From: Evaluation of antimicrobial and cytotoxic effects of Echinacea and Arctium extracts and Zataria essential oil
Samples
Total phenol (mg/g)
Total flavonoid (mg/g)
Arctium lappa
19.35
12.29
Echinacea purpurea
22.99
86.21
Zateria multiflora
151.69
77.23