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. 2020 May 15;8:e9150. doi: 10.7717/peerj.9150

Table 2. Values of IC50 (µg/ml) obtained for lichen extract inhibition on tyrosinase activity.

Values calculated with more precision are accompanied by 95% CI (in parentheses).

Lichen species CHCl3 CH3OH /CHCl3 CH3OH H2O
Letharia vulpina >500 >500 67 (52–86) n.d.
Cetraria islandica >500 86 (61–103) >500 >500
Parmotrema perlatum n.d. >500 >500 biphasica
Flavoparmelia caperata n.d. biphasic >500 >500

Notes.

a

Non-monotone trend of the dose-response curve (see also Fig. 1).