02248naa a2200373 a 450000100080000000500110000800800410001902400530006010000190011324501430013226000090027552010980028465000110138265000220139365000180141565000100143365000250144365000110146865000180147965000100149765000180150765300330152565300230155865300170158165300460159865300280164465300230167270000220169570000190171770000200173670000260175670000220178277300700180421544432023-06-15       2023    bl uuuu     u00u1 u    #d7 ahttps://dx.doi.org/10.1590/0100-294520239692DOI1 aVILVERT, J. C.  aNon-destructive assessment of quality traits in apples and pears using near infrared spectroscopy and chemometrics.h[electronic resource]  c2023  aThe objective of this study was to evaluate the performance of a hand-held NIR spectrometer for non-destructive quality analysis of apples and pears produced in the Brazilian Semi-arid region. NIR spectra were acquired with a portable spectrometer in the wavelength range of 750–1065 nm and reference analyses of dry matter content (DMC) and soluble solids content (SSC) were measured weekly during 10 weeks of storage at 0.5 °C. Spectra were pre-processed with standard normal variate and used to develop DMC and SSC models using partial least squares re- gression with full cross-validation. The models were validated using data not included in the calibration. Satisfactory prediction results were obtained for SSC in apples (R² = 0.58) and pears (R² = 0.55), and for DMC in apples (R² = 0.55) and pears (R² = 0.65). All prediction models showed a relative root mean square error of prediction lower than 8%. These findings indicate that the NIR spectrometer is a promising tool to be used for a rapid and non-destructive determination of internal quality traits in apples and pears.  aApples  aDry matter intake  aFruit quality  aPears  aTotal soluble solids  aMaçã  aMatéria Seca  aPêra  aPós-Colheita  aEspectrômetro portátil NIR  aQualidade do fruto  aQuimiometria  aRegressão de mínimos quadrados parciais  aRegressão multivariada  aSólidos solúveis1 aSANTOS, L. F. dos1 aCARDOSO, A. D.1 aLOPES, P. R. C.1 aAMARANTE, C. V. T. do1 aFREITAS, S. T. de  tRevista Brasileira de Fruticulturagv. 45, e-969, Mar./Apr. 2023.