Optical detection of mealiness in apples by laser TDRS

Valero Ubierna, Constantino; Barreiro Elorza, Pilar; Ortiz, Christopher; Ruiz-Altisent, Margarita; Cubeddu, Rinaldo; Pifferi, Antonio; Taroni, Paola; Torricelli, Alessandro; Valentini, Gianluca; Johnson, David y Dover, Colin (2001). Optical detection of mealiness in apples by laser TDRS. En: "4th International Conference on Postharvest Science.", 26/03/2000 - 31/03/2000, Jerusalem, Israel. ISBN 978-90-66058-44-6.

Descripción

Título: Optical detection of mealiness in apples by laser TDRS
Autor/es:
  • Valero Ubierna, Constantino
  • Barreiro Elorza, Pilar
  • Ortiz, Christopher
  • Ruiz-Altisent, Margarita
  • Cubeddu, Rinaldo
  • Pifferi, Antonio
  • Taroni, Paola
  • Torricelli, Alessandro
  • Valentini, Gianluca
  • Johnson, David
  • Dover, Colin
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: 4th International Conference on Postharvest Science.
Fechas del Evento: 26/03/2000 - 31/03/2000
Lugar del Evento: Jerusalem, Israel
Título del Libro: Acta Horticulturae. Proceedings of 4th International Conference on Postharvest Science.
Fecha: Junio 2001
ISBN: 978-90-66058-44-6
Volumen: 2
Materias:
Palabras Clave Informales: texture, firmness, fiber optics, time domain reflectance spectroscopy
Escuela: E.T.S.I. Agrónomos (UPM) [antigua denominación]
Departamento: Ingeniería Rural [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

Mealiness is a quality-impairing textural disorder, combining softness and absence of free juiciness. The only current test is destructive; it combines information from a mechanical probe test to classify the samples according to instrumental mealiness. Time-domain laser reflectance spectroscopy (TDRS) can assess simultaneously and independently the absorption of the light inside the irradiated body (µa coefficient) and the scattering of the photons across the tissues µ's, transport scattering coeff.) at each wavelength. With VIS and NIR lasers as light sources, TDRS was applied to Golden Delicious and Cox’s apples (n=90), forming batches of untreated and storage-treated (20°C & 95%RH) samples to induce mealiness. The collected data were clustered into groups according to their instrumental mealiness values. Three to seven optical coefficients were used as independent variables when building discriminant functions, which correctly identified 75-89% of mealy apples.

Más información

ID de Registro: 6248
Identificador DC: http://oa.upm.es/6248/
Identificador OAI: oai:oa.upm.es:6248
URL Oficial: http://www.actahort.org/books/553/553_120.htm
Depositado por: Memoria Investigacion
Depositado el: 02 Mar 2011 12:13
Ultima Modificación: 20 Abr 2016 15:33
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