title: [Determination of fat, protein and DM in raw milk by portable short-wave near infrared spectrometer].
abstract: Near infrared diffuse reflectance spectroscopy calibrations of fat, protein and DM in raw milk were studied with partial least-squares (PLS) regression using portable short-wave near infrared spectrometer. The results indicated that good calibrations of fat and DM were found, the correlation coefficients were all 0.98, the RMSEC were 0.187 and 0.217, RMSEP were 0.187 and 0.296, the RPDs were 5.02 and 3.20 respectively; the calibration of protein needed to be improved but can be used for practice, the correlation coefficient was 0.95, RMSEC was 0.105, RMSEP was 0.120, and RPD was 2.60. Furthermore, the measuring accuracy was improved by analyzing the correction relation of fat and DM in raw milk This study will probably provide a new on-site method for nondestructive and rapid measurement of milk.
authors: College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China. xiaoyunli_2006@163.com
authors: Xiao-yun
authors: XY
authors: Li
authors: Jia-hua
authors: JH
authors: Wang
authors: Ya-wei
authors: YW
authors: Huang
authors: Dong-hai
authors: DH
authors: Han