Articles

MECHANICAL PROPERTIES OF TOMATOES (LYCOPERSICON ESCULENTUM MILL.) AS RELATED TO PUNCTURE INJURY SUSCEPTIBILITY

Article number
599_40
Pages
329 – 335
Language
English
Abstract
The relation between mechanical properties of tomato (Lycopersicon esculentum Mill.) and puncture injury susceptibility was investigated.
Two cultivars of known and different susceptibility to puncture damage were considered: Tradiro, moderately resistant and Blitz, very susceptible.
Mechanical properties were determined using a universal testing machine and an acoustic firmness sensor.
The susceptibility to puncture injury was measured by a pendulum test.
By means of Partial Least Squares analysis (PLS) a relationship with a coefficient of determination (R²) of 0.78 was found between the mechanical properties and the puncture injury susceptibility of a tomato cultivar.
It was found that tomatoes which were less susceptible to puncture injury require high forces to puncture the tomato with and without skin and they had a high elasticity of the fruit, a tough skin and a high acoustic firmness.

Publication
Authors
M. Desmet, J. Lammertyn, B.E. Verlinden, B.M. Nicolaï
Keywords
postharvest, damage, multivariate analysis, pendulum
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