Detection of Adulteration in Food Using Recurrent Neural Network with Internet of Things

Table 1

Fitting parameters of the FOE13 sensor dipped in urea adulterated milk.

Test sample	pH value	Exp. Q × 10^2	Exp. α	R^2	R1 (kΩ)	CP (nF)	RD (kΩ)	Q1 × 10^2	α1
Milk (250 ml)	6.62	1.89	0.53	0.999	0.166	3.84	0.48	2.01	0.681
Milk + 0.6 mg/ml urea	6.58	1.86	0.51	0.998	0.153	3.52	0.35	1.79	0.659
Milk + 0.8 mg/ml urea	6.55	1.82	0.49	0.997	0.150	3.36	0.31	1.33	0.626
Milk + 1.0 mg/ml urea	6.52	1.80	0.47	0.998	0.148	3.33	0.28	1.11	0.618
Milk + 1.4 mg/ml urea	6.44	1.78	0.44	0.995	0.145	3.21	0.25	1.08	0.608