Table 1.

Antioxidant activity and polyphenolic compounds in Fontinalis antipyretica. Legend: TPC—total phenolic content, RSA—radical scavenging activity, CUPRAC—CUPric Reducing Antioxidant Capacity.

Sample	TPC mg GAE/100 g	RSA %	CUPRAC Assay mM TE/g
Background	49.9 ± 1.6	77.9	1.45 ± 0.1
Kardzhali	29.3 ± 1.8	54.9	2.44 ± 0.14
Studen Kladenets	27.3 ± 0.4	80.2	1.34 ± 0.08
Zhrebchevo	29.0 ± 0.4	74.2	0.85 ± 0.05