Addressing potential sources of variation in several non-destructive techniques for measuring firmness in apples

Molina Delgado, Diana and Alegre, S. and Barreiro Elorza, Pilar and Valero Ubierna, Constantino and Ruiz-Altisent, Margarita and Recasens, I. (2009). Addressing potential sources of variation in several non-destructive techniques for measuring firmness in apples. "Biosystems Engineering", v. 104 (n. 1); pp. 33-46. ISSN 1537-5110. https://doi.org/10.1016/j.biosystemseng.2009.05.004.

Description

Title: Addressing potential sources of variation in several non-destructive techniques for measuring firmness in apples
Author/s:
  • Molina Delgado, Diana
  • Alegre, S.
  • Barreiro Elorza, Pilar
  • Valero Ubierna, Constantino
  • Ruiz-Altisent, Margarita
  • Recasens, I.
Item Type: Article
Título de Revista/Publicación: Biosystems Engineering
Date: September 2009
ISSN: 1537-5110
Volume: 104
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

Measurements of firmness have traditionally been carried out according to the Magness Taylor (MT) procedure; using a texture analyser or penetrometer in reference texture tests. Non-destructive tests like the acoustic impulse response of acoustic firmness sensors (AFSs), a low-mass impact firmness sensor Sinclair International (SIQ-FT) and impact test (Lateral Impact – UPM) have also been used to measure texture and firmness. The objectives of this study were to evaluate the influence of different sources of variation in these three non-destructive tests and to evaluate their respective capabilities of discriminating between fruit maturity at two different harvest dates, turgidity before and after dehydration treatment and ripening after different storage periods. According to our results, fruit studied an unexpected AFS trend with turgidity. Contact measurements (Lateral Impact – UPM and SIQ-FT) appeared highly sensitive to changes in turgidity, but were less able to follow changes in ripening caused by storage period. Contact measurements were suitable for detecting differences between fruits from different harvest dates and showed higher correlation coefficients with reference texture tests than acoustic measurements. The Lateral Impact – UPM test proved better at separating fruits according to turgidity than the SIQ-FT instrument

More information

Item ID: 5027
DC Identifier: http://oa.upm.es/5027/
OAI Identifier: oai:oa.upm.es:5027
DOI: 10.1016/j.biosystemseng.2009.05.004
Official URL: http://www.sciencedirect.com/science/journal/15375110
Deposited by: Memoria Investigacion
Deposited on: 19 Nov 2010 09:18
Last Modified: 20 Apr 2016 14:00
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