[Rapid Identification of Fresh-cut and Sulphur Fumigation Processed Fritillaria thunbergii Bulb Slices Based on Near-infrared Spectroscopy].

A rapid identification model of the fresh-cut and sulphur fumigation processed Fritillaria thunbergii bulb slices was developed by near-infrared spectroscopy (NIR) with chemometrics method.186 batches of Fritillaria thunbergii bulb slices were collected from the two main producing areas Ningbo and Pan'an in Zhejiang Province, and the near-infrared spectrums were gathered to establish the qualitative identification model by discriminant analysis.The identification model was developed by choosing the spectrum of 9,881.46-4,119.20 cm(-1) and "MSC + spectrum + Ns" to the original spectral preprocessing, and then was verified by prediction set, with 100% identify accuracy.The rapid identification model of the fresh-cut and sulphur fumigation processed Fritillaria thunbergii bulb slices by NIR is feasible and efficient.