Identification of the Content of Ganoderma Lucidum Powder in Ganoderma Lucidum Spore Powder Based on Near-Infrared Spectroscopy and Partial Least Squares

Abstract

In order to identify the content of Ganoderma lucidum powder in Ganoderma lucidum spore powder, diffuse reflectance spectroscopy of samples were collected by the Fourier near-infrared spectrometer. The spectroscopy was pretreated by minimum and maximum normalization and then analyzed with partial least squares (PLS) method. The spectral at 6110 cm-1 to 4598 cm-1 was establish PLS model with factors number 10. The result show that the squared correlation coefficient R2 between predicted value and true value is 99.99%, and RMSECV is 0.382. In conclusion, Ganoderma lucidum spore powder and Ganoderma lucidum powder can be identified accurately and quickly based on near-infrared spectroscopy and PLS.