title: Citric acid production by Aspergillus niger in surface culture on inulin.
abstract: Aspergillus niger produces citric acid during surface fermentation on inulin, a reserve carbohydrate of plant tubers. Citric acid yields can be improved by airflow over the surface of the fermentation but yields from inulin are 20-30% lower than from sucrose, the traditional commercial substrate.
authors.affiliation: Department of Food Science (Microbiology), Queen's University of Belfast, UK.
authors.forename: C R
authors.initials: CR
authors.lastname: Drysdale
authors.forename: A M
authors.initials: AM
authors.lastname: McKay
mesh_terms: D001234:Aspergillus niger / Q000378:metabolism*; D002951:Citrates / Q000096:biosynthesis*; D019343:Citric Acid; D003470:Culture Media / Q000737:chemistry; D005285:Fermentation; D007444:Inulin
chemical_list: D002951:Citrates; D003470:Culture Media; D019343:Citric Acid; D007444:Inulin