Evaluation of a Kiwifruit Non-Destructive Firmness Sensory

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Non-destructive firmness sensors have recently become available for packers and fruit handlers although they demand more information on their performance and reliability. A commercial sensor based on low mass impact has been tested on kiwifruit. Correlation between the firmness index given by the device and Magness-Taylor force was low (r2 = 0.594). Classifications modeled with discriminant analysis showed that it is feasible to sort samples into two firmness groups (96 to 91%), but classification into three classes yields lower scores.

Authors: 
Carlos H. Crisosto
Authors: 
Constantino Valero
Authors: 
David Slaughter
Publisher: 
UC Davis Department of Food Science and Technology
Year: 
2,009