Prediction of apple bruising based on the instantaneous impact shear stress and energy absorbed
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| Authors: | Y. Yuwana1, F. Duprat2 1Faculty of Agriculture, Bengkulu University, Jln. Raya Kandang Limun, Bengkulu, Indonesia 2INRA, Laboratoire de Méthodes Physiques d'Etude, Site Agroparc, Domaine Saint Paul, F 84914 Avignon cedex 9, France |
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| Abstract : | A b s t r a c t. Instantaneous impact shear stress together with the instantaneous energy absorbed were used to predict bruise volume in Golden Delicious apple. The pre-diction produced a linear relation between the predicted bruise volumes and the measured bruise volumes with a factor of proportionality (K) 1.08 and a coefficient of correlation (R) 0.949. Both the instantaneous impact shear stress and energy absorbed decreased during storage of the fruit, but the value of K was relatively constant. The value of K was also relatively constant for the impact with small drop heights, but it slightly increased with the variation of fruit mass. |
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| Keywords : | apple, instantaneous impact shear stress, instantaneous energy absorbed, predicted bruise volume, measured bruise volume. | ||||||||
| Language : | English | ||||||||