Non-Destructive Measurement of Quality Parameters of Apple Fruit by Using Visible/Near-Infrared Spectroscopy and Multivariate Regression Analysis

The quality assessment and grading of agricultural products is one the post-harvest activities that has received considerable attention due to growing demand for healthy better-quality products. Recently, various non-destructive methods have been used evaluate products, which are very desirable faster more economical than destructive methods. Optical most important use high speed light detection computer data processing able classification with accuracy. Among optical methods, visible–near-infrared (Vis/NIR) spectroscopy considered accurate In this research, Vis/NIR technology was in spectral range 350–1150 nm some parameters including pH, TA, SSC, TP two varieties Red Delicious Golden apples. Various pre-processing models were developed predict parameters, brought desired results accuracy so pH prediction yellow apples (RMSEC = 0.009, rc 0.991, SDR 2.51) red 0.005, 0.998, 2.56). TA also 0.003, 0.996, 0.001, 2.81) regarding SSC 0.209, 0.990 2.82) 0.054, 2.67 0.999). addition, TP, 0.2, 0.989, 2.05) 1.457, 1.61). obtained indicate mentioned by visible/infrared spectroscopic technology.