Concomitant loss of respiratory chain NADH: ubiquinone reductase (complex I) and citric acid accumulation in Aspergillus niger

1991 ◽  
Vol 36 (1) ◽  
pp. 76-81 ◽  
Author(s):  
J�rgen Wallrath ◽  
Michael Schmidt ◽  
Hanns Weiss
Keyword(s):  
Citric Acid ◽  
Aspergillus Niger ◽  
Respiratory Chain ◽  
Complex I ◽  
Acid Accumulation ◽  
Citric Acid Accumulation

Pyridine nucleotide levels and ratios in Aspergillus niger

1980 ◽  
Vol 26 (3) ◽  
pp. 405-408 ◽  
Author(s):  
L. Führer ◽  
C. P. Kubicek ◽  
M. Röhr
Keyword(s):  
Citric Acid ◽  
Aspergillus Niger ◽  
Filamentous Fungi ◽  
Reliable Method ◽  
Pyridine Nucleotide ◽  
Pyridine Nucleotides ◽  
Metabolic State ◽  
Acid Accumulation ◽  
Reduction Charge ◽  
Citric Acid Accumulation

A reliable method for the extraction and assay of pyridine nucleotides (NAD, NADH, NADP, and NADPH) in filamentous fungi is presented. The method is applied to a study of the physiology of citric acid accumulation by Aspergillus niger. The measurement of "catabolic reduction charge" (NADH/(NAD + NADH)) and "anabolic reduction charge" (NADPH/(NADP + NADPH)) as a means of characterizing the metabolic state is discussed.

Temperature Optima for Citric Acid Accumulation by Aspergillus niger

2002 ◽  
Vol 1 (2) ◽  
pp. 108-110 ◽  
Author(s):  
Asad-ur- Rehman ◽  
Sikander Ali ◽  
Ikram-ul- Haq
Keyword(s):  
Citric Acid ◽  
Aspergillus Niger ◽  
Acid Accumulation ◽  
Temperature Optima ◽  
Citric Acid Accumulation
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