Research Article

Evaluation of the Antioxidant Capacities and Cytotoxic Effects of Ten Parmeliaceae Lichen Species

Table 1

Yields of extraction, antioxidant capacities (ORAC method, DPPH assay, and FRAP method), and total phenolic content of the ten methanol extracts of Parmeliaceae lichens species. Statistical significances (of antioxidant capacities values) for multiple comparisons from Tukey’s test are shown in superscripts. a: statistically significant differences versus values of Bulbothrix setschwanensis; b: versus Flavoparmelia caperata; c: versus Flavoparmelia euplecta; d: versus Flavoparmelia haysomii; e: versus Hypotrachyna cirrhata; f: versus Lethariella canariensis; g: versus Myelochroa irrugans; h: versus Parmelia omphalodes; i: versus Usnea aurantiacoatra; j: versus Usnea contexta ().

Lichen speciesYieldORAC valueDPPH EC50FRAPPhenolic content
(% w/w)(μmol TE/mg dry extract)(μg/mL)(μmol of Fe2+ eq/g sample)(μg GA/mg)

Bulbothrix setschwanensis
Flavoparmelia caperata
Flavoparmelia euplecta
Flavoparmelia haysomii
Hypotrachyna cirrhata
Lethariella canariensis
Myelochroa irrugans
Parmelia omphalodes
Usnea aurantiacoatra
Usnea contexta