Development of a Hepatoprotective Herbal Drug from Turnera diffusa

Table 2

Experimental variables used for the optimization of the extraction procedure.

	Low value	Central value	High value
Solvent volume	10 mL	15 mL	25 mL
Stirring time	30 min	60 min	120 min
Stirring speed	100 rpm	200 rpm	300 rpm
Number of extractions	1	3	6