Combination of an E-Nose and an E-Tongue for Adulteration Detection of Minced Mutton Mixed with Pork

Table 6

Prediction of pork proportion in minced mutton by signals of E-nose, E-tongue, and the combined data set of E-nose and E-tongue.

Data used	Methods	Calibration		Validation
		R^2	RMSEC (%)	R^2	RMSEP (%)
E-nose (variables selected by stepwise LDA)	PLS	0.9609	6.72	0.9092	10.94
	MLR	0.9609	6.72	0.91	10.94
	BPNN	0.9886	3.78	0.9762	5.26
E-tongue	PLS	0.987	3.90	0.9823	7.96
	MLR	0.9869	3.90	0.9827	7.52
	BPNN	0.9950	2.44	0.9956	2.23
Fusion of E-nose and E-tongue	PLS	0.9791	4.90	0.9758	5.37
	MLR	0.9746	5.04	0.9755	5.52
	BPNN	0.9966	2.23	0.9928	3.01