Assessment of tarocco orange fruit firmness by standard and non-destructive tests
Author(s)
Pallottino, Federico
Date Issued
February 17, 2011
Type
Doctoral Thesis
Abstract
This PhD thesis dealt with the assessment of the rheometrical (apparent
Poisson’s ratio, apparent modulus of elasticity, viscoelastic constants and
relaxation time spectrum), chemico-physical (total solid content, titratable acidity,
Magness-Taylor firmness, rind and juice colorimetric analyses and rind
thickness), and sensory properties of Tarocco blood oranges, as well as the real
contact surface during fruit compression tests by two innovative image analysis
techniques. An operating tool to grade on-line orange fruits with a resistance per
unit diameter (F/D) ranging from 220 to 420 N m-1 was identified.
Additional information
Dottorato di ricerca in Biotecnologia degli alimenti
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