Lipid profiling, phenolic content and antioxidant activity of the endophytic fungus Alternaria sp. isolated from Dracaena plant

Abstract

The aim of this study is to present the lipid profile along with the total phenolic contents and antioxidant activities of the ethyl acetate (EtOAc) and methanol (MeOH) extracts of the endophytic fungus Alternaria sp. isolated from Dracaena sp. leaves (Family: Asparagaceae). GC/MS analysis of the petroleum ether (pet. ether) fraction demonstrated high contents of oleic (23.15%), palmitic (23.33%), and linoleic (43.92%) acids. The EtOAc and MeOH extracts displayed a high total phenolic content, which was established by the Folin-Ciocaltue method. Moreover, the EtOAc extract showed considerable free radical scavenging activity (IC50= 0.52 mg/ml) using the DPPH assay and also exhibited substantial reducing power (13.322 mg Ascorbic equiv./g dried extract) by means of the phosphomolybdate complex assay.