Riboflavin production by Aspergillus terreus from beet-molasses.
Aspergillus terreus was used for riboflavin (vitamin B2) production in a medium containing beet molasses as the sole carbon source. Growth and the vitamin production of the fungus were markedly affected by the composition of the culture medium. A maximum riboflavin yield was achieved at the late exponential growth phase (16 day-old cultures) in the presence of (g/l): centrifuged beet-molasses, 90; L-asparagine, 1; MgSO4.7H2O, 0.5; K2HPO4/kH2PO4 (1:1), 5; and the medium initially adjusted to pH 8.
Sabry
S A
SA
Department of Botany and Microbiology, Faculty of Science, Alexandria University, Egypt.
Ghanem
K M
KM
Ghozlan
H A
HA
D001216:Asparagine / Q000378:metabolism; D001230:Aspergillus / Q000254:growth & development / Q000378:metabolism*; D003470:Culture Media; D005285:Fermentation; D005947:Glucose / Q000032:analysis; D006863:Hydrogen-Ion Concentration; D007218:Industrial Microbiology; D007700:Kinetics; D008278:Magnesium Sulfate / Q000494:pharmacology; D008965:Molasses; D010710:Phosphates / Q000494:pharmacology; D017680:Potassium Compounds / Q000494:pharmacology; D012256:Riboflavin / Q000096:biosynthesis*; D014675:Vegetables
D003470:Culture Media; D010710:Phosphates; D017680:Potassium Compounds; D001216:Asparagine; D008278:Magnesium Sulfate; C013216:potassium phosphate; D005947:Glucose; D012256:Riboflavin