Effect of carbon and nitrogen sources on the chemical composition of lipids of Rhizopus delemar.

Soy bean extract with glucose or oleic acid in the growth medium of Rhizopus delemar affected the production of higher values of biomass, total lipids and total glycerides than when ammonium nitrate was used as a source of nitrogen. The highest amounts of biomass (12.35 g/l) and total lipids (310 mg/g dry biomass) were attained in glucose-grown mycelia. The high proportions of total glycerides and unsaturated fatty acids in lipids of Rhizopus delemar suggest the utilization of such lipid material for nutritional and industrial purposes.