Olive Mill Waste Extracts: Polyphenols Content, Antioxidant, and Antimicrobial Activities

Table 4

Scavenging effects (EC₅₀ μg/mL) of OCE and OWWE on DPPH free radicals.

	OCE		OWWE		Vitamin C
	Plain area	Mountainous area	Plain area	Mountainous area
EC50 (μg/mL)	168.0 ± 48	157.7 ± 34.9	32.7 ± 4.5	12.1 ± 5.6	3.2 ± 0.6

Antiradical activity EC₅₀ (μg/mL) was defined as the concentration of extracts necessary to decrease the initial DPPH radical concentration by 50%. Values are means standard deviation (SD) of three measurements ().