Process Optimisation of Ultrasound-Assisted Extraction of Oligosaccharides from Coconut Husk

Table 4

F-value, value, and the correlation effect of the augmented RSM model terms on Response Y₁.

Model terms	F-value	value	Correlation effect
X1	7.22	0.014	+
X2	6.00	0.023	+
X3	0.0318	0.860	−
X4	75.60	<0.001	+
X5	26.07	<0.001	−
X1 X3	6.00	0.023	+
X2 X4	9.19	0.006	−
X3 X4	4.37	0.048	−
X2^2	16.41	0.001	−

is significantly different.