A study of some factors affecting surface culture production of citric acid from cane sugar by a Philippine strain of Aspergillus niger B-65

A black mold identified as apergillus niger and designated as A. niger B-65 was single out from 300 mold isolates, obtained from rotting fruits and vegetables, for its citric acid-producing capacity superior to those of foreign molds: A. niger NRRL 3,A. niger 599 and Rhizopus stolonifer NRRL-1477. H...

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