Czech J. Food Sci., 2006, 24(6):255-260 | DOI: 10.17221/3322-CJFS

Determination of selected parameters of quality of the dairy products by NIR spectroscopy

Jana Růžičková, Květoslava Šustová
Department of Food Technology, Mendel University of Agriculture and Forestry Brno, Brno, Czech Republic

The possibility of the application of near-infrared spectroscopy to the analysis of the selected parameters of quality of the dairy products was followed. The contents of solids and fat, as well as pH in yoghurts (also the titrable acidity), milk semolina, and milk rice were determined. The samples were analysed by reference methods and by FT NIR spectroscope at integrating sphere within reflectance mode in the wavelength range of 10 000-4 000 cm-1 with 100 scans. To develop the calibration model for the components examined, the partial least squares (PLS) was used and this model was validated by full cross validation. The highest correlation coefficients were found with yoghurt: 0.998 (solids), 0.989 (fat), 0.875 (pH) and 0.989 (titrable acidity), with milk semolina: 0.967 (solids), 0.983 (fat) and 0.992 (pH), and with milk rice: 0.987 (solids), 0.990 (fat) and 0.852 (pH). The results of this study showed the availability of NIR spectroscopy for a quick and non-destructive analysis of the dairy products.

Keywords: NIR spectroscopy; dairy products; dry matter; fat; pH; titrable acidity of yoghurt

Published: December 31, 2006  Show citation

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Růžičková J, Šustová K. Determination of selected parameters of quality of the dairy products by NIR spectroscopy. Czech J. Food Sci. 2006;24(6):255-260. doi: 10.17221/3322-CJFS.
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    References

    1. BLAZQUEZ C., DOWNEY G., O'DONNELL C., O'CALLAGHAN D., HOWARD V. (2004): Prediction of moisture, fat and inorganic salts in processed cheese by near infrared reflectance spectroscopy and multivariate data analysis. Journal of Near Infrared Spectroscopy, 12: 149-157. Go to original source...
    2. ČURDA L., KUKAČKOVÁ O., NOVOTNÁ M. (2002): Near-infrared spectroscopy and its application to milk and dairy products analysis. Chemické Listy, 96: 305-310.
    3. GARCIA-ALVAREZ M., HUIDOBRO J.F., HERMIDA M., RODRIGUEZ-OTERO J.L. (2000): Major components of honey analysis by near-infrared transflectance spectroscopy. Journal of Agricultural and Food Chemistry, 48: 5154-5158. Go to original source... Go to PubMed...
    4. HAALAND D.M., THOMAS E.V. (1988a): Partial least-squares methods for spectral analyses. 1. Relation to other quantitative calibration methods and the extraction of qualitative information. Analytical Chemistry, 60: 1193-1202. Go to original source...
    5. HAALAND D.M., THOMAS E.V. (1988b): Partial leastsquares methods for spectral analyses. 2. Application to simulated and glass spectral data. Analytical Chemistry, 60: 1202-1208. Go to original source...
    6. HERMIDA M., GONZALEZ J.M., SANCHEZ M., RODRIGUEZ-OTERO J.L. (2001): Moisture, solids-non-fat and fat analysis in butter by near infrared spectroscopy. International Dairy Journal, 11: 93-98. Go to original source...
    7. PARADKAR M.M., IRUDAYARAJ J. (2002): Determination of cholesterol in dairy products by infrared techniques: 2. FT-NIR method. International Journal of Dairy Technology, 55: 133-138. Go to original source...
    8. PREVOLNIK M., CANDEK-POTORKAR M., SKORJANC D., VELIKONJA-BOLTA S., SKRLEP M., ZNIDARSIC T., BABNIK D. (2005): Predicting intramuscular fat content in pork and beef by near infrared spectroscopy. Journal of Near Infrared Spectroscopy, 13: 77-85. Go to original source...
    9. RODRÍGUEZ-OTERO J.L., HERMIDA M., CENTERO J. (1997): Analysis of dairy products by near-infrared spectroscopy. Journal of Agricultural and Food Chemistry, 45: 2815-2819. Go to original source...
    10. RU Y.J., GLATZ P.C. (2000): Application of near infrared spectroscopy (NIR) for monitoring the quality of milk, cheese, meat and fish. Asian-Australian Journal of Animal Science, 13: 1017-1025. Go to original source...
    11. SASIC S., OZAKI Y. (2001): Short-wave near-infrared spectroscopy of biological fluids. 1. Quantitative analysis of fat, protein, and lactose in raw milk by partial least squares regression and band assignment. Analytical Chemistry, 73: 64-71. Go to original source... Go to PubMed...

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