Extraction methods Temperature Time Volume of extract Concentration of anthocyanins in extract Proteins Sugar
(°C) (h) (mL) (mg/L) (mg) (mg)
Acidified ethanol extraction 50 2 180 15.20 ± 1.36 16.86 ± 0.98 370.54 ± 10.38
Aqueous two-phase extraction 15-30 <1 33.5 80.34 ± 3.46 7.14 ± 0.32 127.60 ± 9.36
Data are the means ± SDs from three different experiments
Table 1: Comparison between acidified ethanol extraction and aqueous two-phase extraction.