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ABSTRACT
In this study, five groups of sequentially spoiled crabmeat were evaluated by a trained sensory panel, and these results were compared with the findings from a Cyranose 320 Electronic Nose and Draeger gas analyzer. Using the electronic nose with filtered compressed breathing air yielded the best results. Although this approach resulted in 100 % separation of the known groups, only 30% of the coded unknown samples were correctly identified. All 5 groups of samples analyzed using Draeger-Tubes were found to be significantly different at α = 0.05 using a Tukey-Kramer ANOVA statistical procedure. The coded unknown samples were correctly identified at a rate of 83%. The simplicity and precision of this latter procedure may present opportunities for use of Draeger-Tubes by crab processing industries and other food processing industries as an objective method for quality control.
Luis F. Martinez and Dr. Murat Balaban from the University of Florida are recognized for recommending the compressed air method. The idea of using compressed breathing air that cycles into sample containers was first developed at the University of Florida. A similar setup was used for this study. Funding for this research was provided by the Virginia Sea Grant Program, the World Food Logistics Organization, the International Association of Refrigerated Warehouses (WFLO/IARW), and the National Fisheries Institute (NFI) Scholarship Program.