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

Table 6

Theoretical and experimental responses recorded for the selected operating conditions.

Extraction conditions		Yield (%)		TPC (mg GAE)/g dry matter)
		Predicted yield (%)	Experimental yield (%)	Predicted TPC	Experimental TPC
Time	30 min	14.29	14.85 ± 1.02	129.75	130.15 ± 2.35
Liquid/solid ration	20 ml/g
Concentration of ethanol	45%