Secondary Metabolite of Endophytic Fungi Daldinia eschscholtzii from The Leaves of Syzygium polyanthum

Abstract

Salam (Syzygium polyanthum) is a plant that is often used by Indonesian people as traditional medicine. The leaves are consumed to treat various diseases. This study reports the endophytic fungi found from S. polyanthum leaves and its secondary metabolites. Endophytic fungi species were determined through morphological and molecular identification. The extraction process used ethyl acetate as a solvent and potato dextrose broth medium for growing. Antioxidant tests was carried out by using the DPPH method. Secondary metabolites were isolated using chromatographic methods, and the chemical makeup was determined through spectroscopic analysis. The sample was identified as Daldinia eschscholtzii by the findings of the morphological and molecular analyses. The secondary metabolite obtained from this endophytic fungi was idetified as fonsecinone A with good antioxidant activity. The secondary metabolite have the potential to become a source antioxidants through further research.