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Proceedings Paper

NIRS and MIRS technique for the determination of protein and fat content in milk powder
Author(s): Di Wu; Shuijuan Feng; Chao He; Yong He
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Paper Abstract

It is very important to detect the protein and fat content in milk powder fast and non-destructively. Near-infrared (NIR) and mid-infrared(MIR) spectroscopy techniques have been compared and evaluated for the determination of the protein and fat content in milk powder with the use of Least-squares support vector machines (LS-SVM). LS-SVM models have been developed by using both NIR and MIR spectra. Both methods have shown good correlations between infrared transmission values and two nutrition contents. MIRS provided better prediction performance over NIRS. It is concluded that infrared spectroscopy technique can quantify of the protein and fat content in milk powder fast and nondestructively. The process is simple and easy to operate than chemistry methods. The results can be beneficial for designing a simple and non-destructive instrument with MIRS or NIRS spectral sensor for the determination of the protein fat content in milk powder.

Paper Details

Date Published: 19 February 2008
PDF: 8 pages
Proc. SPIE 6625, International Symposium on Photoelectronic Detection and Imaging 2007: Related Technologies and Applications, 66251S (19 February 2008); doi: 10.1117/12.791230
Show Author Affiliations
Di Wu, Zhejiang Univ. (China)
Shuijuan Feng, Zhejiang Univ. (China)
Chao He, Zhejiang Univ. (China)
Yong He, Zhejiang Univ. (China)


Published in SPIE Proceedings Vol. 6625:
International Symposium on Photoelectronic Detection and Imaging 2007: Related Technologies and Applications

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