Maximization of production of oxalic acid from Sclerotium rolfsii, a mycoherbicidal agent against Parthenium

Factors affecting oxalic acid production by a mycoherbicidal agent, Sclerotium rolfsii FGCC#640 against Parthenium was recorded in the medium-containing pea as substrate. Richard's broth was used as basal medium. Significant production was recorded in the medium was supplemented with glucose as carbon, ammonium oxalate as nitrogen, 7:1 C/N ratio, pH 8.0, incubated for 14 days at 30 + 2°C. Oxalic acid produced by the fungus was thermostable and showed high herbicidal potential even when exposed at 100°C.