An electronic nose (e-nose) was used to establish a freshness evaluation model for pork. A pre-experiment was performed to acquire optimum parameters (10 g sample mass with 5 min headspace-generation time in 500 mL vial) for later e-nose detection of pork. Responding signals of the e-nose were extracted and analyzed. Linear Discriminant Analysis (LDA) results showed that the e-nose could classify pork with different storage time (ST) well. Back Propagation Neural Network (BPNN) was performed to predict the ST, and the results showed that 97.14% of the predicting set (with 95.71% of the training set) was classified correctly; and Multiple Linear Regression (MLR) was used to predict the sensory scores, with the results showing that the correlation coefficients (R 2 = 0.9848) between the e-nose signals and the sensory scores was high. These results prove that e-nose has the potential of assessing pork freshness. © 2012 IFIP Federation for Information Processing.
CITATION STYLE
Hong, X., & Wang, J. (2012). Discrimination and prediction of pork freshness by E-nose. In IFIP Advances in Information and Communication Technology (Vol. 370 AICT, pp. 1–14). https://doi.org/10.1007/978-3-642-27275-2_1
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