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

Table 3

Comparison of TMB and SMB.

Items	Column chromatography	SMB chromatography
Chromatographic columns numbers	20	20
Resin addition	5 L	5 L
Feeding mode	Indirect	Continuity
Control mode	Manual	Automatic
Processing quantity	3.6 L/d	18 L/d
Alcohol consumption: processing quantity	6.4^b	3.04^a
Water consumption: processing quantity	9.6^b	6.08^a
BKBA purity (%)	24.35 ± 0.16%^a	24.61 ± 0.21%^a
BKBA yield (%)	86.76 ± 0.29%^a	87.85 ± 0.32%^a

Letters a and b indicate intergroup differences .