ISHS Acta Horticulturae 604: International Conference on Quality in Chains. An Integrated View on Fruit and Vegetable Quality
INTRODUCING NONDESTRUCTIVE FLESH COLOR AND FIRMNESS SENSORS TO THE TREE FRUIT INDUSTRY |
| Authors: | C. Valero, C. Crisosto, D. Garner, E. Bowerman, D. Slaughter |
| Keywords: | penetrometer, low-mass impact, colorimeter, light emitting diodes |
| Abstract:
The tree fruit industry needs sensors to measure internal fruit properties nondestructively. A prototype optical sensor based on light emitting diodes was used in this work to characterize flesh color. A commercial nondestructive impact sensor (‘Sinclair Internal Quality Firmness Tester’; SIQ-FT, Sinclair Systems International, LLC, Fresno, CA) was also used to measure firmness of the samples, and its relation with the standard penetrometer was studied. Several cultivars of melting flesh peaches, nectarines, and plums were measured throughout the harvesting season in the San Joaquin Valley, California. Correlation coefficients were high for the relationship between penetrometer vs. Sinclair in all cases. Further study should be carried out in the case of the flesh color sensor. | |
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