Application of On-Line FT-NIR Spectrometer in Primary Processing Line

The prediction models of moisture content, total alkaloid, total sugar and total nitrogen in cut tobacco during primary processing were established with its spectra acquired by on-line FT-NIR spectrometer. The mean relative errors between predictive values and determined values of moisture content, total alkaloid, total sugar and total nitrogen were 1.1%, 1.9%, 2.1%, and 1.7%, respectively. It indicated that on-line monitoring of the chemical components in cut tobacco during primary processing with on-line FT-NIR spectrometer was feasible.