http://www.cnr.it/ontology/cnr/individuo/prodotto/ID25124

Time-resolved reflectance spectroscopy for nondestructive assessment of fruit and vegetable quality (Contributo in atti di convegno)

Type

Prodotto della ricerca (Classe)
Contributo in atti di convegno (Classe)

Label

Time-resolved reflectance spectroscopy for nondestructive assessment of fruit and vegetable quality (Contributo in atti di convegno) (literal)

Anno

2007-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

10.1117/12.751793 (literal)

Alternative label

Torricelli, Alessandro; Spinelli, Lorenzo; Vanoli, Maristella; Rizzolo, Anna; Zerbini, Paola Eccher (2007)
Time-resolved reflectance spectroscopy for nondestructive assessment of fruit and vegetable quality
in Optics for Natural Resources, Agriculture, and Foods II, Boston, MA; United States, 10 - 11 September 2007
(literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

Torricelli, Alessandro; Spinelli, Lorenzo; Vanoli, Maristella; Rizzolo, Anna; Zerbini, Paola Eccher (literal)

Pagina inizio

67610Y (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#altreInformazioni

in Optics for Natural Resources, Agriculture, and Foods II, Yud-Ren Chen, George E. Meyer, Shu-I Tu, Editors, Proc. SPIE Vol. 6761, 67610Y-8 (2007) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url

http://www.scopus.com/record/display.url?eid=2-s2.0-42449100919&origin=inward (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

6761 (literal)

Rivista

Proceedings of SPIE, the International Society for Optical Engineering (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali

8 (literal)

Note

Scopu (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

Consiglio Nazionale delle Ricerche; IVTPA (literal)

Titolo

Time-resolved reflectance spectroscopy for nondestructive assessment of fruit and vegetable quality (literal)

Abstract

In the majority of food and feed, due to the microscopic spatial changes in the refractive index, visible (VIS) and near infrared (NIR) light undergoes multiple scattering events and the overall light distribution is determined more by scattering rather than absorption. Conventional steady state VIS/NIR reflectance spectroscopy can provide information on light attenuation, which depends both on light absorption and light scattering, but cannot discriminate these two effects. On the contrary, time-resolved reflectance spectroscopy (TRS) provides a complete optical characterisation of diffusive media in terms of their absorption coefficient and reduced scattering coefficient. From the assessment of the absorption and reduced scattering coefficients, information can then be derived on the composition and internal structure of the medium. Main advantages of the technique are the absolute non-invasiveness, the potentiality for non-contact measurements, and the capacity to probe internal properties with no influence from the skin. In this work we review the physical and technical issues related to the use of TRS for nondestructive quality assessment of fruit and vegetable. A laboratory system for broadband TRS, based on tunable mode-locked lasers and fast microchannel plate photomultiplier, and a portable setup for TRS measurements, based on pulsed diode lasers and compact metal-channel photomultiplier, will be described. Results on broadband optical characterisation of fruits and applications of TRS to the detection of internal defects in pears and to maturity assessment in nectarines will be presented. (literal)

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