Determination of Seed Lipid and Protein Contents in Perilla and Peanut by Near-Infrared Reflectance Spectroscopy

Near-infrared reflectance spectroscopy (NIBS) was used to estimate the lipid and protein contents in ground seed samples of perilla (Perilla frutescens Brit.) and peanut (Arachis hypogaea L.). A total of 46 perilla and 80 peanut calibration samples and 23 perilla and 46 peanut NIRS validation samples were used for NIRS equation development and validation, respectively. Validation of these NIRS equations showed a range of very low bias (-0.05 to 0.13%) and standard error of prediction corrected for bias (0.224 to 0.803 %) and very high coefficient of determination (R²) (0.962 to 0.985). It was concluded that NIRS could be adapted as a mass screening method for lipid and protein contents in perilla and peanut seed.