. 2013 Jan 22;51(12):3609–3622. doi: 10.1007/s13197-013-0923-0

Table 4.

Statistical parameters and model constants of semi-theoretical models for modelling the drying kinetics of guava slices

Name of model	Statistical parameters and model constants	Various temperature-thickness combinations									Master-curve	Optimal condition
		55 °C			65 °C			75 °C			55–75 °C	70 °C
		3 mm	6 mm	9 mm	3 mm	6 mm	9 mm	3 mm	6 mm	9 mm	3–9 mm	6 mm
Newton	R ²	0.9902	0.9890	0.9932	0.9855	0.9891	0.9910	0.9850	0.9873	0.9925	0.9897	0.9927
	χ ²	1.228E-03	1.407E-03	8.603E-04	1.753E-03	1.360E-03	1.153E-03	1.895E-03	1.521E-03	9.245E-04	1.205E-03	8.978E-04
	RMSE	0.03366	0.03632	0.02851	0.03972	0.03543	0.03280	0.04104	0.03719	0.02921	0.03456	0.02869
Page	R ²	0.9977	0.9988	0.9994	0.9978	0.9989	0.9993	0.9988	0.9993	0.9997	0.9988	0.9995
	χ ²	3.095E-04	1.584E-04	7.789E-05	2.982E-04	1.497E-04	8.934E-05	1.767E-04	8.645E-05	3.618E-05	1.452E-04	6.237E-05
	RMSE	0.01618	0.01177	0.00832	0.01545	0.01126	0.00880	0.01172	0.00841	0.00553	0.01195	0.00721
Henderson and Pabis	R ²	0.9922	0.9921	0.9953	0.9887	0.9922	0.9938	0.9882	0.9914	0.9954	0.9925	0.9950
	χ ²	1.065E-03	1.087E-03	6.290E-04	1.534E-03	1.052E-03	8.469E-04	1.698E-03	1.147E-03	6.242E-04	8.798E-04	6.771E-04
	RMSE	0.03002	0.03084	0.02365	0.03503	0.02984	0.02709	0.03634	0.03064	0.02298	0.02941	0.02375
Logrithmic	R ²	0.9961	0.9976	0.9988	0.9976	0.9979	0.9981	0.9980	0.9979	0.9984	0.9974	0.9982
	χ ²	5.906E-04	3.568E-04	1.702E-04	3.778E-04	3.126E-04	2.821E-04	3.449E-04	3.066E-04	2.316E-04	3.062E-04	2.655E-04
	RMSE	0.02131	0.01703	0.01191	0.01626	0.01551	0.01502	0.01516	0.01493	0.01335	0.01720	0.01411
Two term	R ²	0.9922	0.9921	0.9953	0.9887	0.9922	0.9938	0.9882	0.9914	0.9954	0.9925	0.9950
	χ ²	1.302E-03	1.268E-03	7.189E-04	2.045E-03	1.286E-03	1.001E-03	2.377E-03	1.475E-03	7.629E-04	8.953E-04	8.463E-04
	RMSE	0.03002	0.03084	0.02365	0.03503	0.02984	0.02709	0.03634	0.03064	0.02298	0.02941	0.02375
Midilli-Kucuk^a	R ²	0.9982	0.9994	0.9997	0.9989	0.9995	0.9996	0.9996	0.9998	0.9998	0.9991	0.9997
	χ ²	3.048E-04	1.004E-04	4.090E-05	1.958E-04	9.103E-05	5.708E-05	9.054E-05	3.478E-05	2.726E-05	1.028E-04	4.844E-05
	RMSE	0.01453	0.00868	0.00564	0.01084	0.00794	0.00647	0.00709	0.00470	0.00434	0.009964	0.00568
	k (min^-1)	2.592E-03	1.348E-03	1.579E-03	4.402E-03	2.493E-03	1.943E-03	5.779E-03	3.308E-03	3.206E-03	2.436E-03	3.861E-03
	n	1.217	1.230	1.163	1.185	1.195	1.197	1.201	1.198	1.164	1.200	1.165
	a	0.9821	0.9839	0.9899	0.9920	0.9911	0.9901	0.9952	0.9964	0.9987	0.9898	0.9949
	b (min^-1)	−2.218E-05	−2.660E-05	−2.284E-05	−1.853E-04	−5.936E-05	−2.735E-05	−2.048E-04	−9.348E-05	−2.856E-05	−4.144E-05	−3.690E-05

^abest fitted model