Submerged Citric Acid Fermentation of Sugar Beet Molasses. Effect of Ferrocyanide Control

1962 ◽  
Vol 1 (1) ◽  
pp. 59-62 ◽  
Author(s):  
D. S. Clark
Keyword(s):  
Citric Acid ◽  
Sugar Beet ◽  
Acid Fermentation ◽  
Beet Molasses ◽  
Citric Acid Fermentation ◽  
Sugar Beet Molasses

SUBMERGED CITRIC ACID FERMENTATION OF FERROCYANIDE-TREATED BEET MOLASSES: MORPHOLOGY OF PELLETS OF ASPERGILLUS NIGER

1962 ◽  
Vol 8 (1) ◽  
pp. 133-136 ◽  
Author(s):  
D. S. Clark
Keyword(s):  
Citric Acid ◽  
Aspergillus Niger ◽  
Internal Structure ◽  
Volume Changes ◽  
Acid Fermentation ◽  
Fermentation Conditions ◽  
Uniform Consistency ◽  
Beet Molasses ◽  
Citric Acid Fermentation

A study of the internal structure of Aspergillus niger pellets, grown during submerged citric acid fermentation of ferrocyanide-treated beet molasses, was made using botanical microtechniques. Under optimum fermentation conditions, each pellet developed as a round mass of mycelium of uniform consistency during the first 24 hours of the fermentation (mash sparged with air); subsequently (mash sparged with oxygen), a dense crust of growth formed at the periphery of the pellet and autolysis of cells at the center began. At the end of fermentation (140 hours), the pellet consisted of a shell of mycelium occupying less than 50% of the pellet volume. Changes in fermentation conditions were reflected in the density of peripheral growth and in the rate and extent of autolysis.

scholarly journals Evaluation of sugar-beet molasses of the season 1963 for the production of citric acid.

1965 ◽  
Vol 11 (1) ◽  
pp. 13-16
Author(s):  
A. ČEJKOVÁ ◽  
J. RYBÁŘOVÁ ◽  
M. ŠESTÁKOVÁ
Keyword(s):  
Citric Acid ◽  
Sugar Beet ◽  
Beet Molasses ◽  
Sugar Beet Molasses

scholarly journals Quality of sugar beet molasses of 1962 crop designated for plants manufacturing citric acid.

1963 ◽  
Vol 9 (11) ◽  
pp. 259-262
Author(s):  
A. ČEJKOVÁ ◽  
M. VOJKOVSKÁ ◽  
J. RYBÁŘOVÁ
Keyword(s):  
Citric Acid ◽  
Sugar Beet ◽  
Beet Molasses ◽  
Sugar Beet Molasses

scholarly journals Citric Acid Fermentation of Beet Molasses 1

1946 ◽  
Vol 52 (5) ◽  
pp. 555-564 ◽  
Author(s):  
Philipp Gerhardt ◽  
W. W. Dorrell ◽  
I. L. Baldwin
Keyword(s):  
Citric Acid ◽  
Acid Fermentation ◽  
Beet Molasses ◽  
Citric Acid Fermentation

SUBMERGED CITRIC ACID FERMENTATION OF SUGAR BEET MOLASSES: EFFECT OF PRESSURE AND RECIRCULATION OF OXYGEN

1961 ◽  
Vol 7 (4) ◽  
pp. 447-453 ◽  
Author(s):  
D. S. Clark ◽  
C. P. Lentz
Keyword(s):  
Citric Acid ◽  
Oxygen Pressure ◽  
Initial Rate ◽  
Total Yield ◽  
Acid Fermentation ◽  
Acid Yield ◽  
Flow Rates ◽  
Beet Molasses ◽  
Citric Acid Fermentation ◽  
Effect Of Oxygen

Recirculation of oxygen during submerged citric acid fermentation of ferrocyanide-treated beet molasses by Aspergillus niger was successful. Results obtained in 36-liter glass tower fermenters showed that neither rate of production nor total yield of citric acid was affected. No treatment of the recirculated gas other than carbon dioxide removal was required. At both low and high oxygen flow rates, increased oxygen pressure (up to 1.7 atm) markedly increased initial rate of production and total yield of citric acid. Oxygen pressure above 1.7 atm decreased citric acid yield. Within the limits tested, the effect of oxygen pressure was independent of total pressure.

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