Time-resolved reflectance spectroscopy applied to the non-destructive monitoring of the internal optical properties in apples.

Cubeddu, Rinaldo and D'Andrea, Cosimo and Pifferi, Antonio and Taroni, Paola and Torricelli, Alessandro and Valentini, Gianluca and Ruiz-Altisent, Margarita and Valero Ubierna, Constantino and Ortiz Sánchez, Mª Coral and Dover, Colin and Johnson, David (2001). Time-resolved reflectance spectroscopy applied to the non-destructive monitoring of the internal optical properties in apples.. "Applied Spectroscopy", v. 55 (n. 10); pp. 1368-1374. ISSN 0003-7028. https://doi.org/10.1366/0003702011953496.

Description

Title: Time-resolved reflectance spectroscopy applied to the non-destructive monitoring of the internal optical properties in apples.
Author/s:
  • Cubeddu, Rinaldo
  • D'Andrea, Cosimo
  • Pifferi, Antonio
  • Taroni, Paola
  • Torricelli, Alessandro
  • Valentini, Gianluca
  • Ruiz-Altisent, Margarita
  • Valero Ubierna, Constantino
  • Ortiz Sánchez, Mª Coral
  • Dover, Colin
  • Johnson, David
Item Type: Article
Título de Revista/Publicación: Applied Spectroscopy
Date: October 2001
Volume: 55
Subjects:
Faculty: E.T.S.I. Agrónomos (UPM) [antigua denominación]
Department: Ingeniería Rural [hasta 2014]
UPM's Research Group: LPF-TAGRALIA
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Time-resolved reflectance has been used for the nondestructive measurement of optical properties in apples. The technique is based on the detection of the temporal dispersion of a short laser pulse injected into the probed medium. The time distribution of re-emitted photons interpreted with a solution of the diffusion equation yields the mean values of the absorption and reduced scattering coefficients of the medium. The proposed technique proved useful for the measurement of the absorption and scattering spectra of different varieties of apples, revealing the spectral shape of chlorophyll. No major variations were observed in the experimental data when the fruit was peeled, showing that the optical properties measured were those of the pulp. With this technique the change in chlorophyll absorption during storage and ripening could be followed. Finally, a compact prototype working at few selected wavelengths was designed and constructed, demonstrating potentialities of the technique for industrial applications

More information

Item ID: 6220
DC Identifier: http://oa.upm.es/6220/
OAI Identifier: oai:oa.upm.es:6220
DOI: 10.1366/0003702011953496
Official URL: http://www.ingentaconnect.com/content/sas/sas/2001/00000055/00000010/art00014
Deposited by: Memoria Investigacion
Deposited on: 01 Mar 2011 11:11
Last Modified: 20 Apr 2016 15:32
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