The antioxidant potential using DPPH radical scavenging
assay was investigated for the 21 ethyl acetate extracts of
endophytic fungi and their medicinal host plants. Table 2
showed that TAC IC50 values of the medicinal host plants
ranged from (50.0 ± 1.7) mg/mL (V. amygdalina stem) to no
activity (T. foenum-graecum seeds). The endophyte extracts
revealed extremely wide range of IC50 values, from (18.0 ± 0.1)
mg/mL for Aspergillus sp. isolated from T. foenum-graecum to
(2 686.0 ± 51.7) mg/mL for Phoma sp. in C. roseus.
A high positive linear correlation (R2 = 0.999 1) was found
between TAC and TPC of endophytic fungi isolated from
V. amygdalina. Endophytic fungi isolated from T. foenum-