Table 2. Total polyphenolics contents and ABTS radical scavenging activity to extraction temperature and extraction time of Rubus occidentalis extract

Temperature (°C)	Time (h)	Polyphenolics contents (mg/g)	ABTS radical scavenging activity (μg/mL, IC₅₀)
20	1	29.12±0.57^a¹⁾	206.25±4.32^a
	2	28.50±0.30^a	207.12±3.79^a
	3	27.13±2.09^ab	213.40±3.95^b
60	1	30.81±0.95^a	194.34±3.15^a
	2	32.28±1.17^ab	191.42±2.61^a
	3	30.32±1.66^a	189.65±3.54^ab
90	1	29.83±0.93^a	198.36±3.55^a
	2	31.03±0.61^ab	185.45±4.05^b
	3	30.60±1.27^a	176.49±3.95^c
Ascorbic acid			18.45±0.54

Means with the same small letter in each bar are not significantly different at p<0.05 using Duncan’s multiple range test.