Jul 1, 1984

Continuous growth kinetics of Candida utilis in pineapple cannery effluent

Biotechnology and Bioengineering
B A Prior

Abstract

Candida utilis was grown on a pineapple cannery effluent as the sole carbon and energy source in a chemostat at dilution rates between 0.10 and 0.62 h(-1) to determine the growth kinetics. The principal sugars in the effluent were sucrose, glucose, and fructose. The cell yield coefficient on carbohydrate varied with dilution rate and a maximum value of 0.63 was observed at a dilution rate of 0.33 h(-1). The steady-state concentrations of carbohydrate, reducing sugar, and chemical oxygen demand (COD) appeared to follow Monod saturation kinetics with increasing dilution rate, although none of the measured parameters represented a pure substrate. The maximum specific growth rate and reducing sugar saturation constant were 0.64 h(-1) and 0.060 g/L, respectively. A maximum cell mass productivity of 2.3 g/L h was observed at a dilution rate of 0.51 h(-1). At this dilution rate, only 68% of the COD was removed. A 95% COD removal was attained at a dilution rate of 0.10 h(-1). Optimal yeast productivity and COD reduction occurred at a dilution rate of 0.33 h(-1).

  • References5
  • Citations2

References

  • References5
  • Citations2

Citations

Mentioned in this Paper

Fructose
Torulopsis utilis
Pineapple Plant
Pineapple allergenic extract
Chemical Oxygen Demand
Dilution Technique
Sucrose
Sugars (Lab Test)
Carbohydrates
Candida utilis

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