In this study, three extracts of the aerial parts of Notobasis syriaca and Scolymus maculatus were prepared. Each extract was tested for antifungal activity against Rhizopus stolonifer (black mold), and its total phenolic content (TPC) and antioxidant activity were measured. As for these measurements, we report here a facile method that we developed. Our results show moderate antifungal activity for both plants extracts, notably high TPC and antioxidant capacities. They are also in very good agreement with the partial published data, and our new method is consistent and validated by very well known, yet complicated or expensive methods.