Abstract

• In the course of isolation of soil fungi, thirteen different kinds of fungi were isolated from five mangrove soil samples. These soil samples were collected at Magyi Channel. The isolation was undertaken by serial dilution method and using Low Carbon Agar medium (LCA medium). Potato Glucose Agar Medium (PGA medium) was utilized as transfer medium to get pure culture. Antimicrobial activities of these fungi were evaluated by agar well diffusion assay with five test organisms. Among them, eight fungi showed antimicrobial activity. Especially, NFO-9 gave the best antibacterial activity on Pseudomonas fluorescens. Therefore,different fermentation parameters of NFO-9 were studied by the fermentation period, age and size of inoculums, pH and fermentation medium on Pseudomonas fluorescens.