique in Lamb Meat Origin Traceability[J]. Spectroscopy and Spectral Analysis, 2011, 31(4): 937

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    Paper Information

    Received: Jul. 8, 2010

    Accepted: --

    Published Online: May. 30, 2011

    The Author Email: Shu-min SUN (xianyun730@163.com)

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