On the other hand, anthocyanins have a small absorption at pH 4.5 which is reflected by the fact that the extinction coefficients are smaller than the corresponding value in pH 1.0 medium (Fuleki and Francis 1968).
On the other hand, anthocyanins have asmall absorption at pH 4.5 which is reflected by the fact thatthe extinction coefficients are smaller than the correspondingvalue in pH 1.0 medium (Fuleki and Francis 1968).