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Characterising pressure and bruising in apple fruit\ud

By R. Lewis, A. Yoxall, M.B. Marshall and L.A. Canty

Abstract

A large percentage of apples are wasted each year due to damage such as bruising. The apple journey from orchard to supermarket is very complex and apples are subjected to a variety of static and dynamic loads that could result in this damage occurring. The aim of this work was to use a novel ultrasonic technique to study apple contact areas and stresses under static loading that may occur, for example, in bulk storage bins used during harvesting. These results were used to identify load thresholds above which unacceptable damage occurs. They were also used to validate output from a finite element model, which will ultimately be developed into a packaging design tool to help reduce the likelihood of apple damage occurring. \ud \u

Publisher: Elsevier B.V
Year: 2007
OAI identifier: oai:eprints.whiterose.ac.uk:3600

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