Source Coefficient Estimate
L*
Sum
of squares L*
Df F-value L* P-value
Prob>F L*
Coefficient Estimate
a*/b*
Sum
of squares a*/b*
F-value a*/b* P-value
Prob>F a*/b*
Intercept(β0) 40.63         0.90      
Model   31.35 5 1.19 0.4016**   0.083 0.93 0.5157**
X11) -0.080 0.0388 1 0.0073 0.9344** -0.015 0.00135 0.075 0.7915**
X22) -0.065 0.025 1 0.0048 0.9466** -0.001667 0.001655 0.00093 0.9765**
X1 X23) -2.69 29.05 1 5.51 0.0512** 0.14 0.073 4.07 0.0833**
X124) -0.74 1.50 1 0.28 0.6105** 0.036 0.003655 0.20 0.6650**
X225) 0.76 1.59 1 0.30 0.5998** -0.054 0.007941 0.44 0.5266**
*Significant; ** not significant; lack of fit is not significant at P value >0.05
Table 3: ANOVA of color L* and a*/b* for the infrared dried tomatoes by response surface quadratic model.