Ultrasound-Assisted Enzymatic Extraction of Adenosine from Vietnamese Cordyceps militaris and Bioactivity Analysis of the Extract

Table 3

ANOVA for quadratic model.

Source	Sum of squares	Mean squares	F value	value
Model	6.43	0.7143	346.97	<0.0001
X1: ultrasonic time	0.0005	0.0005	0.2444	0.6420^b
X2: ultrasonic temperature	0.0150	0.0150	7.30	0.0427^a
X3: ultrasonic power	0.0271	0.0271	13.17	0.0151^a
X1 X2	0.0016	0.0016	0.7619	0.4227^b
X1 X3	0.0126	0.0126	6.12	0.0562^a
X2 X3	0.0222	0.0222	10.76	0.0219^a
	2.54	2.54	1233.66	<0.0001^a
	2.42	2.42	1174.77	<0.0001^a
	2.37	2.37	1150.31	<0.0001^a
Residual	0.0103	0.0021
Lack of fit	0.0097	0.0032	11.27	0.0826
Pure error	0.0006	0.0003
Cor. total	6.44
R ^2	0.9984	Std. dev.	0.0454
Adj-R^2	0.9955	C.V.%	3.04

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