Time-resolved and continuous wave NIR reflectance spectroscopy to predict soluble solids content and firmness of pear (Articolo in rivista)

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Label
  • Time-resolved and continuous wave NIR reflectance spectroscopy to predict soluble solids content and firmness of pear (Articolo in rivista) (literal)
Anno
  • 2008-01-01T00:00:00+01:00 (literal)
Alternative label
  • Nicolai, BM; Verlinden, BE; Desmet, M; Saevels, S; Saeys, W; Theron, K; Cubeddu, R; Pifferi, A; Torricelli, A (2008)
    Time-resolved and continuous wave NIR reflectance spectroscopy to predict soluble solids content and firmness of pear
    in Postharvest biology and technology (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Nicolai, BM; Verlinden, BE; Desmet, M; Saevels, S; Saeys, W; Theron, K; Cubeddu, R; Pifferi, A; Torricelli, A (literal)
Pagina inizio
  • 68 (literal)
Pagina fine
  • 74 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 47 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • \"[Nicolai, Bart M.; Verlinden, Bert E.; Desmet, Michele; Saevels, Stijn; Saeys, Wouter] Catholic Univ Louvain, Flanders Ctr Postharvest Technol, BIOSYST MeBioS, B-3001 Heverlee, Belgium; [Cubeddu, Rinaldo; Pifferi, Antonio; Torricelli, Alessandro] Politecn Milan, Dipartimento Fis, CNR IFN, CNR INFM, I-20133 Milan, Italy; [Theron, Karen] Univ Stellenbosch, Dept Hort Sci, ZA-7602 Matieland, South Africa (literal)
Titolo
  • Time-resolved and continuous wave NIR reflectance spectroscopy to predict soluble solids content and firmness of pear (literal)
Abstract
  • Continuous wave (CW) and time-resolved (TRS) near infrared (NIR) reflectance measurements were carried out on 'Conference' pear fruit. While the absorption coefficient spectra obtained from the TRS measurements were dominated by the overtone of the hydroxyl moiety at 975 nm, the scattering coefficient spectra were almost flat. The spectral data were used to construct calibration models for the soluble solids content (SSC) and Magness Taylor firmness of 'Conference' pear fruit. Reasonable models for SSC (RMSEP = 0.44 degrees Brix) were obtained when the CW spectra in the range 780-1700 nm were used, but not when the range was limited to that of the TRS equipment (875-1030 rim). No satisfactory calibration model could be established between the TRS absorption coefficient spectrum and SSC. With none of the spectroscopic techniques could significant calibration models for firmness be constructed, although a highly nonlinear relationship between scattering coefficients at 900 nm and firmness was observed. (c) 2007 Elsevier B.V. All rights reserved. (literal)
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