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. 2020 Feb 19;6(2):e03170. doi: 10.1016/j.heliyon.2020.e03170

Figure 3.

Figure 3

Laccase-mediator system b Structures of some representative artificial (ABTS, HBT, violuric acid -VIO-, TEMPO, promazine -PZ- and 1-nitroso-naphthol- 3,6-disulfonic acid -NNDS-) and natural mediators (AS, SA, vanillin, acetovanillone, p-coumaric acid, ferulic acid, and sinapic acid) (Kunamneni et al., 2008a, b).