Determination of soluble solid content in apples using near infrared spectroscopy
Near infrared (NIR) spectroscopy using both a laboratory spectrometer Antaris II and a hand-held MicroPhazir spectrometers was applied to predict the soluble solids content in two apple varieties, 'Gala' and 'Red Jonaprince'. A calibration model was designed from the NIR measurements that associated the results to the invasive analysis. A better coefficient of determination for calibration was observed for results obtained with the Antaris II instrument compared with the MicroPhazir. The highest coefficient of determination R2=0.9659 (RMSECV=0.432) for calibration was found for variety 'Gala' using Antaris II. It contrasted with the worst value of the coefficient R2=0.4760 (RMSECV=0.677) for calibration calculated for variety 'Red Jonaprince' using the MicroPhazir instrument.
Šubrtová, M., Danková, V., Suran, P. and Zelený, L. (2021). Determination of soluble solid content in apples using near infrared spectroscopy. Acta Hortic. 1311, 169-178
apple, near infrared spectroscopy, non-destructive, SSC