Table 4. Analysis of variance for itaconic acid production from mango peels.

Source	DF	Adj SS	Adj MS	F-Value	P-Value
Model	20	10.8460	0.542298	20.49	0.000
Linear	5	1.6533	0.330667	12.49	0.000
A	1	0.0135	0.013498	0.51	0.490
B	1	0.4861	0.486138	18.36	0.001
C	1	0.0593	0.059277	2.24	0.163
D	1	0.1322	0.132244	5.00	0.047
E	1	0.0120	0.011995	0.45	0.515
Square	5	0.1122	0.022440	0.85	0.544
A * A	1	0.0227	0.022688	0.86	0.374
B * B	1	0.0058	0.005818	0.22	0.648
C * C	1	0.0008	0.000806	0.03	0.865
D * D	1	0.0015	0.001470	0.06	0.818
E * E	1	0.0587	0.058746	2.22	0.164
2-Way Interaction	10	0.0825	0.008246	0.31	0.962
A * B	1	0.0273	0.027292	1.03	0.332
A * C	1	0.0272	0.027210	1.03	0.332
A * D	1	0.0152	0.015155	0.57	0.465
A * E	1	0.0358	0.035802	1.35	0.269
B * C	1	0.0424	0.042394	1.60	0.232
B * D	1	0.0123	0.012251	0.46	0.510
B * E	1	0.0014	0.001362	0.05	0.825
C * D	1	0.0345	0.034499	1.30	0.278
C * E	1	0.0349	0.034865	1.32	0.275
D * E	1	0.0045	0.004481	0.17	0.689
Error	11	0.2912	0.026471
Lack-of-fit	10	0.2912	0.029118	*	*
Pure error	1	0.0000	0.000000
Total	31	11.1371

Note:

^*Indicates not significant.