A feasibility study on quantitative analysis of glucose and fructose in lotus root powder by FT-NIR spectroscopy and chemometrics

► Glucose and fructose in lotus root powder were quantified by FT-NIR. ► Models were established by PLSR, FiPLS, BiPLS, BP-ANN and LS-SVM. ► BP-ANN and LS-SVM models with LVs as input were far better than else models. ► Optimal models were obtained by LS-SVM with the first 10 LVs as input for two sugars. ► NIRs technique offers effective quantitative capability for sugars in starch powder.