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. 2014 Mar 17;9(3):e91809. doi: 10.1371/journal.pone.0091809

Figure 7. Absorption spectra for test samples and the Cu-test samples complex at pH 7.4.

Figure 7

a, b, and c, represented the condensed tannins from the leaves, fruit, and stem bark of F. virens; d, e, and f represented catechin, L-DOPA, and L-Try.