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Total anthocyanin content (as C3GE) adsorbed by grey hair (μg/mg of hair) and concentration of total anthocyanin contents at initial (conc, μg/ml) compared ash-pretreated grey hair (−●−) and control (…○…), at 25 ± 2 °C for 1 h, n = 5 each and error bars = standard deviations and * = p < 0.05.
