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- Author or Editor: D. Nahir x
An instrument for in-the-field testing of citrus fruit firmness has been developed and tested. Linear deformation of a fruit along its diameter under the pressure of a constant force was found a good criterion of weight loss, and hence firmness of citrus.
A technique is proposed based on the viscoelastic properties of citrus fruit, using the initial deformation in a creep test as indicative of fruit firmness. This method has the advantage of being simple, objective, and replicable.