Detection of Off-Flavor in Catfish Using a Conducting Polymer Electronic-Nose Technology
AbstractThe Aromascan A32S conducting polymer electronic nose was evaluated for the capability of detecting the presence of off-flavor malodorous compounds in catfish meat fillets to assess meat quality for potential merchantability. Sensor array outputs indicated that the aroma profiles of good-flavor (on-flavor) and off-flavor fillets were strongly different as confirmed by a Principal Component Analysis (PCA) and a Quality Factor value (QF > 7.9) indicating a significant difference at (P < 0.05). The A32S e-nose effectively discriminated between good-flavor and off-flavor catfish at high levels of accuracy (>90%) and with relatively low rates (≤5%) of unknown or indecisive determinations in three trials. This A32S e-nose instrument also was capable of detecting the incidence of mild off-flavor in fillets at levels lower than the threshold of human olfactory detection. Potential applications of e-nose technologies for pre- and post-harvest management of production and meat-quality downgrade problems associated with catfish off-flavor are discussed.
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Wilson, A.D.; Oberle, C.S.; Oberle, D.F. Detection of Off-Flavor in Catfish Using a Conducting Polymer Electronic-Nose Technology. Sensors 2013, 13, 15968-15984.
Wilson AD, Oberle CS, Oberle DF. Detection of Off-Flavor in Catfish Using a Conducting Polymer Electronic-Nose Technology. Sensors. 2013; 13(12):15968-15984.Chicago/Turabian Style
Wilson, Alphus D.; Oberle, Charisse S.; Oberle, Daniel F. 2013. "Detection of Off-Flavor in Catfish Using a Conducting Polymer Electronic-Nose Technology." Sensors 13, no. 12: 15968-15984.