Nondestructive prediction of maturity of mango using near infrared spectroscopy.
Jha S. N., Narsaiah K., Jaiswal P., Bhardwaj R., Gupta M., Kumar R., Sharma R.
Author Affiliation: Agricultural Structures and Environmental Control Division, Central Institute of Post-harvest Engineering & Technology (CIPHET), Ludhiana 141 004, India.
Journal of Food Engineering 124 : 152-157
Abstract : This study proposes a formula for prediction of maturity index (Im) using physico-chemical characteristics and overall acceptability (OA) of a sensory panel for mangoes from orchards of nine Indian states. Computed Im values were found to be in agreement with both OA scores and the perceptions of experienced farmers. NIR spectra of 1180 mangoes were acquired. Multiple-linear regression (MLR) and partial least square (PLS) models were developed in the wavelength range of 1200-2200 nm to predict Im. The best prediction was achieved using PLS model after MSC data treatment in the wavelength range of 1600-1800 nm. Multiple correlation coefficients (R) for calibration and validation of PLS model were 0.74 and 0.68, respectively. Lower difference in standard errors of calibration (0.305) and prediction (0.335), indicated the potential of NIRS in prediction of the maturity non-destructive.