Fumaric acid is a promising monomer to obtain biomass-based polyesters and polyamides, it mainly produced by fungi of the Rhizopus genus in medium high titters. The use glucose, main component starchy cellulosic food waste, as carbon source, together with low-nitrogen source concentration, route reduce process costs. In this work, effects nitrogen carbonate sources on arrhizus NRRL 1526 morphol...