Ultrasound-Assisted Extraction of Phenolic Compounds from Moroccan Lavandula stoechas L.: Optimization Using Response Surface Methodology

Table 3

Analysis of variance for the fitted models.

	Yield (%)					TPC
Model	DF	SS	MS	F	‐value	DF	SS	MS	F	‐value
R	9	434.62	48.29	13.94	0.005	9	12142.34	1349.15	6.60	0.03
R	5	17.32	3.46			5	1022.80	204.56
Total	14	451.95				14	13165.14

DF: degrees of freedom; SS: sum of squares; MS: mean square; R: regression; r: residual.