PT  - JOURNAL ARTICLE
AU  - Šustová, Květoslava
AU  - Kuchtík, Jan
TI  - Analysis of goat's milk by FT Near Infrared spectroscopy
DP  - 2014 Nov 26
TA  - Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis
PG  - 103--110
VI  - 55
IP  - 4
AID - 10.11118/actaun200755040103
IS  - 12118516
AB  - Our work deals with a possibility of determining basic composition (fat, true protein, casein, lactose and somatic cells) of goat's milk Fourier transform near-infrared spectroscopy (FT NIR). Samples of milk were warmed to 40 °C, agitated, cooled to 20 °C, transferred to Petri dishes and analysed by reference methods and by FT NIR in reflectance mode. The measured area was spaced by a metallic mirror. Statistically significant differences between the reference values and the calculated values of NIR were not found (p = 0.05). Very high correlation coefficients were determined for goat's milk: fat 0.907, protein 0.989, casein 0.890 and lactose 0.981. The study showed that NIRS method, when samples of milk are measured on Petri dishes, is a useful technique for the prediction of fat, true protein, casein and lactose in goat's milk. Results of calibration for somatic cells are not accurate (correlation coefficients of calibration 0,885 and correlation coefficients of validation 0.566).