Purification of Anthocyanins Derived from Black Kidney Bean (Phaseolus vulgaris L.) by a Simulated Moving Bed

Table 1

The IC₅₀ of free radical scavenging capacity for BKBA (μg/mL).

Sample	IC50 of DPPH scavenging activity	IC50 of ABTS+∙ scavenging activity
Distilled water	18.34 ± 0.36^e	35.21 ± 0.52^e
20% ethanol	4.86 ± 0.05^b	8.17 ± 0.13^b
40% ethanol	0.95 ± 0.03^a	2.14 ± 0.11^a
60%	7.79 ± 0.22^d	16.32 ± 0.35^d
VC	5.26 ± 0.08^c	9.69 ± 0.16^c

Letters a–e indicate intergroup differences at .