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Articles by Thomas P. West
Total Records ( 3 ) for Thomas P. West
  Gang Xie and Thomas P. West
  Seven strains of the fungus Aspergillus niger were screened for their ability to produce citric acid on the ethanol dry milling co-product condensed corn distillers solubles using surface fermentation. It was determined that citric acid production by A. niger strain ATCC 201122 was highest of the strains tested after 144 h of growth on condensed corn distillers solubles. This strain also exhibited the highest citric acid specific productivity and yield among the seven strains studied. In contrast, A. niger strains ATCC 10577 and ATCC 9029 produced the highest biomass levels on the condensed corn distillers solubles after 144 h.
  Gang Xie and Thomas P. West
  .
  Gang Xie and Thomas P. West
  Two strains of the fungus Aspergillus niger were screened for their ability to produce citric acid on corn distillers` dried grains with solubles. It was determined that citric acid production by A. niger ATCC 9029 after 240 h was higher on untreated grains than on autoclaved grains or acid-hydrolyzed grains. In contrast, citric acid production by A. niger ATCC 12846 after 240 h was higher on autoclaved grains than on untreated grains or acid-hydrolyzed grains. Methanol or phosphate supplementation to the grains failed to stimulate citric acid production by either A. niger strain. Biomass production by both strains after 240 h was higher on the treated grains than the untreated grains. The highest citric acid yields were observed following growth of both strains on the untreated grains.
 
 
 
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