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A rapid method to evaluate the amount of Lycium barbarum polysaccharides (LBPs) based on near-infrared diffuse reflectance spectroscopy (NIDRS) is proposed. A total of 114 dried L. barbarum samples from different regions of China were used for modeling by partial least squares (PLS) regression with the effective wavelengths (EWs) selected by correlation coefficients and X-loading weights. The PLS...
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